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Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail) $ in Thousands |  |  | 6 Months Ended |
--- | --- | --- | --- | ---
Nov. 06, 2018 | Oct. 30, 2018 | Aug. 03, 2019 USD ($) | Feb. 03, 2019 USD ($)
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Stock split ratio, common stock | 2 | 2 |  |
Lease liabilities |  |  | $ 9,096,587 |
Operating lease right of use assets |  |  | $ 8,944,302 | $ 8,704,584
Accounting Standards Update 2016-02 |  |  |  |
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Lease liabilities |  |  |  | 9,000,000
Operating lease right of use assets |  |  |  | $ 8,704,584
Minimum |  |  |  |
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Operating lease term of possession previous to opening store |  |  | 30 days |
Maximum |  |  |  |
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Operating lease term of possession previous to opening store |  |  | 60 days |

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