Summary of Significant Accounting Policies - Summary of Cash, Cash Equivalents and Restricted Cash (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents [Abstract]
Cash and cash equivalents	$ 443,707	$ 433,909
Restricted cash, included in prepaid expenses and other current assets	$ 779	$ 1,316
Restricted Cash, Current, Statement of Financial Position [Extensible Enumeration]	Prepaid expenses and other current assets	Prepaid expenses and other current assets
Total cash, cash equivalents and restricted cash	$ 444,486	$ 435,225	$ 40,925	$ 35,007