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Summary of Significant Accounting Policies - Additional Information (Detail) |  | 12 Months Ended
--- | --- | ---
Feb. 03, 2019 USD ($) | Jan. 30, 2021 USD ($) Segment | Feb. 01, 2020 USD ($) | Feb. 02, 2019 USD ($)
Significant Accounting Policies [Line Items] |  |  |  |
Number of reportable segments | Segment |  | 2 |  |
Operating lease right-of-use assets |  | $ 1,155,965,000 | $ 1,418,916,000 |
Operating lease, liability |  | 1,477,366,000 |  |
Net increase (decrease) to opening retained earnings due to cumulative impact of adoption |  | $ 1,868,613,000 | 2,108,292,000 |
Weighted average remaining useful life, assets |  | 7 years 2 months 12 days |  |
Goodwill impairment charge |  | $ 0 | 1,700,000 |
Definite-lived impairment charges |  | 0 | 0 | $ 0
Revenue related to gift card breakage |  | $ 8,800,000 | 9,500,000 | 8,900,000
Reward expiration period |  | 60 days |  |
Credit Card Reward Program Description |  | This Program features both shared and unique benefits for loyalty members and credit card holders. Under the Program, members accumulate points based on purchase activity and earn rewards by reaching certain point thresholds. Members earn rewards in the form of discount savings certificates. Prior to this launch in June 2020, under our previous program, AEO Connected™, we also offered additional rewards for key items such as jeans and bras. Rewards earned are valid through the stated expiration date, which is 60 days from the issuance date of the reward. Rewards not redeemed during the 60-day redemption period are forfeited. |  |
Prepaid advertising expense |  | $ 5,700,000 | 14,500,000 |
Advertising expense |  | $ 150,000,000.0 | $ 151,500,000 | $ 143,200,000
Minimum |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Definite-lived intangibles, useful life |  | 15 years |  |
Maximum |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Definite-lived intangibles, useful life |  | 25 years |  |
Accounting Standards Update 2016-02 |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Operating lease right-of-use assets | $ 1,600,000,000 |  |  |
Operating lease, liability | 1,600,000,000 |  |  |
Tax effects to retained earnings | 15,000,000.0 |  |  |
Deferred rent | 82,900,000 |  |  |
Deferred lease credits | 55,000,000.0 |  |  |
Prepaid rent to the operating lease right-of-use asset | 40,400,000 |  |  |
Reduction in net operating lease right-of-use asset | 1,400,000,000 |  |  |
Accounting Standards Update 2016-02 | Cumulative Effect, Period of Adoption, Adjustment |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Net increase (decrease) to opening retained earnings due to cumulative impact of adoption | $ (44,400,000) |  |  |
Accounting Standards Update 2016-13 |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Change in accounting principle, accounting standards update, adopted |  | true |  |
Change in accounting principle, accounting standards update, adoption date |  | Feb. 02, 2020 |  |
Change in accounting principle, accounting standards update, immaterial effect |  | true |  |

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