Fair Value of Financial Instruments and Non-Financial Assets - Narrative (Details) (USD $)	12 Months Ended			0 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Mar. 04, 2014 Subsequent Event [Member]
Assets, Fair Value Disclosure [Abstract]
Long-term Debt, Fair Value	$ 3,906,000,000	$ 3,421,500,000
Wireless licenses, fair value	19,800,000	13,600,000
Property and equipment, impairment loss	19,847,000	13,640,000	0
Certain capitalized construction in progress, carrying value	0
Impairments and other charges, net	15,447,000	13,640,000	377,000
Equity method investment, impairment	9,200,000
Equity method investments	0	10,600,000
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent asset received from sale of equity method investment				$ 5,000,000