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Segment Reporting - Summary of Reportable Segment Information (Parenthetical) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jan. 28, 2023	Jan. 29, 2022	Jan. 30, 2021
Segment Reporting [Abstract]
Interest expense, net	$ 14,297	$ 34,632	$ 24,610
Other income, net	$ 10,465	$ 2,489	$ 3,682

X

- Definition

Non operating interest income (expense) net.

+ References

No definition available.

+ Details

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Namespace Prefix:	aeo_
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Balance Type:	credit
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X

- Definition

Amount of income (expense) related to nonoperating activities, classified as other.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.9)
-URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227

+ Details

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Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration