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Impairment, Restructuring and Other Charges - Rollforward of Restructuring Liabilities Recognized in Consolidated Balance Sheets (Detail) $ in Thousands	12 Months Ended
	Feb. 01, 2025 USD ($)
Restructuring and Related Activities [Abstract]
Accrued liability as of February 3, 2024	$ 11,414
Add: Costs incurred, excluding non-cash charges	10,728
Less: Cash payments and adjustments	(14,492)
Accrued liability as of February 1, 2025	$ 7,650

X

- Definition

Payments for restructuring and restructuring reserve accrual adjustment.

+ References

No definition available.

+ Details

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Namespace Prefix:	aeo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. It excludes non-cash charges.

+ References

No definition available.

+ Details

Name:	aeo_RestructuringChargeCashCharges
Namespace Prefix:	aeo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_RestructuringAndRelatedActivitiesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 420
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4.b.2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 420
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482017/420-10-50-1

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant