Income Taxes (Balance Sheet Locations of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Current deferred income tax asset	$ 0	$ 4,888
Non-current deferred income tax asset	48,662	5,566
Current deferred income tax liability	0	(3,633)
Non-current deferred income tax liability	(2,822)	(5,893)
Net deferred income tax asset (liability)	$ 45,840	$ 928