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Acquisitions (Schedule Of Acquisition Capital Expenditures) (Details) (USD $) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Acquisitions [Abstract] |  |  |  |  |  |  |  |
Towers and related intangible assets | $ 71,688,000 |  | $ 80,326,000 |  | $ 1,019,733,000 |  | $ 311,191,000 |
Ground lease land purchases | 9,586,000 | [1] | 11,320,000 | [1] | 29,015,000 | [1] | 35,864,000 | [1]
Total cash acquisition capital expenditures | 81,274,000 |  | 91,646,000 |  | 1,048,748,000 |  | 347,055,000 |
Ground lease extensions | $ 2,700,000 |  | $ 2,800,000 |  | $ 7,800,000 |  | $ 7,600,000 |
[1] | In addition, the Company paid $2.7 million and $2.8 million for ground lease extensions and term easements during the three months ended September 30, 2014 and 2013, respectively, and $7.8 million and $7.6 million for ground lease extensions during the nine months ended September 30, 2014 and 2013, respectively. The Company recorded these amounts in prepaid rent on its Consolidated Balance Sheets.

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- Definition Ground lease land purchases. + References No definition available. + Details
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- Definition Towers and related intangible assets acquisitions. + References No definition available. + Details
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- Details
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- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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