v2.4.0.6

Leases (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2011 towers | Dec. 31, 2010 | Dec. 31, 2009
Property Subject to or Available for Operating Lease [Line Items] |  |  |
Weighted average remaining term of tenant leases | 9 years |  |
Maximum Current Term | 20 years |  |
Tenant Leases 2012 | $ 1,661,458,000 |  |
Tenant Leases 2013 | 1,666,996,000 |  |
Tenant Leases 2014 | 1,631,813,000 |  |
Tenant Leases 2015 | 1,575,337,000 |  |
Tenant Leases 2016 | 1,468,813,000 |  |
Tenant Leases thereafter | 9,185,611,000 |  |
Total tenant leases | 17,190,028,000 |  |
Percentage of wireless infrastructure, office space and equipment that is on land that has non-cancelable operating leases | 71.00% |  |
Number of towers located on space that the company manages | 600 |  |
Operating Leases, Owned Land Under Tower, Expiration Term | 20 years |  |
Operating Leases, Leased Land Under Tower, Expiration Term | 10 years |  |
Operating leases 2012 | 301,264,000 |  |
Operating leases 2013 | 305,278,000 |  |
Operating leases 2014 | 307,267,000 |  |
Operating leases 2015 | 308,801,000 |  |
Operating leases 2016 | 311,242,000 |  |
Operating leases thereafter | 3,907,901,000 |  |
Total operating leases | 5,441,753,000 |  |
Rental expense from operating leases | 338,300,000 | 330,100,000 | 316,200,000
Contingent rental payments | $ 56,400,000 | $ 55,100,000 | $ 53,100,000
Greater than 10 Years, Inclusive of Renewals at the Company's Option [Member] |  |  |
Property Subject to or Available for Operating Lease [Line Items] |  |  |
Percentage of site rental gross margin that is derived from wireless infrastructure where the lease for the land has a final expiration date | 89.00% |  |
Greater than 20 Years, Inclusive of Renewals at the Company's Option [Member] |  |  |
Property Subject to or Available for Operating Lease [Line Items] |  |  |
Percentage of site rental gross margin that is derived from wireless infrastructure where the lease for the land has a final expiration date | 73.00% |  |
Wireless Infrastructure [Member] |  |  |
Property Subject to or Available for Operating Lease [Line Items] |  |  |
Estimated useful life, maximum, in years | 20 |  |

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- Definition The increases or decreases in lease payments that result from changes occurring after the inception of the lease in the factors (other than the passage of time) on which lease payments are based, except that any escalation of minimum lease payments relating to increases in construction or acquisition cost of the leased property or for increases in some measure of cost or value during the construction or preconstruction period, are excluded from contingent rentals. Contingent rentals also may include amounts for which the triggering events have not yet occurred or the specified targets for which have not yet been achieved (such as sales based percentage rent), but which events are considered probable of occurring or which specified targets are considered probable of being achieved. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 40 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6452616&loc=d3e36728-112689 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 98-9 -Paragraph 17 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Contingent Rentals -URI http://asc.fasb.org/extlink&oid=6508509 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 106, 122 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 16 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 25 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=6931615&loc=d3e35050-112683 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6452660&loc=d3e36991-112694 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 + Details
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