Certain Balance Sheet Accounts - Summary of Property and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Property Plant And Equipment [Line Items]
Total property and equipment	$ 89,236	$ 98,202
Less accumulated depreciation	(66,028)	(69,957)
Total property and equipment, net	23,208	28,245
Computers and Equipment [Member]
Property Plant And Equipment [Line Items]
Total property and equipment	14,303	15,751
Computer Software [Member]
Property Plant And Equipment [Line Items]
Total property and equipment	34,903	39,858
Furniture and Fixtures [Member]
Property Plant And Equipment [Line Items]
Total property and equipment	9,745	10,896
Leasehold Improvements [Member]
Property Plant And Equipment [Line Items]
Total property and equipment	$ 30,285	$ 31,697