Goodwill and Intangible Assets, net - Summary of Goodwill and Definite-lived Intangible Assets, Net (Detail) - USD ($) $ in Thousands		12 Months Ended
		Jan. 29, 2022		Jan. 30, 2021
Goodwill [Line Items]
Goodwill, beginning balance		$ 13,267		$ 13,157
Additions from acquisitions		258,133
Foreign currency fluctuation		16		110
Goodwill, net		271,416		13,267
Intangible assets, beginning balance, at cost		57,065	[1]	39,847
Additions		52,580		20,978
Amortization		6,944		3,760
Intangible assets, net	[1]	102,701		57,065
Operating Segments | American Eagle
Goodwill [Line Items]
Goodwill, beginning balance		13,267		13,157
Additions from acquisitions		101,600
Foreign currency fluctuation		16		110
Goodwill, net		114,883		$ 13,267
Operating Segments | Aerie
Goodwill [Line Items]
Additions from acquisitions		110,600
Goodwill, net		110,600
Corporate and Other, Non-Segment
Goodwill [Line Items]
Additions from acquisitions	[2]	45,933
Goodwill, net	[2]	$ 45,933

[1] The ending balance includes accumulated amortization of $42.1 million and $35.6 million as of January 29, 2022 and January 30, 2021. respectively.

[2] 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.