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Business Operations - Additional Information (Detail)	Jan. 29, 2022 Country Store
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of retail stores	1,000
Number of international store locations	200
Number of countries company operates in | Country	81

X

- Definition

Number of international store locations.

+ References

No definition available.

+ Details

Name:	aeo_NumberOfInternationalStoreLocations
Namespace Prefix:	aeo_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The number of countries in which the entity operates as of balance sheet date.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfCountriesInWhichEntityOperates
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Represents the number of stores.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfStores
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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