Revenue from Contracts with Customers - Summary of the activity associated with deferred revenue (Detail) - USD ($) $ in Thousands	3 Months Ended
	Jul. 30, 2023		Jul. 31, 2022
Revenue from Contract with Customer [Abstract]
Beginning balance	$ 1,192	[1]	$ 520
Revenue recognized on contract liabilities	(1,087)		(821)
Payments received for services not yet rendered	921		1,669
Ending balance	$ 1,026		$ 1,368

[1] Derived from audited consolidated financial statements.