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NONCONTROLLING INTERESTS - Narrative (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 48 Months Ended
Aug. 31, 2022
Mar. 31, 2025
Aug. 31, 2026
Dec. 31, 2021
Stonepeak        
Noncontrolling Interest [Line Items]        
Dividends declared for common stock   $ 17.3    
Preferred Stock | Stonepeak        
Noncontrolling Interest [Line Items]        
Accrued dividends   $ 11.4    
U.S. | Data Centers        
Noncontrolling Interest [Line Items]        
Stock conversion period 4 years      
U.S. | Data Centers | Common Stock        
Noncontrolling Interest [Line Items]        
Percentage of ownership after transaction (as a percent)   71.00%    
U.S. | Data Centers | Common Stock | Forecast        
Noncontrolling Interest [Line Items]        
Percentage of ownership after transaction (as a percent)     64.00%  
Kirtonkhola Tower Bangladesh Limited        
Noncontrolling Interest [Line Items]        
Percentage of interests acquired (as a percent)       51.00%
Stonepeak | Preferred Stock        
Noncontrolling Interest [Line Items]        
Dividends declared   $ 11.4    
ATC Europe        
Noncontrolling Interest [Line Items]        
Controlling ownership interest percentage (as a percent)   52.00%    
ATC Europe | CDPQ        
Noncontrolling Interest [Line Items]        
Noncontrolling owner ownership percentage (as a percent)   30.00%    
ATC Europe | Allianz        
Noncontrolling Interest [Line Items]        
Noncontrolling owner ownership percentage (as a percent)   18.00%    
France | ATC Europe        
Noncontrolling Interest [Line Items]        
Controlling ownership interest percentage (as a percent)   100.00%    
Germany        
Noncontrolling Interest [Line Items]        
Noncontrolling owner ownership percentage (as a percent)   13.00%    
Germany | ATC Europe        
Noncontrolling Interest [Line Items]        
Controlling ownership interest percentage (as a percent)   87.00%    
Spain        
Noncontrolling Interest [Line Items]        
Noncontrolling owner ownership percentage (as a percent)   17.00%    
Spain | ATC Europe        
Noncontrolling Interest [Line Items]        
Controlling ownership interest percentage (as a percent)   83.00%    
Kirtonkhola Tower Bangladesh Limited | Confidence Group        
Noncontrolling Interest [Line Items]        
Noncontrolling owner ownership percentage (as a percent)       49.00%
Stonepeak | U.S. | Data Centers        
Noncontrolling Interest [Line Items]        
Preferred stock, dividend rate (as a percent)   5.00%    
Preferred stock, conversion ratio   1    
Stonepeak | U.S. | Data Centers | Common Stock        
Noncontrolling Interest [Line Items]        
Noncontrolling owner ownership percentage (as a percent)   29.00%    
Stonepeak | U.S. | Data Centers | Common Stock | Forecast        
Noncontrolling Interest [Line Items]        
Noncontrolling owner ownership percentage (as a percent)     36.00%  
Stonepeak | U.S. | Data Centers | Preferred Stock        
Noncontrolling Interest [Line Items]        
Noncontrolling owner ownership percentage (as a percent)   100.00%