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Leases - Summary of Supplemental Cash Flow Information Related to Leases (Detail) - USD ($)
$ in Thousands
6 Months Ended
Oct. 31, 2021
Oct. 31, 2020
Cash paid for amounts included in the measurement of lease liabilities:    
Operating cash flows from operating leases $ 30,133 $ 32,321
Financing cash flows from finance leases 592 664
ROU assets obtained in exchange for lease obligations:    
Operating leases 7,208 6,000
Finance leases $ 317 $ 509