Income Taxes - Narrative (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]
Income tax expense (benefit)	$ 225	$ 1,437	$ 400	$ 1,958
Pre-tax loss from continuing operations	$ (8,529)	$ (9,950)	$ (16,707)	$ (15,612)
Effective tax rate (as a percent)	2.60%	14.40%	2.40%	12.50%