Income Taxes - Changes in Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning unrecognized tax benefits	$ 314	$ 1,165
Additions for tax positions taken in the prior year	948	30
Reductions for tax positions taken in prior years	(219)	(881)
Ending unrecognized tax benefits	$ 1,043	$ 314