v3.26.3
Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Jun. 30, 2026
Mar. 31, 2026
Sep. 30, 2025
Jun. 30, 2025
Mar. 31, 2025
Sep. 30, 2026
Sep. 30, 2025
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]                
Beginning balance     $ 4,545.3       $ 4,545.3  
Other comprehensive income (loss) $ (21.3)     $ (29.0)     (45.7) $ 26.7
Ending balance 5,000.7           5,000.7  
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest 139.1     71.2     661.9 391.9
Accumulated Other Comprehensive Loss                
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]                
Beginning balance (362.3) $ (413.7) (340.2) (311.6) $ (355.7) $ (367.2) (340.2) (367.2)
Other comprehensive income (loss) (19.4) 51.4 (73.5) (28.8) 44.1 11.5    
Ending balance (381.7) (362.3) (413.7) (340.4) (311.6) (355.7) (381.7) (340.4)
Other Comprehensive Income (Loss), before Reclassifications, before Tax (13.8) 60.8 (70.6) (16.6) 61.1 28.8    
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax (7.5) (7.1) (7.4) (12.3) (17.1) (17.1)    
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent (21.3) 53.7 (78.0) (29.0) 44.0 11.7    
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest 1.9 (2.3) 4.5 0.1 0.1 (0.2)    
Foreign Currency Translation Adjustment                
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]                
Beginning balance (387.9) (436.1) (355.7) (344.7) (410.9) (450.2) (355.7) (450.2)
Ending balance (411.5) (387.9) (436.1) (364.2) (344.7) (410.9) (411.5) (364.2)
Other Comprehensive Income (Loss), before Reclassifications, before Tax (25.5) 50.5 (85.0) (19.6) 66.1 39.5    
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax 0.0 0.0 0.0 0.0 0.0 0.0    
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent (25.5) 50.5 (85.0) (19.6) 66.1 39.5    
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest 1.9 (2.3) 4.5 0.1 0.1 (0.2)    
Net Unrealized (Loss)/Gain On Hedges                
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]                
Beginning balance 25.6 22.3 15.3 32.9 55.0 82.8 15.3 82.8
Ending balance 29.8 25.6 22.3 23.5 32.9 55.0 29.8 23.5
Other Comprehensive Income (Loss), before Reclassifications, before Tax 11.7 10.4 14.4 3.0 (5.0) (10.7)    
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax (7.5) (7.1) (7.4) (12.3) (17.1) (17.1)    
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent 4.2 3.3 7.0 (9.4) (22.1) (27.8)    
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest 0.0 0.0 0.0 0.0 0.0 0.0    
Net Unrealized Gain/(Loss) On  Available-for-sale Securities                
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]                
Beginning balance 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2
Ending balance 0.1 0.1 0.1 0.1 0.2 0.2 $ 0.1 $ 0.1
Other Comprehensive Income (Loss), before Reclassifications, before Tax 0.0 (0.1) (0.1) (0.1) 0.0 0.0    
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax 0.0 0.0 0.0 0.0 0.0 0.0    
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent 0.0 (0.1) (0.1) (0.1) 0.0 0.0    
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest $ 0.0 $ 0.0 $ 0.0 $ 0.0 $ 0.0 $ 0.0