Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ 175	$ 521
Pre-tax loss from continuing operations	$ (8,178)	$ (5,662)
Effective tax rate (as a percent)	2.13989%	9.20%