Income Taxes (Schedule of Income Tax Provision (Benefit)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Current	$ (6,178)	$ 128	$ 21,205
Deferred	2,143	1,097	(2,143)
Net operating loss carryforwards	(290)	(6,793)	625
Income tax (benefit) provision	$ (4,325)	$ (5,568)	$ 19,687