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Leases - Components of Lease Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2022	Oct. 31, 2021
Finance lease cost
Amortization of ROU assets	$ 365	$ 257	$ 738	$ 537
Interest on lease liabilities	46	21	94	45
Finance lease cost	411	278	832	582
Operating lease cost	12,203	13,457	24,618	27,275
Short-term lease cost	270	213	433	482
Variable lease cost	1,583	3,431	4,238	5,099
Impairment of right of use assets	0	7,392	0	7,392
Sublease income	(738)	(228)	(1,245)	(459)
Total lease cost	$ 13,729	$ 24,543	$ 28,876	$ 40,371

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Finance lease costs.

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Amount of interest expense on finance lease liability.

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Amount of amortization expense attributable to right-of-use asset from finance lease.

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Amount of lease cost recognized by lessee for lease contract.

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Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

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Amount of loss from impairment of right-of-use asset from operating lease.

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Amount of short-term lease cost, excluding expense for lease with term of one month or less.

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Amount of sublease income excluding finance and operating lease expense.

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Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

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