Property and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 73,200	$ 68,926
Less accumulated depreciation	(59,229)	(57,131)
Property and equipment, net	13,971	11,795
Office Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	41,208	40,072
Furniture and Fixtures
Property Plant And Equipment [Line Items]
Property and equipment, gross	5,596	5,005
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 26,396	$ 23,849