Leases - Components of Lease Cost (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Leases [Abstract]
Operating lease cost	$ 16,000	$ 13,700	$ 12,000
Operating cash flows related to operating leases	16,100	13,500
Right-of-use assets obtained in exchange for new operating lease liabilities	10,000	12,200
Right-of-use assets obtained in acquisitions	$ 800	$ 0
Weighted-average remaining lease term	10 years	11 years
Weighted-average discount rate	3.97%	3.81%