Property and Equipment, Net - Schedule of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 254,762	$ 248,687
Less accumulated depreciation	(151,400)	(145,356)
Property and equipment, net	103,362	103,331
Computer Equipment and Purchased Software [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	16,394	16,395
Employee Related Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	50,697	50,018
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	20,502	20,666
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	112,336	112,714
Internal Use Software [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	54,717	$ 48,894
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 116