v3.25.2
STOCK-BASED COMPENSATION - Stock-Based Compensation Expense (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation expense (reversal) $ 47.3 $ 44.3 $ 100.7 $ 107.1
ATC TIPL | Discontinued Operations, Disposed of by Sale        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation expense included in discontinued operations   $ 2.0 0.0 $ 4.1
Executive Vice President and President, APAC        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation expense (reversal)     $ (7.1)