Leases - Schedule of Components of Lease Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Occupancy and Equipment
Schedule Of Operating Lease Expense [Line Items]
Operating lease cost	$ 41,442	$ 43,726
Amortization on ROU assets	146	0
Occupancy and Equipment | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Insurance
Schedule Of Operating Lease Expense [Line Items]
Operating lease cost	3,500
Interest Expense
Schedule Of Operating Lease Expense [Line Items]
Interest on lease liabilities	$ 21	$ 0