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SUBSEQUENT EVENTS (Details) € in Millions | Apr. 03, 2025 EUR (€) | Apr. 01, 2025 USD ($) | Apr. 04, 2025 USD ($) | Mar. 31, 2025 USD ($) | Dec. 31, 2024 USD ($)
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American Tower Corporation |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Long-term debt |  |  |  | $ 34,533,400,000 | $ 34,174,900,000
American Tower Corporation | 1.375% senior notes | Senior notes |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Debt interest rate (as a percent) |  |  |  | 1.375% |
Long-term debt |  |  |  | $ 540,800,000 | $ 517,300,000
Subsequent Event | American Tower Corporation | 1.375% senior notes | Senior notes |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Debt interest rate (as a percent) | 1.375% |  |  |  |
Debt repaid | € | € 500.0 |  |  |  |
Long-term debt |  |  | $ 0 |  |
Data Center Facility, Denver Colorado | Subsequent Event |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Total consideration |  | $ 180,000,000 |  |  |

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