Leases - Summary of Right-of-Use Assets and Lease Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease right-of-use asset	$ 65,223	$ 47,924
Operating lease liabilities, current	8,323
Operating lease liabilities, long-term	70,318	$ 54,540
Total operating lease liabilities	$ 78,641