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Summary of Significant Accounting Policies - Additional Information (Detail) |  |  | 12 Months Ended
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Feb. 03, 2019 USD ($) | Feb. 04, 2018 USD ($) | Feb. 01, 2020 USD ($) Store Segment | Feb. 02, 2019 USD ($) | Feb. 03, 2018 USD ($) | Jan. 28, 2017 USD ($)
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Number of reportable segments | Segment |  |  | 1 |  |  |  |
Operating lease right-of-use assets |  |  | $ 1,418,916,000 |  |  |  |
Operating lease, liability |  |  | $ 1,600,896,000 |  |  |  |
Weighted average remaining useful life, assets |  |  | 7 years 6 months |  |  |  |
Asset impairment charges |  |  | $ 66,252,000 | [1] | $ 546,000 |  |
Number of retail stores | Store |  |  | 1,000 |  |  |  |
Impairment of goodwill |  |  | $ 1,700,000 |  | 0 |  |
Definite-lived impairment charges |  |  | 0 |  | 0 | $ 0 | $ 0
Revenue related to gift card breakage |  |  | $ 9,500,000 |  | 8,900,000 | 10,100,000 |
Reward expiration period |  |  | 45 days |  |  |  |
Credit Card Reward Program Description |  |  | This Program integrates the credit card rewards program and the AEREWARDS® loyalty program into one combined customer offering. Under the Program, customers accumulate points based on purchase activity and earn rewards by reaching certain point thresholds. Customers earn rewards in the form of discount savings certificates. Rewards earned are valid through the stated expiration date, which is 45 days from the issuance date of the reward. Rewards not redeemed during the 45-day redemption period are forfeited. Additional rewards are also given for key items such as jeans and bras. |  |  |  |
Prepaid advertising expense |  |  | $ 14,500,000 |  | 12,600,000 |  |
Advertising expense |  |  | $ 151,500,000 |  | $ 143,200,000 | $ 129,800,000 |
Number of operating segments | Segment |  |  | 2 |  |  |  |
United States |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Operating lease right-of-use assets |  |  | $ 1,300,000,000 |  |  |  |
Foreign |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Operating lease right-of-use assets |  |  | 100,000,000 |  |  |  |
Retail Stores |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Asset impairment charges |  |  | $ 64,500,000 |  |  |  |
Number of retail stores | Store |  |  | 20 |  |  |  |
Impairment of operating lease ROU assets |  |  | $ 25,000,000.0 |  |  |  |
Retail Stores | Leasehold Improvements and Store Fixtures |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Asset impairment charges |  |  | $ 39,500,000 |  |  |  |
Minimum |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Definite-lived intangibles, useful life |  |  | 15 years |  |  |  |
Minimum | Available For Sale Securities |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Short term investments maturity |  |  | 3 months |  | 3 months |  |
Maximum |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Investments remaining maturity |  |  | 3 months |  |  |  |
Definite-lived intangibles, useful life |  |  | 25 years |  |  |  |
Maximum | Available For Sale Securities |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Short term investments maturity |  |  | 1 year |  | 1 year |  |
ASC 606 |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Net increase (decrease) to opening retained earnings due to cumulative impact of adoption |  | $ 200,000 |  |  |  |  |
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 |  |  |  |  |  |
Net increase (decrease) to opening retained earnings due to cumulative impact of adoption | (44,400,000) |  | $ (44,435,000) |  |  |  |
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 |  |  |  |  |  |
[1] | Fiscal 2019 asset impairment charges of $64.5 million on the assets of 20 retail stores. Of the total, $39.5 million related to the impairment of leasehold improvements and store fixtures, and $25.0 million related to the impairment of operating lease ROU assets. The Company also concluded that certain goodwill was impaired resulting in a $1.7 million charge in Fiscal 2019.

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