Leases - Schedule of Components of Lease Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Insurance
Schedule Of Lease Expense [Line Items]
Operating lease cost		$ 900		$ 3,100
Occupancy and equipment
Schedule Of Lease Expense [Line Items]
Operating lease cost	$ 10,634	10,245	$ 27,094	30,760
Amortization on ROU assets	181	27	485	45
Interest expense
Schedule Of Lease Expense [Line Items]
Interest on lease liabilities	$ 27	$ 4	$ 70	$ 7