Income Tax - Net Operating Loss Carryforwards (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Operating loss carryforwards
Valuation allowance	$ 20,795	$ 17,557
Change in valuation allowance	3,200
Foreign tax credits	$ 3,394	$ 3,831
Percentage of taxable income	80.00%
Period of foreign tax credit carryforwards	10 years
Federal
Operating loss carryforwards
Net operating loss carryforwards	$ 41,700
State
Operating loss carryforwards
Net operating loss carryforwards	$ 128,500