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v3.25.2

LONG-TERM OBLIGATIONS - Offerings of Senior Notes (Details) € in Millions, $ in Millions |  |  | 6 Months Ended |  |
--- | --- | --- | --- | --- | ---
May 30, 2025 USD ($) | May 30, 2025 EUR (€) | Mar. 14, 2025 USD ($) | Jun. 30, 2025 USD ($) | Jun. 30, 2024 USD ($) | May 30, 2025 EUR (€) | Dec. 31, 2024
Debt Instrument [Line Items] |  |  |  |  |  |  |
Proceeds from issuance of senior long-term debt |  |  |  | $ 1,560.0 | $ 2,374.1 |  |
Redemption price percentage |  |  |  | 101.00% |  |  |
Maximum adjusted EBITDA |  |  |  | 3.5 |  |  |
Senior notes |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Redemption price percentage |  |  |  | 100.00% |  |  |
American Tower Corporation | Senior notes | 4.900% senior notes and 5.350% senior notes |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Proceeds from issuance of senior long-term debt |  |  | $ 988.9 |  |  |  |
American Tower Corporation | Senior notes | 4.900% senior notes |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt interest rate (as a percent) |  |  | 4.90% | 4.90% |  |  |
Aggregate principal amount |  |  | $ 650.0 |  |  |  |
American Tower Corporation | Senior notes | 5.350% senior notes |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt interest rate (as a percent) |  |  | 5.35% | 5.35% |  |  |
Aggregate principal amount |  |  | $ 350.0 |  |  |  |
American Tower Corporation | Senior notes | 2.400% senior notes |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt interest rate (as a percent) |  |  | 2.40% |  |  |  | 2.40%
American Tower Corporation | Senior notes | 3.625% senior notes |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt interest rate (as a percent) | 3.625% |  |  | 3.625% |  | 3.625% |
Aggregate principal amount | $ 567.4 |  |  |  |  | € 500.0 |
Proceeds from issuance of senior long-term debt | $ 563.7 | € 496.8 |  |  |  |  |

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