XML 84 R73.htm IDEA: XBRL DOCUMENT v3.21.1
Supplementary Financial Information - Accrued Liabilities (Details) - USD ($)
$ in Millions
Mar. 31, 2021
Dec. 31, 2020
Offsetting [Abstract]    
Accrued expenses and other current liabilities $ 34.0 $ 27.9
Accrued payroll and employee benefits 26.2 34.7
Accrued interest 17.8 13.9
Accrued income taxes 0.6 0.6
Total accrued liabilities $ 78.6 $ 77.1