Debt and Other Obligations Contractual Maturities (Details) - USD ($) $ in Thousands		Mar. 31, 2017	Dec. 31, 2016
Contractual Maturities [Abstract]
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year		$ 87,221
Long-term Debt, Maturities, Repayments of Principal in Year Two		111,470
Long-term Debt, Maturities, Repayments of Principal in Year Three		164,485
Long-term Debt, Maturities, Repayments of Principal in Year Four		152,764
Long-term Debt, Maturities, Repayments of Principal in Year Five		1,822,635
Long-term Debt, Maturities, Repayments of Principal after Year Five		11,244,908
Debt Instrument, Unamortized Adjustments		90,510
Debt and Capital Lease Obligations	[1]	13,492,973	$ 12,171,142
Long-term Debt, Gross		$ 13,583,483

[1] Balances reflect debt issuance costs as a direct reduction from the respective carrying amounts of debt, with the exception of debt issuance costs associated with the Company's revolving credit facilities. See note 2.