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DEBT (Tables)
 3 Months Ended
Mar. 31, 2025
Debt Disclosure [Abstract]  
Schedule of Convertible Notes and Components of Interest Expense The following table is a summary of the 2026 Notes as of March 31, 2025 and December 31, 2024 (in millions):
March 31, 2025December 31, 2024
Principal Amount$2,012.5 $2,012.5 
Unamortized Debt Discounts and Issuance Costs(9.0)(10.3)
Net Carrying Amount $2,003.5 $2,002.2 
Fair Value (Level 2)$1,599.9 $1,579.8 
The components of interest expense related to the 2026 Notes were as follows (in millions):
Three Months Ended March 31,
20252024
Contractual interest$6.3 $6.3 
Amortization of debt discounts and debt issuance costs1.3 1.3 
Interest expense$7.6 $7.6