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No authoritative reference available. true 5 Gross profit 1 us-gaap_GrossProfit us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 239708000 239708 false false false 2 false true false false 253898000 253898 false false false 3 false true false false 497404000 497404 false false false 4 false true false false 477501000 477501 false false false xbrli:monetaryItemType monetary Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. No authoritative reference available. false 6 Selling, general and administrative expenses 1 us-gaap_SellingGeneralAndAdministrativeExpense us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 165493000 165493 false false false 2 false true false false 160858000 160858 false false false 3 false true false false 334138000 334138 false false false 4 false true false false 312646000 312646 false false false xbrli:monetaryItemType monetary The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. 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Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 5 true 8 Operating income 1 us-gaap_OperatingIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 38166000 38166 false false false 2 false true false false 59609000 59609 false false false 3 false true false false 91692000 91692 false false false 4 false true false false 98436000 98436 false false false xbrli:monetaryItemType monetary The net result for the period of deducting operating expenses from operating revenues. No authoritative reference available. false 9 Other income (expense), net 1 us-gaap_OtherNonoperatingIncomeExpense us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 138000 138 false false false 2 false true false false -3926000 -3926 false false false 3 false true false false 259000 259 false false false 4 false true false false -6237000 -6237 false false false xbrli:monetaryItemType monetary The net amount of other nonoperating income and expense, which does not qualify for separate disclosure on the income statement under materiality guidelines. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 9 -Article 5 true 10 Total other-than-temporary impairment losses 1 aeo_TotalOtherThanTemporaryImpairmentLosses aeo false debit duration Total other-than-temporary impairment losses. false false false false false false false false false false true negated false 1 false true false false -4575000 -4575 false false false 2 false true false false -2939000 -2939 false false false 3 false true false false -5089000 -5089 false false false 4 false true false false -2939000 -2939 false false false xbrli:monetaryItemType monetary Total other-than-temporary impairment losses. No authoritative reference available. false 11 Portion of loss recognized in other comprehensive income, before tax 1 aeo_PortionOfLossRecognizedInOtherComprehensiveIncomeBeforeTax aeo false debit duration Portion of loss recognized in other comprehensive income, before tax. false false false false false false false false false false true negatedtotal false 1 false true false false 3327000 3327 false false false 2 false true false false 2714000 2714 false false false 3 false true false false 3841000 3841 false false false 4 false true false false 2714000 2714 false false false xbrli:monetaryItemType monetary Portion of loss recognized in other comprehensive income, before tax. No authoritative reference available. true 12 Net impairment loss recognized in earnings 1 us-gaap_ImpairmentOfInvestments us-gaap true debit duration No definition available. false false false false false false false false false false true negatedtotal false 1 false true false false -1248000 -1248 false false false 2 false true false false -225000 -225 false false false 3 false true false false -1248000 -1248 false false false 4 false true false false -225000 -225 false false false xbrli:monetaryItemType monetary This element represents the amount by which the carrying amount exceeds the fair value of the investment. The amount is charged to income if the decline in fair value is deemed to be other than temporary. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 16 true 13 Income before income taxes 1 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 37056000 37056 false false false 2 false true false false 55458000 55458 false false false 3 false true false false 90703000 90703 false false false 4 false true false false 91974000 91974 false false false xbrli:monetaryItemType monetary Sum of operating profit and nonoperating income (expense) before income (loss) from equity method investments, income taxes, extraordinary items, cumulative effects of changes in accounting principles, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 1(i) -Article 4 false 14 Provision for income taxes 1 us-gaap_IncomeTaxExpenseBenefit us-gaap true debit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 11213000 11213 false false false 2 false true false false 18701000 18701 false false false 3 false true false false 28998000 28998 false false false 4 false true false false 26141000 26141 false false false xbrli:monetaryItemType monetary The sum of the current income tax expense (benefit) and the deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 45 -Subparagraph a, b true 15 Income from continuing operations 1 us-gaap_IncomeLossFromContinuingOperations us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 25843000 25843 false false false 2 false true false false 36757000 36757 false false false 3 false true false false 61705000 61705 false false false 4 false true false false 65833000 65833 false false false xbrli:monetaryItemType monetary This element represents the income or loss from continuing operations attributable to the reporting entity which may also be defined as revenue less expenses and taxes from ongoing operations before extraordinary items and cumulative effects of changes in accounting principles, but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 28 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph b(1) true 16 Loss from discontinued operations, net of tax 1 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false -16180000 -16180 false false false 2 false true false false -8185000 -8185 false false false 3 false true false false -41120000 -41120 false false false 4 false true false false -15294000 -15294 false false false xbrli:monetaryItemType monetary This element represents the overall income (loss) from a disposal group apportioned to the parent that is classified as a component of the entity, net of income tax, reported as a separate component of income before extraordinary items and the cumulative effect of accounting changes after deduction or consideration of the amount which may be allocable to noncontrolling interests, if any. Includes the following (net of tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 28 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph b(2) true 17 Net income 1 us-gaap_NetIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 9663000 9663 false false false 2 false true false false 28572000 28572 false false false 3 false true false false 20585000 20585 false false false 4 false true false false 50539000 50539 false false false xbrli:monetaryItemType monetary The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A7 -Appendix A Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 20 -Article 9 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 10, 15 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 87-21 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28, 29, 30 true 18 Basic income per common share 1 us-gaap_EarningsPerShareBasicAbstract us-gaap true na duration No definition available. false false false false false true false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 19 Income from continuing operations 2 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare us-gaap true na duration No definition available. false false false false false false false false false false false verboselabel true 1 true true false false 0.13 0.13 false false false 2 true true false false 0.18 0.18 false false false 3 true true false false 0.3 0.3 false false false 4 true true false false 0.32 0.32 false false false us-types:perShareItemType decimal The amount of income (loss) from continuing operations per each share of common stock outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 21 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 36, 37, 38 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 18 -Article 7 false 20 Loss from discontinued operations 2 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare us-gaap true na duration No definition available. false false false false false false false false false false false totallabel true 1 true true false false -0.08 -0.08 false false false 2 true true false false -0.04 -0.04 false false false 3 true true false false -0.2 -0.2 false false false 4 true true false false -0.07 -0.07 false false false us-types:perShareItemType decimal The amount of income (loss) from disposition of discontinued operations, net of related tax effect, per each share of common stock outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 8, 9, 10, 36, 37, 38 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 18 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 21 -Article 9 true 21 Net income per basic share 2 us-gaap_EarningsPerShareBasic us-gaap true na duration No definition available. false false false false false false false false false false false totallabel true 1 true true false false 0.05 0.05 false false false 2 true true false false 0.14 0.14 false false false 3 true true false false 0.1 0.1 false false false 4 true true false false 0.25 0.25 false false false us-types:perShareItemType decimal The amount of net income or loss for the period per each share of common stock outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 21 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 36, 37, 38 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 18 -Article 7 true 22 Diluted income per common share 1 us-gaap_EarningsPerShareDilutedAbstract us-gaap true na duration No definition available. false false false false false true false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 23 Income from continuing operations 2 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare us-gaap true na duration No definition available. false false false false false false false false false false false verboselabel true 1 true true false false 0.13 0.13 false false false 2 true true false false 0.18 0.18 false false false 3 true true false false 0.3 0.3 false false false 4 true true false false 0.31 0.31 false false false us-types:perShareItemType decimal The amount of income (loss) from continuing operations available to each share of common stock outstanding during the reporting period and each share that would have been outstanding assuming the issuance of common shares for all dilutive potential common shares outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 21 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 11, 12, 36, 37, 38 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -Subparagraph a Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 18 -Article 7 false 24 Loss from discontinued operations 2 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare us-gaap true na duration No definition available. false false false false false false false false false false false totallabel true 1 true true false false -0.08 -0.08 false false false 2 true true false false -0.04 -0.04 false false false 3 true true false false -0.2 -0.2 false false false 4 true true false false -0.07 -0.07 false false false us-types:perShareItemType decimal The amount of income (loss) from discontinued operations, net of related tax effect, per each diluted share of common stock outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section E -Paragraph Question 3 true 25 Net income per diluted share 2 us-gaap_EarningsPerShareDiluted us-gaap true na duration No definition available. false false false false false false false false false false false totallabel true 1 true true false false 0.05 0.05 false false false 2 true true false false 0.14 0.14 false false false 3 true true false false 0.1 0.1 false false false 4 true true false false 0.24 0.24 false false false us-types:perShareItemType decimal The amount of net income or loss for the period per each share of common stock and dilutive common stock equivalents outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 11, 12, 36 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 18 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 21 -Article 9 true 26 Cash dividends per common share 1 us-gaap_CommonStockDividendsPerShareDeclared us-gaap true na duration No definition available. false false false false false false false false false false false verboselabel true 1 true true false false 0.11 0.11 false false false 2 true true false false 0.1 0.1 false false false 3 true true false false 0.21 0.21 false false false 4 true true false false 0.2 0.2 false false false us-types:perShareItemType decimal Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 false 27 Weighted average common shares outstanding - basic 1 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic us-gaap true na duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 201764000 201764 false false false 2 false true false false 206010000 206010 false false false 3 false true false false 204238000 204238 false false false 4 false true false false 205742000 205742 false false false xbrli:sharesItemType shares Number of [basic] shares, after adjustment for contingently issuable shares and other shares not deemed outstanding, determined by relating the portion of time within a reporting period that common shares have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 171 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -Subparagraph a Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 8 false 28 Weighted average common shares outstanding - diluted 1 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding us-gaap true na duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 203153000 203153 false false false 2 false true false false 209015000 209015 false false false 3 false true false false 206430000 206430 false false false 4 false true false false 207974000 207974 false false false xbrli:sharesItemType shares The average number of shares issued and outstanding that are used in calculating diluted EPS, determined based on the timing of issuance of shares in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -Subparagraph a Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 8 false 29 Retained earnings, beginning 1 us-gaap_RetainedEarningsAccumulatedDeficit us-gaap true credit instant No definition available. false false false false false false false false true false false periodstartlabel false 1 false true false false 1749513000 1749513 false false false 2 false true false false 1691823000 1691823 false false false 3 false true false false 1764049000 1764049 false false false 4 false true false false 1694161000 1694161 false false false xbrli:monetaryItemType monetary The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 31 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 false 30 Net income 1 us-gaap_NetIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 9663000 9663 false false false 2 false true false false 28572000 28572 false false false 3 false true false false 20585000 20585 false false false 4 false true false false 50539000 50539 false false false xbrli:monetaryItemType monetary The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes. 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