Property, Equipment and Software, Net - Summary of Property, Equipment and Software (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Internally developed software	$ 97,376	$ 101,953
Leasehold improvements	35,664	35,140
Computer equipment	28,689	27,030
Purchased software	19,322	19,004
Furniture and fixtures	8,105	8,203
Construction in progress	3,997	2,761
Total property, equipment and software	193,153	194,091
Accumulated depreciation and amortization	(98,477)	(97,450)
Total property, equipment and software, net	94,676	96,641
Construction in Progress
Property, Plant and Equipment [Line Items]
Internally developed software	$ 21,600	$ 13,900

Capitalized Software Development Costs For Internal Use Software

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