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Income Taxes - Additional Information (Detail) - USD ($) $ in Millions		3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 27, 2020	Aug. 01, 2020	Aug. 03, 2019	Aug. 01, 2020	Aug. 03, 2019	Feb. 03, 2018
Income Tax Disclosure [Abstract]
U.S. federal corporate tax rate				21.00%		35.00%
CARES act of 2020, net operating loss carryback period	5 years
Effective income tax rate		28.50%	24.40%	28.80%	23.30%
Reasonably possible amount of reduction in unrecognized tax benefit over the next twelve months		$ 0.6		$ 0.6

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- Definition

CARES Act Of 2020 net operating loss carryback period.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

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

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Topic 740
-SubTopic 10
-Section S99
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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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-Publisher FASB
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-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
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