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Income Taxes - Additional Information (Detail) - USD ($) $ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
Nov. 04, 2018 | Feb. 02, 2019 | Nov. 03, 2018 | Feb. 03, 2018 | Jan. 28, 2017 | Jan. 30, 2016
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |
Statutory tax rate | 21.00% | 21.00% | 23.40% | 35.00% | 35.00% |
Decrease in deferred tax liability |  | $ 11.0 |  |  |  |
Net impact on remeasurement of US deferred tax assets and liabilities |  | 64.7 |  |  |  |
Foreign capital loss carry forward |  | 13.9 |  | $ 12.0 |  |
Capital loss carryforwards |  | 13.9 |  | 12.0 |  |
Change in valuation allowance |  | 1.9 |  |  |  |
Unrecognized tax benefits |  | 18.1 |  | 12.0 | $ 12.0 | $ 11.4
Increase resulting from settlements with taxing authorities |  | 19.5 |  |  |  |
Accrued interest related to unrecognized tax benefits |  | 3.2 |  |  |  |
Accrued penalties |  | 0.7 |  |  |  |
Domestic Tax Authority |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |
Net operating loss carry forwards |  | 124.7 |  |  |  |
Capital loss carryforwards |  | 3.0 |  |  |  |
Internal Revenue Service (IRS) |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |
Net operating loss carry forwards |  | 32.1 |  |  |  |
Foreign Tax Authority |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |
Net operating loss carry forwards |  | 13.4 |  |  |  |
Deferred tax assets |  | 13.7 |  |  |  |
Foreign capital loss carry forward |  | $ 11.6 |  | $ 12.0 |  |
Bermuda |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |
Statutory tax rate |  | 0.00% |  |  |  |

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- Definition Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, Deferred Tax Asset, Provisional Income Tax Expense + References No definition available. + Details
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