v3.26.1
Derivative Instruments and Fair Value Accounting FX Hedges (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Derivative [Line Items]                
Equity, Including Portion Attributable to Noncontrolling Interest $ 1,145.7 $ 1,257.8 $ 1,145.7 $ 1,257.8 $ 1,145.7 $ 1,145.3 $ 1,299.7 $ 1,307.2
Unrealized gains/(losses) on derivative financial instruments                
Derivative [Line Items]                
Equity, Including Portion Attributable to Noncontrolling Interest 9.3   9.3     $ (2.8)    
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]                
Derivative [Line Items]                
Derivative Asset 3.4   3.4          
Derivative Liability 0.2   0.2          
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months [1] 4.5   4.5          
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Location, Statement of Income, Balance [Axis]: us-gaap:CostOfGoodsAndServicesSold                
Derivative [Line Items]                
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax (2.5) $ 2.0 (5.5) $ 6.7        
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Unrealized gains/(losses) on derivative financial instruments                
Derivative [Line Items]                
Equity, Including Portion Attributable to Noncontrolling Interest $ (4.9)   $ (4.9)          
[1] Based on the fair value of open hedges as of June 30, 2026.