Goodwill and Other Intangible Assets (Changes in the Carrying Value of Goodwill) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Dec. 31, 2012
Finite Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 4,999,082		$ 4,822,200	[1]
Accumulated Amortization	(1,797,066)		(1,735,136)	[1]
Net Book Value	3,202,016		3,087,064	[1]
Deferred financing costs, net	69,965	[2]	49,538	[1],[2]
Other intangible assets, net	3,271,981		3,136,602	[1]
Acquired Network Location [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Value	1,753,626	[3]	1,701,188	[1],[3]
Accumulated Amortization	(738,687)	[3]	(721,135)	[1],[3]
Net Book Value	1,014,939	[3]	980,053	[1],[3]
Acquired Network Location [Member] | Maximum [Member]
Finite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	20 years
Acquired Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Value	3,188,837		3,065,979	[1]
Accumulated Amortization	(1,022,610)		(979,264)	[1]
Net Book Value	2,166,227		2,086,715	[1]
Acquired Customer Relationships [Member] | Minimum [Member]
Finite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	15 years
Acquired Customer Relationships [Member] | Maximum [Member]
Finite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	20 years
Acquired Licenses And Other Intangibles [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Value	26,180		26,079	[1]
Accumulated Amortization	(21,037)		(20,835)	[1]
Net Book Value	5,143		5,244	[1]
Acquired Licenses And Other Intangibles [Member] | Minimum [Member]
Finite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	3 years
Acquired Licenses And Other Intangibles [Member] | Maximum [Member]
Finite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	20 years
Economic Rights, TV Azteca [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Value	30,439		28,954	[1]
Accumulated Amortization	(14,732)		(13,902)	[1]
Net Book Value	$ 15,707		$ 15,052	[1]
Finite-Lived Intangible Asset, Useful Life	70 years

[1] December 31, 2012 balances have been revised to reflect purchase accounting measurement period adjustments.

[2] Deferred financing costs are amortized over the term of the respective debt instruments to which they relate using the effective interest method. This amortization is included in interest expense rather than in amortization expense.

[3] Acquired network location intangibles are amortized over the shorter of the term of the corresponding ground lease taking into consideration lease renewal options and residual value or up to 20 years, as the Company considers these intangibles to be directly related to the tower assets.