$APOG
APOGEE ENTERPRISES, INC. Stock $apog

$apog Overview Financials Valuation SEC Filings Company Website

2020 Q1 Form 10-K Financial Statement

#000000684521000010 Filed on April 22, 2021

Income Statement

Concept	2020 Q1	2019 Q1	2019
Revenue	$337.1M	$346.3M	$1.403B
YoY Change	-2.64%	-2.04%	5.77%
Cost Of Revenue	$259.6M	$302.0M	$1.109B
YoY Change	-14.03%	12.76%	11.73%
Gross Profit	$77.48M	$44.28M	$293.6M
YoY Change	74.97%	-48.31%	-11.98%
Gross Profit Margin	22.98%	12.79%	20.93%
Selling, General & Admin	$59.80M	$59.06M	$223.1M
YoY Change	1.26%	2.17%	1.78%
% of Gross Profit	77.19%	133.37%	76.01%
Research & Development			$19.50M
YoY Change			39.29%
% of Gross Profit			6.64%
Depreciation & Amortization	$12.10M	$11.40M	$49.80M
YoY Change	6.14%	-24.0%	-9.2%
% of Gross Profit	15.62%	25.75%	16.96%
Operating Expenses	$61.90M	$59.06M	$242.6M
YoY Change	4.81%	2.17%	4.03%
Operating Profit	$15.58M	-$14.78M	$67.28M
YoY Change	-205.39%	-153.04%	-41.13%
Interest Expense	-$1.500M	-$2.300M	$8.449M
YoY Change	-34.78%	35.29%	53.4%
% of Operating Profit	-9.63%		12.56%
Other Income/Expense, Net		-$100.0K	-$528.0K
YoY Change			-193.29%
Pretax Income	$14.10M	-$17.10M	$58.66M
YoY Change	-182.46%	-165.27%	-46.61%
Income Tax	$2.200M	-$5.062M	$12.97M
% Of Pretax Income	15.6%		22.11%
Net Earnings	$11.96M	-$12.08M	$45.69M
YoY Change	-198.97%	-154.11%	-42.51%
Net Earnings / Revenue	3.55%	-3.49%	3.26%
Basic Earnings Per Share	$0.45	-$0.45	$1.64
Diluted Earnings Per Share	$0.45	-$0.45	$1.63
COMMON SHARES
Basic Shares Outstanding	26.51M shares	27.18M shares	27.80M shares
Diluted Shares Outstanding			28.08M shares

Balance Sheet

Concept	2020 Q1	2019 Q1	2019
SHORT-TERM ASSETS
Cash & Short-Term Investments	$15.00M	$17.10M	$17.10M
YoY Change	-12.28%	-13.56%	-13.64%
Cash & Equivalents	$14.95M	$17.09M	$17.10M
Short-Term Investments
Other Short-Term Assets	$25.50M	$16.45M	$28.60M
YoY Change	55.01%	-6.53%	62.5%
Inventory	$71.09M	$78.34M	$78.30M
Prepaid Expenses		$11.68M
Receivables	$196.8M	$192.8M	$247.9M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$381.9M	$371.9M	$371.9M
YoY Change	2.69%	10.59%	10.59%
LONG-TERM ASSETS
Property, Plant & Equipment	$324.4M	$315.8M	$315.8M
YoY Change	2.71%	3.87%	3.85%
Goodwill	$185.5M	$185.8M
YoY Change	-0.17%	2.69%
Intangibles	$140.2M	$148.2M
YoY Change	-5.43%	-11.42%
Long-Term Investments
YoY Change
Other Assets	$44.10M	$46.38M	$46.40M
YoY Change	-4.92%	37.73%	76.43%
Total Long-Term Assets	$747.1M	$696.3M	$696.3M
YoY Change	7.3%	1.49%	1.5%
TOTAL ASSETS
Total Short-Term Assets	$381.9M	$371.9M	$371.9M
Total Long-Term Assets	$747.1M	$696.3M	$696.3M
Total Assets	$1.129B	$1.068B	$1.068B
YoY Change	5.69%	4.48%	4.49%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$69.06M	$72.22M	$72.20M
YoY Change	-4.38%	5.56%	5.56%
Accrued Expenses	$121.5M	$63.10M	$63.10M
YoY Change	92.55%	32.56%	-3.96%
Deferred Revenue	$32.70M	$21.48M
YoY Change	52.23%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$5.400M	$0.00
YoY Change
Total Short-Term Liabilities	$276.9M	$227.5M	$227.5M
YoY Change	21.69%	9.3%	9.27%
LONG-TERM LIABILITIES
Long-Term Debt	$212.5M	$245.7M	$245.7M
YoY Change	-13.52%	13.83%	13.8%
Other Long-Term Liabilities	$56.86M	$77.18M	$72.20M
YoY Change	-26.33%	9.25%	10.06%
Total Long-Term Liabilities	$269.4M	$322.9M	$317.9M
YoY Change	-16.58%	12.7%	12.93%
TOTAL LIABILITIES
Total Short-Term Liabilities	$276.9M	$227.5M	$227.5M
Total Long-Term Liabilities	$269.4M	$322.9M	$317.9M
Total Liabilities	$546.2M	$550.4M	$571.9M
YoY Change	-0.76%	11.27%	11.92%
SHAREHOLDERS EQUITY
Retained Earnings	$388.0M	$367.6M
YoY Change	5.55%	-1.52%
Common Stock	$8.814M	$9.005M
YoY Change	-2.12%	-4.06%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$516.8M	$496.3M	$496.3M
YoY Change
Total Liabilities & Shareholders Equity	$1.129B	$1.068B	$1.068B
YoY Change	5.69%	4.48%	4.49%

Cashflow Statement

Concept	2020 Q1	2019 Q1	2019
OPERATING ACTIVITIES
Net Income	$11.96M	-$12.08M	$45.69M
YoY Change	-198.97%	-154.11%	-42.51%
Depreciation, Depletion And Amortization	$12.10M	$11.40M	$49.80M
YoY Change	6.14%	-24.0%	-9.2%
Cash From Operating Activities	$53.70M	$25.80M	$96.42M
YoY Change	108.14%	-57.91%	-24.35%
INVESTING ACTIVITIES
Capital Expenditures	-$10.20M	-$26.80M	$60.72M
YoY Change	-61.94%	87.41%	14.14%
Acquisitions			$0.00
YoY Change			-100.0%
Other Investing Activities	$4.700M	$100.0K	$2.209M
YoY Change	4600.0%	-102.7%	-359.58%
Cash From Investing Activities	-$5.600M	-$26.80M	-$53.70M
YoY Change	-79.1%	48.89%	-77.01%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$43.33M
YoY Change			28.66%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-43.60M	-11.10M	-$32.33M
YoY Change	292.79%	-74.42%	-132.87%
NET CHANGE
Cash From Operating Activities	53.70M	25.80M	$96.42M
Cash From Investing Activities	-5.600M	-26.80M	-$53.70M
Cash From Financing Activities	-43.60M	-11.10M	-$32.33M
Net Change In Cash	4.500M	-12.10M	$10.40M
YoY Change	-137.19%	12000.0%	-233.84%
FREE CASH FLOW
Cash From Operating Activities	$53.70M	$25.80M	$96.42M
Capital Expenditures	-$10.20M	-$26.80M	$60.72M
Free Cash Flow	$63.90M	$52.60M	$35.71M
YoY Change	21.48%	-30.42%	-51.92%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0000006845
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P3Y
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-02-27
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--02-27
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	0-6365
CY2021	dei	Entity Registrant Name EntityRegistrantName	APOGEE ENTERPRISES, INC.
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MN
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	41-0919654
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	4400 West 78th Street
CY2021	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 520
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Minneapolis
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	MN
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	55435
CY2021	dei	City Area Code CityAreaCode	952
CY2021	dei	Local Phone Number LocalPhoneNumber	835-1874
CY2021	dei	Security12b Title Security12bTitle	Common Stock, $0.33 1/3 Par Value
CY2021	dei	Trading Symbol TradingSymbol	APOG
CY2021	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	false
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2020Q3	dei	Entity Public Float EntityPublicFloat	560000000	USD
CY2021Q2	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	25781624	shares
CY2021Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	47277000	USD
CY2020Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	14952000	USD
CY2021Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	175917000	USD
CY2020Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	196806000	USD
CY2021Q1	us-gaap	Inventory Net InventoryNet	72823000	USD
CY2020Q1	us-gaap	Inventory Net InventoryNet	71089000	USD
CY2021Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	29497000	USD
CY2020Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	73582000	USD
CY2021Q1	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	25160000	USD
CY2020Q1	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	25481000	USD
CY2021Q1	us-gaap	Assets Current AssetsCurrent	350674000	USD
CY2020Q1	us-gaap	Assets Current AssetsCurrent	381910000	USD
CY2021Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	298443000	USD
CY2020Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	324386000	USD
CY2021Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	58864000	USD
CY2020Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	52892000	USD
CY2021Q1	us-gaap	Goodwill Goodwill	130098000	USD
CY2020Q1	us-gaap	Goodwill Goodwill	185516000	USD
CY2021Q1	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	130053000	USD
CY2020Q1	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	140191000	USD
CY2021Q1	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	46967000	USD
CY2020Q1	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	44096000	USD
CY2021Q1	us-gaap	Assets Assets	1015099000	USD
CY2020Q1	us-gaap	Assets Assets	1128991000	USD
CY2021Q1	us-gaap	Accounts Payable Current AccountsPayableCurrent	76204000	USD
CY2020Q1	us-gaap	Accounts Payable Current AccountsPayableCurrent	69056000	USD
CY2021Q1	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	50125000	USD
CY2020Q1	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	40119000	USD
CY2021Q1	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	22789000	USD
CY2020Q1	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	32696000	USD
CY2021Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	13251000	USD
CY2020Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	11272000	USD
CY2021Q1	us-gaap	Long Term Debt Current LongTermDebtCurrent	2000000	USD
CY2020Q1	us-gaap	Long Term Debt Current LongTermDebtCurrent	5400000	USD
CY2021Q1	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	53183000	USD
CY2020Q1	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	118314000	USD
CY2021Q1	us-gaap	Liabilities Current LiabilitiesCurrent	217552000	USD
CY2020Q1	us-gaap	Liabilities Current LiabilitiesCurrent	276857000	USD
CY2021Q1	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	163000000	USD
CY2020Q1	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	212500000	USD
CY2021Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	48439000	USD
CY2020Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	43163000	USD
CY2021Q1	us-gaap	Self Insurance Reserve Noncurrent SelfInsuranceReserveNoncurrent	24880000	USD
CY2020Q1	us-gaap	Self Insurance Reserve Noncurrent SelfInsuranceReserveNoncurrent	22831000	USD
CY2021Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	68483000	USD
CY2020Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	56862000	USD
CY2021Q1	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q1	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.33
CY2021Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.33
CY2021Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000	shares
CY2020Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000	shares
CY2021Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	25713688	shares
CY2021Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	25713688	shares
CY2020Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	26443166	shares
CY2020Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	26443166	shares
CY2021Q1	us-gaap	Common Stock Value CommonStockValue	8571000	USD
CY2020Q1	us-gaap	Common Stock Value CommonStockValue	8814000	USD
CY2021Q1	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	154958000	USD
CY2020Q1	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	154016000	USD
CY2021Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	357243000	USD
CY2020Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	388010000	USD
CY2021Q1	us-gaap	Common Stock Issued Employee Stock Trust CommonStockIssuedEmployeeStockTrust	186000	USD
CY2020Q1	us-gaap	Common Stock Issued Employee Stock Trust CommonStockIssuedEmployeeStockTrust	685000	USD
CY2021Q1	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	186000	USD
CY2020Q1	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	685000	USD
CY2021Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-28027000	USD
CY2020Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-34062000	USD
CY2021Q1	us-gaap	Stockholders Equity StockholdersEquity	492745000	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	516778000	USD
CY2021Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1015099000	USD
CY2020Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1128991000	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1230774000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1387439000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1402637000	USD
CY2021	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	955084000	USD
CY2020	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1068480000	USD
CY2019	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1109072000	USD
CY2021	us-gaap	Gross Profit GrossProfit	275690000	USD
CY2020	us-gaap	Gross Profit GrossProfit	318959000	USD
CY2019	us-gaap	Gross Profit GrossProfit	293565000	USD
CY2021	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	180094000	USD
CY2020	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	231111000	USD
CY2019	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	223140000	USD
CY2021	apog	Goodwill Intang Impairment Loss GoodwillIntangImpairmentLoss	-70069000	USD
CY2020	apog	Goodwill Intang Impairment Loss GoodwillIntangImpairmentLoss	0	USD
CY2019	apog	Goodwill Intang Impairment Loss GoodwillIntangImpairmentLoss	-3141000	USD
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	25527000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	87848000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	67284000	USD
CY2021	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-4408000	USD
CY2020	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-8814000	USD
CY2019	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-8094000	USD
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1492000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	716000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-528000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	22611000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	79750000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	58662000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7175000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	17836000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12968000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	15436000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	61914000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	45694000	USD
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.59
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.34
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.64
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.59
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.32
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.63
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	25955000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	26474000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	27802000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	26304000	shares
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CY2021	us-gaap	Net Income Loss NetIncomeLoss	15436000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	61914000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	45694000	USD
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CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	67000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	17000	USD
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	80000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	257000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	64000	USD
CY2021	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	450000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-129000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-172000	USD
CY2021	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	1475000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-423000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-565000	USD
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	32000	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-124000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	72000	USD
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	105000	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-405000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	229000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	4375000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-1364000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-7065000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	6035000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1935000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-7337000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	21471000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	59979000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	38357000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	15436000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	61914000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	45694000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	51440000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	46795000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	49798000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	8573000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	6607000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	6286000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-6460000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	10463000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-5506000	USD
CY2021	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	18644000	USD
CY2020	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	2197000	USD
CY2019	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	2475000	USD
CY2021	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	70069000	USD
CY2020	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	USD
CY2019	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	3141000	USD
CY2021	apog	Proceedsfromnewmarketstaxcredittransactionnetofdeferredcosts Proceedsfromnewmarketstaxcredittransactionnetofdeferredcosts	0	USD
CY2020	apog	Proceedsfromnewmarketstaxcredittransactionnetofdeferredcosts Proceedsfromnewmarketstaxcredittransactionnetofdeferredcosts	0	USD
CY2019	apog	Proceedsfromnewmarketstaxcredittransactionnetofdeferredcosts Proceedsfromnewmarketstaxcredittransactionnetofdeferredcosts	8850000	USD
CY2021	apog	Operating Lease Right Of Use Asset Amortization OperatingLeaseRightOfUseAssetAmortization	12235000	USD
CY2020	apog	Operating Lease Right Of Use Asset Amortization OperatingLeaseRightOfUseAssetAmortization	12420000	USD
CY2019	apog	Operating Lease Right Of Use Asset Amortization OperatingLeaseRightOfUseAssetAmortization	0	USD
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	2088000	USD
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	1516000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	2179000	USD
CY2021	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-21630000	USD
CY2020	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	4217000	USD
CY2019	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-18164000	USD
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	1440000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-7142000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-5114000	USD
CY2021	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-44183000	USD
CY2020	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	18468000	USD
CY2019	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	48712000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-32591000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-375000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	7600000	USD
CY2021	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-10351000	USD
CY2020	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	11314000	USD
CY2019	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	9026000	USD
CY2021	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	2652000	USD
CY2020	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	-8726000	USD
CY2019	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	3680000	USD
CY2021	apog	Increase Decrease Operating Lease Liabilities IncreaseDecreaseOperatingLeaseLiabilities	11513000	USD
CY2020	apog	Increase Decrease Operating Lease Liabilities IncreaseDecreaseOperatingLeaseLiabilities	10829000	USD
CY2019	apog	Increase Decrease Operating Lease Liabilities IncreaseDecreaseOperatingLeaseLiabilities	0	USD
CY2021	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	1268000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	3065000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	2058000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	141863000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	107262000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	96423000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	26165000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	51428000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	60717000	USD
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	25108000	USD
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	5307000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	12333000	USD
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	3606000	USD
CY2020	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	7012000	USD
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	9213000	USD
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	2657000	USD
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	7768000	USD
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	6110000	USD
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	141000	USD
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	1673000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	2209000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2147000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-47038000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-53696000	USD
CY2021	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	198601000	USD
CY2020	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	229000000	USD
CY2019	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	363000000	USD
CY2021	apog	Proceeds Repayment Of Other Debt ProceedsRepaymentOfOtherDebt	-5400000	USD
CY2020	apog	Proceeds Repayment Of Other Debt ProceedsRepaymentOfOtherDebt	150000000	USD
CY2019	apog	Proceeds Repayment Of Other Debt ProceedsRepaymentOfOtherDebt	0	USD
CY2021	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	246340000	USD
CY2020	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	406500000	USD
CY2019	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	333000000	USD
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	32878000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	25140000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	43326000	USD
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	19601000	USD
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	18714000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	17864000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-32326000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	31840000	USD
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-2258000	USD
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-3160000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-1136000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-107876000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-74514000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-14290000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	10401000	USD
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	485000	USD
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-519000	USD
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	14952000	USD
CY2019Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	29241000	USD
CY2018Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	19359000	USD
CY2021Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	47277000	USD
CY2018Q1	us-gaap	Stockholders Equity StockholdersEquity	511355000	USD
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	14952000	USD
CY2019Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	29241000	USD
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	1101000	USD
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	2169000	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	1703000	USD
CY2018Q1	us-gaap	Shares Outstanding SharesOutstanding	28158000	shares
CY2019	us-gaap	Net Income Loss NetIncomeLoss	45694000	USD
CY2019	us-gaap	Income Tax Effects Allocated Directly To Equity Cumulative Effect Of Change In Accounting Principle IncomeTaxEffectsAllocatedDirectlyToEquityCumulativeEffectOfChangeInAccountingPrinciple	2999000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	17000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	64000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-172000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-565000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	72000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	229000	USD
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-7065000	USD
CY2019	us-gaap	Tax Cuts And Jobs Act Of2017 Change In Tax Rate Deferred Tax Asset Income Tax Expense TaxCutsAndJobsActOf2017ChangeInTaxRateDeferredTaxAssetIncomeTaxExpense	0	USD
CY2019	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	135000	shares
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	270000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6286000	USD
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	19000	shares
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	183000	USD
CY2019	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	1258000	shares
CY2019	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	43326000	USD
CY2019	us-gaap	Stock Redeemed Or Called During Period Shares StockRedeemedOrCalledDuringPeriodShares	39000	shares
CY2019	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	1943000	USD
CY2019	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.6475
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	17864000	USD
CY2019Q1	us-gaap	Shares Outstanding SharesOutstanding	27015000	shares
CY2019Q1	us-gaap	Stockholders Equity StockholdersEquity	496317000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	61914000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	67000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	257000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-129000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-423000	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-124000	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-405000	USD
CY2020	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-1364000	USD
CY2020	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	174000	shares
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	158000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6607000	USD
CY2020	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	687000	shares
CY2020	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	25140000	USD
CY2020	us-gaap	Stock Redeemed Or Called During Period Shares StockRedeemedOrCalledDuringPeriodShares	59000	shares
CY2020	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	2429000	USD
CY2020	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.7125
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	18714000	USD
CY2020Q1	us-gaap	Shares Outstanding SharesOutstanding	26443000	shares
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	516778000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	15436000	USD
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	22000	USD
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	80000	USD
CY2021	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	450000	USD
CY2021	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	1475000	USD
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	32000	USD
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	105000	USD
CY2021	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	4375000	USD
CY2021	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	432000	shares
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	107000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8573000	USD
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	127000	shares
CY2021	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1456000	USD
CY2021	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	1177000	shares
CY2021	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	32878000	USD
CY2021	us-gaap	Stock Redeemed Or Called During Period Shares StockRedeemedOrCalledDuringPeriodShares	111000	shares
CY2021	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	3161000	USD
CY2021	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.7625
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	19601000	USD
CY2021Q1	us-gaap	Shares Outstanding SharesOutstanding	25714000	shares
CY2021Q1	us-gaap	Stockholders Equity StockholdersEquity	492745000	USD
CY2021	us-gaap	Fiscal Period FiscalPeriod	Fiscal yearOur fiscal year ends on the Saturday closest to the last day of February, or as determined by the Board of Directors. Fiscal 2021, 2020 and 2019 each consisted of 52 weeks.
CY2021	us-gaap	Use Of Estimates UseOfEstimates	Accounting estimatesThe preparation of the consolidated financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts in the consolidated financial statements and accompanying notes. Actual results could differ significantly from those estimates.
CY2021	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Reclassifications</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Certain reclassifications of amounts previously reported have been made to the accompanying consolidated results of operations to maintain consistency and comparability between periods presented. These reclassifications had no impact on previously reported operating income or net earnings within the consolidated results of operations.</span></div>
CY2021	apog	Number Of Businesses Which Operate Under Long Term Fixed Price Contracts Percent Of Total Revenue NumberOfBusinessesWhichOperateUnderLongTermFixedPriceContractsPercentOfTotalRevenue	0.36
CY2021	apog	Intangible Asset Life Minimum IntangibleAssetLifeMinimum	P18M
CY2021	apog	Intangible Asset Life Maximum IntangibleAssetLifeMaximum	P30Y
CY2021	us-gaap	Guarantees Indemnifications And Warranties Policies GuaranteesIndemnificationsAndWarrantiesPolicies	Warranty and project-related contingenciesWe are subject to claims associated with our products and services, principally as a result of disputes with our customers involving the performance or aesthetics of our architectural products and services. We reserve estimated exposures on known claims, as well as on a portion of anticipated claims for product warranty and rework costs, based on historical product liability claims as a ratio of sales. We also reserve for estimated exposures on other claims as they are known and reasonably estimable. Reserves are included in other current and non-current liabilities based on the estimated timing of dispute resolution.
CY2021	apog	Number Of Businesses Which Operate Under Long Term Fixed Price Contracts NumberOfBusinessesWhichOperateUnderLongTermFixedPriceContracts	3	business
CY2021	apog	Number Of Businesses Which Recognize Revenue Following The Over Time Output Method NumberOfBusinessesWhichRecognizeRevenueFollowingTheOverTimeOutputMethod	1	business
CY2021	apog	Number Of Businesses Which Recognize Revenue Following The Over Time Output Method Percent Of Total Revenue NumberOfBusinessesWhichRecognizeRevenueFollowingTheOverTimeOutputMethodPercentOfTotalRevenue	0.23
CY2021	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	15300000	USD
CY2020	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	16600000	USD
CY2019	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	19500000	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1230774000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1387439000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1402637000	USD
CY2021Q1	us-gaap	Accounts Receivable Gross AccountsReceivableGross	177864000	USD
CY2020Q1	us-gaap	Accounts Receivable Gross AccountsReceivableGross	199275000	USD
CY2021Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1947000	USD
CY2020Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	2469000	USD
CY2021Q1	us-gaap	Accounts Receivable Net AccountsReceivableNet	175917000	USD
CY2020Q1	us-gaap	Accounts Receivable Net AccountsReceivableNet	196806000	USD
CY2020Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	2469000	USD
CY2019Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	4372000	USD
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	389000	USD
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1192000	USD
CY2021	us-gaap	Allowance For Doubtful Accounts Receivable Recoveries AllowanceForDoubtfulAccountsReceivableRecoveries	887000	USD
CY2020	us-gaap	Allowance For Doubtful Accounts Receivable Recoveries AllowanceForDoubtfulAccountsReceivableRecoveries	3085000	USD
CY2021	us-gaap	Allowance For Doubtful Accounts Receivable Period Increase Decrease AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease	-24000	USD
CY2020	us-gaap	Allowance For Doubtful Accounts Receivable Period Increase Decrease AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease	-10000	USD
CY2021Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1947000	USD
CY2020Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	2469000	USD
CY2021Q1	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	74664000	USD
CY2020Q1	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	110923000	USD
CY2021Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	25000000	USD
CY2020Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	35954000	USD
CY2021	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	16341000	USD
CY2020	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	23221000	USD
CY2021	us-gaap	Contract With Customer Performance Obligation Satisfied In Previous Period ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod	19705000	USD
CY2020	us-gaap	Contract With Customer Performance Obligation Satisfied In Previous Period ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod	15641000	USD
CY2021Q1	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	857500000	USD
CY2021Q1	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	472728000	USD
CY2021Q1	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	316847000	USD
CY2021Q1	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	67946000	USD
CY2021Q1	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	857521000	USD
CY2021Q1	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	36681000	USD
CY2020Q1	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	36611000	USD
CY2021Q1	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	18932000	USD
CY2020Q1	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	17520000	USD
CY2021Q1	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	17210000	USD
CY2020Q1	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	16958000	USD
CY2021Q1	us-gaap	Inventory Net InventoryNet	72823000	USD
CY2020Q1	us-gaap	Inventory Net InventoryNet	71089000	USD
CY2021Q1	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	12298000	USD
CY2020Q1	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	12822000	USD
CY2021Q1	apog	Contract Liabilities Current ContractLiabilitiesCurrent	4572000	USD
CY2020Q1	apog	Contract Liabilities Current ContractLiabilitiesCurrent	48962000	USD
CY2021Q1	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	7459000	USD
CY2020Q1	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	5952000	USD
CY2021Q1	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	6482000	USD
CY2020Q1	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	8307000	USD
CY2021Q1	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	22372000	USD
CY2020Q1	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	42271000	USD
CY2021Q1	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	53183000	USD
CY2020Q1	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	118314000	USD
CY2021Q1	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	15717000	USD
CY2021Q1	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	8310000	USD
CY2020Q1	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	7940000	USD
CY2021Q1	apog	Deferred Payroll Taxes Long Term Cares Act DeferredPayrollTaxesLongTermCARESAct	6789000	USD
CY2020Q1	apog	Deferred Payroll Taxes Long Term Cares Act DeferredPayrollTaxesLongTermCARESAct	0	USD
CY2020Q1	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	15717000	USD
CY2021Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	7730000	USD
CY2020Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	8294000	USD
CY2021Q1	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	13507000	USD
CY2020Q1	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	8452000	USD
CY2021Q1	apog	Additional Other Liabilities Noncurrent AdditionalOtherLiabilitiesNoncurrent	16430000	USD
CY2020Q1	apog	Additional Other Liabilities Noncurrent AdditionalOtherLiabilitiesNoncurrent	16459000	USD
CY2021Q1	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	68483000	USD
CY2020Q1	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	56862000	USD
CY2021Q1	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	12517000	USD
CY2021Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	386000	USD
CY2021Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	10000	USD
CY2021Q1	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	12893000	USD
CY2020Q1	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	11692000	USD
CY2020Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	275000	USD
CY2020Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	0	USD
CY2020Q1	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	11967000	USD
CY2021Q1	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	800000	USD
CY2021Q1	us-gaap	Available For Sale Securities Debt Maturities Rolling After Year Ten Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue	829000	USD
CY2021Q1	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	26034000	USD
CY2021Q1	apog	Longterm Investments Municipal And Corporate Bonds LongtermInvestmentsMunicipalAndCorporateBonds	12893000	USD
CY2021Q1	us-gaap	Cash Surrender Value Fair Value Disclosure CashSurrenderValueFairValueDisclosure	18632000	USD
CY2021Q1	apog	Deferred Compensation Liab Fv Disclosure DeferredCompensationLiabFVDisclosure	13507000	USD
CY2020Q1	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	2689000	USD
CY2020Q1	us-gaap	Commercial Paper At Carrying Value CommercialPaperAtCarryingValue	1500000	USD
CY2020Q1	apog	Longterm Investments Municipal And Corporate Bonds LongtermInvestmentsMunicipalAndCorporateBonds	11967000	USD
CY2020Q1	us-gaap	Cash Surrender Value Fair Value Disclosure CashSurrenderValueFairValueDisclosure	16560000	USD
CY2020Q1	apog	Deferred Compensation Liab Fv Disclosure DeferredCompensationLiabFVDisclosure	14042000	USD
CY2021Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	716058000	USD
CY2020Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	711697000	USD
CY2021Q1	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	417615000	USD
CY2020Q1	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	387311000	USD
CY2021Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	298443000	USD
CY2020Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	324386000	USD
CY2021	us-gaap	Depreciation Depreciation	43900000	USD
CY2020	us-gaap	Depreciation Depreciation	36100000	USD
CY2019	us-gaap	Depreciation Depreciation	37100000	USD
CY2020Q3	apog	Proceeds From Sale Leaseback Transaction ProceedsFromSaleLeasebackTransaction	25100000	USD
CY2020Q3	us-gaap	Sale Leaseback Transaction Net Book Value SaleLeasebackTransactionNetBookValue	4300000	USD
CY2021	us-gaap	Sale And Leaseback Transaction Gain Loss Net SaleAndLeasebackTransactionGainLossNet	19300000	USD
CY2021	us-gaap	Restructuring Charges RestructuringCharges	5800000	USD
CY2020Q1	us-gaap	Restructuring Reserve RestructuringReserve	0	USD
CY2021	us-gaap	Restructuring Charges RestructuringCharges	5835000	USD
CY2021	us-gaap	Payments For Restructuring PaymentsForRestructuring	879000	USD
CY2021	us-gaap	Restructuring Reserve Translation And Other Adjustment RestructuringReserveTranslationAndOtherAdjustment	-739000	USD
CY2021Q1	us-gaap	Restructuring Reserve RestructuringReserve	4217000	USD
CY2019Q1	us-gaap	Goodwill Goodwill	185832000	USD
CY2020	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-316000	USD
CY2020Q1	us-gaap	Goodwill Goodwill	185516000	USD
CY2021	us-gaap	Goodwill Translation And Purchase Accounting Adjustments GoodwillTranslationAndPurchaseAccountingAdjustments	6315000	USD
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	63769000	USD
CY2021	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	2036000	USD
CY2021Q1	us-gaap	Goodwill Goodwill	130098000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	160940000	USD
CY2021Q1	apog	Intangible Assets Accumulated Amortization IntangibleAssetsAccumulatedAmortization	74677000	USD
CY2021	us-gaap	Finite Lived Intangible Assets Foreign Currency Translation Gain Loss FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss	-3958000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	90221000	USD
CY2021Q1	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	206240000	USD
CY2021Q1	apog	Intangible Assets Accumulated Amortization IntangibleAssetsAccumulatedAmortization	74677000	USD
CY2021Q1	apog	Intangible Assets Impairment IntangibleAssetsImpairment	6300000	USD
CY2020Q1	apog	Intangible Assets Accumulated Amortization IntangibleAssetsAccumulatedAmortization	65637000	USD
CY2021Q1	apog	Intangible Assets Foreign Currency Translation IntangibleAssetsForeignCurrencyTranslation	-4790000	USD
CY2021Q1	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	130053000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	161308000	USD
CY2020Q1	apog	Intangible Assets Accumulated Amortization IntangibleAssetsAccumulatedAmortization	65637000	USD
CY2020	us-gaap	Finite Lived Intangible Assets Foreign Currency Translation Gain Loss FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss	781000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	94890000	USD
CY2020Q1	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	206729000	USD
CY2020Q1	apog	Intangible Assets Impairment IntangibleAssetsImpairment	0	USD
CY2020Q1	apog	Intangible Assets Foreign Currency Translation IntangibleAssetsForeignCurrencyTranslation	901000	USD
CY2020Q1	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	140191000	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	7600000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	7700000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	12700000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	8055000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	7963000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	7662000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	7316000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	7299000	USD
CY2021Q1	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	216300000	USD
CY2021Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	2000000	USD
CY2021Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	1000000	USD
CY2021Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	0	USD
CY2021Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	150000000	USD
CY2021Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	0	USD
CY2021Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	12000000	USD
CY2021Q1	us-gaap	Long Term Debt LongTermDebt	165000000	USD
CY2021	apog	Debt Instrument Average Daily Borrowings During Year DebtInstrumentAverageDailyBorrowingsDuringYear	187397000	USD
CY2020	apog	Debt Instrument Average Daily Borrowings During Year DebtInstrumentAverageDailyBorrowingsDuringYear	241036000	USD
CY2021	apog	Debt Instrument Maximum Borrowings Outstanding During Year DebtInstrumentMaximumBorrowingsOutstandingDuringYear	235232000	USD
CY2020	apog	Debt Instrument Maximum Borrowings Outstanding During Year DebtInstrumentMaximumBorrowingsOutstandingDuringYear	282000000	USD
CY2021Q1	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.0189
CY2020Q1	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.0291
CY2021	us-gaap	Interest Expense Debt InterestExpenseDebt	4981000	USD
CY2020	us-gaap	Interest Expense Debt InterestExpenseDebt	8891000	USD
CY2019	us-gaap	Interest Expense Debt InterestExpenseDebt	8114000	USD
CY2021	us-gaap	Interest Expense Other InterestExpenseOther	604000	USD
CY2020	us-gaap	Interest Expense Other InterestExpenseOther	326000	USD
CY2019	us-gaap	Interest Expense Other InterestExpenseOther	335000	USD
CY2021	us-gaap	Interest Expense InterestExpense	5585000	USD
CY2020	us-gaap	Interest Expense InterestExpense	9217000	USD
CY2019	us-gaap	Interest Expense InterestExpense	8449000	USD
CY2021	us-gaap	Interest Paid InterestPaid	4600000	USD
CY2020	us-gaap	Interest Paid InterestPaid	9100000	USD
CY2019	us-gaap	Interest Paid InterestPaid	8100000	USD
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	13973000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	13671000	USD
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	1910000	USD
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	2121000	USD
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	2827000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	2969000	USD
CY2021	us-gaap	Lease Cost LeaseCost	18710000	USD
CY2020	us-gaap	Lease Cost LeaseCost	18761000	USD
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	13952000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	13614000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	23772000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	15948000	USD
CY2021Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y
CY2020Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y9M18D
CY2021Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.030
CY2020Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.036
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	13731000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	12249000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	10558000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	9290000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	7464000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	12581000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	65873000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	4183000	USD
CY2021Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	61690000	USD
CY2021Q1	apog	Number Of Manufacturing Facilities That Union Employees Are Covered With401 K Plan NumberOfManufacturingFacilitiesThatUnionEmployeesAreCoveredWith401KPlan	2	Facility
CY2021	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.60
CY2021	apog	Defined Contribution Plan Employer Contribution Amount DefinedContributionPlanEmployerContributionAmount	3500000	USD
CY2020	apog	Defined Contribution Plan Employer Contribution Amount DefinedContributionPlanEmployerContributionAmount	9000000.0	USD
CY2019	apog	Defined Contribution Plan Employer Contribution Amount DefinedContributionPlanEmployerContributionAmount	8000000.0	USD
CY2021Q1	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	18600000	USD
CY2021Q1	apog	Mutual Fund Investments MutualFundInvestments	300000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	14371000	USD
CY2019Q1	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	13310000	USD
CY2021	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	346000	USD
CY2020	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	492000	USD
CY2021	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	175000	USD
CY2020	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-1567000	USD
CY2021	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	1001000	USD
CY2020	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	998000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	13541000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	14371000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	5986000	USD
CY2019Q1	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	5330000	USD
CY2021	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	-88000	USD
CY2020	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	1002000	USD
CY2021	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	654000	USD
CY2020	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	652000	USD
CY2021	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	1001000	USD
CY2020	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	998000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	5551000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	5986000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-7990000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-8385000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-400000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	423000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	591000	USD
CY2021Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	683000	USD
CY2020Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	682000	USD
CY2021Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	7730000	USD
CY2020Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	8294000	USD
CY2021Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	7990000	USD
CY2020Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	8385000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	-5416000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	-5553000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	100000	USD
CY2021	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-260000	USD
CY2021	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	346000	USD
CY2020	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	492000	USD
CY2019	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	506000	USD
CY2021	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	211000	USD
CY2020	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	182000	USD
CY2019	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	40000	USD
CY2020	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-219000	USD
CY2019	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-226000	USD
CY2021	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	395000	USD
CY2020	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	529000	USD
CY2019	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	692000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0260
CY2020Q1	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0380
CY2019Q1	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0380
CY2021	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0250
CY2020	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0250
CY2019	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0385
CY2021	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0450
CY2020	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0450
CY2019	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0450
CY2021	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	700000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	1053000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	1007000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	971000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	935000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	919000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	4136000	USD
CY2021Q1	us-gaap	Guarantees Fair Value Disclosure GuaranteesFairValueDisclosure	1100000000	USD
CY2021Q1	apog	Companies Backlog Related To Sales CompaniesBacklogRelatedToSales	532400000	USD
CY2020Q1	us-gaap	Extended Product Warranty Accrual ExtendedProductWarrantyAccrual	15629000	USD
CY2019Q1	us-gaap	Extended Product Warranty Accrual ExtendedProductWarrantyAccrual	16737000	USD
CY2021	us-gaap	Extended Product Warranty Accrual Warranties Issued ExtendedProductWarrantyAccrualWarrantiesIssued	5758000	USD
CY2020	us-gaap	Extended Product Warranty Accrual Warranties Issued ExtendedProductWarrantyAccrualWarrantiesIssued	8224000	USD
CY2021	us-gaap	Extended Product Warranty Accrual Payments ExtendedProductWarrantyAccrualPayments	6388000	USD
CY2020	us-gaap	Extended Product Warranty Accrual Payments ExtendedProductWarrantyAccrualPayments	9332000	USD
CY2021Q1	us-gaap	Extended Product Warranty Accrual ExtendedProductWarrantyAccrual	14999000	USD
CY2020Q1	us-gaap	Extended Product Warranty Accrual ExtendedProductWarrantyAccrual	15629000	USD
CY2021Q1	apog	Project Related Liability ProjectRelatedLiability	4600000	USD
CY2021Q1	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	200000	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.033
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.400
CY2021	apog	Gross Proceeds From New Markets Tax Credit Transaction GrossProceedsFromNewMarketsTaxCreditTransaction	15800000	USD
CY2021Q1	us-gaap	Deferred Costs Current And Noncurrent DeferredCostsCurrentAndNoncurrent	3500000	USD
CY2021	apog	New Markets Tax Credit Transaction Benefit Net NewMarketsTaxCreditTransactionBenefitNet	12300000	USD
CY2021Q1	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1.00
CY2020Q1	apog	Project Related Liability ProjectRelatedLiability	49000000.0	USD
CY2021	us-gaap	Insurance Recoveries InsuranceRecoveries	15000000.0	USD
CY2021Q1	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	18700000	USD
CY2021Q1	us-gaap	Purchase Obligation PurchaseObligation	253500000	USD
CY2021	apog	Number Of Properties Acquired With Historical Environmental Conditions NumberOfPropertiesAcquiredWithHistoricalEnvironmentalConditions	1	Facility
CY2021Q1	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	302000	USD
CY2020Q1	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	222000	USD
CY2021Q1	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	643000	USD
CY2020Q1	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-832000	USD
CY2021Q1	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	4152000	USD
CY2020Q1	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	4257000	USD
CY2021Q1	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-24820000	USD
CY2020Q1	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-29195000	USD
CY2021Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-28027000	USD
CY2020Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-34062000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	8600000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	6600000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	6300000	USD
CY2021Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	9099932	USD
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.007
CY2021Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice	35.70
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	8.34
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	23.04
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	11.45
CY2021Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	23.04
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P9Y3M18D
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1500000	USD
CY2021Q1	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	3096016	USD
CY2021Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	23.04
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P9Y3M18D
CY2021Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	9099932	USD
CY2021Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	215600	shares
CY2021Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	23.04
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P9Y3M18D
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	200000	USD
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	1800000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	600000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	0	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	0	USD
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	309259	shares
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	40.58
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	387858	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	21.66
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	219081	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	35.51
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	2809	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	34.03
CY2021Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	475227	shares
CY2021Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	27.52
CY2021Q1	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions	7900000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	45651000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	97297000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	60042000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-23040000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-17547000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-1380000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	22611000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	79750000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	58662000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-2860000	USD
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	11495000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	8493000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	22746000	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	702000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2064000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-4437000	USD
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1642000	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	-2720000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	-459000	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	13839000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	7837000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	17850000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	9513000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-12409000	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	538000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	2152000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	6275000	USD
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-4138000	USD
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-1202000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	628000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-6460000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	10463000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-5506000	USD
CY2021	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	-204000	USD
CY2020	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	-464000	USD
CY2019	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	624000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7175000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	17836000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12968000	USD
CY2021Q1	apog	Deferred Tax Assets Liabilities Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost Non Current DeferredTaxAssetsLiabilitiesTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCostNonCurrent	9452000	USD
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	14100000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	17800000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	16500000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.010
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.040
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.027
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.046
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.003
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.008
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	0.056
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	0
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	0
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.053
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.016
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.027
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.036
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.012
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.007
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.003
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.317
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CY2021Q1	apog	Deferred Tax Assets Liabilities Tax Deferred Expense Reserves And Accruals Other Non Current DeferredTaxAssetsLiabilitiesTaxDeferredExpenseReservesAndAccrualsOtherNonCurrent	6309000	USD
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CY2021Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	1483000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	0	USD
CY2021Q1	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	4215000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	0	USD
CY2021Q1	apog	Unrecognized Tax Benefits Non Current UnrecognizedTaxBenefitsNonCurrent	1916000	USD
CY2020Q1	apog	Unrecognized Tax Benefits Non Current UnrecognizedTaxBenefitsNonCurrent	1941000	USD
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CY2020Q1	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	5238000	USD
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CY2020Q1	apog	Deferredtaxassetsoperatingleaseliabilities Deferredtaxassetsoperatingleaseliabilities	6640000	USD
CY2021Q1	apog	Deferred Tax Assets Operating Loss Carryforwards Non Current DeferredTaxAssetsOperatingLossCarryforwardsNonCurrent	9952000	USD
CY2020Q1	apog	Deferred Tax Assets Operating Loss Carryforwards Non Current DeferredTaxAssetsOperatingLossCarryforwardsNonCurrent	11093000	USD
CY2021Q1	apog	Deferred Tax Assets Liabilities Other Non Current DeferredTaxAssetsLiabilitiesOtherNonCurrent	1984000	USD
CY2020Q1	apog	Deferred Tax Assets Liabilities Other Non Current DeferredTaxAssetsLiabilitiesOtherNonCurrent	1502000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	57128000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	50180000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	7435000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	8727000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	49693000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	41453000	USD
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CY2020Q1	us-gaap	Deferred Tax Liabilities Deferred Expense Reserves And Accruals DeferredTaxLiabilitiesDeferredExpenseReservesAndAccruals	0	USD
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CY2020Q1	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	8166000	USD
CY2021Q1	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	34573000	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	32296000	USD
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CY2020Q1	apog	Deferred Tax Liabilities Operating Lease Assets DeferredTaxLiabilitiesOperatingLeaseAssets	6666000	USD
CY2021Q1	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	820000	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	0	USD
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CY2020Q1	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	47128000	USD
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CY2020Q1	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	5675000	USD
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CY2020Q1	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	2600000	USD
CY2019Q1	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	3100000	USD
CY2021Q1	apog	Unrecognized Tax Benefits That Would Result In Adjustments To Deferred Taxes UnrecognizedTaxBenefitsThatWouldResultInAdjustmentsToDeferredTaxes	1600000	USD
CY2020Q1	apog	Unrecognized Tax Benefits That Would Result In Adjustments To Deferred Taxes UnrecognizedTaxBenefitsThatWouldResultInAdjustmentsToDeferredTaxes	1500000	USD
CY2019Q1	apog	Unrecognized Tax Benefits That Would Result In Adjustments To Deferred Taxes UnrecognizedTaxBenefitsThatWouldResultInAdjustmentsToDeferredTaxes	2000000.0	USD
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CY2020Q1	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	300000	USD
CY2019Q1	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	300000	USD
CY2020Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4071000	USD
CY2019Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	5111000	USD
CY2018Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4705000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	106000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	82000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	500000	USD
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CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	1100000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	377000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	429000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	425000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1067000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	96000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	15000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	303000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	404000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	432000	USD
CY2021Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3755000	USD
CY2020Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4071000	USD
CY2019Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	5111000	USD
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	99000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	25955000	shares
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CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	4
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	26474000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	27802000	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	349000	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	255000	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	280000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	26304000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	26729000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	28082000	shares
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	111000	shares
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	25527000	USD
CY2021	us-gaap	Revenues Revenues	1230774000	USD
CY2020	us-gaap	Revenues Revenues	1387439000	USD
CY2019	us-gaap	Revenues Revenues	1402637000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	87848000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	67284000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	51440000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	46795000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	49798000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	26165000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	51428000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	60717000	USD
CY2021Q1	us-gaap	Assets Assets	1015099000	USD
CY2020Q1	us-gaap	Assets Assets	1128991000	USD
CY2019Q1	us-gaap	Assets Assets	1068168000	USD
CY2020	apog	Project Related Charges ProjectRelatedCharges	16700000	USD
CY2019	apog	Project Related Charges ProjectRelatedCharges	40900000	USD
CY2020	us-gaap	Insurance Recoveries InsuranceRecoveries	15000000.0	USD
CY2021	us-gaap	Revenues Revenues	1230774000	USD
CY2020	us-gaap	Revenues Revenues	1387439000	USD
CY2019	us-gaap	Revenues Revenues	1402637000	USD
CY2021Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	298443000	USD
CY2020Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	324386000	USD
CY2019Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	315823000	USD

Files In Submission

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$APOG
APOGEE ENTERPRISES, INC. Stock $apog

2020 Q1 Form 10-K Financial Statement

#000000684521000010 Filed on April 22, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$APOG APOGEE ENTERPRISES, INC. Stock $apog

2020 Q1 Form 10-K Financial Statement

#000000684521000010 Filed on April 22, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$APOG
APOGEE ENTERPRISES, INC. Stock $apog