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Income Taxes (Income Tax Rate Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Income tax benefit at the statutory rate	$ (17,222)	$ (23,052)
State taxes, net of federal tax benefit	22	(4,190)
Non-U.S. operations	(7,594)	625
Domestic incentives	(264)	(264)
Prior year federal, non-U.S. and state tax	(7,183)	(1,827)
Nondeductible expenses	1,624	2,053
U.S. CAREs Act	113	(15,981)
Valuation allowance	31,079	25,349
Other	67	4,406
Income tax expense (benefit)	$ 642	$ (12,881)
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Income tax benefit at the statutory rate	(21.00%)	(21.00%)
State taxes, net of federal tax benefit	0.00%	(3.80%)
Non-U.S. operations	(9.30%)	0.60%
Domestic incentives	(0.30%)	(0.20%)
Prior year federal, non-U.S. and state tax	(8.80%)	(1.70%)
Nondeductible expenses	2.00%	1.90%
U.S. CAREs Act	0.10%	(14.60%)
Valuation allowance	37.90%	23.10%
Other	0.20%	4.00%
Income tax benefit	0.80%	(11.70%)

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