Income Taxes (Rate Reconciliation) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount			$ (276)	$ (322)
Federal Statutory Income Tax Rate			21.00%	21.00%
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount			$ (111)	$ 0
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent			8.40%	0.00%
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount			$ 3,264	$ 974
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent			(248.20%)	(63.60%)
Unrecognized Tax Benefits, Income Tax Penalties Expense			$ 2,416	$ 1,664
Effective Income Tax Rate Reconciliation, Tax Contingency, Domestic, Percent			(183.70%)	(108.60%)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount			$ 0	$ (1,267)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent			0.00%	82.70%
Subpart F Income			$ 1,595	$ 0
Subpart F Income, Percent			(121.40%)	0.00%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount			$ 164	$ (60)
Effective Income Tax Rate Reconciliation,Other Reconciling Items, Percent			(12.40%)	3.90%
Income tax expense (benefit)	$ 1,242	$ (1,553)	$ 7,052	$ 989
Effective Income Tax Rate			(536.30%)	(64.60%)