Customer Financing (Detail)	3 Months Ended
	Jul. 29, 2023 USD ($) financingAgreement	Jul. 30, 2022 USD ($)	Apr. 29, 2023 USD ($)
Customer Financing [Line Items]
Maximum credit financed for equipment purchases for any one customer	$ 1,000,000
Number of customer financing contracts | financingAgreement	2
Deferred Purchase Price Receivable Transferred	$ 15,400,000
Financing contracts sold	83,873,000	$ 73,612,000
(Loss) gain on sale of financing contracts	(3,424,000)	(1,435,000)
Proceeds from Receivables sold	66,678,000	84,094,000
Cash and cash equivalents	108,573,000		$ 159,669,000
Current receivables of finance contracts not yet sold	11,933,000		77,646,000
Finance contracts receivable sold and outstanding	$ 577,518,000
Bad debt write-offs, percentage (less than)	1.00%
Unsettled Financing Arrangements
Customer Financing [Line Items]
Cash and cash equivalents	$ 24,905,000		33,072,000
Customer Finance Contracts
Customer Financing [Line Items]
(Loss) gain on sale of financing contracts	$ (8,927,000)	$ 988,000
MUFG
Customer Financing [Line Items]
Percentage of principal amount of financing contracts held as collateral (at least)	15.00%
Capacity under agreement	$ 575,000,000
Fifth Third Bank
Customer Financing [Line Items]
Percentage of principal amount of financing contracts held as collateral (at least)	15.00%
Capacity under agreement			$ 525,000,000