$APOG
APOGEE ENTERPRISES, INC. Stock $apog

$apog Overview Financials Valuation SEC Filings Company Website

2020 Q1 Form 10-K Financial Statement

#000000684520000008 Filed on April 24, 2020

Income Statement

Concept	2020 Q1	2020	2019 Q4
Revenue	$337.1M	$1.387B	$337.9M
YoY Change	-2.64%	-1.08%	-5.54%
Cost Of Revenue	$259.6M	$1.068B	$263.6M
YoY Change	-14.03%	-3.66%	-3.66%
Gross Profit	$77.48M	$319.0M	$74.31M
YoY Change	74.97%	8.65%	-11.63%
Gross Profit Margin	22.98%	22.99%	21.99%
Selling, General & Admin	$59.80M	$231.1M	$52.72M
YoY Change	1.26%	3.57%	0.06%
% of Gross Profit	77.19%	72.46%	70.94%
Research & Development		$16.60M
YoY Change		-14.87%
% of Gross Profit		5.2%
Depreciation & Amortization	$12.10M	$46.80M	$11.90M
YoY Change	6.14%	-6.03%	0.0%
% of Gross Profit	15.62%	14.67%	16.01%
Operating Expenses	$61.90M	$247.7M	$52.72M
YoY Change	4.81%	2.09%	0.06%
Operating Profit	$15.58M	$87.85M	$21.59M
YoY Change	-205.39%	30.56%	-31.25%
Interest Expense	-$1.500M	$9.217M	$1.995M
YoY Change	-34.78%	9.09%	-28.42%
% of Operating Profit	-9.63%	10.49%	9.24%
Other Income/Expense, Net		$716.0K	$231.0K
YoY Change		-235.61%	-135.27%
Pretax Income	$14.10M	$79.75M	$19.83M
YoY Change	-182.46%	35.95%	-30.72%
Income Tax	$2.200M	$17.84M	$4.596M
% Of Pretax Income	15.6%	22.36%	23.18%
Net Earnings	$11.96M	$61.91M	$15.23M
YoY Change	-198.97%	35.5%	-30.41%
Net Earnings / Revenue	3.55%	4.46%	4.51%
Basic Earnings Per Share	$0.45	$2.34	$0.58
Diluted Earnings Per Share	$0.45	$2.32	$0.57
COMMON SHARES
Basic Shares Outstanding	26.51M shares	26.47M shares	26.43M shares
Diluted Shares Outstanding		26.73M shares	26.75M shares

Balance Sheet

Concept	2020 Q1	2020	2019 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$15.00M	$15.00M	$10.10M
YoY Change	-12.28%	-12.28%	-32.67%
Cash & Equivalents	$14.95M	$15.00M	$10.13M
Short-Term Investments
Other Short-Term Assets	$25.50M	$25.50M	$40.34M
YoY Change	55.01%	-10.84%	148.98%
Inventory	$71.09M	$71.10M	$75.79M
Prepaid Expenses			$11.66M
Receivables	$196.8M	$270.4M	$198.0M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$381.9M	$381.9M	$396.9M
YoY Change	2.69%	2.69%	6.48%
LONG-TERM ASSETS
Property, Plant & Equipment	$324.4M	$377.3M	$326.4M
YoY Change	2.71%	19.47%	8.01%
Goodwill	$185.5M		$185.8M
YoY Change	-0.17%		-0.01%
Intangibles	$140.2M		$142.8M
YoY Change	-5.43%		-7.05%
Long-Term Investments
YoY Change
Other Assets	$44.10M	$44.10M	$41.59M
YoY Change	-4.92%	-4.96%	3.32%
Total Long-Term Assets	$747.1M	$747.1M	$752.9M
YoY Change	7.3%	7.3%	6.31%
TOTAL ASSETS
Total Short-Term Assets	$381.9M	$381.9M	$396.9M
Total Long-Term Assets	$747.1M	$747.1M	$752.9M
Total Assets	$1.129B	$1.129B	$1.150B
YoY Change	5.69%	5.69%	6.37%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$69.06M	$69.10M	$66.56M
YoY Change	-4.38%	-4.29%	-15.83%
Accrued Expenses	$121.5M	$121.5M	$110.2M
YoY Change	92.55%	92.55%	83.06%
Deferred Revenue	$32.70M
YoY Change	52.23%
Short-Term Debt	$0.00	$0.00	$150.0M
YoY Change
Long-Term Debt Due	$5.400M	$5.400M	$155.4M
YoY Change
Total Short-Term Liabilities	$276.9M	$276.9M	$399.5M
YoY Change	21.69%	21.71%	87.89%
LONG-TERM LIABILITIES
Long-Term Debt	$212.5M	$212.5M	$95.86M
YoY Change	-13.52%	-13.51%	-58.81%
Other Long-Term Liabilities	$56.86M	$107.1M	$65.65M
YoY Change	-26.33%	48.34%	-23.14%
Total Long-Term Liabilities	$269.4M	$319.6M	$161.5M
YoY Change	-16.58%	0.53%	-49.23%
TOTAL LIABILITIES
Total Short-Term Liabilities	$276.9M	$276.9M	$399.5M
Total Long-Term Liabilities	$269.4M	$319.6M	$161.5M
Total Liabilities	$546.2M	$612.2M	$561.0M
YoY Change	-0.76%	7.05%	5.7%
SHAREHOLDERS EQUITY
Retained Earnings	$388.0M		$385.0M
YoY Change	5.55%		-3.81%
Common Stock	$8.814M		$8.851M
YoY Change	-2.12%		-3.99%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$516.8M	$516.8M	$515.0M
YoY Change
Total Liabilities & Shareholders Equity	$1.129B	$1.129B	$1.150B
YoY Change	5.69%	5.69%	6.37%

Cashflow Statement

Concept	2020 Q1	2020	2019 Q4
OPERATING ACTIVITIES
Net Income	$11.96M	$61.91M	$15.23M
YoY Change	-198.97%	35.5%	-30.41%
Depreciation, Depletion And Amortization	$12.10M	$46.80M	$11.90M
YoY Change	6.14%	-6.03%	0.0%
Cash From Operating Activities	$53.70M	$107.3M	$35.80M
YoY Change	108.14%	11.24%	57.71%
INVESTING ACTIVITIES
Capital Expenditures	-$10.20M	$51.43M	-$18.60M
YoY Change	-61.94%	-15.3%	91.75%
Acquisitions		$0.00
YoY Change
Other Investing Activities	$4.700M	$1.673M	$200.0K
YoY Change	4600.0%	-24.26%	-98.4%
Cash From Investing Activities	-$5.600M	-$47.04M	-$18.40M
YoY Change	-79.1%	-12.4%	-734.48%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$25.14M
YoY Change		-41.97%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-43.60M	-$74.51M	-26.20M
YoY Change	292.79%	130.51%	31.66%
NET CHANGE
Cash From Operating Activities	53.70M	$107.3M	35.80M
Cash From Investing Activities	-5.600M	-$47.04M	-18.40M
Cash From Financing Activities	-43.60M	-$74.51M	-26.20M
Net Change In Cash	4.500M	-$14.29M	-8.800M
YoY Change	-137.19%	-237.39%	-254.39%
FREE CASH FLOW
Cash From Operating Activities	$53.70M	$107.3M	$35.80M
Capital Expenditures	-$10.20M	$51.43M	-$18.60M
Free Cash Flow	$63.90M	$55.83M	$54.40M
YoY Change	21.48%	56.37%	67.9%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2020	dei	Entity Central Index Key EntityCentralIndexKey	0000006845
CY2018	apog	Fiscal Time Period FiscalTimePeriod	P52W
CY2019	apog	Fiscal Time Period FiscalTimePeriod	P52W
CY2020	apog	Fiscal Time Period FiscalTimePeriod	P52W
CY2020	apog	Intangible Asset Life Maximum IntangibleAssetLifeMaximum	P20Y
CY2020	apog	Intangible Asset Life Minimum IntangibleAssetLifeMinimum	P18M
CY2020	dei	Amendment Flag AmendmentFlag	false
CY2020	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--02-29
CY2020	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2020	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.57
CY2018	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.5775
CY2019	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	0	USD
CY2020	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	0	USD
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0	USD
CY2019	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.6475
CY2020	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.7125
CY2019Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.33
CY2020Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.33
CY2019Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000	shares
CY2020Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000	shares
CY2019Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	27015127	shares
CY2020Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	26443166	shares
CY2019Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	27015127	shares
CY2020Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	26443166	shares
CY2019	us-gaap	Depreciation Depreciation	37100000	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	87000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	72000	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-124000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	47000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-172000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-129000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-29000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	17000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	67000	USD
CY2018	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	0	USD
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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	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	2192451	USD
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P1Y6M0D
CY2019Q1	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	300000	USD
CY2020	dei	Document Type DocumentType	10-K
CY2020	dei	Document Annual Report DocumentAnnualReport	true
CY2020	dei	Document Period End Date DocumentPeriodEndDate	2020-02-29
CY2020	dei	Document Transition Report DocumentTransitionReport	false
CY2020	dei	Entity File Number EntityFileNumber	0-6365
CY2020	dei	Entity Registrant Name EntityRegistrantName	APOGEE ENTERPRISES, INC.
CY2020	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MN
CY2020	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	41-0919654
CY2020	dei	Entity Address Address Line1 EntityAddressAddressLine1	4400 West 78th Street
CY2020	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 520
CY2020	dei	Entity Address City Or Town EntityAddressCityOrTown	Minneapolis
CY2020	dei	Entity Address State Or Province EntityAddressStateOrProvince	MN
CY2020	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	55435
CY2020	dei	City Area Code CityAreaCode	952
CY2020	dei	Local Phone Number LocalPhoneNumber	835-1874
CY2020	dei	Security12b Title Security12bTitle	Common Stock, $0.33 1/3 Par Value
CY2020	dei	Trading Symbol TradingSymbol	APOG
CY2020	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2020	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2020	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2020	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2020	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2020	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2020	dei	Entity Small Business EntitySmallBusiness	false
CY2020	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2020	dei	Entity Shell Company EntityShellCompany	false
CY2019Q3	dei	Entity Public Float EntityPublicFloat	981000000	USD
CY2020Q2	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	26149688	shares
CY2020Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	14952000	USD
CY2019Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	17087000	USD
CY2020Q1	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	0	USD
CY2019Q1	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	12154000	USD
CY2020Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	196806000	USD
CY2019Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	192767000	USD
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CY2019Q1	us-gaap	Inventory Net InventoryNet	78344000	USD
CY2020Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	73582000	USD
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CY2019Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	315823000	USD
CY2020Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	52892000	USD
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CY2019Q1	us-gaap	Goodwill Goodwill	185832000	USD
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CY2019Q1	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
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CY2020Q1	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	32696000	USD
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CY2020Q1	us-gaap	Self Insurance Reserve Noncurrent SelfInsuranceReserveNoncurrent	22831000	USD
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CY2020Q1	us-gaap	Common Stock Issued Employee Stock Trust CommonStockIssuedEmployeeStockTrust	685000	USD
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CY2020	us-gaap	Gross Profit GrossProfit	318959000	USD
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CY2020	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	231111000	USD
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CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	87848000	USD
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CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	109880000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	17836000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	45694000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	79488000	USD
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.34
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.64
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.79
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.32
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.63
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.76
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
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	28534000	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
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	28804000	shares
CY2019	us-gaap	Net Income Loss NetIncomeLoss	45694000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	79488000	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
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-95000	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
CY2018	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	156000	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
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	284000	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
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	6692000	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
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	7037000	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
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	86525000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	61914000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	45694000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	79488000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	46795000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	49798000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	54843000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	6607000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	6286000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	6205000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	10463000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-5506000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	3195000	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
CY2018	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-1037000	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
CY2018	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	USD
CY2020	apog	Proceedsfromnewmarketstaxcredittransactionnetofdeferredcosts Proceedsfromnewmarketstaxcredittransactionnetofdeferredcosts	0	USD
CY2019	apog	Proceedsfromnewmarketstaxcredittransactionnetofdeferredcosts Proceedsfromnewmarketstaxcredittransactionnetofdeferredcosts	8850000	USD
CY2018	apog	Proceedsfromnewmarketstaxcredittransactionnetofdeferredcosts Proceedsfromnewmarketstaxcredittransactionnetofdeferredcosts	0	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
CY2018	apog	Operating Lease Right Of Use Asset Amortization OperatingLeaseRightOfUseAssetAmortization	0	USD
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	1516000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	2179000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	1431000	USD
CY2020	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	4217000	USD
CY2019	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-18164000	USD
CY2018	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-18172000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-7142000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-5114000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-10387000	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
CY2018	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-1134000	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
CY2018	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-25627000	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
CY2018	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-16541000	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
CY2018	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	315000	USD
CY2020	apog	Increase Decrease Operating Lease Liabilities IncreaseDecreaseOperatingLeaseLiabilities	10829000	USD
CY2019	apog	Increase Decrease Operating Lease Liabilities IncreaseDecreaseOperatingLeaseLiabilities	0	USD
CY2018	apog	Increase Decrease Operating Lease Liabilities IncreaseDecreaseOperatingLeaseLiabilities	0	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
CY2018	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	3714000	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
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	127463000	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
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	53196000	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
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	1394000	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
CY2018	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	10244000	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
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	10476000	USD
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	182849000	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
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-851000	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
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-233568000	USD
CY2020	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	229000000	USD
CY2019	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	363000000	USD
CY2018	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	385700000	USD
CY2020	apog	Proceedsfrom Term Loan Issuance ProceedsfromTermLoanIssuance	150000000	USD
CY2019	apog	Proceedsfrom Term Loan Issuance ProceedsfromTermLoanIssuance	0	USD
CY2018	apog	Proceedsfrom Term Loan Issuance ProceedsfromTermLoanIssuance	0	USD
CY2020	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	406500000	USD
CY2019	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	333000000	USD
CY2018	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	235740000	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
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	33676000	USD
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	18714000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	17864000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	16393000	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
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-1557000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-74514000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-32326000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	98334000	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
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-7771000	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
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-167000	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
CY2017Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	27297000	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	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	2999000	USD
CY2018Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	19359000	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
CY2018	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	1784000	USD
CY2020	apog	Deferred Acquisition Payments DeferredAcquisitionPayments	0	USD
CY2019	apog	Deferred Acquisition Payments DeferredAcquisitionPayments	0	USD
CY2018	apog	Deferred Acquisition Payments DeferredAcquisitionPayments	7500000	USD
CY2017Q1	us-gaap	Shares Outstanding SharesOutstanding	28680000	shares
CY2017Q1	us-gaap	Stockholders Equity StockholdersEquity	470577000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	79488000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-95000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	156000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	284000	USD
CY2018	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	6692000	USD
CY2018	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	128000	shares
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	65000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6205000	USD
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	102000	shares
CY2018	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	834000	USD
CY2018	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	702000	shares
CY2018	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	33676000	USD
CY2018	us-gaap	Stock Redeemed Or Called During Period Shares StockRedeemedOrCalledDuringPeriodShares	50000	shares
CY2018	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	2782000	USD
CY2018	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	16393000	USD
CY2018Q1	us-gaap	Shares Outstanding SharesOutstanding	28158000	shares
CY2018Q1	us-gaap	Stockholders Equity StockholdersEquity	511355000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	45694000	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 Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-565000	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 Incomplete Accounting Change In Tax Rate Deferred Tax Asset Provisional Income Tax Expense TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxAssetProvisionalIncomeTaxExpense	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	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 Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	257000	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 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	Dividends Common Stock Cash DividendsCommonStockCash	18714000	USD
CY2020Q1	us-gaap	Shares Outstanding SharesOutstanding	26443000	shares
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	516778000	USD
CY2020	us-gaap	Fiscal Period FiscalPeriod	<div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">Fiscal year</span></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Our fiscal year ends on the Saturday closest to the last day of February, or as determined by the Board of Directors. Fiscal </span><span style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">2020</span><span style="font-family:inherit;font-size:10pt;">, </span><span style="font-family:inherit;font-size:10pt;">2019</span><span style="font-family:inherit;font-size:10pt;"> and </span><span style="font-family:inherit;font-size:10pt;">2018</span><span style="font-family:inherit;font-size:10pt;"> each consisted of </span><span style="font-family:inherit;font-size:10pt;">52</span><span style="font-family:inherit;font-size:10pt;"> weeks. </span></div>
CY2020	us-gaap	Use Of Estimates UseOfEstimates	<div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">Accounting estimates</span></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">The 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. </span></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div>
CY2020	us-gaap	Guarantees Indemnifications And Warranties Policies GuaranteesIndemnificationsAndWarrantiesPolicies	<div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">Warranty and project-related contingencies</span></div>We 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.
CY2020	apog	Number Of Businesses Which Operate Under Long Term Fixed Price Contracts NumberOfBusinessesWhichOperateUnderLongTermFixedPriceContracts	3	business
CY2020	apog	Number Of Businesses Which Operate Under Long Term Fixed Price Contracts Percent Of Total Revenue NumberOfBusinessesWhichOperateUnderLongTermFixedPriceContractsPercentOfTotalRevenue	0.31
CY2020	apog	Number Of Businesses Which Recognize Revenue Following The Over Time Output Method NumberOfBusinessesWhichRecognizeRevenueFollowingTheOverTimeOutputMethod	1	business
CY2020	apog	Number Of Businesses Which Recognize Revenue Following The Over Time Output Method Percent Of Total Revenue NumberOfBusinessesWhichRecognizeRevenueFollowingTheOverTimeOutputMethodPercentOfTotalRevenue	0.25
CY2020	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	16600000	USD
CY2019	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	19500000	USD
CY2018	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	14000000.0	USD
CY2018Q1	us-gaap	Business Acquisition Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax Per Share Diluted BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareDiluted	0.81
CY2018	us-gaap	Business Acquisition Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax Per Share Diluted BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareDiluted	2.83
CY2020Q1	apog	Revenue Remaining Performance Obligation Amount RevenueRemainingPerformanceObligationAmount	987400000	USD
CY2018	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	81653000	USD
CY2020Q1	us-gaap	Accounts Receivable Gross AccountsReceivableGross	199275000	USD
CY2019Q1	us-gaap	Accounts Receivable Gross AccountsReceivableGross	197139000	USD
CY2020Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	2469000	USD
CY2018Q1	us-gaap	Business Acquisition Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax Per Share Basic BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareBasic	0.82
CY2018	us-gaap	Business Acquisition Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax Per Share Basic BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareBasic	2.86
CY2018Q1	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	353453000	USD
CY2018	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	1398733000	USD
CY2018Q1	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	23157000	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
CY2020	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	23221000	USD
CY2019Q1	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	87491000	USD
CY2020Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	35954000	USD
CY2019Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	24083000	USD
CY2019Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	4372000	USD
CY2020Q1	us-gaap	Accounts Receivable Net AccountsReceivableNet	196806000	USD
CY2019Q1	us-gaap	Accounts Receivable Net AccountsReceivableNet	192767000	USD
CY2020Q1	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	110923000	USD
CY2019	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	10380000	USD
CY2020	us-gaap	Contract With Customer Performance Obligation Satisfied In Previous Period ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod	15641000	USD
CY2019	us-gaap	Contract With Customer Performance Obligation Satisfied In Previous Period ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod	5898000	USD
CY2020Q1	apog	Revenue Remaining Performance Obligation Amount RevenueRemainingPerformanceObligationAmount	987400000	USD
CY2020Q1	apog	Revenue Remaining Performance Obligation Amount RevenueRemainingPerformanceObligationAmount	437000000	USD
CY2020Q1	apog	Revenue Remaining Performance Obligation Amount RevenueRemainingPerformanceObligationAmount	394500000	USD
CY2020Q1	apog	Revenue Remaining Performance Obligation Amount RevenueRemainingPerformanceObligationAmount	155900000	USD
CY2019Q1	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	15533000	USD
CY2020Q1	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	16958000	USD
CY2019Q1	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	18921000	USD
CY2020Q1	us-gaap	Inventory Net InventoryNet	71089000	USD
CY2019Q1	us-gaap	Inventory Net InventoryNet	78344000	USD
CY2020Q1	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	36611000	USD
CY2019Q1	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	43890000	USD
CY2020Q1	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	17520000	USD
CY2020Q1	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	12822000	USD
CY2019Q1	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	12475000	USD
CY2020Q1	apog	Contract Liabilities Current ContractLiabilitiesCurrent	48962000	USD
CY2019Q1	apog	Contract Liabilities Current ContractLiabilitiesCurrent	37085000	USD
CY2020Q1	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	5952000	USD
CY2019Q1	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	8026000	USD
CY2020Q1	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	8307000	USD
CY2019Q1	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	9537000	USD
CY2020Q1	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	42271000	USD
CY2019Q1	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	25573000	USD
CY2020Q1	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	118314000	USD
CY2019Q1	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	92696000	USD
CY2020Q1	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	15717000	USD
CY2019Q1	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	26458000	USD
CY2020Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	8294000	USD
CY2019Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	7633000	USD
CY2020Q1	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	8452000	USD
CY2019Q1	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	10408000	USD
CY2020Q1	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	11967000	USD
CY2020Q1	apog	Additional Other Liabilities Noncurrent AdditionalOtherLiabilitiesNoncurrent	24399000	USD
CY2019Q1	apog	Additional Other Liabilities Noncurrent AdditionalOtherLiabilitiesNoncurrent	32683000	USD
CY2020Q1	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	56862000	USD
CY2019Q1	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	77182000	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
CY2019Q1	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	12481000	USD
CY2019Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	59000	USD
CY2019Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	108000	USD
CY2019Q1	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	12432000	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
CY2019Q1	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	2015000	USD
CY2019Q1	us-gaap	Commercial Paper At Carrying Value CommercialPaperAtCarryingValue	300000	USD
CY2019Q1	apog	Longterm Investments Municipal And Corporate Bonds LongtermInvestmentsMunicipalAndCorporateBonds	12432000	USD
CY2020Q1	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	206729000	USD
CY2020Q1	apog	Intangible Assets Accumulated Amortization IntangibleAssetsAccumulatedAmortization	65637000	USD
CY2020Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	711697000	USD
CY2019Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	676070000	USD
CY2020Q1	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	387311000	USD
CY2019Q1	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	360247000	USD
CY2020Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	324386000	USD
CY2019Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	315823000	USD
CY2020	us-gaap	Depreciation Depreciation	36100000	USD
CY2018	us-gaap	Depreciation Depreciation	37100000	USD
CY2018Q1	us-gaap	Goodwill Goodwill	180956000	USD
CY2019	us-gaap	Goodwill Translation And Purchase Accounting Adjustments GoodwillTranslationAndPurchaseAccountingAdjustments	6267000	USD
CY2019	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-1391000	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
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	161308000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	65637000	USD
CY2020Q1	apog	Finite Lived Identifiable Intangible Assets Translation Adjustments FiniteLivedIdentifiableIntangibleAssetsTranslationAdjustments	781000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	94890000	USD
CY2020Q1	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	162800000	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
CY2019Q1	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	164513000	USD
CY2019Q1	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	58271000	USD
CY2019Q1	apog	Finite Lived Identifiable Intangible Assets Translation Adjustments FiniteLivedIdentifiableIntangibleAssetsTranslationAdjustments	3428000	USD
CY2019Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	102814000	USD
CY2019Q1	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	213591000	USD
CY2019Q1	apog	Intangible Assets Accumulated Amortization IntangibleAssetsAccumulatedAmortization	58271000	USD
CY2019Q1	apog	Intangible Assets Impairment IntangibleAssetsImpairment	3141000	USD
CY2019Q1	apog	Intangible Assets Foreign Currency Translation IntangibleAssetsForeignCurrencyTranslation	3944000	USD
CY2019Q1	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	148235000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	7700000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	12700000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	17800000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	7935000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	7930000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	7765000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	7590000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	7376000	USD
CY2020Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	5400000	USD
CY2020Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	152000000	USD
CY2020Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	1000000	USD
CY2020Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	0	USD
CY2020Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	47500000	USD
CY2020Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	12000000	USD
CY2020Q1	us-gaap	Long Term Debt LongTermDebt	217900000	USD
CY2020	us-gaap	Interest Expense Other InterestExpenseOther	326000	USD
CY2020	apog	Debt Instrument Average Daily Borrowings During Year DebtInstrumentAverageDailyBorrowingsDuringYear	241036000	USD
CY2019	apog	Debt Instrument Average Daily Borrowings During Year DebtInstrumentAverageDailyBorrowingsDuringYear	207358000	USD
CY2020	apog	Debt Instrument Maximum Borrowings Outstanding During Year DebtInstrumentMaximumBorrowingsOutstandingDuringYear	282000000	USD
CY2019	apog	Debt Instrument Maximum Borrowings Outstanding During Year DebtInstrumentMaximumBorrowingsOutstandingDuringYear	249000000	USD
CY2020Q1	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.0291
CY2019Q1	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.0361
CY2020	us-gaap	Interest Expense Debt InterestExpenseDebt	8891000	USD
CY2019	us-gaap	Interest Expense Debt InterestExpenseDebt	8114000	USD
CY2018	us-gaap	Interest Expense Debt InterestExpenseDebt	5208000	USD
CY2019	us-gaap	Interest Expense Other InterestExpenseOther	335000	USD
CY2018	us-gaap	Interest Expense Other InterestExpenseOther	300000	USD
CY2020	us-gaap	Interest Expense InterestExpense	9217000	USD
CY2019	us-gaap	Interest Expense InterestExpense	8449000	USD
CY2018	us-gaap	Interest Expense InterestExpense	5508000	USD
CY2020	us-gaap	Interest Paid InterestPaid	9100000	USD
CY2019	us-gaap	Interest Paid InterestPaid	8100000	USD
CY2018	us-gaap	Interest Paid InterestPaid	5300000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	13671000	USD
CY2020Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y9M18D
CY2020Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.036
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.45
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	2121000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	2969000	USD
CY2020	us-gaap	Lease Cost LeaseCost	18761000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	13614000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	15948000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	12742000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	11037000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	10147000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	8151000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	6319000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	12364000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	60760000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	-6325000	USD
CY2020Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	54435000	USD
CY2020Q1	apog	Lessee Operating Lease Lease Not Yet Commenced Undiscounted Amount LesseeOperatingLeaseLeaseNotYetCommencedUndiscountedAmount	5500000	USD
CY2019Q1	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	14888000	USD
CY2019Q1	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	11787000	USD
CY2019Q1	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	9669000	USD
CY2019Q1	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	8772000	USD
CY2019Q1	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	6735000	USD
CY2019Q1	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	16806000	USD
CY2019Q1	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	68657000	USD
CY2020Q1	apog	Number Of Manufacturing Facilities That Union Employees Are Covered With401 K Plan NumberOfManufacturingFacilitiesThatUnionEmployeesAreCoveredWith401KPlan	2	Facility
CY2020	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.60
CY2020	apog	Defined Contribution Plan Employer Contribution Amount DefinedContributionPlanEmployerContributionAmount	9000000.0	USD
CY2019	apog	Defined Contribution Plan Employer Contribution Amount DefinedContributionPlanEmployerContributionAmount	8000000.0	USD
CY2018	apog	Defined Contribution Plan Employer Contribution Amount DefinedContributionPlanEmployerContributionAmount	7500000	USD
CY2020Q1	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	16600000	USD
CY2020Q1	apog	Mutual Fund Investments MutualFundInvestments	400000	USD
CY2020	us-gaap	Multiemployer Plans Plan Contributions1 MultiemployerPlansPlanContributions1	6200000	USD
CY2019	us-gaap	Multiemployer Plans Plan Contributions1 MultiemployerPlansPlanContributions1	4900000	USD
CY2018	us-gaap	Multiemployer Plans Plan Contributions1 MultiemployerPlansPlanContributions1	2900000	USD
CY2019Q1	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	13310000	USD
CY2018Q1	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	13834000	USD
CY2020	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	492000	USD
CY2019	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	506000	USD
CY2020	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-1567000	USD
CY2019Q1	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	5330000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-8385000	USD
CY2019Q1	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-7980000	USD
CY2019Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	684000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	591000	USD
CY2019Q1	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	337000	USD
CY2020Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	682000	USD
CY2019	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	19000	USD
CY2020	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	998000	USD
CY2019	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	1011000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	14371000	USD
CY2019Q1	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	13310000	USD
CY2019Q1	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	5330000	USD
CY2018Q1	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	4169000	USD
CY2020	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	1002000	USD
CY2019	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	97000	USD
CY2020	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	652000	USD
CY2019	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	2075000	USD
CY2020	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	998000	USD
CY2019	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	1011000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	5986000	USD
CY2020Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	8294000	USD
CY2019Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	7633000	USD
CY2020Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	8385000	USD
CY2019Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	7980000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	-5553000	USD
CY2019Q1	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	-5025000	USD
CY2019	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	506000	USD
CY2018	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	531000	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
CY2018	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	41000	USD
CY2020	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-219000	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	405000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-229000	USD
CY2020	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	492000	USD
CY2019	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-226000	USD
CY2018	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-228000	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
CY2018	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	718000	USD
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
CY2018Q1	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0380
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
CY2018	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0380
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
CY2018	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0200
CY2020	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	700000	USD
CY2019	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	2100000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	1052000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	1012000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	979000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	955000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	921000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	4260000	USD
CY2020Q1	us-gaap	Guarantees Fair Value Disclosure GuaranteesFairValueDisclosure	913900000	USD
CY2020Q1	apog	Companies Backlog Related To Sales CompaniesBacklogRelatedToSales	487500000	USD
CY2019Q1	us-gaap	Extended Product Warranty Accrual ExtendedProductWarrantyAccrual	16737000	USD
CY2018Q1	us-gaap	Extended Product Warranty Accrual ExtendedProductWarrantyAccrual	22517000	USD
CY2020	us-gaap	Extended Product Warranty Accrual Warranties Issued ExtendedProductWarrantyAccrualWarrantiesIssued	8224000	USD
CY2019	us-gaap	Extended Product Warranty Accrual Warranties Issued ExtendedProductWarrantyAccrualWarrantiesIssued	5552000	USD
CY2020	us-gaap	Extended Product Warranty Accrual Payments ExtendedProductWarrantyAccrualPayments	9332000	USD
CY2019	us-gaap	Extended Product Warranty Accrual Payments ExtendedProductWarrantyAccrualPayments	11332000	USD
CY2020Q1	us-gaap	Extended Product Warranty Accrual ExtendedProductWarrantyAccrual	15629000	USD
CY2019Q1	us-gaap	Extended Product Warranty Accrual ExtendedProductWarrantyAccrual	16737000	USD
CY2020Q1	apog	Project Related Liability ProjectRelatedLiability	49000000.0	USD
CY2019Q1	apog	Project Related Liability ProjectRelatedLiability	42100000	USD
CY2020	us-gaap	Insurance Recoveries InsuranceRecoveries	15000000.0	USD
CY2020Q1	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	24700000	USD
CY2020Q1	us-gaap	Purchase Obligation PurchaseObligation	170400000	USD
CY2020	apog	Number Of Properties Acquired With Historical Environmental Conditions NumberOfPropertiesAcquiredWithHistoricalEnvironmentalConditions	1	Facility
CY2019Q1	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-35000	USD
CY2020	apog	Gross Proceeds From New Markets Tax Credit Transaction GrossProceedsFromNewMarketsTaxCreditTransaction	26500	USD
CY2020Q1	us-gaap	Deferred Costs Current And Noncurrent DeferredCostsCurrentAndNoncurrent	6800	USD
CY2020	apog	New Markets Tax Credit Transaction Benefit Net NewMarketsTaxCreditTransactionBenefitNet	19700	USD
CY2020Q1	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	200000	shares
CY2020Q1	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1.00
CY2020	apog	Stock Repurchase Program Additional Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramAdditionalNumberOfSharesAuthorizedToBeRepurchased	1000000000	shares
CY2020Q1	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	222000	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
CY2019Q1	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-409000	USD
CY2020Q1	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	4257000	USD
CY2019Q1	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	3852000	USD
CY2020Q1	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-29195000	USD
CY2019Q1	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-27831000	USD
CY2020Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-34062000	USD
CY2019Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-32127000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	6600000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	6300000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	6200000	USD
CY2019Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	8.34
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	0
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	8.34
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P1Y6M
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	2192451	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	200000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	800000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	600000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	4800000	USD
CY2019Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	286613	shares
CY2019Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	47.00
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	196453	shares
CY2020	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	37.14
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	151973	shares
CY2020	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	48.02
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	21834	shares
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	42.43
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
CY2020Q1	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions	7300000	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
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	111980000	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
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-2100000	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
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	109880000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	8493000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	22746000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	22074000	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
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	3106000	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	-2720000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	-459000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1578000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	7837000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	17850000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	26758000	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
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	4049000	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
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	351000	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
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-1205000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	10463000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-5506000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	3195000	USD
CY2020	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	-464000	USD
CY2019	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	624000	USD
CY2018	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	439000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	17836000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12968000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	30392000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	17800000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	16500000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	25700000	USD
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
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.327
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
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	-0.037
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	0
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	0
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	0.022
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
CY2018	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.018
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
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.007
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
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.009
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
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.007
CY2019Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	8546000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	41453000	USD
CY2019Q1	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	32558000	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	8166000	USD
CY2019Q1	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	5151000	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	32296000	USD
CY2019Q1	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	24289000	USD
CY2020Q1	apog	Deferred Tax Assets Liabilities Other Non Current DeferredTaxAssetsLiabilitiesOtherNonCurrent	1502000	USD
CY2019Q1	apog	Deferred Tax Assets Liabilities Other Non Current DeferredTaxAssetsLiabilitiesOtherNonCurrent	1550000	USD
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.224
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.221
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.277
CY2020	apog	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Impact Percent EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017ImpactPercent	0.056
CY2020Q1	apog	Deferred Tax Assets Liabilities Tax Deferred Expense Reserves And Accruals Other Non Current DeferredTaxAssetsLiabilitiesTaxDeferredExpenseReservesAndAccrualsOtherNonCurrent	15832000	USD
CY2019Q1	apog	Deferred Tax Assets Liabilities Tax Deferred Expense Reserves And Accruals Other Non Current DeferredTaxAssetsLiabilitiesTaxDeferredExpenseReservesAndAccrualsOtherNonCurrent	13530000	USD
CY2020Q1	apog	Deferred Tax Assets Liabilities Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost Non Current DeferredTaxAssetsLiabilitiesTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCostNonCurrent	7934000	USD
CY2019Q1	apog	Deferred Tax Assets Liabilities Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost Non Current DeferredTaxAssetsLiabilitiesTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCostNonCurrent	9007000	USD
CY2020Q1	apog	Unrecognized Tax Benefits Non Current UnrecognizedTaxBenefitsNonCurrent	1941000	USD
CY2019Q1	apog	Unrecognized Tax Benefits Non Current UnrecognizedTaxBenefitsNonCurrent	2547000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	5238000	USD
CY2019Q1	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	4557000	USD
CY2020Q1	apog	Deferredtaxassetsoperatingleaseliabilities Deferredtaxassetsoperatingleaseliabilities	6640000	USD
CY2019Q1	apog	Deferredtaxassetsoperatingleaseliabilities Deferredtaxassetsoperatingleaseliabilities	0	USD
CY2020Q1	apog	Deferred Tax Assets Operating Loss Carryforwards Non Current DeferredTaxAssetsOperatingLossCarryforwardsNonCurrent	11093000	USD
CY2019Q1	apog	Deferred Tax Assets Operating Loss Carryforwards Non Current DeferredTaxAssetsOperatingLossCarryforwardsNonCurrent	9913000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	50180000	USD
CY2019Q1	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	41104000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	8727000	USD
CY2018Q1	apog	Unrecognized Tax Benefits That Would Result In Adjustments To Deferred Taxes UnrecognizedTaxBenefitsThatWouldResultInAdjustmentsToDeferredTaxes	2300000	USD
CY2020	apog	Unrecognized Tax Benefits Increase Resultingfrom Revaluation UnrecognizedTaxBenefitsIncreaseResultingfromRevaluation	0	USD
CY2020Q1	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	300000	USD
CY2018Q1	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	400000	USD
CY2020Q1	apog	Deferred Tax Liabilities Operating Lease Assets DeferredTaxLiabilitiesOperatingLeaseAssets	6666000	USD
CY2019Q1	apog	Deferred Tax Liabilities Operating Lease Assets DeferredTaxLiabilitiesOperatingLeaseAssets	0	USD
CY2020Q1	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	47128000	USD
CY2019Q1	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	29440000	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	5675000	USD
CY2019Q1	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	3118000	USD
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
CY2018Q1	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	2400000	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
CY2019Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	5111000	USD
CY2018Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4705000	USD
CY2017Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4075000	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
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	614000	USD
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
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	122000	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
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	639000	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
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2020	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	432000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	481000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	519000	USD
CY2020Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4071000	USD
CY2019Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	5111000	USD
CY2019	apog	Unrecognized Tax Benefits Increase Resultingfrom Revaluation UnrecognizedTaxBenefitsIncreaseResultingfromRevaluation	0	USD
CY2018	apog	Unrecognized Tax Benefits Increase Resultingfrom Revaluation UnrecognizedTaxBenefitsIncreaseResultingfromRevaluation	18000	USD
CY2018Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4705000	USD
CY2020	apog	Unrecognized Tax Benefits Reductions Resulting From Settlements With Taxing Authorities And Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromSettlementsWithTaxingAuthoritiesAndLapseOfApplicableStatuteOfLimitations	400000	USD
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
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	28534000	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
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	270000	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
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	28804000	shares
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	99000	shares
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	134000	shares
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	141000	shares
CY2020	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	4
CY2020	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	6	operating_segment
CY2020	us-gaap	Revenues Revenues	1387439000	USD
CY2019	us-gaap	Revenues Revenues	1402637000	USD
CY2018	us-gaap	Revenues Revenues	1326173000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	87848000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	67284000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	114284000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	46795000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	49798000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	54843000	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
CY2020	us-gaap	Insurance Recoveries InsuranceRecoveries	15000000.0	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	53196000	USD
CY2020Q1	us-gaap	Assets Assets	1128991000	USD
CY2019Q1	us-gaap	Assets Assets	1068168000	USD
CY2018Q1	us-gaap	Assets Assets	1022320000	USD
CY2020	apog	Project Related Charges ProjectRelatedCharges	16700000	USD
CY2019	apog	Project Related Charges ProjectRelatedCharges	40900000	USD
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.32
CY2018Q2	us-gaap	Revenues Revenues	336531000	USD
CY2020	us-gaap	Revenues Revenues	1387439000	USD
CY2019	us-gaap	Revenues Revenues	1402637000	USD
CY2018	us-gaap	Revenues Revenues	1326173000	USD
CY2020Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	324386000	USD
CY2019Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	315823000	USD
CY2018Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	304063000	USD
CY2019Q2	us-gaap	Revenues Revenues	355365000	USD
CY2019Q3	us-gaap	Revenues Revenues	357058000	USD
CY2019Q4	us-gaap	Revenues Revenues	337916000	USD
CY2020Q1	us-gaap	Revenues Revenues	337100000	USD
CY2020	us-gaap	Revenues Revenues	1387439000	USD
CY2019Q2	us-gaap	Gross Profit GrossProfit	80967000	USD
CY2019Q3	us-gaap	Gross Profit GrossProfit	86207000	USD
CY2019Q4	us-gaap	Gross Profit GrossProfit	74310000	USD
CY2020Q1	us-gaap	Gross Profit GrossProfit	77475000	USD
CY2020	us-gaap	Gross Profit GrossProfit	318959000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	15443000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	19279000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	15234000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	11958000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	61914000	USD
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.58
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.73
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.58
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.45
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.34
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.58
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.72
CY2018Q3	us-gaap	Revenues Revenues	362133000	USD
CY2018Q4	us-gaap	Revenues Revenues	357718000	USD
CY2019Q1	us-gaap	Revenues Revenues	346255000	USD
CY2019	us-gaap	Revenues Revenues	1402637000	USD
CY2018Q2	us-gaap	Gross Profit GrossProfit	80730000	USD
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.54
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.72
CY2018Q3	us-gaap	Gross Profit GrossProfit	84466000	USD
CY2018Q4	us-gaap	Gross Profit GrossProfit	84090000	USD
CY2019Q1	us-gaap	Gross Profit GrossProfit	44279000	USD
CY2019	us-gaap	Gross Profit GrossProfit	293565000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	15373000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	20513000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	21891000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	-12083000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	45694000	USD
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.55
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.73
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.79
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.45
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.64
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.78
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.45
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.63

Files In Submission

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0000006845-20-000008-index.html	Edgar Link	pending
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apog-20200229.xsd	Edgar Link	pending
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$APOG
APOGEE ENTERPRISES, INC. Stock $apog

2020 Q1 Form 10-K Financial Statement

#000000684520000008 Filed on April 24, 2020

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

#000000684520000008 Filed on April 24, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$APOG
APOGEE ENTERPRISES, INC. Stock $apog