Leases - Schedule of Components of Lease Expense (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Finance lease cost:
Total	$ 3,564	$ 9,298
occupancy/equipment expense
Lessee, Lease, Description [Line Items]
Operating lease cost	3,301	9,181
occupancy expense
Finance lease cost:
Amortization of right-of-use assets	311	166
Short-term lease cost	0	1
Sub-lease income	(143)	(128)
interest expense
Finance lease cost:
Interest on lease liabilities	$ 95	$ 78

Finance lease costs.

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- Definition

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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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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 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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