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CREDIT FACILITIES AND DEBT
3 Months Ended
Mar. 31, 2022
Debt Disclosure [Abstract]  
CREDIT FACILITIES AND DEBT CREDIT FACILITIES AND DEBTDebt outstanding consists of the following:
(in millions)March 31, 2022December 31, 2021
2025 Senior Secured Notes $1,250.0 $1,250.0 
2028 Senior Notes 826.5 826.5 
2025 Senior Notes 669.5 669.5 
Revolving Credit Facility900.0 900.0 
Catalyst financing arrangements 63.3 58.4 
3,709.3 3,704.4 
Less — Current debt (29.9)— 
Unamortized premium 0.4 0.5 
Unamortized deferred financing costs(29.1)(31.6)
Long-term debt$3,650.7 $3,673.3