Leases - Summary of Right-of-Use Assets and Lease Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Assets
Operating right-of-use assets	$ 16,356	$ 17,117
Liabilities
Operating lease liabilities, current	1,164	863
Operating lease liabilities, non-current	16,731	17,430
Total lease liabilities	$ 17,895	$ 18,293