Income Taxes (Summary of Effective Income Tax Rate For Continuing Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income tax expense (benefit) at federal statutory rate	$ 14,116	$ (5,260)	$ 15,121
Federal statutory rate	21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation - U.S. Tax on Foreign Branch Income	$ (5,667)	$ 1,409	$ 16,029
Effective Income Tax Rate Reconciliation - U.S. Tax on Foreign Branch Income - Percentage	(8.40%)	(5.60%)	22.30%
State taxes, net of federal income tax benefit	1.40%	1.50%	1.50%
Non-deductible expenses	1.60%	(0.80%)	0.90%
Effective Income Tax Rate Reconciliation, Tax Credit, Amount	$ 7,019	$ 4,787	$ (1,999)
Effective Income Tax Rate Reconciliation, Tax Credit, Percent	(10.40%)	19.10%	(2.80%)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount	$ 1,053	$ 208	$ 637
Foreign rate differences	12.30%	(18.20%)	2.90%
effective income tax rate reconciliation, valuation allowance due to foreign losses	$ 0	$ 0	$ (14,350)
Effective Income Tax Rate Reconciliation, Valuation Allowance Due To Foreign Losses And Impairments, Percentage	0.00%	0.00%	(19.90%)
Effective Income Tax Rate Reconciliation Amount - FDII	$ 0	$ 0	$ (319)
Effective Income Tax Rate Reconciliation Percent - FDII	0.00%	0.00%	(0.40%)
Effective Income Tax Rate Reconciliation, Valuation Allowance Due To Foreign Losses, Percentage	(8.10%)	(0.20%)	0.10%
Research and development tax credit	(1.40%)	2.50%	(0.70%)
Changes in estimates related to prior year tax provision	(0.60%)	9.90%	(0.20%)
Effective Income Tax Rate Reconciliation Capital Loss Carryforwards Valuation Allowance, Amount	$ (5,415)	$ 52	$ 60
Effective Income Tax Rate Reconciliation, Tax Settlement, Other, Amount	$ 202	$ (58)	$ (2,543)
Effective Income Tax Rate Reconciliation, Tax Settlement, State and Local, Percent	0.30%	0.20%	(3.50%)
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount	$ (928)	$ (633)	$ (523)
Changes in estimates related to prior year tax provision	(383)	(2,472)	(135)
State taxes, net of federal income tax benefit	933	(373)	1,050
Foreign rate differences	8,269	4,554	2,247
Income tax expense (benefit) at effective income tax rate	(9,284)	8,213	(13,545)
Effective Income Tax Rate Reconciliation, Deduction, Dividends, Amount	$ (109)	$ (52)	$ (1,016)
Effective Income Tax Rate Reconciliation, Deduction, Dividend, Percent	(0.20%)	0.20%	(1.40%)
Income tax expense (benefit) at effective income tax rate	$ 9,284	$ (8,213)	$ 13,545
Effective Income Tax Rate Reconciliation, Deduction, Percent	13.80%	32.80%	18.80%
Income Taxes [Line Items]
Effective Income Tax Rate Reconciliation, Tax on Prodepe tax incentive	$ 2,858	$ (801)	$ (714)
Effective Income Tax Rate Reconciliation, Tax on Prodepe tax incentive, percent	4.30%	3.20%	(1.00%)
Income tax rate reconciliation, Foreign currency translation variation on intercompany loans, percent	2.00%	0.00%	0.00%
Income tax rate reconciliation, Foreign currency translation variation on intercompany loans, amount	$ 1,374	$ 0	$ 0