Leases - Components of Lease Expense (Detail) - USD ($) $ in Thousands	3 Months Ended
Jul. 31, 2021	Jul. 31, 2020
Finance lease cost
Amortization of ROU assets	$ 280	$ 338
Interest on lease liabilities	24	31
Finance lease cost	304	369
Operating lease cost	13,818	13,983
Short-term lease cost	269	108
Variable lease cost	1,668	2,407
Sublease income	(231)	(80)
Total lease cost	$ 15,828	$ 16,787

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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- Definition

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.

+ References

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-Publisher FASB
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- Definition

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.

+ References

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-Publisher FASB
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- Definition

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

+ References

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- Definition

Amount of sublease income excluding finance and operating lease expense.

+ References

+ Details

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- Definition

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

+ References

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