Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Nov. 02, 2019	Nov. 03, 2018	Nov. 02, 2019	Nov. 03, 2018	Feb. 02, 2019
Income Taxes
Income tax expense	$ 8,353	$ 4,419	$ 36,811	$ 14,540
Effective income tax rate	13.70%	18.00%	19.50%	11.80%
Unrecognized tax benefits	$ 8,300		$ 8,300		$ 8,500
Tax expense and the effective tax rate, if recognized	7,600		7,600		$ 7,300
Exposures related to unrecognized tax benefits	$ 600		$ 600
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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