Income Taxes (Narratives) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Operating Loss Carryforwards
Tax benefit adjustments related to tax cuts and jobs act	$ 12
Additional tax expense from foreign tax positions, related to tax and jobs act	3,225
Tax Act, cumulative foreign earnings	65,680
Foreign earnings repatriated	3,200
Unremiited earnings of foreign subsidiary	160	$ 1,220
Deferred tax asset valuation allowance	30,707	19,553
Operating loss carryforward, valuation allowance	612
Unrecognized tax benefit that would impact effective tax rate	481
Accrued interest and penalties	$ 398	500
IRS
Operating Loss Carryforwards
Open Tax Year	2014
State and local
Operating Loss Carryforwards
Deferred tax asset valuation allowance	$ 1,253
Operating loss carryforwards	1,253	$ 1,708
Foreign tax authority | Secretariat of the Federal Revenue Bureau of Brazil
Operating Loss Carryforwards
Operating loss carryforwards	$ 1,858