Leases - Schedule of Components of Lease Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Lease Cost [Line Items]
Net lease cost	$ 3,282	$ 3,323	$ 9,673	$ 10,053
Other, net [Member]
Lease Cost [Line Items]
Operating lease cost for subleased/assigned properties	0	0	0	469
Sublease income subleased/assigned properties	0	0	0	(405)
Occupancy [Member]
Lease Cost [Line Items]
Operating lease cost	2,941	3,274	8,934	9,929
Variable lease costs	$ 341	$ 49	$ 739	$ 60