Leases - Components of Lease Expense (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2022	Jan. 31, 2021
Finance lease cost
Amortization of ROU assets	$ 248	$ 296	$ 785	$ 951
Interest on lease liabilities	19	29	64	90
Finance lease cost	267	325	849	1,041
Operating lease cost	13,013	14,199	40,288	42,209
Short-term lease cost	279	113	761	325
Variable lease cost	2,820	3,157	7,919	8,349
Lease impairment cost			7,392
Sublease income	(283)	(186)	(742)	(461)
Total lease cost	$ 16,096	$ 17,608	$ 56,467	$ 51,463

Finance lease costs.

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- Definition

Finance lease costs.

+ References

No definition available.

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- Definition

Amount of interest expense on finance lease liability.

+ References

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

+ References

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- Definition

Amount of lease cost recognized by lessee for lease contract.

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-Publisher FASB
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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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- Definition

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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- Definition

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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