Cash and Cash Equivalents - Summary of Reconciliation of the Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020	Dec. 31, 2019
Cash And Cash Equivalents [Abstract]
Cash and cash equivalents	$ 283,199	$ 224,390
Restricted cash included in prepaid expenses and other current assets	$ 488	$ 224
Restricted Cash, Current, Asset, Statement of Financial Position [Extensible List]	Prepaid expenses and other current assets	Prepaid expenses and other current assets
Restricted cash included in other assets	$ 325	$ 0
Restricted Cash, Noncurrent, Asset, Statement of Financial Position [Extensible List]	Other assets	Other assets
Total cash, cash equivalents and restricted cash	$ 284,012	$ 224,614	$ 177,806	$ 131,683