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Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Statutory U.S. federal income tax (benefit) provision	$ 2,612	$ (2,252)	$ 14,363
State income taxes, net of federal tax benefit	942	(647)	152
Tax credits and incentives	(3,316)	(2,791)	(6,297)
Foreign tax rate differential	730	90	1,347
Impact of change in enacted tax law	227	1,108	993
Change in valuation allowance	5,070	2,174	(138)
U.S. tax on foreign earnings	(347)	(519)	(3,373)
Tax impact of unconsolidated subsidiaries	1,828	(323)	(331)
Unremitted earnings on foreign subsidiaries	835	86
Compensation and benefits	358	362	(469)
Other	91	(62)	1,855
(Benefit) provision for income taxes	$ 9,030	$ (2,774)	$ 8,102

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Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to increase (decrease) from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act.

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