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Consolidated Statements of Income and Comprehensive Income (Parenthetical) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Income Statement [Abstract]        
Derivative instruments, income tax expense (benefit) $ 2.1 $ 2.8 $ 2.3 $ 2.4