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Summary of Significant Accounting Policies - Additional Information (Detail) |  | 12 Months Ended |  |
--- | --- | --- | --- | ---
Feb. 04, 2018 USD ($) | Feb. 02, 2019 USD ($) Segment | Feb. 03, 2018 USD ($) | Jan. 28, 2017 USD ($) | Jan. 01, 2019 USD ($) | Feb. 02, 2018 USD ($)
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Number of reportable segments | Segment |  | 1 |  |  |  |  |
Short-term investments |  | $ 92,135,000 | $ 0 |  |  |  |
Long-term investments |  |  | 0 |  |  |  |
Weighted average remaining useful life, assets |  | 8 years |  |  |  |  |
Asset impairment charges |  | $ 546,000 | 0 | $ 20,576,000 | [1] |  |
Goodwill impairment |  |  |  | 2,500,000 |  |  |
Finite-lived impairment charges |  | 0 | 0 | 0 |  |  |
Revenue related to gift card breakage |  | 8,900,000 | 10,100,000 | 9,100,000 |  |  |
Prepaid advertising expense |  | 12,600,000 |  |  |  |  | $ 6,600,000
Advertising expense |  | $ 143,200,000 | $ 129,800,000 | 124,500,000 |  |  |
Number of operating segments | Segment |  | 2 |  |  |  |  |
Minimum |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Finite lived intangibles, useful life |  | 15 years |  |  |  |  |
Maximum |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Finite lived intangibles, useful life |  | 25 years |  |  |  |  |
China and Hong Kong |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Goodwill impairment |  | $ 0 |  | 2,500,000 |  |  |
Wholly-owned Retail Stores | United Kingdom, Hong Kong and China |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Asset impairment charges |  |  |  | 7,200,000 |  |  |
Wholly-owned Retail Store and E-commerce Operations | United Kingdom, Hong Kong and China | Non-store Corporate Assets |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Asset impairment charges |  |  |  | 10,800,000 |  |  |
Retail Stores | China and Hong Kong |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Goodwill impairment |  |  |  | $ 2,500,000 |  |  |
ASU No. 2016-02 |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Assets expected to recognise |  |  |  |  |  | $ 1,200,000,000 |
Liabilities expected to recognise |  |  |  |  |  | $ 1,500,000,000 |
ASC 606 |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Net increase to opening retained earnings due to cumulative impact of adoption | $ 200,000 |  |  |  |  |  |
[1] | Non-cash impairment charges of $20.6 million for Fiscal 2016 consisted of $7.2 million for the impairment of all Company-owned retail stores in the United Kingdom, Hong Kong and China, as well as $10.8 million of impairment and restructuring charges related to non-store corporate assets that support the international retail stores and e-commerce operations and $2.5 million of goodwill impairment for the China and Hong Kong retail operations.

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