Net Earnings (Loss) Per Share - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Oct. 30, 2021	Jul. 31, 2021	Oct. 31, 2020	Aug. 01, 2020	Oct. 30, 2021	Oct. 31, 2020	Dec. 14, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock Repurchase Program, Authorized Amount							$ 50,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 26,669				$ 26,669
Shares Paid for Tax Withholding for Share Based Compensation					238,170
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	523,447		1,932,628		3,771,594	2,849,291
Net Income (Loss) Attributable to Parent	$ 22,528	$ (44,346)	$ 7,515	$ (46,652)	$ (21,818)	$ (39,137)
Undistributed Earnings (Loss) Available to Common Shareholders, Basic	$ (64)		$ (6)		$ 0	$ 0
Weighted Average Number of Shares Outstanding, Basic	51,666,000		48,804,000		51,570,000	48,608,000
Earnings Per Share, Basic	$ 0.43		$ 0.15		$ (0.42)	$ (0.81)
Earnings Per Share, Diluted	$ 0.41		$ 0.15		$ (0.42)	$ (0.81)
Weighted Average Number of Shares Outstanding, Basic and Diluted	51,666,000		48,804,000		51,570,000	48,608,000
Average dilutive restricted stock units	611,000		235,000		0	0
Average dilutive performance shares	0		0		0	0
Net Income (Loss) Available to Common Stockholders, Basic	$ 22,464		$ 7,509		$ (21,818)	$ (39,137)
Weighted Average Number of Shares Outstanding, Diluted	54,568,000		49,428,000		51,570,000	48,608,000
Net Income (Loss) Available to Common Stockholders, Diluted	$ 22,464		$ 7,509
Undistributed Earnings, Basic	64		6		$ 0	$ 0
Undistributed Earnings (Loss) Allocated to Participating Securities, Diluted	(61)		(6)		0	0
Net Income (Loss) Attributable to Parent, Diluted	$ 22,467		7,509		$ (21,818)	(39,137)
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	13,409,345				13,409,345
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized					3,000,000
Other Deferred Compensation Arrangements, Liability, Current and Noncurrent			224			224
Other Deferred Compensation Arrangements, Liability, Current			130			130
Other Deferred Compensation Arrangements, Liability, Classified, Noncurrent			$ 94			$ 94
Average dilutive stock options	1,910,000		147,000		0	0
Average Dilutive Performance Share Units	255,000		224,000		0	0
Average dilutive restricted shares	126,000		18,000		0	0