Other Assets (Amortization Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Cost of Sales [Member]
Other Assets [Line Items]
Amortization of Other Assets	$ 10,834	$ 10,061	$ 33,121	$ 24,452
Selling, General and Administrative Expenses [Member]
Other Assets [Line Items]
Amortization of Other Assets	26,792	9,114	81,323	13,888
Other Assets [Member]
Other Assets [Line Items]
Amortization of Other Assets	$ 37,626	$ 19,175	$ 114,444	$ 38,340