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Income Taxes - Effective Income Tax Rate - Narrative (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 01, 2020	Nov. 03, 2019	Nov. 01, 2020	Nov. 03, 2019
Income Tax Disclosure [Abstract]
Income taxes	$ 1,613	$ 2,279	$ 5,937	$ 3,971
Effective income tax rate			109.50%	49.60%

X

- 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
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- Definition

Amount 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
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