v3.25.2
LONG-TERM OBLIGATIONS - Key Terms of Notes (Details)
€ in Millions, $ in Millions
6 Months Ended
Jun. 30, 2025
May 30, 2025
USD ($)
May 30, 2025
EUR (€)
Mar. 14, 2025
USD ($)
Debt Instrument [Line Items]        
Redemption price percentage 101.00%      
Senior notes        
Debt Instrument [Line Items]        
Redemption price percentage 100.00%      
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 | 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