v3.25.4
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance $ 1,896.0 $ 1,771.0 $ 1,675.9
Ending balance 2,216.3 1,896.0 1,771.0
Translation adjustments      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance (35.5) (28.1) (24.7)
Reclassification of net loss (gain) on currency forward cash flow hedges to operations (0.5) (7.4) (3.4)
Ending balance (36.0) (35.5) (28.1)
Employment benefit      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance 25.9 27.9 36.8
Net gain (loss) on interest rate swap cash flow hedges 3.7 (1.0) (5.9)
Reclassification of net loss (gain) on currency forward cash flow hedges to operations (1.4) (1.0) (3.0)
Ending balance 28.2 25.9 27.9
Accumulated other comprehensive income (loss)      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance [1] (17.6) (0.2) 12.1
Ending balance [1] (1.7) (17.6) (0.2)
Foreign currency contracts | Cash flow hedges      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance (9.4) 0.0 0.0
Net gain (loss) on interest rate swap cash flow hedges 25.9 (27.1) 0.0
Reclassification of net loss (gain) on currency forward cash flow hedges to operations (7.5) 17.7 0.0
Ending balance 9.0 (9.4) 0.0
Interest rate swaps | Cash flow hedges      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance 1.4 0.0 0.0
Net gain (loss) on interest rate swap cash flow hedges (1.7) 4.0 0.0
Reclassification of net loss (gain) on currency forward cash flow hedges to operations (2.6) (2.6) 0.0
Ending balance $ (2.9) $ 1.4 $ 0.0
[1] Accumulated other comprehensive income (loss) is net of tax. See note 13.