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Product Warranty (Tables)
9 Months Ended
Jan. 31, 2022
Product Warranties Disclosures [Abstract]  
Schedule of Warranty Liability
The following is a reconciliation of the Company's warranty liability, which is included in other accrued expenses on the unaudited condensed consolidated balance sheets: 
 Nine Months Ended
 January 31,
(in thousands)20232022
Beginning balance at May 1$6,878 $5,249 
Accrual26,566 18,729 
Settlements(25,777)(17,821)
Ending balance at January 31$7,667 $6,157