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Accumulated Other Comprehensive Loss - Schedule of Details of Comprehensive Loss (Details) - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance $ 624.5 $ 549.5
Other comprehensive (loss) income before reclassifications 141.9 (6.0)
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent 3.7 3.0
Other comprehensive income (loss) 145.6 (3.0)
Ending balance 1,190.3 771.2
Intra-entity transactions    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Intra-entity currency translation adjustments in AOCI (43.9) (3.3)
Unrecognized Pension Items    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (141.8) (146.4)
Other comprehensive (loss) income before reclassifications (0.1) (0.4)
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent 3.1 3.0
Other comprehensive income (loss) 3.0 2.6
Ending balance (138.8) (143.8)
Cumulative Translation Adjustment    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (917.1) (770.6)
Other comprehensive (loss) income before reclassifications 186.1 (6.8)
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent 0.5 0.0
Other comprehensive income (loss) 186.6 (6.8)
Ending balance (730.5) (777.4)
Unrecognized Losses/Gains on Derivative Instruments for net investment hedge/for cash flow hedge | Net Investment Hedge    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (20.7) (38.1)
Other comprehensive (loss) income before reclassifications (41.2) 1.9
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent 0.0 0.0
Other comprehensive income (loss) (41.2) 1.9
Ending balance (61.9) (36.2)
Unrecognized Losses/Gains on Derivative Instruments for net investment hedge/for cash flow hedge | Cash Flow Hedge    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance 3.7 (0.4)
Other comprehensive (loss) income before reclassifications (2.9) (0.7)
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent 0.1 0.0
Other comprehensive income (loss) (2.8) (0.7)
Ending balance 0.9 (1.1)
Accumulated Other Comprehensive Loss, Net of  Taxes    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (1,075.9) (955.5)
Ending balance $ (930.3) $ (958.5)