Income Taxes - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Increase in valuation allowance	$ 25,300
Deferred tax assets , Valuation allowance	$ 88,613	$ 63,317
U.S. federal statutory tax rate	21.00%
Effective income tax rate	8.80%	3.00%	(0.10%)
Unrecognized Tax Benefits	$ 0	$ 0
Domestic Tax Authority [Member]
Net operating loss carryforwards	360,300	360,300
Net operating loss carry forwards without expiry	257,400	257,400
State and Local Jurisdiction [Member]
Net operating loss carryforwards	209,400	209,400
Net operating loss carry forwards without expiry	$ 43,300	$ 43,300