Income Taxes Income Taxes Details 5 (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Income Taxes [Abstract]
Current deferred tax assets	$ 0	$ 1,128
Non-current deferred tax assets	23,817	18,778
Non-current deferred tax liabilities	(470,584)	(448,824)
Net deferred income tax liability	(446,767)	(428,918)
Impact of of certain tax items	43,500	16,200
Undistributed Earnings from Foreign Subsidiaries	$ 259,800	$ 259,400