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Debt (Schedule of Selected Information Related to Long Term Debt) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Feb. 27, 2021 | Feb. 29, 2020
Debt Disclosure [Abstract] |  |
Average daily borrowings during the year | $ 187,397 | $ 241,036
Maximum borrowings outstanding during the year | $ 235,232 | $ 282,000
Weighted average interest rate during the year | 1.89% | 2.91%

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- Definition Debt Instrument Average Daily Borrowings During The Year + References No definition available. + Details
Name: | apog_DebtInstrumentAverageDailyBorrowingsDuringYear
Namespace Prefix: | apog_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Debt Instrument Maximum Borrowings Outstanding During The Year + References No definition available. + Details
Name: | apog_DebtInstrumentMaximumBorrowingsOutstandingDuringYear
Namespace Prefix: | apog_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_DebtDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Weighted average interest rate of debt outstanding. + References No definition available. + Details
Name: | us-gaap_DebtWeightedAverageInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant