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Consolidated Statements of Stockholder's Equity (Parenthetical) - USD ($)
$ in Millions
3 Months Ended
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Statement of Stockholders' Equity [Abstract]            
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax, Attributable to Parent $ 0.4 $ 0.4 $ 0.4 $ (0.3) $ 0.7 $ 0.7