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Goodwill and Other Intangible Assets Narrative (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Amortization of Intangible Assets $ 22.5 $ 15.7 $ 15.1
Future Amortization Expense, Year One 26.1    
Future Amortization Expense, Year Two 24.8    
Future Amortization Expense, Year Three 22.7    
Future Amortization Expense, Year Four 21.8    
Future Amortization Expense, Year Five 19.6    
Amortization Of Acquired Intangible Asset Net Of Tax 21.6 14.9 14.3
Purchased Intangibles, Net of Tax 16.3 11.2 10.8
Capitalized Computer Software, Amortization $ 40.4 $ 40.7 $ 34.4
Minimum [Member]      
Finite-Lived Intangible Assets, Useful Life, Minimum 3 years    
Maximum [Member]      
Finite-Lived Intangible Assets, Useful Life, Minimum 45 years