Net Earnings (Loss) Per Share - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Jul. 31, 2021	Aug. 01, 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
Shares Paid for Tax Withholding for Share Based Compensation	130,135
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	3,665,606	2,665,779
Net Income (Loss) Attributable to Parent	$ (44,346)	$ (46,652)
Weighted Average Number of Shares Outstanding, Basic	51,474,000	48,411,000
Earnings Per Share, Basic	$ (0.86)	$ (0.96)
Earnings Per Share, Diluted	$ (0.86)	$ (0.96)
Weighted Average Number of Shares Outstanding, Basic and Diluted	51,474,000	48,411,000
Net Income (Loss) Available to Common Stockholders, Basic	$ (44,346)	$ (46,652)
Weighted Average Number of Shares Outstanding, Diluted	51,474,000	48,411,000
Net Income (Loss) Available to Common Stockholders, Diluted	$ (44,346)	$ (46,652)