Revenue Recognition - Contract with Customer, Contract Asset, Contract Liability, and Receivable (Details) - USD ($) $ in Thousands	9 Months Ended
	Jan. 31, 2026	Apr. 26, 2025
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contract assets	$ 48,314	$ 41,169
Contract liabilities - current	65,847	69,050
Contract liabilities - noncurrent	19,985	$ 18,421
Dollar Change
Contract assets	7,145
Contract liabilities - current	(3,203)
Contract liabilities - noncurrent	$ 1,564
Percent Change
Contract assets	17.40%
Contract liabilities - current	(4.60%)
Contract liabilities - noncurrent	8.50%
Service-type Warranty Contracts
Changes in Unearned Service-Type Warranty Contract [Roll Forward]
Balance at beginning of period	$ 35,129
New contracts sold	41,342
Less: reductions for revenue recognized	(38,362)
Foreign currency translation and other	(77)
Balance at ending of period	$ 38,032