Income Taxes (Components of Income Tax Provision) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current:
U.S. federal	$ (8,675)	$ 1,294	$ (135)
State	2,097	451	801
Foreign	6,861	5,645	7,220
Total	283	7,390	7,886
Deferred:
U.S. federal	0	67	(1,008)
State	0	0	0
Foreign	(2,795)	(1,273)	(2,346)
Total	(2,795)	(1,206)	(3,354)
Total income tax (benefit) provision	$ (2,512)	$ 6,184	$ 4,532