Property and Equipment, Net - Schedule of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 199,862	$ 182,761
Less accumulated depreciation	(97,306)	(86,627)
Property and equipment, net	102,556	96,134
Computer Equipment and Purchased Software [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	16,436	15,524
Employee Related Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	38,121	32,230
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	19,985	20,180
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	99,166	90,070
Internal Use Software [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	25,771	20,616
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 383	$ 4,141