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Product Warranty (Schedule Of Warranty Liability) (Details) - USD ($)
$ in Thousands
6 Months Ended
Oct. 31, 2022
Oct. 31, 2021
Product Warranties Disclosures [Abstract]    
Warranty claims period 2 months  
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]    
Beginning balance $ 6,878 $ 5,249
Accrual 19,022 9,892
Settlements (17,360) (9,198)
Ending balance $ 8,540 $ 5,943