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Supplemental Cash Flow Information
3 Months Ended
Mar. 31, 2021
Supplemental Cash Flow Elements [Abstract]  
Supplemental Cash Flow Information SUPPLEMENTAL CASH FLOW INFORMATION
Three Months Ended
March 31,
(in millions)20212020
Cash paid during the period for income taxes$— $0.2 
Cash paid for interest2.3 2.1 
Establishment of operating lease right-of-use assets and lease liabilities
Operating lease right-of-use assets$2.7 $— 
Operating lease liabilities2.7 —