Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Tax Disclosure [Abstract]
Income tax expense	$ 51	$ 18	$ 2,374	$ 1,271
Pre-tax income	$ 3,115	$ 6,426	$ 18,692	$ 11,255
Effective income tax rate (percent)	1.60%	0.30%	12.70%	11.30%

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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