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LONG-TERM DEBT (Tables)
 6 Months Ended
Jun. 30, 2022
Debt Disclosure [Abstract]  
Schedule of Debt The following is a summary of the 2026 Notes as of June 30, 2022 and December 31, 2021 (in millions):
June 30, 2022December 31, 2021
Principal Amount$2,012.5 $2,012.5 
Unamortized Debt Discounts and Issuance Costs23.3 25.7 
Net Carrying Amount $1,989.2 $1,986.8 
Fair Value (Level 2)$1,184.0 $1,984.6 
The components of interest expense related to the 2026 Notes were as follows (in millions):
Three Months Ended
June 30, 2022		Six Months Ended
June 30, 2022
Contractual interest$6.4 $12.7 
Amortization of debt discounts and debt issuance costs1.2 2.4 
Interest expense$7.6 $15.1