Income Taxes (Components of Income (Loss) before Taxes from Continuing Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Domestic	$ 37,316	$ 40,176	$ (87,179)
Foreign	12,667	(3,076)	2,429
Income (loss) before taxes	$ 49,983	$ 37,100	$ (84,750)