v3.26.1
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance $ 2,098.2 $ 1,556.8 $ 2,216.3 $ 1,896.0
Ending balance 2,479.6 1,757.9 2,479.6 1,757.9
Translation adjustments:        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance (38.2) (34.8) (36.0) (35.5)
Reclassification of net loss (gain) (1.8) 4.3 (4.0) 5.0
Ending balance (40.0) (30.5) (40.0) (30.5)
Cash flow hedge | Foreign exchange derivatives        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance (6.2) (3.1) 9.0 (9.4)
Net gain (loss) before reclassifications (8.5) 18.6 (17.6) 21.2
Reclassification of net loss (gain) 0.9 (3.4) (5.2) 0.3
Ending balance (13.8) 12.1 (13.8) 12.1
Cash flow hedge | Interest rate swap derivatives        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance (0.5) (0.7) (2.9) 1.4
Net gain (loss) before reclassifications 3.7 (1.0) 6.3 (2.6)
Reclassification of net loss (gain) (0.1) (0.6) (0.3) (1.1)
Ending balance 3.1 (2.3) 3.1 (2.3)
Employment benefit        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance 27.1 22.9 28.2 25.9
Net gain (loss) before reclassifications (0.1) (2.6) (0.2) (5.0)
Reclassification of net loss (gain) (1.0) (0.5) (2.0) (1.1)
Ending balance 26.0 19.8 26.0 19.8
Accumulated other comprehensive loss (AOCI), net of tax        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance (17.8) [1] (15.7) [2] (1.7) [1] (17.6) [2]
Ending balance $ (24.7) [1] $ (0.9) [2] $ (24.7) [1] $ (0.9) [2]
[1] Accumulated other comprehensive income (loss) is net of tax (see note 9).
[2] Accumulated other comprehensive income (loss) is net of tax (see note 9).