Debt and Other Obligations (Components of Interest Expense and Amortization of Deferred Financing Costs) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Debt and Other Obligations [Abstract]
Interest expense on debt obligations	$ 151,765	$ 126,616	$ 422,765	$ 374,363
Amortization of deferred financing costs and adjustments on long-term debt	4,882	4,601	13,973	14,522
Other	(2,501)	(1,301)	(6,336)	(3,229)
Total	$ 154,146	$ 129,916	$ 430,402	$ 385,656