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Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Nov. 03, 2018	Oct. 28, 2017	Nov. 03, 2018	Oct. 28, 2017	Feb. 03, 2018
Income Taxes [Line Items]
Effective income tax rate	27.20%	37.10%	25.90%	36.90%
Corporate tax rate			21.00%
Net unrecognized tax benefits	$ 65,300,000	$ 41,200,000	$ 65,300,000	$ 41,200,000	$ 57,300,000
Accrued amounts for interest and penalties	13,800,000	$ 8,500,000	13,800,000	$ 8,500,000	$ 11,900,000
Minimum
Income Taxes [Line Items]
Possible decrease in unrecognized tax benefits that would reduce the provision for taxes on earnings	0		0
Maximum
Income Taxes [Line Items]
Possible decrease in unrecognized tax benefits that would reduce the provision for taxes on earnings	$ 23,000,000		$ 23,000,000

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Income Taxes [Line Items]

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Unrecognized Tax Benefits Net of Federal Tax Benefit

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Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit.

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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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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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