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Income Taxes - Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Current taxes:
Domestic	$ 2,558	$ (7,369)
Current income tax (benefit) expense	2,558	(7,369)
Deferred taxes:
Domestic	(6,897)	(9,167)
Deferred income tax (benefit) expense	(6,897)	(9,167)
Income tax benefit	(4,339)	(16,536)
Loss before income taxes
Domestic	(18,383)	(36,985)
Foreign	(755)	(2,636)
Loss before income taxes	$ 19,138	$ 39,621
Effective income tax rate (as a percent)	22.70%	41.70%
Impact of tax benefit of disposal	$ 3,332

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