Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Aug. 03, 2019	Aug. 04, 2018	Aug. 03, 2019	Aug. 04, 2018	Feb. 02, 2019
Income Tax Disclosure [Abstract]
Income tax expense	$ 16,665	$ 2,533	$ 28,458	$ 10,121
Effective income tax rate	20.70%	3.90%	22.20%	10.30%
Unrecognized tax benefits	$ 8,600		$ 8,600		$ 8,500
Tax expense and the effective tax rate, if recognized	7,400		7,400		$ 7,300
Exposures related to unrecognized tax benefits	$ 400		$ 400
Period of unrecognized tax benefits change			12 months

Significant change in unrecognized tax benefits is reasonably possible period.

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

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The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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