Goodwill and Intangible Assets, net - Summary of Goodwill and Definite-lived Intangible Assets, Net (Detail) - USD ($) $ in Thousands		3 Months Ended
		Apr. 30, 2022	May 01, 2021
Goodwill [Line Items]
Goodwill, beginning balance	[1]	$ 271,416	$ 13,157
Foreign currency fluctuation	[1]	(18)	238
Goodwill, net ending balance	[1]	271,398	13,395
Intangible assets, beginning balance, at cost		102,701	57,065
Additions		262	376
Amortization		(2,284)	(1,140)
Intangible assets, net	[2]	100,679	56,301
Operating Segments | American Eagle
Goodwill [Line Items]
Goodwill, beginning balance		114,883	13,157
Foreign currency fluctuation		(18)	238
Goodwill, net ending balance		114,865	$ 13,395
Operating Segments | Aerie
Goodwill [Line Items]
Goodwill, beginning balance		110,600
Goodwill, net ending balance		110,600
Corporate and Other, Non-Segment
Goodwill [Line Items]
Goodwill, beginning balance	[3]	45,933
Goodwill, net ending balance	[3]	$ 45,933

[1] Beginning balances for both periods include accumulated impairment of $4.2 million

[2] The ending balance includes accumulated amortization of $44.8 million and $36.7 million as of April 30, 2022 and May 1, 2021, respectively.

[3] Corporate and Other includes goodwill allocated to the Supply Chain Platform reporting unit, which has been identified as a separate operating segment, but is not material to disclose as a separate reportable segment.