Income Taxes (Rate Reconciliation) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	$ 92	$ (698)	$ (377)	$ (276)
Federal Statutory Income Tax Rate	21.00%	21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount	$ (489)	$ (196)	$ (1,039)	$ (111)
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent	(111.60%)	5.90%	57.80%	8.40%
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount	$ (38)	$ (59)	$ (78)	$ (118)
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent	(8.70%)	1.80%	4.30%	9.00%
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	$ 229	$ (55)	$ 846	$ 3,264
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	52.30%	1.70%	(47.10%)	(248.20%)
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount	$ (83)	$ 0	$ (88)	$ 0
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Percent	(18.90%)	0.00%	4.90%	0.00%
Unrecognized Tax Benefits, Income Tax Penalties Expense	$ 1,028	$ 1,224	$ 2,043	$ 2,416
Effective Income Tax Rate Reconciliation, Tax Contingency, Domestic, Percent	234.70%	(36.80%)	(113.70%)	(183.70%)
Subpart F Income	$ 717	$ 884	$ 1,392	$ 1,595
Subpart F Income, Percent	163.70%	(26.60%)	(77.50%)	(121.40%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount	$ 9	$ 142	$ 115	$ 282
Effective Income Tax Rate Reconciliation,Other Reconciling Items, Percent	2.10%	(4.30%)	(6.40%)	(21.40%)
Income tax expense (benefit)	$ 1,465	$ 1,242	$ 2,814	$ 7,052
Effective Income Tax Rate	334.60%	(37.30%)	(156.70%)	(536.30%)