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Goodwill and Other Intangible Assets - Net - Other Intangible Assets, Net (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]      
Gross $ 115.3 $ 84.1  
Accumulated Amortization 51.7 52.5  
Total 63.6 31.6  
Amortization expense $ 18.5 $ 13.3 $ 10.9
Developed technology      
Finite-Lived Intangible Assets [Line Items]      
Weighted-Average Useful Life (in Years) 4 years 4 years  
Gross $ 82.2 $ 59.3  
Accumulated Amortization 38.0 32.3  
Total $ 44.2 $ 27.0  
Customer relationships      
Finite-Lived Intangible Assets [Line Items]      
Weighted-Average Useful Life (in Years) 6 years 4 years  
Gross $ 22.2 $ 24.8  
Accumulated Amortization 11.9 20.2  
Total $ 10.3 $ 4.6  
Trade name      
Finite-Lived Intangible Assets [Line Items]      
Weighted-Average Useful Life (in Years) 10 years    
Gross $ 6.1    
Accumulated Amortization 0.2    
Total $ 5.9    
Backlog      
Finite-Lived Intangible Assets [Line Items]      
Weighted-Average Useful Life (in Years) 1 year    
Gross $ 4.8    
Accumulated Amortization 1.6    
Total $ 3.2