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Condensed Consolidated Statements of Income and Comprehensive Income (Parenthetical) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Income Statement [Abstract]        
Derivative instruments, income tax expense (benefit) $ (2.9) $ (7.2) $ 2.7 $ 0.2