Income Taxes (Schedule of Income Tax Assets and Liabilities Financial Position) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Current deferred tax asset	$ 28,037	$ 34,066
Non-current deferred tax liability	274,301	241,606
Net deferred tax liability	$ 246,264	$ 207,540