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Revenue Recognition - Contract with Customer, Contract Asset, Contract Liability, and Receivable (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2022	May 01, 2021
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contract assets	$ 41,687	$ 32,799
Contract liabilities - current	90,393	64,495
Contract liabilities - non-current	10,998	10,720
Service-type Warranty Contracts
Changes in Unearned Service-Type Warranty Contract [Roll Forward]
Balance at beginning of year	24,590	24,490
New contracts sold	42,619	35,623
Less: reductions for revenue recognized	(40,614)	(36,723)
Foreign currency translation and other	(249)	1,200
Balance at end of year	$ 26,346	$ 24,590

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