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DEBT (Tables)
 6 Months Ended
Jun. 30, 2023
Debt Disclosure [Abstract]  
Schedule of Debt The following table is a summary of the 2026 Notes as of June 30, 2023 and December 31, 2022 (in millions):
June 30, 2023December 31, 2022
Principal Amount$2,012.5 $2,012.5 
Unamortized Debt Discounts and Issuance Costs(18.1)(20.7)
Net Carrying Amount $1,994.4 $1,991.8 
Fair Value (Level 2)$1,295.5 $1,041.5 
The components of interest expense related to the 2026 Notes were as follows (in millions):
Three Months Ended June 30,Six Months Ended June 30
2023202220232022
Contractual interest$6.3 $6.4 $12.6 $12.7 
Amortization of debt discounts and debt issuance costs1.3 1.2 2.6 2.4 
Interest expense$7.6 $7.6 $15.2 $15.1