Leases - Components of Lease Cost (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease cost	$ 14,970	$ 14,230	$ 13,000
Operating cash flows related to operating leases	14,906	14,440
Right-of-use assets obtained in exchange for new operating lease liabilities	6,418	21,857
Right-of-use assets obtained in acquisitions	$ 0	$ 4,795
Weighted-average remaining lease term	14 years	14 years
Weighted-average discount rate	2.66%	2.49%