Income Taxes - Net Operating Loss Carryforwards (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Operating loss carryforwards
Valuation allowance	$ 15,443	$ 12,493
Change in valuation allowance	3,000
Foreign tax credits	$ 3,968	$ 3,782
Percentage of taxable income	80.00%
Period of foreign tax credit carryforwards	10 years
Federal
Operating loss carryforwards
Net operating loss carryforwards	$ 30,200
State
Operating loss carryforwards
Net operating loss carryforwards	$ 124,300