Income Taxes - Reconciliation of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Reconciliation of Uncertain Tax Positions [Roll Forward]
Gross unrecognized tax benefits as of January 1	$ 4,022	$ 3,672
Decreases—prior year tax positions	(1,830)	0
Increases—current year tax positions	485	350
Gross unrecognized tax benefits as of December 31	$ 2,677	$ 4,022