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DEBT - Schedule of Convertible Notes (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Debt Instrument, Redemption [Line Items]    
Principal Amount $ 2,279.3 $ 2,279.3
Unamortized Debt Discounts and Issuance Costs (26.1) (29.0)
Net Carrying Amount 2,253.2 2,250.3
Fair Value 1,229.0 1,620.7
2026 Notes    
Debt Instrument, Redemption [Line Items]    
Principal Amount 204.3 204.3
Unamortized Debt Discounts and Issuance Costs (0.3) (0.6)
Net Carrying Amount 204.0 203.7
2026 Notes | Level 2:    
Debt Instrument, Redemption [Line Items]    
Fair Value 196.5 189.7
2030 Notes    
Debt Instrument, Redemption [Line Items]    
Principal Amount 1,100.0 1,100.0
Unamortized Debt Discounts and Issuance Costs (14.1) (15.8)
Net Carrying Amount 1,085.9 1,084.2
2030 Notes | Level 2:    
Debt Instrument, Redemption [Line Items]    
Fair Value 517.0 655.9
2031 Notes    
Debt Instrument, Redemption [Line Items]    
Principal Amount 975.0 975.0
Unamortized Debt Discounts and Issuance Costs (11.7) (12.6)
Net Carrying Amount 963.3 962.4
2031 Notes | Level 2:    
Debt Instrument, Redemption [Line Items]    
Fair Value $ 515.5 $ 775.1