Net Earnings (Loss) Per Share - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Aug. 01, 2020	Jul. 27, 2019	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
Shares Paid for Tax Withholding for Share Based Compensation	178,669
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	2,665,779	3,746,663
Net Income (Loss) Attributable to Parent	$ (46,652)	$ (32,155)
Weighted Average Number of Shares Outstanding, Basic	48,411,000	47,582,000
Earnings Per Share, Basic	$ (0.96)	$ (0.68)
Earnings Per Share, Diluted	$ (0.96)	$ (0.68)
Weighted Average Number of Shares Outstanding, Basic and Diluted	48,411,000	47,582,000