$AZEK
AZEK Co Inc. Stock $azek

$azek Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 10-Q Financial Statement

#000162828024028198 Filed on June 14, 2024

Income Statement

Concept	2024 Q1	2023 Q3
Revenue	$418.4M	$388.8M
YoY Change	10.78%	27.63%
Cost Of Revenue	$261.3M	$239.1M
YoY Change	-3.04%	2.73%
Gross Profit	$157.1M	$149.7M
YoY Change	45.21%	108.31%
Gross Profit Margin	37.54%	38.5%
Selling, General & Admin	$83.20M	$81.67M
YoY Change	11.74%	26.51%
% of Gross Profit	52.97%	54.56%
Research & Development	$3.700M	$3.000M
YoY Change	76.19%	15.38%
% of Gross Profit	2.36%	2.0%
Depreciation & Amortization	$32.20M	$34.04M
YoY Change	1.8%	7.05%
% of Gross Profit	20.5%	22.74%
Operating Expenses	$86.90M	$84.67M
YoY Change	13.5%	26.07%
Operating Profit	$73.96M	$65.03M
YoY Change	119.39%	1282.69%
Interest Expense	$12.17M	-$8.812M
YoY Change	12.96%	42.59%
% of Operating Profit	16.45%	-13.55%
Other Income/Expense, Net	-$8.895M
YoY Change	-182.56%
Pretax Income	$65.07M	$55.97M
YoY Change	183.65%	-2936.64%
Income Tax	$15.31M	$13.32M
% Of Pretax Income	23.53%	23.81%
Net Earnings	$49.76M	$42.64M
YoY Change	205.77%	-992.86%
Net Earnings / Revenue	11.89%	10.97%
Basic Earnings Per Share	$0.34
Diluted Earnings Per Share	$0.34	$0.28
COMMON SHARES
Basic Shares Outstanding	145.7M shares
Diluted Shares Outstanding	147.7M shares

Balance Sheet

Concept	2024 Q1	2023 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$227.4M	$278.3M
YoY Change	80.11%	130.36%
Cash & Equivalents	$227.4M	$278.3M
Short-Term Investments
Other Short-Term Assets	$23.56M	$12.30M
YoY Change	7.97%	391.8%
Inventory	$213.7M	$221.1M
Prepaid Expenses	$12.99M	$13.60M
Receivables	$134.4M	$57.66M
Other Receivables	$0.00	$0.00
Total Short-Term Assets	$612.0M	$583.0M
YoY Change	7.64%	9.87%
LONG-TERM ASSETS
Property, Plant & Equipment	$456.7M	$501.0M
YoY Change	-9.96%	-3.26%
Goodwill	$967.8M	$994.3M
YoY Change	-2.65%	0.03%
Intangibles	$173.7M	$199.5M
YoY Change	-21.88%	-18.85%
Long-Term Investments
YoY Change
Other Assets	$85.23M	$87.79M
YoY Change	-7.0%	-7.35%
Total Long-Term Assets	$1.683B	$1.783B
YoY Change	-7.27%	-3.77%
TOTAL ASSETS
Total Short-Term Assets	$612.0M	$583.0M
Total Long-Term Assets	$1.683B	$1.783B
Total Assets	$2.296B	$2.366B
YoY Change	-3.71%	-0.74%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$52.73M	$56.02M
YoY Change	1.55%	14.35%
Accrued Expenses	$115.1M	$126.8M
YoY Change	-10.37%	5.97%
Deferred Revenue	$5.174M	$4.152M
YoY Change
Short-Term Debt	$0.00	$0.00
YoY Change
Long-Term Debt Due	$6.000M	$6.000M
YoY Change	0.0%	0.0%
Total Short-Term Liabilities	$180.0M	$195.2M
YoY Change	-6.51%	6.99%
LONG-TERM LIABILITIES
Long-Term Debt	$578.0M	$580.3M
YoY Change	-0.79%	-0.79%
Other Long-Term Liabilities	$101.2M	$104.1M
YoY Change	-7.46%	-1.89%
Total Long-Term Liabilities	$679.2M	$684.3M
YoY Change	-1.85%	-0.96%
TOTAL LIABILITIES
Total Short-Term Liabilities	$180.0M	$195.2M
Total Long-Term Liabilities	$679.2M	$684.3M
Total Liabilities	$908.6M	$935.9M
YoY Change	-4.25%	-0.29%
SHAREHOLDERS EQUITY
Retained Earnings	$10.53M	-$45.05M
YoY Change	-108.59%	-60.14%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)	$313.1M	$189.7M
YoY Change	288.52%	159.5%
Treasury Stock Shares
Shareholders Equity	$1.387B	$1.430B
YoY Change
Total Liabilities & Shareholders Equity	$2.296B	$2.366B
YoY Change	-3.71%	-0.74%

Cashflow Statement

Concept	2024 Q1	2023 Q3
OPERATING ACTIVITIES
Net Income	$49.76M	$42.64M
YoY Change	205.77%	-992.86%
Depreciation, Depletion And Amortization	$32.20M	$34.04M
YoY Change	1.8%	7.05%
Cash From Operating Activities	-$14.81M	$132.5M
YoY Change	-126.1%	230.24%
INVESTING ACTIVITIES
Capital Expenditures	$19.20M	$34.45M
YoY Change	13.22%	-204.55%
Acquisitions
YoY Change
Other Investing Activities	-$1.165M	$41.00K
YoY Change	817.32%	-100.19%
Cash From Investing Activities	-$20.36M	-$34.50M
YoY Change	19.2%	-36.54%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-12.19M	-64.34M
YoY Change	4662.11%	161.85%
NET CHANGE
Cash From Operating Activities	-14.81M	132.5M
Cash From Investing Activities	-20.36M	-34.50M
Cash From Financing Activities	-12.19M	-64.34M
Net Change In Cash	-47.36M	33.70M
YoY Change	-220.22%	-186.84%
FREE CASH FLOW
Cash From Operating Activities	-$14.81M	$132.5M
Capital Expenditures	$19.20M	$34.45M
Free Cash Flow	-$34.00M	$98.10M
YoY Change	-185.49%	34.23%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2024
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--09-30
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.51
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.228
CY2024Q1	us-gaap	Assets Assets	2295512000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	73719000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-14772000	usd
CY2024Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.34
CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.12
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.51
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.08
CY2024Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.34
CY2023Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.12
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.51
CY2024Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	145710663	shares
CY2023Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	150713075	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	150812859	shares
CY2023Q3	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherAssetsNoncurrent
CY2024Q1	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherAssetsNoncurrent
CY2024Q1	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherAssetsNoncurrent
CY2023Q3	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherAssetsNoncurrent
CY2024Q1	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#AccruedLiabilitiesAndOtherLiabilities
CY2023Q3	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#AccruedLiabilitiesAndOtherLiabilities
CY2023Q3	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#AccruedLiabilitiesAndOtherLiabilities
CY2024Q1	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#AccruedLiabilitiesAndOtherLiabilities
CY2023Q3	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2024Q1	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2023Q3	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2024Q1	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2024Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	456699000	usd
CY2023Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	501023000	usd
CY2024Q1	us-gaap	Goodwill Goodwill	967816000	usd
CY2023Q3	us-gaap	Goodwill Goodwill	994271000	usd
CY2024Q1	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	173732000	usd
CY2023Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	199497000	usd
CY2024Q1	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	85234000	usd
CY2023Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	87793000	usd
	dei	Entity Central Index Key EntityCentralIndexKey	0001782754
CY2023Q3	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherAssetsNoncurrent
CY2024Q1	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherAssetsNoncurrent
CY2024Q1	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherAssetsNoncurrent
CY2023Q3	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherAssetsNoncurrent
CY2024Q1	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#AccruedLiabilitiesAndOtherLiabilities
CY2023Q3	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#AccruedLiabilitiesAndOtherLiabilities
CY2023Q3	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#AccruedLiabilitiesAndOtherLiabilities
CY2024Q1	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#AccruedLiabilitiesAndOtherLiabilities
CY2023Q3	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2024Q1	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2023Q3	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2024Q1	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2024-03-31
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity Registrant Name EntityRegistrantName	The AZEK Company Inc.
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	90-1017663
	dei	Entity Address Address Line1 EntityAddressAddressLine1	1330 W Fulton Street, Suite 350
	dei	Entity Address City Or Town EntityAddressCityOrTown	Chicago
	dei	Entity Address State Or Province EntityAddressStateOrProvince	IL
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	60607
	dei	City Area Code CityAreaCode	877
	dei	Local Phone Number LocalPhoneNumber	275-2935
	dei	Security12b Title Security12bTitle	Class A Common Stock, par value $0.001 per share
	dei	Trading Symbol TradingSymbol	AZEK
	dei	Security Exchange Name SecurityExchangeName	NYSE
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2024Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	227399000	usd
CY2023Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	278314000	usd
CY2024Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	134378000	usd
CY2023Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	57660000	usd
CY2024Q1	us-gaap	Inventory Net InventoryNet	213706000	usd
CY2023Q3	us-gaap	Inventory Net InventoryNet	195600000	usd
CY2024Q1	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	12986000	usd
CY2024Q1	us-gaap	Other Assets Current OtherAssetsCurrent	23562000	usd
CY2023Q3	us-gaap	Other Assets Current OtherAssetsCurrent	16123000	usd
CY2024Q1	us-gaap	Assets Current AssetsCurrent	612031000	usd
CY2023Q3	us-gaap	Assets Current AssetsCurrent	561292000	usd
CY2023Q3	us-gaap	Assets Assets	2343876000	usd
CY2024Q1	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2024Q1	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	87000	usd
CY2024Q1	us-gaap	Accounts Payable Current AccountsPayableCurrent	52727000	usd
CY2023Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	56015000	usd
CY2024Q1	azek	Accrued Rebates AccruedRebates	46391000	usd
CY2023Q3	azek	Accrued Rebates AccruedRebates	60974000	usd
CY2024Q1	us-gaap	Long Term Debt Current LongTermDebtCurrent	6000000	usd
CY2024Q1	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	74857000	usd
CY2024Q1	us-gaap	Liabilities Current LiabilitiesCurrent	179975000	usd
CY2023Q3	us-gaap	Liabilities Current LiabilitiesCurrent	189716000	usd
CY2024Q1	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	577957000	usd
CY2023Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	580265000	usd
CY2023Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	104073000	usd
CY2024Q1	us-gaap	Liabilities Liabilities	908581000	usd
CY2023Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2023Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2024Q1	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2023Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2024Q1	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2023Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2024Q1	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1688604000	usd
CY2023Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1662322000	usd
CY2024Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	10529000	usd
CY2024Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	691000	usd
CY2023Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	1878000	usd
CY2024Q1	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	11520848	shares
CY2023Q3	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	8268423	shares
CY2024Q1	us-gaap	Treasury Stock Value TreasuryStockValue	313050000	usd
CY2023Q3	us-gaap	Treasury Stock Value TreasuryStockValue	189666000	usd
CY2024Q1	us-gaap	Stockholders Equity StockholdersEquity	1386931000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	1410313000	usd
CY2024Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2295512000	usd
CY2023Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2343876000	usd
CY2024Q1	us-gaap	Revenues Revenues	418408000	usd
CY2023Q1	us-gaap	Revenues Revenues	377692000	usd
	us-gaap	Revenues Revenues	658852000	usd
	us-gaap	Revenues Revenues	593951000	usd
CY2024Q1	us-gaap	Cost Of Revenue CostOfRevenue	261335000	usd
	us-gaap	Cost Of Revenue CostOfRevenue	411129000	usd
	us-gaap	Cost Of Revenue CostOfRevenue	440890000	usd
CY2024Q1	us-gaap	Gross Profit GrossProfit	157073000	usd
CY2023Q1	us-gaap	Gross Profit GrossProfit	110874000	usd
	us-gaap	Gross Profit GrossProfit	247723000	usd
	us-gaap	Gross Profit GrossProfit	153061000	usd
CY2024Q1	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	83198000	usd
CY2023Q1	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	74211000	usd
CY2024Q1	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	87000	usd
CY2023Q1	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-249000	usd
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-2098000	usd
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-183000	usd
CY2024Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	73962000	usd
	us-gaap	Operating Income Loss OperatingIncomeLoss	85181000	usd
CY2024Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-8680000	usd
CY2023Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-10774000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-16590000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-20073000	usd
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	usd
CY2024Q1	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-8895000	usd
CY2023Q1	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-10774000	usd
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-20073000	usd
CY2024Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	65067000	usd
CY2023Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	25640000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	106891000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-14916000	usd
CY2024Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	15309000	usd
CY2023Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7415000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	31985000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3406000	usd
CY2024Q1	us-gaap	Net Income Loss NetIncomeLoss	49758000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	18225000	usd
	us-gaap	Net Income Loss NetIncomeLoss	74906000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-11510000	usd
CY2024Q1	azek	Unrealized Gain Loss Due To Change In Fair Value Of Derivatives Net Of Tax UnrealizedGainLossDueToChangeInFairValueOfDerivativesNetOfTax	1908000	usd
CY2023Q1	azek	Unrealized Gain Loss Due To Change In Fair Value Of Derivatives Net Of Tax UnrealizedGainLossDueToChangeInFairValueOfDerivativesNetOfTax	-1466000	usd
	azek	Unrealized Gain Loss Due To Change In Fair Value Of Derivatives Net Of Tax UnrealizedGainLossDueToChangeInFairValueOfDerivativesNetOfTax	-1187000	usd
	azek	Unrealized Gain Loss Due To Change In Fair Value Of Derivatives Net Of Tax UnrealizedGainLossDueToChangeInFairValueOfDerivativesNetOfTax	-3262000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1908000	usd
CY2023Q1	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-249000	usd
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-2098000	usd
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-183000	usd
CY2024Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	73962000	usd
CY2023Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	36414000	usd
	us-gaap	Operating Income Loss OperatingIncomeLoss	85181000	usd
	us-gaap	Operating Income Loss OperatingIncomeLoss	5157000	usd
CY2024Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-8680000	usd
CY2023Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-10774000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-16590000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-20073000	usd
CY2024Q1	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	-215000	usd
CY2023Q1	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	usd
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	38300000	usd
CY2024Q1	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-8895000	usd
CY2023Q1	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-10774000	usd
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	21710000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-14916000	usd
CY2024Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	15309000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	31985000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3406000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	18225000	usd
	us-gaap	Net Income Loss NetIncomeLoss	74906000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-11510000	usd
CY2024Q1	azek	Unrealized Gain Loss Due To Change In Fair Value Of Derivatives Net Of Tax UnrealizedGainLossDueToChangeInFairValueOfDerivativesNetOfTax	1908000	usd
CY2023Q1	azek	Unrealized Gain Loss Due To Change In Fair Value Of Derivatives Net Of Tax UnrealizedGainLossDueToChangeInFairValueOfDerivativesNetOfTax	-1466000	usd
	azek	Unrealized Gain Loss Due To Change In Fair Value Of Derivatives Net Of Tax UnrealizedGainLossDueToChangeInFairValueOfDerivativesNetOfTax	-1187000	usd
	azek	Unrealized Gain Loss Due To Change In Fair Value Of Derivatives Net Of Tax UnrealizedGainLossDueToChangeInFairValueOfDerivativesNetOfTax	-3262000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1908000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1466000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1187000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3262000	usd
CY2024Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	51666000	usd
CY2023Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	16759000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-14772000	usd
CY2024Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.34
CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.12
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.51
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.08
CY2024Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.34
CY2023Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.12
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.51
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.08
CY2024Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	145710663	shares
CY2023Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	150713075	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	146516971	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	150812859	shares
CY2024Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	147738277	shares
CY2023Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	151268535	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	148231866	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	150812859	shares
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	1339404000	usd
CY2024Q1	us-gaap	Net Income Loss NetIncomeLoss	49758000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1908000	usd
CY2024Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6264000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1466000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1187000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3262000	usd
CY2024Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	51666000	usd
CY2023Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	16759000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	73719000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-14772000	usd
CY2024Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.34
CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.12
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.51
CY2024Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.34
CY2023Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.12
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.51
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.08
CY2023Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	150713075	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	146516971	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	150812859	shares
CY2024Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	147738277	shares
CY2023Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	151268535	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	148231866	shares
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	1339404000	usd
CY2024Q1	us-gaap	Net Income Loss NetIncomeLoss	49758000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1908000	usd
CY2024Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6264000	usd
CY2024Q1	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	15391000	usd
CY2024Q1	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-379000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	1410313000	usd
	us-gaap	Net Income Loss NetIncomeLoss	74906000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1187000	usd
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	14686000	usd
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	18629000	usd
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-4201000	usd
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	126215000	usd
CY2024Q1	us-gaap	Stockholders Equity StockholdersEquity	1386931000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	1395137000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	18225000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1466000	usd
CY2023Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5593000	usd
CY2023Q1	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1901000	usd
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	1419390000	usd
CY2022Q3	us-gaap	Stockholders Equity StockholdersEquity	1430707000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-11510000	usd
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9502000	usd
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1901000	usd
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	7488000	usd
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	1419390000	usd
	us-gaap	Net Income Loss NetIncomeLoss	74906000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-11510000	usd
	azek	Depreciation Expense Including Finance Lease Right Of Use Asset Amortization DepreciationExpenseIncludingFinanceLeaseRightOfUseAssetAmortization	44105000	usd
	azek	Depreciation Expense Including Finance Lease Right Of Use Asset Amortization DepreciationExpenseIncludingFinanceLeaseRightOfUseAssetAmortization	42018000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	20036000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	23457000	usd
	azek	Non Cash Interest Expense NonCashInterestExpense	824000	usd
	azek	Non Cash Interest Expense NonCashInterestExpense	824000	usd
	azek	Non Cash Lease Expense NonCashLeaseExpense	-84000	usd
CY2024Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	147738277	shares
CY2023Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	151268535	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	148231866	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	150812859	shares
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	1339404000	usd
CY2024Q1	us-gaap	Net Income Loss NetIncomeLoss	49758000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1908000	usd
CY2024Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6264000	usd
CY2024Q1	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	15391000	usd
CY2024Q1	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-379000	usd
CY2024Q1	us-gaap	Stockholders Equity StockholdersEquity	1386931000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	1410313000	usd
	us-gaap	Net Income Loss NetIncomeLoss	74906000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1187000	usd
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	14686000	usd
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	126215000	usd
CY2024Q1	us-gaap	Stockholders Equity StockholdersEquity	1386931000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	1395137000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	18225000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1466000	usd
CY2023Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5593000	usd
CY2023Q1	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1901000	usd
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	1419390000	usd
CY2022Q3	us-gaap	Stockholders Equity StockholdersEquity	1430707000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-11510000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-3262000	usd
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9502000	usd
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1901000	usd
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-460000	usd
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	7488000	usd
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	1419390000	usd
	us-gaap	Net Income Loss NetIncomeLoss	74906000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-11510000	usd
	azek	Depreciation Expense Including Finance Lease Right Of Use Asset Amortization DepreciationExpenseIncludingFinanceLeaseRightOfUseAssetAmortization	44105000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	20036000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	23457000	usd
	azek	Non Cash Interest Expense NonCashInterestExpense	824000	usd
	azek	Non Cash Interest Expense NonCashInterestExpense	824000	usd
	azek	Non Cash Lease Expense NonCashLeaseExpense	-84000	usd
	azek	Non Cash Lease Expense NonCashLeaseExpense	-122000	usd
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-9717000	usd
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	465000	usd
	azek	Non Cash Compensation Expense NonCashCompensationExpense	14686000	usd
	azek	Non Cash Compensation Expense NonCashCompensationExpense	12678000	usd
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	0	usd
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	400000	usd
	azek	Gain Loss On Sale Of Property Plant Equipment Including Cip Write Offs GainLossOnSaleOfPropertyPlantEquipmentIncludingCipWriteOffs	-2098000	usd
	azek	Gain Loss On Sale Of Property Plant Equipment Including Cip Write Offs GainLossOnSaleOfPropertyPlantEquipmentIncludingCipWriteOffs	-1824000	usd
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	38300000	usd
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	usd
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	80829000	usd
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	62586000	usd
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	39771000	usd
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-51571000	usd
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	9334000	usd
CY2024Q1	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	15391000	usd
CY2024Q1	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-379000	usd
CY2024Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	25415000	usd
CY2024Q1	us-gaap	Stockholders Equity StockholdersEquity	1386931000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	1410313000	usd
	us-gaap	Net Income Loss NetIncomeLoss	74906000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1187000	usd
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	14686000	usd
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	18629000	usd
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	126215000	usd
CY2024Q1	us-gaap	Stockholders Equity StockholdersEquity	1386931000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	1395137000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	18225000	usd
CY2023Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5593000	usd
CY2023Q1	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1901000	usd
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	1419390000	usd
CY2022Q3	us-gaap	Stockholders Equity StockholdersEquity	1430707000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-11510000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-3262000	usd
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9502000	usd
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1901000	usd
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	7488000	usd
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	1419390000	usd
	us-gaap	Net Income Loss NetIncomeLoss	74906000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-11510000	usd
	azek	Depreciation Expense Including Finance Lease Right Of Use Asset Amortization DepreciationExpenseIncludingFinanceLeaseRightOfUseAssetAmortization	42018000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	20036000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	23457000	usd
	azek	Non Cash Interest Expense NonCashInterestExpense	824000	usd
	azek	Non Cash Interest Expense NonCashInterestExpense	824000	usd
	azek	Non Cash Lease Expense NonCashLeaseExpense	-84000	usd
	azek	Non Cash Lease Expense NonCashLeaseExpense	-122000	usd
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-9717000	usd
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	465000	usd
	azek	Non Cash Compensation Expense NonCashCompensationExpense	14686000	usd
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	0	usd
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	400000	usd
	azek	Gain Loss On Sale Of Property Plant Equipment Including Cip Write Offs GainLossOnSaleOfPropertyPlantEquipmentIncludingCipWriteOffs	-2098000	usd
	azek	Gain Loss On Sale Of Property Plant Equipment Including Cip Write Offs GainLossOnSaleOfPropertyPlantEquipmentIncludingCipWriteOffs	-1824000	usd
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	38300000	usd
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	usd
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	80829000	usd
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	39771000	usd
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-51571000	usd
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	9334000	usd
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	19054000	usd
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-1866000	usd
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	15702000	usd
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-6283000	usd
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	8530000	usd
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	1565000	usd
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	55000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-31094000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	64142000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	36879000	usd
	azek	Non Cash Lease Expense NonCashLeaseExpense	-122000	usd
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-9717000	usd
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	465000	usd
	azek	Non Cash Compensation Expense NonCashCompensationExpense	14686000	usd
	azek	Non Cash Compensation Expense NonCashCompensationExpense	12678000	usd
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	0	usd
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	400000	usd
	azek	Gain Loss On Sale Of Property Plant Equipment Including Cip Write Offs GainLossOnSaleOfPropertyPlantEquipmentIncludingCipWriteOffs	-2098000	usd
	azek	Gain Loss On Sale Of Property Plant Equipment Including Cip Write Offs GainLossOnSaleOfPropertyPlantEquipmentIncludingCipWriteOffs	-1824000	usd
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	usd
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	80829000	usd
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	62586000	usd
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	39771000	usd
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-51571000	usd
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	9334000	usd
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	19054000	usd
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-1866000	usd
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	15702000	usd
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-6283000	usd
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	8530000	usd
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	1565000	usd
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	55000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-31094000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	64142000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	36879000	usd
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	263000	usd
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	99000	usd
	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	131783000	usd
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	usd
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	161000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	95167000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-47346000	usd
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	3000000	usd
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	3000000	usd
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	0	usd
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	25000000	usd
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	0	usd
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	25000000	usd
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1421000	usd
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1307000	usd
	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	0	usd
	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	1000000	usd
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	18628000	usd
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1901000	usd
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	4201000	usd
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	460000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	124994000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	7488000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-114988000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-11354000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-50915000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	5442000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	278314000	usd
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	120817000	usd
CY2024Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	227399000	usd
CY2023Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	126259000	usd
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	19054000	usd
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-1866000	usd
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	15702000	usd
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-6283000	usd
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	8530000	usd
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	1565000	usd
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	55000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-31094000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	64142000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	36879000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	47284000	usd
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	99000	usd
	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	131783000	usd
	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	0	usd
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	usd
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	161000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	95167000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-47346000	usd
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	3000000	usd
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	3000000	usd
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	0	usd
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	25000000	usd
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	0	usd
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	25000000	usd
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1421000	usd
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1307000	usd
	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	1000000	usd
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	18628000	usd
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1901000	usd
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	4201000	usd
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	460000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	124994000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	7488000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-114988000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-11354000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-50915000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	5442000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	278314000	usd
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	120817000	usd
CY2024Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	227399000	usd
CY2023Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	126259000	usd
	us-gaap	Interest Paid Net InterestPaidNet	23455000	usd
	us-gaap	Interest Paid Net InterestPaidNet	23611000	usd
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	47020000	usd
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	14959000	usd
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	4704000	usd
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	12984000	usd
	azek	Right Of Use Operating And Finance Lease Assets Obtained In Exchange For Lease Liabilities RightOfUseOperatingAndFinanceLeaseAssetsObtainedInExchangeForLeaseLiabilities	2654000	usd
	azek	Right Of Use Operating And Finance Lease Assets Obtained In Exchange For Lease Liabilities RightOfUseOperatingAndFinanceLeaseAssetsObtainedInExchangeForLeaseLiabilities	2439000	usd
CY2023Q3	us-gaap	Goodwill Goodwill	994271000	usd
CY2023Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	199497000	usd
CY2023Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	87793000	usd
CY2023Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	56015000	usd
CY2023Q3	us-gaap	Interest Payable Current InterestPayableCurrent	0	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	47284000	usd
	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	131783000	usd
	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	0	usd
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	usd
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	161000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	95167000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-47346000	usd
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	3000000	usd
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	3000000	usd
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	0	usd
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	25000000	usd
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	0	usd
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	25000000	usd
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1421000	usd
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1307000	usd
	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	0	usd
	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	1000000	usd
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	18628000	usd
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1901000	usd
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	4201000	usd
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	460000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	124994000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	7488000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-114988000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-11354000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-50915000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	5442000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	278314000	usd
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	120817000	usd
CY2024Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	227399000	usd
CY2023Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	126259000	usd
	us-gaap	Interest Paid Net InterestPaidNet	23455000	usd
	us-gaap	Interest Paid Net InterestPaidNet	23611000	usd
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	47020000	usd
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	14959000	usd
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	4704000	usd
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	12984000	usd
	azek	Right Of Use Operating And Finance Lease Assets Obtained In Exchange For Lease Liabilities RightOfUseOperatingAndFinanceLeaseAssetsObtainedInExchangeForLeaseLiabilities	2654000	usd
	azek	Right Of Use Operating And Finance Lease Assets Obtained In Exchange For Lease Liabilities RightOfUseOperatingAndFinanceLeaseAssetsObtainedInExchangeForLeaseLiabilities	2439000	usd
CY2023Q3	us-gaap	Liabilities Current LiabilitiesCurrent	189716000	usd
CY2023Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	580265000	usd
	us-gaap	Interest Paid Net InterestPaidNet	23455000	usd
	us-gaap	Interest Paid Net InterestPaidNet	23611000	usd
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	47020000	usd
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	14959000	usd
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	4704000	usd
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	12984000	usd
	azek	Right Of Use Operating And Finance Lease Assets Obtained In Exchange For Lease Liabilities RightOfUseOperatingAndFinanceLeaseAssetsObtainedInExchangeForLeaseLiabilities	2654000	usd
	azek	Right Of Use Operating And Finance Lease Assets Obtained In Exchange For Lease Liabilities RightOfUseOperatingAndFinanceLeaseAssetsObtainedInExchangeForLeaseLiabilities	2439000	usd
	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:6pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates </span></div>The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and reported amounts of revenues and expenses during the reporting period. Significant estimates include revenue recognition, reserves for excess inventory, inventory obsolescence, inventory valuation, product warranties, customer rebates, stock-based compensation, litigation, income taxes, contingent consideration, goodwill and intangible asset valuation and accounting for long-lived assets. Management’s estimates and assumptions are evaluated on an ongoing basis and are based on historical experience, current conditions and available information. Actual results may differ from estimated amounts. Estimates are revised as additional information becomes available.
CY2024Q1	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	3700000	usd
CY2023Q1	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	2100000	usd
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	6800000	usd
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	4100000	usd
CY2023Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	278314000	usd
CY2023Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	57660000	usd
CY2023Q3	us-gaap	Inventory Net InventoryNet	195600000	usd
CY2023Q3	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	13595000	usd
CY2023Q3	us-gaap	Other Assets Current OtherAssetsCurrent	16123000	usd
CY2023Q3	us-gaap	Assets Current AssetsCurrent	561292000	usd
CY2023Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	501023000	usd
	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:6pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates </span></div>The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and reported amounts of revenues and expenses during the reporting period. Significant estimates include revenue recognition, reserves for excess inventory, inventory obsolescence, inventory valuation, product warranties, customer rebates, stock-based compensation, litigation, income taxes, contingent consideration, goodwill and intangible asset valuation and accounting for long-lived assets. Management’s estimates and assumptions are evaluated on an ongoing basis and are based on historical experience, current conditions and available information. Actual results may differ from estimated amounts. Estimates are revised as additional information becomes available.
CY2024Q1	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	3700000	usd
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	6800000	usd
CY2023Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	278314000	usd
CY2023Q3	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	13595000	usd
CY2023Q3	us-gaap	Other Assets Current OtherAssetsCurrent	16123000	usd
CY2023Q3	us-gaap	Assets Current AssetsCurrent	561292000	usd
CY2023Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	501023000	usd
CY2023Q3	us-gaap	Goodwill Goodwill	994271000	usd
CY2023Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	199497000	usd
CY2023Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	87793000	usd
CY2023Q3	us-gaap	Assets Assets	2343876000	usd
CY2023Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	56015000	usd
CY2023Q3	azek	Accrued Rebates AccruedRebates	60974000	usd
CY2023Q3	us-gaap	Interest Payable Current InterestPayableCurrent	0	usd
CY2023Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	6000000	usd
CY2023Q3	us-gaap	Liabilities Current LiabilitiesCurrent	189716000	usd
CY2023Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	59509000	usd
CY2023Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	580265000	usd
CY2023Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	104073000	usd
CY2023Q3	us-gaap	Liabilities Liabilities	933563000	usd
CY2023Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2023Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2023Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2023Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2023Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2023Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1662322000	usd
CY2023Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-64377000	usd
CY2023Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	1878000	usd
	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:6pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates </span></div>The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and reported amounts of revenues and expenses during the reporting period. Significant estimates include revenue recognition, reserves for excess inventory, inventory obsolescence, inventory valuation, product warranties, customer rebates, stock-based compensation, litigation, income taxes, contingent consideration, goodwill and intangible asset valuation and accounting for long-lived assets. Management’s estimates and assumptions are evaluated on an ongoing basis and are based on historical experience, current conditions and available information. Actual results may differ from estimated amounts. Estimates are revised as additional information becomes available.
CY2024Q1	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	3700000	usd
CY2023Q1	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	2100000	usd
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	6800000	usd
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	4100000	usd
CY2023Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	278314000	usd
CY2023Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	57660000	usd
CY2023Q3	us-gaap	Inventory Net InventoryNet	195600000	usd
CY2023Q3	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	13595000	usd
CY2023Q3	us-gaap	Other Assets Current OtherAssetsCurrent	16123000	usd
CY2023Q3	us-gaap	Assets Current AssetsCurrent	561292000	usd
CY2023Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	501023000	usd
CY2023Q3	us-gaap	Goodwill Goodwill	994271000	usd
CY2023Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	199497000	usd
CY2023Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	87793000	usd
CY2023Q3	us-gaap	Assets Assets	2343876000	usd
CY2023Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	6000000	usd
CY2023Q3	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	66727000	usd
CY2023Q3	us-gaap	Liabilities Current LiabilitiesCurrent	189716000	usd
CY2023Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	59509000	usd
CY2023Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	580265000	usd
CY2023Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	104073000	usd
CY2023Q3	us-gaap	Liabilities Liabilities	933563000	usd
CY2023Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2023Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2023Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2023Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2023Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2023Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1662322000	usd
CY2023Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-64377000	usd
CY2023Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	1878000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	1410313000	usd
CY2023Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	104073000	usd
CY2023Q3	us-gaap	Liabilities Liabilities	933563000	usd
CY2023Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2023Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2023Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2023Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2023Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2023Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1662322000	usd
CY2023Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-64377000	usd
CY2023Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	1878000	usd
CY2023Q3	us-gaap	Treasury Stock Value TreasuryStockValue	189666000	usd
CY2023Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2343876000	usd
CY2023Q1	us-gaap	Revenues Revenues	377692000	usd
	us-gaap	Revenues Revenues	593951000	usd
CY2023Q1	us-gaap	Cost Of Revenue CostOfRevenue	266818000	usd
	us-gaap	Cost Of Revenue CostOfRevenue	440890000	usd
CY2023Q1	us-gaap	Gross Profit GrossProfit	110874000	usd
	us-gaap	Gross Profit GrossProfit	153061000	usd
CY2023Q1	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	74211000	usd
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	147721000	usd
CY2023Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	36414000	usd
	us-gaap	Operating Income Loss OperatingIncomeLoss	5157000	usd
CY2023Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-10774000	usd
CY2023Q1	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-10774000	usd
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-20073000	usd
CY2023Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	25640000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-14916000	usd
CY2023Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7415000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3406000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-11510000	usd
CY2023Q1	azek	Unrealized Gain Loss Due To Change In Fair Value Of Derivatives Net Of Tax UnrealizedGainLossDueToChangeInFairValueOfDerivativesNetOfTax	-1466000	usd
	azek	Unrealized Gain Loss Due To Change In Fair Value Of Derivatives Net Of Tax UnrealizedGainLossDueToChangeInFairValueOfDerivativesNetOfTax	-3262000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1466000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3262000	usd
CY2023Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	16759000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-14772000	usd
CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.12
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.08
CY2023Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.12
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.08
CY2023Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	150713075	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	150812859	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	150812859	shares
	us-gaap	Net Income Loss NetIncomeLoss	-11510000	usd
	azek	Depreciation Expense Including Finance Lease Right Of Use Asset Amortization DepreciationExpenseIncludingFinanceLeaseRightOfUseAssetAmortization	42018000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	23457000	usd
	azek	Non Cash Interest Expense NonCashInterestExpense	824000	usd
	azek	Non Cash Lease Expense NonCashLeaseExpense	-122000	usd
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	465000	usd
	azek	Non Cash Compensation Expense NonCashCompensationExpense	12678000	usd
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	400000	usd
	azek	Gain Loss On Sale Of Property Plant Equipment Including Cip Write Offs GainLossOnSaleOfPropertyPlantEquipmentIncludingCipWriteOffs	-1824000	usd
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	62586000	usd
CY2023Q3	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	8268423	shares
CY2023Q3	us-gaap	Treasury Stock Value TreasuryStockValue	189666000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	1410313000	usd
CY2023Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2343876000	usd
CY2023Q1	us-gaap	Revenues Revenues	377692000	usd
	us-gaap	Revenues Revenues	593951000	usd
	us-gaap	Cost Of Revenue CostOfRevenue	440890000	usd
CY2023Q1	us-gaap	Gross Profit GrossProfit	110874000	usd
CY2023Q1	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	74211000	usd
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	147721000	usd
CY2023Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	36414000	usd
	us-gaap	Operating Income Loss OperatingIncomeLoss	5157000	usd
CY2023Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-10774000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-20073000	usd
CY2023Q1	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-10774000	usd
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-20073000	usd
CY2023Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	25640000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-14916000	usd
CY2023Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7415000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3406000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	18225000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-11510000	usd
CY2023Q1	azek	Unrealized Gain Loss Due To Change In Fair Value Of Derivatives Net Of Tax UnrealizedGainLossDueToChangeInFairValueOfDerivativesNetOfTax	-1466000	usd
	azek	Unrealized Gain Loss Due To Change In Fair Value Of Derivatives Net Of Tax UnrealizedGainLossDueToChangeInFairValueOfDerivativesNetOfTax	-3262000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1466000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3262000	usd
CY2023Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	16759000	usd
CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.12
CY2023Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.12
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.08
CY2023Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	150713075	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	150812859	shares
CY2023Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	151268535	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	150812859	shares
	azek	Depreciation Expense Including Finance Lease Right Of Use Asset Amortization DepreciationExpenseIncludingFinanceLeaseRightOfUseAssetAmortization	42018000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	23457000	usd
	azek	Non Cash Lease Expense NonCashLeaseExpense	-122000	usd
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	465000	usd
	azek	Non Cash Compensation Expense NonCashCompensationExpense	12678000	usd
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	400000	usd
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	62586000	usd
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-51571000	usd
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	15702000	usd
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	8530000	usd
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	55000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	64142000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	47284000	usd
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	99000	usd
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	161000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-47346000	usd
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	3000000	usd
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	25000000	usd
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	25000000	usd
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1307000	usd
	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	1000000	usd
CY2023Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2343876000	usd
CY2023Q1	us-gaap	Revenues Revenues	377692000	usd
	us-gaap	Revenues Revenues	593951000	usd
CY2023Q1	us-gaap	Cost Of Revenue CostOfRevenue	266818000	usd
	us-gaap	Cost Of Revenue CostOfRevenue	440890000	usd
	us-gaap	Gross Profit GrossProfit	153061000	usd
CY2023Q1	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	74211000	usd
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	147721000	usd
CY2023Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	36414000	usd
	us-gaap	Operating Income Loss OperatingIncomeLoss	5157000	usd
CY2023Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-10774000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-20073000	usd
CY2023Q1	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-10774000	usd
CY2023Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	25640000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-14916000	usd
CY2023Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7415000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3406000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	18225000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-11510000	usd
CY2023Q1	azek	Unrealized Gain Loss Due To Change In Fair Value Of Derivatives Net Of Tax UnrealizedGainLossDueToChangeInFairValueOfDerivativesNetOfTax	-1466000	usd
	azek	Unrealized Gain Loss Due To Change In Fair Value Of Derivatives Net Of Tax UnrealizedGainLossDueToChangeInFairValueOfDerivativesNetOfTax	-3262000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1466000	usd
CY2023Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	16759000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-14772000	usd
CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.12
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.08
CY2023Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.12
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.08
CY2023Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	150713075	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	150812859	shares
CY2023Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	151268535	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	150812859	shares
	us-gaap	Net Income Loss NetIncomeLoss	-11510000	usd
	azek	Depreciation Expense Including Finance Lease Right Of Use Asset Amortization DepreciationExpenseIncludingFinanceLeaseRightOfUseAssetAmortization	42018000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	23457000	usd
	azek	Non Cash Interest Expense NonCashInterestExpense	824000	usd
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	465000	usd
	azek	Non Cash Compensation Expense NonCashCompensationExpense	12678000	usd
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	400000	usd
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	62586000	usd
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-51571000	usd
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	15702000	usd
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	55000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	64142000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	47284000	usd
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	99000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-47346000	usd
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	3000000	usd
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	25000000	usd
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	25000000	usd
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1307000	usd
	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	1000000	usd
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	460000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	7488000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-11354000	usd
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-51571000	usd
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	19054000	usd
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	15702000	usd
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	8530000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	47284000	usd
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	99000	usd
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	161000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-47346000	usd
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	3000000	usd
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	25000000	usd
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	25000000	usd
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1307000	usd
	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	1000000	usd
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	460000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	7488000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-11354000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	5442000	usd
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	120817000	usd
	us-gaap	Interest Paid Net InterestPaidNet	23611000	usd
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	14959000	usd
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	12984000	usd
	azek	Right Of Use Operating And Finance Lease Assets Obtained In Exchange For Lease Liabilities RightOfUseOperatingAndFinanceLeaseAssetsObtainedInExchangeForLeaseLiabilities	2439000	usd
CY2024Q1	azek	Accrued Rebates AccruedRebates	46400000	usd
CY2023Q1	azek	Accrued Rebates AccruedRebates	65100000	usd
CY2024Q1	azek	Contra Trade Receivable ContraTradeReceivable	8600000	usd
CY2023Q1	azek	Contra Trade Receivable ContraTradeReceivable	7700000	usd
CY2023Q4	azek	Accrued Rebates Current AccruedRebatesCurrent	72393000	usd
CY2022Q4	azek	Accrued Rebates Current AccruedRebatesCurrent	61066000	usd
CY2023Q3	azek	Accrued Rebates Current AccruedRebatesCurrent	66958000	usd
CY2022Q3	azek	Accrued Rebates Current AccruedRebatesCurrent	56542000	usd
CY2024Q1	azek	Rebate Expense RebateExpense	35930000	usd
CY2023Q1	azek	Rebate Expense RebateExpense	29703000	usd
	azek	Rebate Expense RebateExpense	45419000	usd
CY2024Q1	azek	Payments For Rebate PaymentsForRebate	53328000	usd
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1901000	usd
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	460000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	7488000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-11354000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	5442000	usd
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	120817000	usd
	us-gaap	Interest Paid Net InterestPaidNet	23611000	usd
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	14959000	usd
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	12984000	usd
	azek	Right Of Use Operating And Finance Lease Assets Obtained In Exchange For Lease Liabilities RightOfUseOperatingAndFinanceLeaseAssetsObtainedInExchangeForLeaseLiabilities	2439000	usd
CY2023Q1	azek	Accrued Rebates AccruedRebates	65100000	usd
CY2024Q1	azek	Contra Trade Receivable ContraTradeReceivable	8600000	usd
CY2023Q1	azek	Contra Trade Receivable ContraTradeReceivable	7700000	usd
CY2023Q4	azek	Accrued Rebates Current AccruedRebatesCurrent	72393000	usd
CY2022Q4	azek	Accrued Rebates Current AccruedRebatesCurrent	61066000	usd
CY2023Q3	azek	Accrued Rebates Current AccruedRebatesCurrent	66958000	usd
CY2022Q3	azek	Accrued Rebates Current AccruedRebatesCurrent	56542000	usd
CY2024Q1	azek	Rebate Expense RebateExpense	35930000	usd
CY2023Q1	azek	Rebate Expense RebateExpense	29703000	usd
	azek	Rebate Expense RebateExpense	58168000	usd
	azek	Rebate Expense RebateExpense	45419000	usd
CY2024Q1	azek	Payments For Rebate PaymentsForRebate	53328000	usd
	azek	Payments For Rebate PaymentsForRebate	29220000	usd
CY2024Q1	azek	Accrued Rebates Current AccruedRebatesCurrent	54995000	usd
CY2023Q1	azek	Accrued Rebates Current AccruedRebatesCurrent	72741000	usd
CY2024Q1	azek	Accrued Rebates Current AccruedRebatesCurrent	54995000	usd
CY2023Q1	azek	Accrued Rebates Current AccruedRebatesCurrent	72741000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	5442000	usd
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	120817000	usd
CY2023Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	126259000	usd
	us-gaap	Interest Paid Net InterestPaidNet	23611000	usd
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	14959000	usd
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	12984000	usd
	azek	Right Of Use Operating And Finance Lease Assets Obtained In Exchange For Lease Liabilities RightOfUseOperatingAndFinanceLeaseAssetsObtainedInExchangeForLeaseLiabilities	2439000	usd
CY2024Q1	azek	Accrued Rebates AccruedRebates	46400000	usd
CY2023Q1	azek	Accrued Rebates AccruedRebates	65100000	usd
CY2024Q1	azek	Contra Trade Receivable ContraTradeReceivable	8600000	usd
CY2023Q1	azek	Contra Trade Receivable ContraTradeReceivable	7700000	usd
CY2023Q4	azek	Accrued Rebates Current AccruedRebatesCurrent	72393000	usd
CY2022Q4	azek	Accrued Rebates Current AccruedRebatesCurrent	61066000	usd
CY2023Q3	azek	Accrued Rebates Current AccruedRebatesCurrent	66958000	usd
CY2022Q3	azek	Accrued Rebates Current AccruedRebatesCurrent	56542000	usd
CY2024Q1	azek	Rebate Expense RebateExpense	35930000	usd
CY2023Q1	azek	Rebate Expense RebateExpense	29703000	usd
	azek	Rebate Expense RebateExpense	45419000	usd
	azek	Payments For Rebate PaymentsForRebate	70131000	usd
	azek	Payments For Rebate PaymentsForRebate	29220000	usd
CY2024Q1	azek	Accrued Rebates Current AccruedRebatesCurrent	54995000	usd
CY2024Q1	azek	Accrued Rebates Current AccruedRebatesCurrent	54995000	usd
CY2023Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	893731000	usd
CY2024Q1	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	386405000	usd
CY2023Q1	azek	Payments For Rebate PaymentsForRebate	18028000	usd
	azek	Payments For Rebate PaymentsForRebate	70131000	usd
	azek	Payments For Rebate PaymentsForRebate	29220000	usd
CY2024Q1	azek	Accrued Rebates Current AccruedRebatesCurrent	54995000	usd
CY2023Q1	azek	Accrued Rebates Current AccruedRebatesCurrent	72741000	usd
CY2024Q1	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	49348000	usd
CY2023Q3	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	60349000	usd
CY2024Q1	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	30558000	usd
CY2023Q3	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	33240000	usd
CY2024Q1	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	133800000	usd
CY2023Q3	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	102011000	usd
CY2024Q1	us-gaap	Inventory Net InventoryNet	213706000	usd
CY2023Q3	us-gaap	Inventory Net InventoryNet	195600000	usd
CY2023Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	392708000	usd
CY2024Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	456699000	usd
CY2023Q3	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	60349000	usd
CY2024Q1	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	30558000	usd
CY2024Q1	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	133800000	usd
CY2023Q3	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	102011000	usd
CY2024Q1	us-gaap	Inventory Net InventoryNet	213706000	usd
CY2023Q3	us-gaap	Inventory Net InventoryNet	195600000	usd
CY2024Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	843104000	usd
CY2023Q3	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	60349000	usd
CY2024Q1	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	30558000	usd
CY2023Q3	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	33240000	usd
CY2024Q1	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	133800000	usd
CY2023Q3	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	102011000	usd
CY2024Q1	us-gaap	Inventory Net InventoryNet	213706000	usd
CY2023Q3	us-gaap	Inventory Net InventoryNet	195600000	usd
CY2024Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	843104000	usd
CY2023Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	893731000	usd
CY2024Q1	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	386405000	usd
CY2023Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	392708000	usd
CY2024Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	456699000	usd
CY2023Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	501023000	usd
CY2024Q1	us-gaap	Depreciation Depreciation	21000000	usd
CY2023Q1	us-gaap	Depreciation Depreciation	19500000	usd
	us-gaap	Depreciation Depreciation	39500000	usd
CY2024Q1	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	800000	usd
CY2023Q1	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1600000	usd
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1900000	usd
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	2900000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	23500000	usd
CY2024Q1	us-gaap	Finite Lived Intangible Assets Remaining Amortization Period1 FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1	P10Y10M24D
CY2024Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	843104000	usd
CY2023Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	893731000	usd
CY2024Q1	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	386405000	usd
CY2023Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	392708000	usd
CY2024Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	456699000	usd
CY2024Q1	us-gaap	Depreciation Depreciation	21000000	usd
CY2023Q1	us-gaap	Depreciation Depreciation	19500000	usd
	us-gaap	Depreciation Depreciation	41500000	usd
	us-gaap	Depreciation Depreciation	39500000	usd
CY2024Q1	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	800000	usd
CY2023Q1	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1600000	usd
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1900000	usd
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	2900000	usd
CY2023Q3	us-gaap	Goodwill Gross GoodwillGross	1026471000	usd
CY2023Q3	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	32200000	usd
CY2023Q3	us-gaap	Goodwill Goodwill	994271000	usd
	azek	Goodwill Disposal Related To Sale Of Business Unit Before Impairment GoodwillDisposalRelatedToSaleOfBusinessUnitBeforeImpairment	58655000	usd
	azek	Goodwill Written Off Related To Sale Of Business Unit Accumulated Impairment Losses GoodwillWrittenOffRelatedToSaleOfBusinessUnitAccumulatedImpairmentLosses	32200000	usd
	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	26455000	usd
CY2024Q1	us-gaap	Goodwill Gross GoodwillGross	967816000	usd
CY2024Q1	us-gaap	Goodwill Goodwill	967816000	usd
CY2024Q1	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	0	usd
CY2023Q3	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	0	usd
CY2024Q1	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	687067000	usd
CY2024Q1	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	513335000	usd
CY2024Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	173732000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	720068000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	520571000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	199497000	usd
CY2024Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	9900000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	20000000	usd
CY2023Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	501023000	usd
CY2024Q1	us-gaap	Depreciation Depreciation	21000000	usd
	us-gaap	Depreciation Depreciation	41500000	usd
	us-gaap	Depreciation Depreciation	39500000	usd
CY2024Q1	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	800000	usd
CY2023Q1	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1600000	usd
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1900000	usd
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	2900000	usd
CY2023Q3	us-gaap	Goodwill Gross GoodwillGross	1026471000	usd
CY2023Q3	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	32200000	usd
CY2023Q3	us-gaap	Goodwill Goodwill	994271000	usd
	azek	Goodwill Disposal Related To Sale Of Business Unit Before Impairment GoodwillDisposalRelatedToSaleOfBusinessUnitBeforeImpairment	58655000	usd
	azek	Goodwill Written Off Related To Sale Of Business Unit Accumulated Impairment Losses GoodwillWrittenOffRelatedToSaleOfBusinessUnitAccumulatedImpairmentLosses	32200000	usd
	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	26455000	usd
CY2024Q1	us-gaap	Goodwill Gross GoodwillGross	967816000	usd
CY2024Q1	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	0	usd
CY2024Q1	us-gaap	Goodwill Goodwill	967816000	usd
CY2024Q1	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	0	usd
CY2023Q3	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	0	usd
CY2024Q1	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	687067000	usd
CY2024Q1	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	513335000	usd
CY2024Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	173732000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	720068000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	520571000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	199497000	usd
CY2024Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	9900000	usd
CY2023Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	11600000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	20000000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	23500000	usd
CY2024Q1	us-gaap	Finite Lived Intangible Assets Remaining Amortization Period1 FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1	P10Y10M24D
CY2023Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1308000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1674000	usd
CY2023Q3	us-gaap	Goodwill Gross GoodwillGross	1026471000	usd
CY2023Q3	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	32200000	usd
CY2023Q3	us-gaap	Goodwill Goodwill	994271000	usd
	azek	Goodwill Disposal Related To Sale Of Business Unit Before Impairment GoodwillDisposalRelatedToSaleOfBusinessUnitBeforeImpairment	58655000	usd
	azek	Goodwill Written Off Related To Sale Of Business Unit Accumulated Impairment Losses GoodwillWrittenOffRelatedToSaleOfBusinessUnitAccumulatedImpairmentLosses	32200000	usd
	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	26455000	usd
CY2024Q1	us-gaap	Goodwill Gross GoodwillGross	967816000	usd
CY2024Q1	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	0	usd
CY2023Q3	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	0	usd
CY2024Q1	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	687067000	usd
CY2024Q1	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	513335000	usd
CY2024Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	173732000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	720068000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	520571000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	199497000	usd
CY2024Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	9900000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	20000000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	23500000	usd
CY2024Q1	us-gaap	Finite Lived Intangible Assets Remaining Amortization Period1 FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1	P10Y10M24D
CY2023Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1308000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1674000	usd
CY2023Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1773000	usd
CY2024Q1	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-60000	usd
CY2023Q1	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	234000	usd
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	511000	usd
CY2024Q1	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	0	usd
CY2023Q1	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	101000	usd
	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	0	usd
	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	101000	usd
CY2024Q1	azek	Allowance For Doubtful Accounts Divestiture AllowanceForDoubtfulAccountsDivestiture	0	usd
CY2023Q1	azek	Allowance For Doubtful Accounts Divestiture AllowanceForDoubtfulAccountsDivestiture	0	usd
	azek	Allowance For Doubtful Accounts Divestiture AllowanceForDoubtfulAccountsDivestiture	32000	usd
	azek	Allowance For Doubtful Accounts Divestiture AllowanceForDoubtfulAccountsDivestiture	0	usd
CY2023Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1308000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1674000	usd
CY2023Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1773000	usd
CY2022Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1397000	usd
CY2024Q1	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-60000	usd
CY2023Q1	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	234000	usd
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	511000	usd
CY2024Q1	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	0	usd
	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	0	usd
	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	101000	usd
CY2024Q1	azek	Allowance For Doubtful Accounts Divestiture AllowanceForDoubtfulAccountsDivestiture	0	usd
CY2023Q1	azek	Allowance For Doubtful Accounts Divestiture AllowanceForDoubtfulAccountsDivestiture	0	usd
	azek	Allowance For Doubtful Accounts Divestiture AllowanceForDoubtfulAccountsDivestiture	0	usd
CY2024Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1248000	usd
CY2023Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1807000	usd
CY2024Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1248000	usd
CY2023Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1807000	usd
CY2024Q1	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	33747000	usd
CY2023Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	34313000	usd
CY2024Q1	us-gaap	Accrued Marketing Costs Current AccruedMarketingCostsCurrent	7620000	usd
CY2023Q3	us-gaap	Accrued Marketing Costs Current AccruedMarketingCostsCurrent	3868000	usd
CY2024Q1	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	5174000	usd
CY2023Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	4152000	usd
CY2024Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	4441000	usd
CY2024Q1	us-gaap	Taxes Payable Current TaxesPayableCurrent	4110000	usd
CY2023Q3	us-gaap	Taxes Payable Current TaxesPayableCurrent	1433000	usd
CY2024Q1	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	3699000	usd
CY2023Q3	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	3556000	usd
CY2023Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	2777000	usd
CY2024Q1	azek	Accrued Freight Payable Current AccruedFreightPayableCurrent	2818000	usd
CY2024Q1	us-gaap	Accrued Utilities Current AccruedUtilitiesCurrent	2401000	usd
CY2023Q3	us-gaap	Accrued Utilities Current AccruedUtilitiesCurrent	2141000	usd
CY2024Q1	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	2091000	usd
CY2023Q3	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	2073000	usd
CY2023Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1773000	usd
CY2022Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1397000	usd
CY2024Q1	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-60000	usd
CY2023Q1	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	234000	usd
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-493000	usd
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	511000	usd
CY2024Q1	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	0	usd
CY2023Q1	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	101000	usd
	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	0	usd
	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	101000	usd
CY2024Q1	azek	Allowance For Doubtful Accounts Divestiture AllowanceForDoubtfulAccountsDivestiture	0	usd
CY2023Q1	azek	Allowance For Doubtful Accounts Divestiture AllowanceForDoubtfulAccountsDivestiture	0	usd
	azek	Allowance For Doubtful Accounts Divestiture AllowanceForDoubtfulAccountsDivestiture	32000	usd
	azek	Allowance For Doubtful Accounts Divestiture AllowanceForDoubtfulAccountsDivestiture	0	usd
CY2024Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1248000	usd
CY2024Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1248000	usd
CY2023Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1807000	usd
CY2024Q1	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	33747000	usd
CY2023Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	34313000	usd
CY2023Q3	us-gaap	Accrued Marketing Costs Current AccruedMarketingCostsCurrent	3868000	usd
CY2024Q1	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	5174000	usd
CY2023Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	4152000	usd
CY2024Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	4441000	usd
CY2023Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	4180000	usd
CY2024Q1	us-gaap	Taxes Payable Current TaxesPayableCurrent	4110000	usd
CY2023Q3	us-gaap	Taxes Payable Current TaxesPayableCurrent	1433000	usd
CY2024Q1	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	3699000	usd
CY2023Q3	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	3556000	usd
CY2024Q1	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	2883000	usd
CY2023Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	2777000	usd
CY2024Q1	azek	Accrued Freight Payable Current AccruedFreightPayableCurrent	2818000	usd
CY2023Q3	azek	Accrued Freight Payable Current AccruedFreightPayableCurrent	1242000	usd
CY2024Q1	us-gaap	Accrued Utilities Current AccruedUtilitiesCurrent	2401000	usd
CY2023Q3	us-gaap	Accrued Utilities Current AccruedUtilitiesCurrent	2141000	usd
CY2024Q1	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	2091000	usd
CY2023Q3	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	2073000	usd
CY2024Q1	azek	Accrued Construction In Progress Liability Current AccruedConstructionInProgressLiabilityCurrent	1476000	usd
CY2023Q3	azek	Accrued Construction In Progress Liability Current AccruedConstructionInProgressLiabilityCurrent	2863000	usd
CY2024Q1	us-gaap	Accrued Sales Commission Current AccruedSalesCommissionCurrent	1151000	usd
CY2023Q3	us-gaap	Accrued Sales Commission Current AccruedSalesCommissionCurrent	991000	usd
CY2024Q1	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	3246000	usd
CY2023Q3	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	3138000	usd
CY2024Q1	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	74857000	usd
CY2023Q3	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	66727000	usd
CY2024Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1248000	usd
CY2023Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1807000	usd
CY2024Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1248000	usd
CY2023Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1807000	usd
CY2024Q1	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	33747000	usd
CY2023Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	34313000	usd
CY2024Q1	us-gaap	Accrued Marketing Costs Current AccruedMarketingCostsCurrent	7620000	usd
CY2023Q3	us-gaap	Accrued Marketing Costs Current AccruedMarketingCostsCurrent	3868000	usd
CY2024Q1	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	5174000	usd
CY2023Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	4152000	usd
CY2024Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	4441000	usd
CY2023Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	4180000	usd
CY2024Q1	us-gaap	Taxes Payable Current TaxesPayableCurrent	4110000	usd
CY2023Q3	us-gaap	Taxes Payable Current TaxesPayableCurrent	1433000	usd
CY2024Q1	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	3699000	usd
CY2023Q3	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	3556000	usd
CY2024Q1	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	2883000	usd
CY2023Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	2777000	usd
CY2024Q1	azek	Accrued Freight Payable Current AccruedFreightPayableCurrent	2818000	usd
CY2023Q3	azek	Accrued Freight Payable Current AccruedFreightPayableCurrent	1242000	usd
CY2024Q1	us-gaap	Accrued Utilities Current AccruedUtilitiesCurrent	2401000	usd
CY2023Q3	us-gaap	Accrued Utilities Current AccruedUtilitiesCurrent	2141000	usd
CY2024Q1	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	2091000	usd
CY2023Q3	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	2073000	usd
CY2024Q1	azek	Accrued Construction In Progress Liability Current AccruedConstructionInProgressLiabilityCurrent	1476000	usd
CY2023Q3	azek	Accrued Construction In Progress Liability Current AccruedConstructionInProgressLiabilityCurrent	2863000	usd
CY2024Q1	us-gaap	Accrued Sales Commission Current AccruedSalesCommissionCurrent	1151000	usd
CY2023Q3	us-gaap	Accrued Sales Commission Current AccruedSalesCommissionCurrent	991000	usd
CY2024Q1	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	3246000	usd
CY2023Q3	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	3138000	usd
CY2024Q1	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	74857000	usd
CY2023Q3	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	66727000	usd
CY2024Q1	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	591000000	usd
CY2023Q3	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	594000000	usd
CY2024Q1	azek	Accrued Construction In Progress Liability Current AccruedConstructionInProgressLiabilityCurrent	1476000	usd
CY2023Q3	azek	Accrued Construction In Progress Liability Current AccruedConstructionInProgressLiabilityCurrent	2863000	usd
CY2024Q1	us-gaap	Accrued Sales Commission Current AccruedSalesCommissionCurrent	1151000	usd
CY2023Q3	us-gaap	Accrued Sales Commission Current AccruedSalesCommissionCurrent	991000	usd
CY2024Q1	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	3246000	usd
CY2023Q3	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	3138000	usd
CY2024Q1	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	74857000	usd
CY2024Q1	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	591000000	usd
CY2023Q3	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	594000000	usd
CY2024Q1	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	3639000	usd
CY2023Q3	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	3996000	usd
CY2024Q1	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	3404000	usd
CY2023Q3	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	3739000	usd
CY2024Q1	us-gaap	Long Term Debt Current LongTermDebtCurrent	6000000	usd
CY2023Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	6000000	usd
CY2024Q1	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	577957000	usd
CY2023Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	580265000	usd
	azek	Line Of Credit Facility Commitment Fee Percentage Average Daily Used Percentage Over50 LineOfCreditFacilityCommitmentFeePercentageAverageDailyUsedPercentageOver50	0.0025
	azek	Line Of Credit Facility Commitment Fee Percentage Average Daily Used Percentage Less Than Or Equal To50 LineOfCreditFacilityCommitmentFeePercentageAverageDailyUsedPercentageLessThanOrEqualTo50	0.00375
	azek	Line Of Credit Covenant Mandatory Prepayment Base Rate Amount Used In Calculation LineOfCreditCovenantMandatoryPrepaymentBaseRateAmountUsedInCalculation	12500000	usd
	azek	Line Of Credit Covenant Mandatory Prepayment Percentage Used In Determination Of Threshold LineOfCreditCovenantMandatoryPrepaymentPercentageUsedInDeterminationOfThreshold	0.10
	azek	Line Of Credit Facility Debt Covenant Trigger Percentage LineOfCreditFacilityDebtCovenantTriggerPercentage	0.10
	azek	Line Of Credit Facility Debt Covenant Trigger Available Amount LineOfCreditFacilityDebtCovenantTriggerAvailableAmount	12500000	usd
CY2023Q1	us-gaap	Interest Expense Other InterestExpenseOther	1107000	usd
	us-gaap	Interest Expense Other InterestExpenseOther	2212000	usd
CY2024Q1	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	776000	usd
CY2023Q1	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	1596000	usd
	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	1857000	usd
	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	2885000	usd
CY2024Q1	us-gaap	Interest Expense InterestExpense	12170000	usd
CY2023Q1	us-gaap	Interest Expense InterestExpense	10774000	usd
	us-gaap	Interest Expense InterestExpense	24139000	usd
CY2024Q1	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	591000000	usd
CY2023Q3	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	594000000	usd
CY2024Q1	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	3639000	usd
CY2023Q3	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	3996000	usd
CY2024Q1	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	3404000	usd
CY2023Q3	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	3739000	usd
CY2024Q1	us-gaap	Long Term Debt Current LongTermDebtCurrent	6000000	usd
CY2023Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	6000000	usd
CY2024Q1	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	577957000	usd
CY2023Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	580265000	usd
	azek	Line Of Credit Facility Commitment Fee Percentage Average Daily Used Percentage Over50 LineOfCreditFacilityCommitmentFeePercentageAverageDailyUsedPercentageOver50	0.0025
	azek	Line Of Credit Facility Commitment Fee Percentage Average Daily Used Percentage Less Than Or Equal To50 LineOfCreditFacilityCommitmentFeePercentageAverageDailyUsedPercentageLessThanOrEqualTo50	0.00375
	azek	Line Of Credit Covenant Mandatory Prepayment Base Rate Amount Used In Calculation LineOfCreditCovenantMandatoryPrepaymentBaseRateAmountUsedInCalculation	12500000	usd
	azek	Line Of Credit Covenant Mandatory Prepayment Percentage Used In Determination Of Threshold LineOfCreditCovenantMandatoryPrepaymentPercentageUsedInDeterminationOfThreshold	0.10
	azek	Line Of Credit Facility Debt Covenant Trigger Percentage LineOfCreditFacilityDebtCovenantTriggerPercentage	0.10
	azek	Line Of Credit Facility Debt Covenant Trigger Available Amount LineOfCreditFacilityDebtCovenantTriggerAvailableAmount	12500000	usd
CY2024Q1	us-gaap	Interest Expense Other InterestExpenseOther	1184000	usd
CY2023Q1	us-gaap	Interest Expense Other InterestExpenseOther	1107000	usd
	us-gaap	Interest Expense Other InterestExpenseOther	2312000	usd
	us-gaap	Interest Expense Other InterestExpenseOther	2212000	usd
CY2024Q1	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	776000	usd
CY2023Q1	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	1596000	usd
	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	1857000	usd
	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	2885000	usd
CY2024Q1	us-gaap	Interest Expense InterestExpense	12170000	usd
	us-gaap	Interest Expense InterestExpense	24139000	usd
CY2024Q1	us-gaap	Interest Income Operating InterestIncomeOperating	3490000	usd
CY2023Q1	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
CY2024Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-8680000	usd
CY2023Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-10774000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-16590000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-20073000	usd
CY2024Q1	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	3639000	usd
CY2023Q3	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	3996000	usd
CY2024Q1	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	3404000	usd
CY2023Q3	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	3739000	usd
CY2024Q1	us-gaap	Long Term Debt Current LongTermDebtCurrent	6000000	usd
CY2024Q1	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	577957000	usd
CY2023Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	580265000	usd
	azek	Line Of Credit Facility Commitment Fee Percentage Average Daily Used Percentage Over50 LineOfCreditFacilityCommitmentFeePercentageAverageDailyUsedPercentageOver50	0.0025
	azek	Line Of Credit Facility Commitment Fee Percentage Average Daily Used Percentage Less Than Or Equal To50 LineOfCreditFacilityCommitmentFeePercentageAverageDailyUsedPercentageLessThanOrEqualTo50	0.00375
	azek	Line Of Credit Covenant Mandatory Prepayment Base Rate Amount Used In Calculation LineOfCreditCovenantMandatoryPrepaymentBaseRateAmountUsedInCalculation	12500000	usd
	azek	Line Of Credit Covenant Mandatory Prepayment Percentage Used In Determination Of Threshold LineOfCreditCovenantMandatoryPrepaymentPercentageUsedInDeterminationOfThreshold	0.10
	azek	Line Of Credit Facility Debt Covenant Trigger Percentage LineOfCreditFacilityDebtCovenantTriggerPercentage	0.10
	azek	Line Of Credit Facility Debt Covenant Trigger Available Amount LineOfCreditFacilityDebtCovenantTriggerAvailableAmount	12500000	usd
CY2024Q1	us-gaap	Interest Expense Other InterestExpenseOther	1184000	usd
CY2023Q1	us-gaap	Interest Expense Other InterestExpenseOther	1107000	usd
	us-gaap	Interest Expense Other InterestExpenseOther	2312000	usd
	us-gaap	Interest Expense Other InterestExpenseOther	2212000	usd
CY2024Q1	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	776000	usd
CY2023Q1	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	1596000	usd
	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	1857000	usd
	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	2885000	usd
CY2024Q1	us-gaap	Interest Expense InterestExpense	12170000	usd
CY2023Q1	us-gaap	Interest Expense InterestExpense	10774000	usd
	us-gaap	Interest Expense InterestExpense	24139000	usd
	us-gaap	Interest Expense InterestExpense	20073000	usd
CY2024Q1	us-gaap	Interest Income Operating InterestIncomeOperating	3490000	usd
	us-gaap	Interest Income Operating InterestIncomeOperating	7549000	usd
	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
CY2024Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-8680000	usd
CY2023Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-10774000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-16590000	usd
	us-gaap	Interest Expense InterestExpense	20073000	usd
CY2024Q1	us-gaap	Interest Income Operating InterestIncomeOperating	3490000	usd
CY2023Q1	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
	us-gaap	Interest Income Operating InterestIncomeOperating	7549000	usd
	us-gaap	Interest Income Operating InterestIncomeOperating	0	usd
CY2024Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-8680000	usd
CY2023Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-10774000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-16590000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-20073000	usd
CY2022Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15555000	usd
CY2022Q3	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	16145000	usd
CY2024Q1	us-gaap	Standard Product Warranty Accrual Period Increase Decrease StandardProductWarrantyAccrualPeriodIncreaseDecrease	539000	usd
CY2023Q1	us-gaap	Standard Product Warranty Accrual Period Increase Decrease StandardProductWarrantyAccrualPeriodIncreaseDecrease	360000	usd
	us-gaap	Standard Product Warranty Accrual Period Increase Decrease StandardProductWarrantyAccrualPeriodIncreaseDecrease	151000	usd
	us-gaap	Standard Product Warranty Accrual Period Increase Decrease StandardProductWarrantyAccrualPeriodIncreaseDecrease	235000	usd
CY2024Q1	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	756000	usd
CY2023Q1	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	573000	usd
	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	1538000	usd
	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	1038000	usd
CY2023Q1	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15342000	usd
CY2024Q1	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15625000	usd
CY2023Q1	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15342000	usd
CY2023Q1	us-gaap	Standard Product Warranty Accrual Current StandardProductWarrantyAccrualCurrent	3606000	usd
CY2024Q1	us-gaap	Standard Product Warranty Accrual Current StandardProductWarrantyAccrualCurrent	3699000	usd
CY2023Q1	us-gaap	Standard Product Warranty Accrual Current StandardProductWarrantyAccrualCurrent	3606000	usd
CY2024Q1	us-gaap	Standard Product Warranty Accrual Noncurrent StandardProductWarrantyAccrualNoncurrent	11926000	usd
CY2023Q1	us-gaap	Standard Product Warranty Accrual Noncurrent StandardProductWarrantyAccrualNoncurrent	11736000	usd
CY2024Q1	us-gaap	Standard Product Warranty Accrual Noncurrent StandardProductWarrantyAccrualNoncurrent	11926000	usd
CY2023Q1	us-gaap	Standard Product Warranty Accrual Noncurrent StandardProductWarrantyAccrualNoncurrent	11736000	usd
CY2024Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	12947000	usd
CY2023Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	13699000	usd
CY2024Q1	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	74770000	usd
CY2023Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	75718000	usd
CY2024Q1	azek	Lease Liability LeaseLiability	95041000	usd
CY2023Q3	azek	Lease Liability LeaseLiability	96374000	usd
	us-gaap	Lease Cost LeaseCost	7897000	usd
	us-gaap	Lease Cost LeaseCost	7778000	usd
CY2024Q1	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	5328000	usd
CY2024Q1	azek	Lessee Lease Liability To Be Paid Due Year Four LesseeLeaseLiabilityToBePaidDueYearFour	7181000	usd
CY2023Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15842000	usd
CY2022Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15555000	usd
CY2023Q3	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	17012000	usd
CY2022Q3	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	16145000	usd
CY2024Q1	us-gaap	Standard Product Warranty Accrual Period Increase Decrease StandardProductWarrantyAccrualPeriodIncreaseDecrease	539000	usd
CY2023Q1	us-gaap	Standard Product Warranty Accrual Period Increase Decrease StandardProductWarrantyAccrualPeriodIncreaseDecrease	360000	usd
	us-gaap	Standard Product Warranty Accrual Period Increase Decrease StandardProductWarrantyAccrualPeriodIncreaseDecrease	151000	usd
CY2024Q1	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	756000	usd
CY2023Q1	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	573000	usd
	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	1538000	usd
	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	1038000	usd
CY2024Q1	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15625000	usd
CY2023Q1	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15342000	usd
CY2024Q1	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15625000	usd
CY2024Q1	us-gaap	Standard Product Warranty Accrual Current StandardProductWarrantyAccrualCurrent	3699000	usd
CY2023Q1	us-gaap	Standard Product Warranty Accrual Current StandardProductWarrantyAccrualCurrent	3606000	usd
CY2024Q1	us-gaap	Standard Product Warranty Accrual Current StandardProductWarrantyAccrualCurrent	3699000	usd
CY2024Q1	us-gaap	Standard Product Warranty Accrual Noncurrent StandardProductWarrantyAccrualNoncurrent	11926000	usd
CY2023Q1	us-gaap	Standard Product Warranty Accrual Noncurrent StandardProductWarrantyAccrualNoncurrent	11736000	usd
CY2024Q1	us-gaap	Standard Product Warranty Accrual Noncurrent StandardProductWarrantyAccrualNoncurrent	11926000	usd
CY2023Q1	us-gaap	Standard Product Warranty Accrual Noncurrent StandardProductWarrantyAccrualNoncurrent	11736000	usd
CY2023Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15842000	usd
CY2022Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15555000	usd
CY2023Q3	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	17012000	usd
CY2022Q3	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	16145000	usd
CY2024Q1	us-gaap	Standard Product Warranty Accrual Period Increase Decrease StandardProductWarrantyAccrualPeriodIncreaseDecrease	539000	usd
CY2023Q1	us-gaap	Standard Product Warranty Accrual Period Increase Decrease StandardProductWarrantyAccrualPeriodIncreaseDecrease	360000	usd
	us-gaap	Standard Product Warranty Accrual Period Increase Decrease StandardProductWarrantyAccrualPeriodIncreaseDecrease	151000	usd
	us-gaap	Standard Product Warranty Accrual Period Increase Decrease StandardProductWarrantyAccrualPeriodIncreaseDecrease	235000	usd
CY2024Q1	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	756000	usd
CY2023Q1	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	573000	usd
	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	1538000	usd
	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	1038000	usd
CY2024Q1	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15625000	usd
CY2023Q1	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15342000	usd
CY2024Q1	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15625000	usd
CY2023Q1	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15342000	usd
CY2024Q1	us-gaap	Standard Product Warranty Accrual Current StandardProductWarrantyAccrualCurrent	3699000	usd
CY2023Q1	us-gaap	Standard Product Warranty Accrual Current StandardProductWarrantyAccrualCurrent	3606000	usd
CY2024Q1	us-gaap	Standard Product Warranty Accrual Current StandardProductWarrantyAccrualCurrent	3699000	usd
CY2023Q1	us-gaap	Standard Product Warranty Accrual Current StandardProductWarrantyAccrualCurrent	3606000	usd
CY2024Q1	us-gaap	Standard Product Warranty Accrual Noncurrent StandardProductWarrantyAccrualNoncurrent	11926000	usd
CY2023Q1	us-gaap	Standard Product Warranty Accrual Noncurrent StandardProductWarrantyAccrualNoncurrent	11736000	usd
CY2024Q1	us-gaap	Standard Product Warranty Accrual Noncurrent StandardProductWarrantyAccrualNoncurrent	11926000	usd
CY2023Q1	us-gaap	Standard Product Warranty Accrual Noncurrent StandardProductWarrantyAccrualNoncurrent	11736000	usd
CY2024Q1	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	69526000	usd
CY2024Q1	azek	Lease Right Of Use Asset LeaseRightOfUseAsset	84544000	usd
CY2023Q3	azek	Lease Right Of Use Asset LeaseRightOfUseAsset	86952000	usd
CY2024Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	4441000	usd
CY2023Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	4180000	usd
CY2024Q1	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	2883000	usd
CY2023Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	2777000	usd
CY2024Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	15018000	usd
CY2023Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	15423000	usd
CY2023Q3	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	71529000	usd
CY2024Q1	azek	Lease Right Of Use Asset LeaseRightOfUseAsset	84544000	usd
CY2023Q3	azek	Lease Right Of Use Asset LeaseRightOfUseAsset	86952000	usd
CY2024Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	4441000	usd
CY2023Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	4180000	usd
CY2024Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	12947000	usd
CY2023Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	13699000	usd
CY2024Q1	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	74770000	usd
CY2023Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	75718000	usd
CY2024Q1	azek	Lease Liability LeaseLiability	95041000	usd
CY2023Q3	azek	Lease Liability LeaseLiability	96374000	usd
CY2024Q1	us-gaap	Operating Lease Cost OperatingLeaseCost	1396000	usd
CY2023Q1	us-gaap	Operating Lease Cost OperatingLeaseCost	1503000	usd
	us-gaap	Operating Lease Cost OperatingLeaseCost	2874000	usd
	us-gaap	Operating Lease Cost OperatingLeaseCost	3004000	usd
CY2024Q1	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1282000	usd
	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	2521000	usd
CY2024Q1	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	1100000	usd
CY2023Q1	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	1103000	usd
	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	2206000	usd
	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	2195000	usd
CY2024Q1	us-gaap	Short Term Lease Cost ShortTermLeaseCost	180000	usd
CY2023Q1	us-gaap	Short Term Lease Cost ShortTermLeaseCost	99000	usd
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	267000	usd
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	201000	usd
CY2024Q1	us-gaap	Sublease Income SubleaseIncome	5000	usd
CY2023Q1	us-gaap	Sublease Income SubleaseIncome	72000	usd
	us-gaap	Sublease Income SubleaseIncome	33000	usd
	us-gaap	Sublease Income SubleaseIncome	143000	usd
CY2024Q1	us-gaap	Lease Cost LeaseCost	3953000	usd
CY2023Q1	us-gaap	Lease Cost LeaseCost	3905000	usd
CY2023Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	15423000	usd
CY2024Q1	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	69526000	usd
CY2023Q3	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	71529000	usd
CY2024Q1	azek	Lease Right Of Use Asset LeaseRightOfUseAsset	84544000	usd
CY2024Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	4441000	usd
CY2023Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	4180000	usd
CY2023Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	2777000	usd
CY2024Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	12947000	usd
CY2023Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	13699000	usd
CY2024Q1	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	74770000	usd
CY2023Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	75718000	usd
CY2024Q1	azek	Lease Liability LeaseLiability	95041000	usd
CY2023Q3	azek	Lease Liability LeaseLiability	96374000	usd
CY2024Q1	us-gaap	Operating Lease Cost OperatingLeaseCost	1396000	usd
	us-gaap	Operating Lease Cost OperatingLeaseCost	2874000	usd
	us-gaap	Operating Lease Cost OperatingLeaseCost	3004000	usd
CY2024Q1	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1282000	usd
	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	2583000	usd
CY2024Q1	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	1100000	usd
	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	2206000	usd
	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	2195000	usd
CY2024Q1	us-gaap	Short Term Lease Cost ShortTermLeaseCost	180000	usd
CY2023Q1	us-gaap	Short Term Lease Cost ShortTermLeaseCost	99000	usd
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	267000	usd
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	201000	usd
CY2024Q1	us-gaap	Sublease Income SubleaseIncome	5000	usd
CY2023Q1	us-gaap	Sublease Income SubleaseIncome	72000	usd
	us-gaap	Sublease Income SubleaseIncome	33000	usd
	us-gaap	Sublease Income SubleaseIncome	143000	usd
CY2023Q1	us-gaap	Lease Cost LeaseCost	3905000	usd
	us-gaap	Lease Cost LeaseCost	7897000	usd
	us-gaap	Lease Cost LeaseCost	7778000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	2658000	usd
CY2024Q1	us-gaap	Finance Lease Liability Payments Remainder Of Fiscal Year FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear	3586000	usd
CY2024Q1	us-gaap	Operating Lease Cost OperatingLeaseCost	1396000	usd
CY2023Q1	us-gaap	Operating Lease Cost OperatingLeaseCost	1503000	usd
	us-gaap	Operating Lease Cost OperatingLeaseCost	2874000	usd
	us-gaap	Operating Lease Cost OperatingLeaseCost	3004000	usd
CY2024Q1	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1282000	usd
CY2023Q1	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1272000	usd
	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	2583000	usd
CY2024Q1	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	1100000	usd
CY2023Q1	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	1103000	usd
	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	2206000	usd
	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	2195000	usd
CY2024Q1	us-gaap	Short Term Lease Cost ShortTermLeaseCost	180000	usd
CY2023Q1	us-gaap	Short Term Lease Cost ShortTermLeaseCost	99000	usd
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	267000	usd
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	201000	usd
CY2024Q1	us-gaap	Sublease Income SubleaseIncome	5000	usd
CY2023Q1	us-gaap	Sublease Income SubleaseIncome	72000	usd
	us-gaap	Sublease Income SubleaseIncome	33000	usd
	us-gaap	Sublease Income SubleaseIncome	143000	usd
	us-gaap	Lease Cost LeaseCost	7897000	usd
	us-gaap	Lease Cost LeaseCost	7778000	usd
CY2024Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y4M24D
CY2023Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y9M18D
CY2024Q1	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P25Y2M12D
CY2023Q3	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P25Y4M24D
CY2024Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.048
CY2023Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.044
CY2024Q1	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.058
CY2023Q3	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.058
CY2024Q1	azek	Lessee Lease Liability To Be Paid Due Remainder Of Fiscal Year LesseeLeaseLiabilityToBePaidDueRemainderOfFiscalYear	6244000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	4781000	usd
CY2024Q1	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	7158000	usd
CY2024Q1	azek	Lessee Lease Liability To Be Paid Due Year One LesseeLeaseLiabilityToBePaidDueYearOne	11939000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	2860000	usd
CY2024Q1	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	7009000	usd
CY2024Q1	azek	Lessee Lease Liability To Be Paid Due Year Two LesseeLeaseLiabilityToBePaidDueYearTwo	9869000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	2117000	usd
CY2024Q1	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	6549000	usd
CY2024Q1	azek	Lessee Lease Liability To Be Paid Due Year Three LesseeLeaseLiabilityToBePaidDueYearThree	8666000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	1853000	usd
CY2024Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y4M24D
CY2023Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y9M18D
CY2024Q1	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P25Y2M12D
CY2023Q3	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P25Y4M24D
CY2024Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.048
CY2024Q1	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.058
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	2658000	usd
CY2024Q1	us-gaap	Finance Lease Liability Payments Remainder Of Fiscal Year FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear	3586000	usd
CY2024Q1	azek	Lessee Lease Liability To Be Paid Due Remainder Of Fiscal Year LesseeLeaseLiabilityToBePaidDueRemainderOfFiscalYear	6244000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	4781000	usd
CY2024Q1	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	7158000	usd
CY2024Q1	azek	Lessee Lease Liability To Be Paid Due Year One LesseeLeaseLiabilityToBePaidDueYearOne	11939000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	2860000	usd
CY2024Q1	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	7009000	usd
CY2024Q1	azek	Lessee Lease Liability To Be Paid Due Year Two LesseeLeaseLiabilityToBePaidDueYearTwo	9869000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	2117000	usd
CY2024Q1	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	6549000	usd
CY2024Q1	azek	Lessee Lease Liability To Be Paid Due Year Three LesseeLeaseLiabilityToBePaidDueYearThree	8666000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	1853000	usd
CY2024Q1	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	5328000	usd
CY2024Q1	azek	Lessee Lease Liability To Be Paid Due Year Four LesseeLeaseLiabilityToBePaidDueYearFour	7181000	usd
CY2024Q1	azek	Lessee Operating Lease Liability Payments Due After Year Four LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour	6075000	usd
CY2024Q1	azek	Lessee Lease Liability To Be Paid Due After Year Four LesseeLeaseLiabilityToBePaidDueAfterYearFour	123135000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	20344000	usd
CY2024Q1	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	146690000	usd
CY2024Q1	azek	Lessee Lease Liability Payments Due LesseeLeaseLiabilityPaymentsDue	167034000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	2956000	usd
CY2024Q1	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	69037000	usd
CY2024Q1	azek	Lessee Lease Liability Undiscounted Excess Amount LesseeLeaseLiabilityUndiscountedExcessAmount	71993000	usd
CY2024Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	17388000	usd
CY2024Q1	us-gaap	Finance Lease Liability FinanceLeaseLiability	77653000	usd
CY2024Q1	azek	Lessee Lease Liability LesseeLeaseLiability	95041000	usd
CY2023Q4	azek	Accumulated Other Comprehensive Income Loss Before Tax AccumulatedOtherComprehensiveIncomeLossBeforeTax	-1622000	usd
CY2023Q4	azek	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	-405000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1217000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	3229000	usd
CY2024Q1	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax	686000	usd
CY2024Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y4M24D
CY2023Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y9M18D
CY2024Q1	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P25Y2M12D
CY2023Q3	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P25Y4M24D
CY2024Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.048
CY2023Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.044
CY2024Q1	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.058
CY2023Q3	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.058
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	2658000	usd
CY2024Q1	us-gaap	Finance Lease Liability Payments Remainder Of Fiscal Year FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear	3586000	usd
CY2024Q1	azek	Lessee Lease Liability To Be Paid Due Remainder Of Fiscal Year LesseeLeaseLiabilityToBePaidDueRemainderOfFiscalYear	6244000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	4781000	usd
CY2024Q1	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	7158000	usd
CY2024Q1	azek	Lessee Lease Liability To Be Paid Due Year One LesseeLeaseLiabilityToBePaidDueYearOne	11939000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	2860000	usd
CY2024Q1	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	7009000	usd
CY2024Q1	azek	Lessee Lease Liability To Be Paid Due Year Two LesseeLeaseLiabilityToBePaidDueYearTwo	9869000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	2117000	usd
CY2024Q1	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	6549000	usd
CY2024Q1	azek	Lessee Lease Liability To Be Paid Due Year Three LesseeLeaseLiabilityToBePaidDueYearThree	8666000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	1853000	usd
CY2024Q1	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	5328000	usd
CY2024Q1	azek	Lessee Lease Liability To Be Paid Due Year Four LesseeLeaseLiabilityToBePaidDueYearFour	7181000	usd
CY2024Q1	azek	Lessee Operating Lease Liability Payments Due After Year Four LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour	6075000	usd
CY2024Q1	azek	Finance Lease Liability Payments Due After Year Four FinanceLeaseLiabilityPaymentsDueAfterYearFour	117060000	usd
CY2024Q1	azek	Lessee Lease Liability To Be Paid Due After Year Four LesseeLeaseLiabilityToBePaidDueAfterYearFour	123135000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	20344000	usd
CY2024Q1	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	146690000	usd
CY2024Q1	azek	Lessee Lease Liability Payments Due LesseeLeaseLiabilityPaymentsDue	167034000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	2956000	usd
CY2024Q1	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	69037000	usd
CY2024Q1	azek	Lessee Lease Liability Undiscounted Excess Amount LesseeLeaseLiabilityUndiscountedExcessAmount	71993000	usd
CY2024Q1	us-gaap	Finance Lease Liability FinanceLeaseLiability	77653000	usd
CY2024Q1	azek	Lessee Lease Liability LesseeLeaseLiability	95041000	usd
CY2024Q1	azek	Reclassification From Accumulated Other Comprehensive Income Current Period Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodTax	-182000	usd
CY2024Q1	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	504000	usd
CY2024Q1	azek	Lessee Operating Lease Liability Payments Due After Year Four LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour	6075000	usd
CY2024Q1	azek	Finance Lease Liability Payments Due After Year Four FinanceLeaseLiabilityPaymentsDueAfterYearFour	117060000	usd
CY2024Q1	azek	Lessee Lease Liability To Be Paid Due After Year Four LesseeLeaseLiabilityToBePaidDueAfterYearFour	123135000	usd
CY2024Q1	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	146690000	usd
CY2024Q1	azek	Lessee Lease Liability Payments Due LesseeLeaseLiabilityPaymentsDue	167034000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	2956000	usd
CY2024Q1	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	69037000	usd
CY2024Q1	azek	Lessee Lease Liability Undiscounted Excess Amount LesseeLeaseLiabilityUndiscountedExcessAmount	71993000	usd
CY2024Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	17388000	usd
CY2024Q1	us-gaap	Finance Lease Liability FinanceLeaseLiability	77653000	usd
CY2024Q1	azek	Lessee Lease Liability LesseeLeaseLiability	95041000	usd
CY2023Q4	azek	Accumulated Other Comprehensive Income Loss Before Tax AccumulatedOtherComprehensiveIncomeLossBeforeTax	-1622000	usd
CY2023Q4	azek	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	-405000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1217000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	3229000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	817000	usd
CY2024Q1	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax	686000	usd
CY2024Q1	azek	Reclassification From Accumulated Other Comprehensive Income Current Period Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodTax	-182000	usd
CY2024Q1	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	504000	usd
CY2024Q1	azek	Accumulated Other Comprehensive Income Loss Before Tax AccumulatedOtherComprehensiveIncomeLossBeforeTax	921000	usd
CY2024Q1	azek	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	230000	usd
CY2024Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	691000	usd
CY2023Q3	azek	Accumulated Other Comprehensive Income Loss Before Tax AccumulatedOtherComprehensiveIncomeLossBeforeTax	2493000	usd
CY2023Q3	azek	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	615000	usd
CY2023Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	1878000	usd
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	-208000	usd
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	-24000	usd
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-184000	usd
	azek	Reclassification From Accumulated Other Comprehensive Income Current Period Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodTax	-361000	usd
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	1003000	usd
CY2024Q1	azek	Accumulated Other Comprehensive Income Loss Before Tax AccumulatedOtherComprehensiveIncomeLossBeforeTax	921000	usd
CY2024Q1	azek	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	230000	usd
CY2024Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	691000	usd
CY2022Q4	azek	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	-647000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1796000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	-2009000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	-578000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-1431000	usd
CY2023Q1	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax	47000	usd
CY2023Q1	azek	Reclassification From Accumulated Other Comprehensive Income Current Period Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodTax	-12000	usd
CY2023Q1	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	35000	usd
CY2023Q1	azek	Accumulated Other Comprehensive Income Loss Before Tax AccumulatedOtherComprehensiveIncomeLossBeforeTax	-4499000	usd
CY2023Q1	azek	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	-1237000	usd
CY2023Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-3262000	usd
CY2023Q4	azek	Accumulated Other Comprehensive Income Loss Before Tax AccumulatedOtherComprehensiveIncomeLossBeforeTax	-1622000	usd
CY2023Q4	azek	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	-405000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1217000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	3229000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	817000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	2412000	usd
CY2024Q1	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax	686000	usd
CY2024Q1	azek	Reclassification From Accumulated Other Comprehensive Income Current Period Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodTax	-182000	usd
CY2024Q1	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	504000	usd
CY2024Q1	azek	Accumulated Other Comprehensive Income Loss Before Tax AccumulatedOtherComprehensiveIncomeLossBeforeTax	921000	usd
CY2024Q1	azek	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	230000	usd
CY2024Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	691000	usd
CY2023Q3	azek	Accumulated Other Comprehensive Income Loss Before Tax AccumulatedOtherComprehensiveIncomeLossBeforeTax	2493000	usd
CY2023Q3	azek	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	615000	usd
CY2023Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	1878000	usd
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	-208000	usd
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	-24000	usd
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-184000	usd
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax	1364000	usd
	azek	Reclassification From Accumulated Other Comprehensive Income Current Period Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodTax	-361000	usd
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	1003000	usd
CY2024Q1	azek	Accumulated Other Comprehensive Income Loss Before Tax AccumulatedOtherComprehensiveIncomeLossBeforeTax	921000	usd
CY2024Q1	azek	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	230000	usd
CY2024Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	691000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1796000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	-2009000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	-578000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-1431000	usd
CY2023Q1	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax	47000	usd
CY2023Q1	azek	Reclassification From Accumulated Other Comprehensive Income Current Period Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodTax	-12000	usd
CY2023Q1	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	35000	usd
CY2023Q1	azek	Accumulated Other Comprehensive Income Loss Before Tax AccumulatedOtherComprehensiveIncomeLossBeforeTax	-4499000	usd
CY2023Q1	azek	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	-1237000	usd
CY2023Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-3262000	usd
CY2022Q3	azek	Accumulated Other Comprehensive Income Loss Before Tax AccumulatedOtherComprehensiveIncomeLossBeforeTax	0	usd
CY2022Q3	azek	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	0	usd
CY2022Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	0	usd
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	-4553000	usd
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	-1251000	usd
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-3302000	usd
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax	-54000	usd
	azek	Reclassification From Accumulated Other Comprehensive Income Current Period Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodTax	14000	usd
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-40000	usd
CY2023Q1	azek	Accumulated Other Comprehensive Income Loss Before Tax AccumulatedOtherComprehensiveIncomeLossBeforeTax	-4499000	usd
CY2023Q1	azek	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	-1237000	usd
CY2023Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-3262000	usd
CY2024Q1	azek	Accumulated Other Comprehensive Income Loss Before Tax AccumulatedOtherComprehensiveIncomeLossBeforeTax	921000	usd
CY2024Q1	azek	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	230000	usd
CY2024Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	691000	usd
CY2023Q3	azek	Accumulated Other Comprehensive Income Loss Before Tax AccumulatedOtherComprehensiveIncomeLossBeforeTax	2493000	usd
CY2023Q3	azek	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	615000	usd
CY2023Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	1878000	usd
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	-208000	usd
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	-24000	usd
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-184000	usd
	azek	Reclassification From Accumulated Other Comprehensive Income Current Period Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodTax	-361000	usd
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	1003000	usd
CY2024Q1	azek	Accumulated Other Comprehensive Income Loss Before Tax AccumulatedOtherComprehensiveIncomeLossBeforeTax	921000	usd
CY2024Q1	azek	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	230000	usd
CY2024Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	691000	usd
CY2022Q4	azek	Accumulated Other Comprehensive Income Loss Before Tax AccumulatedOtherComprehensiveIncomeLossBeforeTax	-2443000	usd
CY2022Q4	azek	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	-647000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1796000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	-2009000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	-578000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-1431000	usd
CY2023Q1	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax	47000	usd
CY2023Q1	azek	Reclassification From Accumulated Other Comprehensive Income Current Period Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodTax	-12000	usd
CY2023Q1	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	35000	usd
CY2023Q1	azek	Accumulated Other Comprehensive Income Loss Before Tax AccumulatedOtherComprehensiveIncomeLossBeforeTax	-4499000	usd
CY2023Q1	azek	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	-1237000	usd
CY2023Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-3262000	usd
CY2022Q3	azek	Accumulated Other Comprehensive Income Loss Before Tax AccumulatedOtherComprehensiveIncomeLossBeforeTax	0	usd
CY2022Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	0	usd
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	-4553000	usd
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	-1251000	usd
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-3302000	usd
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax	-54000	usd
	azek	Reclassification From Accumulated Other Comprehensive Income Current Period Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodTax	14000	usd
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-40000	usd
CY2023Q1	azek	Accumulated Other Comprehensive Income Loss Before Tax AccumulatedOtherComprehensiveIncomeLossBeforeTax	-4499000	usd
CY2023Q1	azek	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	-1237000	usd
CY2023Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-3262000	usd
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2024Q1	us-gaap	Revenues Revenues	418408000	usd
CY2023Q1	us-gaap	Revenues Revenues	377692000	usd
	us-gaap	Revenues Revenues	658852000	usd
	us-gaap	Revenues Revenues	593951000	usd
CY2024Q1	azek	Adjusted Earnings Before Interest Tax Depreciation And Amortization AdjustedEarningsBeforeInterestTaxDepreciationAndAmortization	113283000	usd
CY2023Q1	azek	Adjusted Earnings Before Interest Tax Depreciation And Amortization AdjustedEarningsBeforeInterestTaxDepreciationAndAmortization	76312000	usd
	azek	Adjusted Earnings Before Interest Tax Depreciation And Amortization AdjustedEarningsBeforeInterestTaxDepreciationAndAmortization	168167000	usd
	azek	Adjusted Earnings Before Interest Tax Depreciation And Amortization AdjustedEarningsBeforeInterestTaxDepreciationAndAmortization	85220000	usd
CY2022Q3	azek	Accumulated Other Comprehensive Income Loss Before Tax AccumulatedOtherComprehensiveIncomeLossBeforeTax	0	usd
CY2022Q3	azek	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	0	usd
CY2022Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	0	usd
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	-4553000	usd
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	-1251000	usd
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-3302000	usd
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax	-54000	usd
	azek	Reclassification From Accumulated Other Comprehensive Income Current Period Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodTax	14000	usd
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-40000	usd
CY2023Q1	azek	Accumulated Other Comprehensive Income Loss Before Tax AccumulatedOtherComprehensiveIncomeLossBeforeTax	-4499000	usd
CY2023Q1	azek	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	-1237000	usd
CY2023Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-3262000	usd
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2024Q1	us-gaap	Revenues Revenues	418408000	usd
	us-gaap	Revenues Revenues	658852000	usd
	us-gaap	Revenues Revenues	593951000	usd
CY2024Q1	azek	Adjusted Earnings Before Interest Tax Depreciation And Amortization AdjustedEarningsBeforeInterestTaxDepreciationAndAmortization	113283000	usd
CY2023Q1	azek	Adjusted Earnings Before Interest Tax Depreciation And Amortization AdjustedEarningsBeforeInterestTaxDepreciationAndAmortization	76312000	usd
	azek	Adjusted Earnings Before Interest Tax Depreciation And Amortization AdjustedEarningsBeforeInterestTaxDepreciationAndAmortization	85220000	usd
CY2023Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	32436000	usd
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	64141000	usd
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	65476000	usd
CY2024Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	6299000	usd
CY2023Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	5626000	usd
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	14767000	usd
CY2024Q1	azek	Acquisition And Divestiture Costs AcquisitionAndDivestitureCosts	156000	usd
CY2023Q1	azek	Acquisition And Divestiture Costs AcquisitionAndDivestitureCosts	1581000	usd
	azek	Acquisition And Divestiture Costs AcquisitionAndDivestitureCosts	648000	usd
	azek	Acquisition And Divestiture Costs AcquisitionAndDivestitureCosts	4535000	usd
CY2024Q1	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	-215000	usd
CY2023Q1	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	usd
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	38300000	usd
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	usd
CY2024Q1	azek	Other Costs Expense OtherCostsExpense	662000	usd
CY2023Q1	azek	Other Costs Expense OtherCostsExpense	255000	usd
	azek	Other Costs Expense OtherCostsExpense	3430000	usd
	azek	Other Costs Expense OtherCostsExpense	469000	usd
CY2024Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-8680000	usd
CY2023Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-10774000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-16590000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-20073000	usd
CY2024Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	65067000	usd
CY2023Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	25640000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	106891000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-14916000	usd
CY2024Q1	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	100000	usd
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2024Q1	us-gaap	Revenues Revenues	418408000	usd
CY2023Q1	us-gaap	Revenues Revenues	377692000	usd
	us-gaap	Revenues Revenues	658852000	usd
	us-gaap	Revenues Revenues	593951000	usd
CY2024Q1	azek	Adjusted Earnings Before Interest Tax Depreciation And Amortization AdjustedEarningsBeforeInterestTaxDepreciationAndAmortization	113283000	usd
CY2023Q1	azek	Adjusted Earnings Before Interest Tax Depreciation And Amortization AdjustedEarningsBeforeInterestTaxDepreciationAndAmortization	76312000	usd
	azek	Adjusted Earnings Before Interest Tax Depreciation And Amortization AdjustedEarningsBeforeInterestTaxDepreciationAndAmortization	168167000	usd
	azek	Adjusted Earnings Before Interest Tax Depreciation And Amortization AdjustedEarningsBeforeInterestTaxDepreciationAndAmortization	85220000	usd
CY2024Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	32204000	usd
CY2023Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	32436000	usd
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	64141000	usd
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	65476000	usd
CY2024Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	6299000	usd
CY2023Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	5626000	usd
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	14767000	usd
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	9583000	usd
CY2024Q1	azek	Acquisition And Divestiture Costs AcquisitionAndDivestitureCosts	156000	usd
CY2023Q1	azek	Acquisition And Divestiture Costs AcquisitionAndDivestitureCosts	1581000	usd
	azek	Acquisition And Divestiture Costs AcquisitionAndDivestitureCosts	648000	usd
	azek	Acquisition And Divestiture Costs AcquisitionAndDivestitureCosts	4535000	usd
CY2024Q1	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	-215000	usd
CY2023Q1	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	usd
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	38300000	usd
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	usd
CY2024Q1	azek	Other Costs Expense OtherCostsExpense	662000	usd
CY2023Q1	azek	Other Costs Expense OtherCostsExpense	255000	usd
	azek	Other Costs Expense OtherCostsExpense	3430000	usd
	azek	Other Costs Expense OtherCostsExpense	469000	usd
CY2024Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-8680000	usd
CY2023Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-10774000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-16590000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-20073000	usd
CY2024Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	65067000	usd
CY2023Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	25640000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	106891000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-14916000	usd
CY2024Q1	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	100000	usd
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	100000	usd
CY2023Q1	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	1400000	usd
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	3900000	usd
CY2024Q1	azek	Business Disposition Divestiture Related Costs BusinessDispositionDivestitureRelatedCosts	100000	usd
CY2023Q1	azek	Business Disposition Divestiture Related Costs BusinessDispositionDivestitureRelatedCosts	200000	usd
	azek	Business Disposition Divestiture Related Costs BusinessDispositionDivestitureRelatedCosts	500000	usd
	azek	Business Disposition Divestiture Related Costs BusinessDispositionDivestitureRelatedCosts	700000	usd
	azek	Costs For Process Improvement CostsForProcessImprovement	2400000	usd
CY2024Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	32204000	usd
CY2023Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	32436000	usd
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	64141000	usd
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	65476000	usd
CY2024Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	6299000	usd
CY2023Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	5626000	usd
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	14767000	usd
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	9583000	usd
CY2024Q1	azek	Acquisition And Divestiture Costs AcquisitionAndDivestitureCosts	156000	usd
CY2023Q1	azek	Acquisition And Divestiture Costs AcquisitionAndDivestitureCosts	1581000	usd
	azek	Acquisition And Divestiture Costs AcquisitionAndDivestitureCosts	648000	usd
	azek	Acquisition And Divestiture Costs AcquisitionAndDivestitureCosts	4535000	usd
CY2024Q1	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	-215000	usd
CY2023Q1	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	usd
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	38300000	usd
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	usd
CY2024Q1	azek	Other Costs Expense OtherCostsExpense	662000	usd
CY2023Q1	azek	Other Costs Expense OtherCostsExpense	255000	usd
	azek	Other Costs Expense OtherCostsExpense	3430000	usd
	azek	Other Costs Expense OtherCostsExpense	469000	usd
CY2024Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-8680000	usd
CY2023Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-10774000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-16590000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-20073000	usd
CY2024Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	65067000	usd
CY2023Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	25640000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	106891000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-14916000	usd
CY2024Q1	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	100000	usd
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	100000	usd
CY2023Q1	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	1400000	usd
CY2024Q1	azek	Business Disposition Divestiture Related Costs BusinessDispositionDivestitureRelatedCosts	100000	usd
CY2023Q1	azek	Business Disposition Divestiture Related Costs BusinessDispositionDivestitureRelatedCosts	200000	usd
	azek	Business Disposition Divestiture Related Costs BusinessDispositionDivestitureRelatedCosts	500000	usd
	azek	Business Disposition Divestiture Related Costs BusinessDispositionDivestitureRelatedCosts	700000	usd
	azek	Costs For Process Improvement CostsForProcessImprovement	2400000	usd
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	us-gaap	Legal Fees LegalFees	300000	usd
	us-gaap	Legal Fees LegalFees	200000	usd
CY2024Q1	azek	Other Miscellaneous Expenses OtherMiscellaneousExpenses	400000	usd
	azek	Other Miscellaneous Expenses OtherMiscellaneousExpenses	400000	usd
CY2023Q1	azek	Other Miscellaneous Expenses OtherMiscellaneousExpenses	100000	usd
	azek	Other Miscellaneous Expenses OtherMiscellaneousExpenses	100000	usd
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	azek	Business Disposition Divestiture Related Costs BusinessDispositionDivestitureRelatedCosts	500000	usd
	azek	Business Disposition Divestiture Related Costs BusinessDispositionDivestitureRelatedCosts	700000	usd
	azek	Costs For Process Improvement CostsForProcessImprovement	2400000	usd
	azek	Costs Of Reduction In Workforce CostsOfReductionInWorkforce	300000	usd
CY2023Q1	azek	Costs Of Reduction In Workforce CostsOfReductionInWorkforce	200000	usd
	azek	Costs Of Reduction In Workforce CostsOfReductionInWorkforce	200000	usd
CY2024Q1	us-gaap	Legal Fees LegalFees	300000	usd
	us-gaap	Legal Fees LegalFees	300000	usd
	us-gaap	Legal Fees LegalFees	200000	usd
CY2024Q1	azek	Other Miscellaneous Expenses OtherMiscellaneousExpenses	400000	usd
	azek	Other Miscellaneous Expenses OtherMiscellaneousExpenses	400000	usd
CY2023Q1	azek	Other Miscellaneous Expenses OtherMiscellaneousExpenses	100000	usd
	azek	Other Miscellaneous Expenses OtherMiscellaneousExpenses	100000	usd
CY2024Q1	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	75700000	usd
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Plan Modification Incremental Compensation Cost ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost	1900000	usd
CY2024Q1	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1300000	usd
CY2023Q1	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1100000	usd
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1800000	usd
CY2024Q1	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	31500000	usd
	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y10M24D
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CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0377
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.4000
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.4000
CY2023Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2022Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0000
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0000
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	148231866	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	150812859	shares
CY2024Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.34
CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.12
	azek	Costs Of Reduction In Workforce CostsOfReductionInWorkforce	300000	usd
CY2023Q1	azek	Costs Of Reduction In Workforce CostsOfReductionInWorkforce	200000	usd
	azek	Costs Of Reduction In Workforce CostsOfReductionInWorkforce	200000	usd
CY2024Q1	us-gaap	Legal Fees LegalFees	300000	usd
	us-gaap	Legal Fees LegalFees	300000	usd
	us-gaap	Legal Fees LegalFees	200000	usd
CY2024Q1	azek	Other Miscellaneous Expenses OtherMiscellaneousExpenses	400000	usd
	azek	Other Miscellaneous Expenses OtherMiscellaneousExpenses	400000	usd
CY2023Q1	azek	Other Miscellaneous Expenses OtherMiscellaneousExpenses	100000	usd
	azek	Other Miscellaneous Expenses OtherMiscellaneousExpenses	100000	usd
CY2024Q1	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	75700000	usd
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Plan Modification Incremental Compensation Cost ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost	1900000	usd
CY2024Q1	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1300000	usd
CY2023Q1	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1100000	usd
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1800000	usd
CY2024Q1	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	31500000	usd
	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y10M24D
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0393
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0377
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.4000
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.4000
CY2023Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2022Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0000
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0000
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	150812859	shares
CY2024Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.34
CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.12
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.51
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.08
CY2024Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.34
CY2023Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.12
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.51
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.08
CY2023Q1	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.289
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.299
CY2024Q1	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	75700000	usd
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Plan Modification Incremental Compensation Cost ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost	1900000	usd
CY2024Q1	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1300000	usd
CY2023Q1	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1100000	usd
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	3000000	usd
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1800000	usd
CY2024Q1	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	31500000	usd
	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y10M24D
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CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0377
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.4000
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.4000
CY2023Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2022Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0000
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0000
	azek	Share Based Compensation Arrangement By Share Based Payment Award Award Performance Period ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPerformancePeriod	P3Y
	azek	Share Based Compensation Arrangement By Share Based Payment Award Award Performance Period ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPerformancePeriod	P3Y
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.51
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CY2024Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.34
CY2023Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.12
	azek	Share Based Compensation Arrangement By Share Based Payment Award Award Performance Period ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPerformancePeriod	P3Y
	azek	Share Based Compensation Arrangement By Share Based Payment Award Award Performance Period ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPerformancePeriod	P3Y
CY2024Q1	us-gaap	Net Income Loss NetIncomeLoss	49758000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	18225000	usd
	us-gaap	Net Income Loss NetIncomeLoss	74906000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-11510000	usd
CY2024Q1	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	49758000	usd
CY2024Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	49758000	usd
CY2023Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	18225000	usd
CY2023Q1	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	18225000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	74906000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	74906000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-11510000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-11510000	usd
CY2024Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	145710663	shares
CY2023Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	150713075	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	146516971	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	150812859	shares
CY2024Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	147738277	shares
CY2023Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	151268535	shares
	azek	Share Based Compensation Arrangement By Share Based Payment Award Award Performance Period ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPerformancePeriod	P3Y
	azek	Share Based Compensation Arrangement By Share Based Payment Award Award Performance Period ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPerformancePeriod	P3Y
CY2024Q1	us-gaap	Net Income Loss NetIncomeLoss	49758000	usd
	us-gaap	Net Income Loss NetIncomeLoss	74906000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-11510000	usd
CY2024Q1	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	49758000	usd
CY2024Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	49758000	usd
CY2023Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	18225000	usd
CY2023Q1	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	18225000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	74906000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	74906000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-11510000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-11510000	usd
CY2024Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	145710663	shares
CY2023Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	150713075	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	146516971	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	150812859	shares
CY2024Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	147738277	shares
CY2023Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	151268535	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	148231866	shares
	us-gaap	Net Income Loss NetIncomeLoss	74906000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-11510000	usd
CY2024Q1	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	49758000	usd
CY2024Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	49758000	usd
CY2023Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	18225000	usd
CY2023Q1	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	18225000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	74906000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	74906000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-11510000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-11510000	usd
CY2024Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	145710663	shares
CY2023Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	150713075	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	146516971	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	150812859	shares
CY2024Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	147738277	shares
CY2023Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	151268535	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	148231866	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	150812859	shares
CY2024Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.34
CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.12
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.51
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CY2024Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.34
CY2023Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.12
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.51
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.08
CY2024Q1	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.235
CY2023Q1	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.289
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.299
CY2024Q1	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.235
CY2023Q1	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.289
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.299
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.228

Files In Submission

Name	View Source	Status
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azek-20240331.xsd	Edgar Link	pending
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$AZEK
AZEK Co Inc. Stock $azek

2024 Q1 Form 10-Q Financial Statement

#000162828024028198 Filed on June 14, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AZEK AZEK Co Inc. Stock $azek

2024 Q1 Form 10-Q Financial Statement

#000162828024028198 Filed on June 14, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AZEK
AZEK Co Inc. Stock $azek