Goodwill and Other Intangible Assets (Changes in the Carrying Value of Goodwill) (Details) (USD $) In Thousands, unless otherwise specified									12 Months Ended					12 Months Ended					12 Months Ended					12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2012 Acquired Network Location [Member]		Dec. 31, 2011 Acquired Network Location [Member]		Dec. 31, 2012 Acquired Network Location [Member] Maximum	Dec. 31, 2012 Acquired Network Location [Member] Minimum	Dec. 31, 2012 Acquired Customer Base [Member]	Dec. 31, 2011 Acquired Customer Base [Member]		Dec. 31, 2012 Acquired Customer Relationships [Member] Maximum	Dec. 31, 2012 Acquired Customer Relationships [Member] Minimum	Dec. 31, 2012 Acquired Licenses And Other Intangibles [Member]	Dec. 31, 2011 Acquired Licenses And Other Intangibles [Member]		Dec. 31, 2012 Acquired Licenses And Other Intangibles [Member] Maximum	Dec. 31, 2012 Acquired Licenses And Other Intangibles [Member] Minimum	Dec. 31, 2012 Economic Rights, TV Azteca [Member]	Dec. 31, 2011 Economic Rights, TV Azteca [Member]		Dec. 31, 2012 Economic Rights, TV Azteca [Member] Maximum	Dec. 31, 2012 Economic Rights, TV Azteca [Member] Minimum
Gross Carrying Value	$ 4,800,651		$ 3,977,778	[1]	$ 1,696,922	[2]	$ 1,537,748	[1],[2]			$ 3,048,696	$ 2,387,179	[1]			$ 26,079	$ 25,949	[1]			$ 28,954	$ 26,902	[1]
Accumulated Amortization	(1,735,136)		(1,530,257)	[1]	(721,135)	[2]	(654,137)	[1],[2]			(979,264)	(843,432)	[1]			(20,835)	(20,045)	[1]			(13,902)	(12,643)	[1]
Net Book Value	3,065,515		2,447,521	[1]	975,787	[2]	883,611	[1],[2]			2,069,432	1,543,747	[1]			5,244	5,904	[1]			15,052	14,259	[1]
Deferred financing costs, net	49,538	[3]	47,532	[1],[3]
Other intangible assets, net	$ 3,115,053		$ 2,495,053	[1]
Economic rights agreement useful life, years									20 years	0 years				20 years	15 years				20 years	3 years				70 years	70 years

[1] December 31, 2011 balances have been revised to reflect purchase accounting measurement period adjustments.

[2] 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.

[3] 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.