Income Taxes - Schedule of Income before income tax, Domestic and Foreign (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax [Line Items]
Loss from continuing operations before income taxes, equity in affiliates	$ (49,716)	$ (17,416)	$ 15,109
Domestic Tax Authority
Income Tax [Line Items]
Loss from continuing operations before income taxes, equity in affiliates	(16,661)	23,180	46,728
Foreign Tax Authority
Income Tax [Line Items]
Loss from continuing operations before income taxes, equity in affiliates	$ (33,055)	$ (40,596)	$ (31,619)