Income Taxes (Details) - USD ($) $ in Millions	6 Months Ended
Aug. 01, 2020	Aug. 03, 2019	Feb. 01, 2020
Operating Loss Carryforwards [Line Items]
Effective income tax rate (as a percent)	9.90%	52.20%
Tax benefit due to deferred tax rate change related to net operating loss carrybacks	$ 3.9
Valuation allowance due to cumulative net operating losses	3.7
Aggregate accruals for uncertain tax positions, including penalties and interest	35.6		$ 34.0
Other long-term liabilities
Operating Loss Carryforwards [Line Items]
Transition tax liability	$ 19.9		$ 19.9

Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Cumulative Valuation Allowance, Amount

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Amount of uncertain tax benefits pertaining to uncertain tax positions taken in the tax returns including related accrued interest and penalties.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority noncontrolling interest income (loss), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, increase (decrease) in enacted tax rate, prior year income taxes, increase (decrease) in deferred tax asset valuation allowance, and other adjustments.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of tax liability from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act, classified as noncurrent.

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