Leases - Schedule of Components of Lease Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Lease Cost [Line Items]
Net lease cost	$ 13,175	$ 13,190	$ 13,465
Other, net [Member]
Lease Cost [Line Items]
Operating lease cost for subleased/assigned properties	469	2,054	2,404
Sublease income for subleased/assigned properties	(405)	(2,079)	(2,420)
Occupancy [Member]
Lease Cost [Line Items]
Operating lease cost	13,015	13,202	13,455
Variable lease costs	$ 96	$ 13	$ 26