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Income Taxes , Reconciliation of Pre-Tax Income (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest [Abstract]      
Domestic $ 567.7 $ 490.6 $ 371.7
Foreign 60.7 51.1 14.3
INCOME BEFORE INCOME TAXES AND LOSS FROM EQUITY METHOD INVESTMENT $ 628.4 $ 541.7 $ 386.0