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Income Taxes (Schedule Of Income Before Taxes) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]      
U.S. operations $ 124.9 $ 64.0 $ 296.4
Non-U.S. operations 99.6 106.7 115.0
Income before income taxes $ 224.5 $ 170.7 $ 411.4