| Component: (Network and Table) | |
|---|---|
| Network | 2404403 - Disclosure - Goodwill and Other Intangible Assets (Rollforward) (Details) (http://www.americantower.com/role/GoodwillAndOtherIntangibleAssetsRollforwardDetails) |
| Table | Schedule of Segment Reporting Information, by Segment [Table] |
| Reporting Entity [Axis] | 0001053507 (http://www.sec.gov/CIK) |
| Period [Axis] | 2013-01-01 - 2013-12-31 |
| Goodwill [Line Items] | Business Acquisition [Axis] | |||||
|---|---|---|---|---|---|---|
| MIPT Acquisition [Member] | Business Acquisition, Acquiree [Domain] | |||||
| Geographical [Axis] | Geographical [Axis] | |||||
| UNITED STATES | International [Member] | UNITED STATES | International [Member] | Geographical [Domain] | ||
| Segments [Axis] | Segments [Axis] | Segments [Axis] | Segments [Axis] | Segments [Axis] | ||
| Rental And Management [Member] | Rental And Management [Member] | Rental And Management [Member] | Rental And Management [Member] | Network Development Services [Member] | Segments [Domain] | |
Goodwill [Roll Forward] | ||||||
Goodwill, beginning balance | 2,842,643,000 1 | |||||
Additions | ||||||
Effect of foreign currency translation | ( | ( | ||||
Goodwill, ending balance | 3,729,901,000 | |||||