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Summary of Significant Accounting Policies and Related Data (Details Textual) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Feb. 28, 2015
Mar. 01, 2014
Mar. 02, 2013
Accounting Policies [Line Items]      
Prior Period Reclassification Adjustment $ 100us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnOperatingResults    
Reporting period monthly lag 2 months    
Fiscal time period P52W P52W P52W
Percentage of LIFO inventory   53.00%us-gaap_PercentageOfLIFOInventory  
Impairment charge 0us-gaap_GoodwillAndIntangibleAssetImpairment    
Percentage of net sales recorded on a percentage of completion basis 25.00%apog_PercentageOfNetSalesRecordedOnPercentageOfCompletionBasis 26.00%apog_PercentageOfNetSalesRecordedOnPercentageOfCompletionBasis 27.00%apog_PercentageOfNetSalesRecordedOnPercentageOfCompletionBasis
Research and development expense 6,500us-gaap_ResearchAndDevelopmentExpense 7,800us-gaap_ResearchAndDevelopmentExpense 6,800us-gaap_ResearchAndDevelopmentExpense
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets 500us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1    
Cost of Sales      
Accounting Policies [Line Items]      
Research and development expense 2,400us-gaap_ResearchAndDevelopmentExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_CostOfSalesMember
2,100us-gaap_ResearchAndDevelopmentExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_CostOfSalesMember
1,600us-gaap_ResearchAndDevelopmentExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_CostOfSalesMember
Selling, general and administrative expenses      
Accounting Policies [Line Items]      
Advertising expense 1,100us-gaap_AdvertisingExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_SellingGeneralAndAdministrativeExpensesMember
1,200us-gaap_AdvertisingExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_SellingGeneralAndAdministrativeExpensesMember
1,400us-gaap_AdvertisingExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_SellingGeneralAndAdministrativeExpensesMember
Minimum      
Accounting Policies [Line Items]      
Performance period for percentage of completion contracts 12 months    
Maximum      
Accounting Policies [Line Items]      
Performance period for percentage of completion contracts 18 months    
Current Liabilities and Other Non Current Liabilities      
Accounting Policies [Line Items]      
Reserve for environmental liabilities $ 1,800us-gaap_AccrualForEnvironmentalLossContingencies
/ us-gaap_BalanceSheetLocationAxis
= apog_CurrentLiabilitiesAndOtherNonCurrentLiabilitiesMember