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Acquisitions And Dispositions (Clinton Cards Acquisition) - Charges Incurred for Acquisition (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Feb. 28, 2015
Feb. 28, 2014
Feb. 28, 2013
Business Combination, Separately Recognized Transactions [Line Items]      
Bad debt expense $ 1,214us-gaap_ProvisionForDoubtfulAccounts $ 368us-gaap_ProvisionForDoubtfulAccounts $ 16,064us-gaap_ProvisionForDoubtfulAccounts
Impairment of debt purchased (3,390)am_RecoveryImpairmentOfSecuredDebtAcquired (4,910)am_RecoveryImpairmentOfSecuredDebtAcquired 8,106am_RecoveryImpairmentOfSecuredDebtAcquired
Clinton Cards [Member]      
Business Combination, Separately Recognized Transactions [Line Items]      
Contract asset impairment     3,981us-gaap_AssetImpairmentCharges
/ dei_LegalEntityAxis
= am_ClintonCardsMember
Bad debt expense     16,514us-gaap_ProvisionForDoubtfulAccounts
/ dei_LegalEntityAxis
= am_ClintonCardsMember
Legal and advisory fees     7,129us-gaap_ProfessionalFees
/ dei_LegalEntityAxis
= am_ClintonCardsMember
Impairment of debt purchased     8,106am_RecoveryImpairmentOfSecuredDebtAcquired
/ dei_LegalEntityAxis
= am_ClintonCardsMember
Total     35,730us-gaap_BusinessCombinationSeparatelyRecognizedTransactionsExpensesAndLossesRecognized
/ dei_LegalEntityAxis
= am_ClintonCardsMember
Clinton Cards [Member] | Net Sales [Member]      
Business Combination, Separately Recognized Transactions [Line Items]      
Contract asset impairment     3,981us-gaap_AssetImpairmentCharges
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_SalesMember
/ dei_LegalEntityAxis
= am_ClintonCardsMember
Total     3,981us-gaap_BusinessCombinationSeparatelyRecognizedTransactionsExpensesAndLossesRecognized
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_SalesMember
/ dei_LegalEntityAxis
= am_ClintonCardsMember
Clinton Cards [Member] | Administrative and General Expenses [Member]      
Business Combination, Separately Recognized Transactions [Line Items]      
Bad debt expense     16,514us-gaap_ProvisionForDoubtfulAccounts
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_GeneralAndAdministrativeExpenseMember
/ dei_LegalEntityAxis
= am_ClintonCardsMember
Legal and advisory fees     7,129us-gaap_ProfessionalFees
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_GeneralAndAdministrativeExpenseMember
/ dei_LegalEntityAxis
= am_ClintonCardsMember
Total     23,643us-gaap_BusinessCombinationSeparatelyRecognizedTransactionsExpensesAndLossesRecognized
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_GeneralAndAdministrativeExpenseMember
/ dei_LegalEntityAxis
= am_ClintonCardsMember
Clinton Cards [Member] | Other Operating Income Expense Net [Member]      
Business Combination, Separately Recognized Transactions [Line Items]      
Impairment of debt purchased     8,106am_RecoveryImpairmentOfSecuredDebtAcquired
/ us-gaap_IncomeStatementLocationAxis
= am_OtherOperatingIncomeExpenseNetMember
/ dei_LegalEntityAxis
= am_ClintonCardsMember
Total     $ 8,106us-gaap_BusinessCombinationSeparatelyRecognizedTransactionsExpensesAndLossesRecognized
/ us-gaap_IncomeStatementLocationAxis
= am_OtherOperatingIncomeExpenseNetMember
/ dei_LegalEntityAxis
= am_ClintonCardsMember