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Other Intangible Assets, Net (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2019
Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]      
Original amount $ 113.5   $ 80.9
Accumulated amortization 52.5   42.4
Other intangible assets, net $ 61.0   38.5
Minimum      
Finite-Lived Intangible Assets [Line Items]      
Estimated useful lives of intangible assets 4 years    
Maximum      
Finite-Lived Intangible Assets [Line Items]      
Estimated useful lives of intangible assets 20 years    
Core Technology      
Finite-Lived Intangible Assets [Line Items]      
Estimated useful lives of intangible assets   8 years  
Original amount $ 82.2   55.4
Accumulated amortization 28.0   20.0
Other intangible assets, net 54.2   35.4
Trademarks and trade names      
Finite-Lived Intangible Assets [Line Items]      
Original amount 25.5   25.5
Accumulated amortization 24.0   22.4
Other intangible assets, net $ 1.5   $ 3.1
Trademarks and trade names | Minimum      
Finite-Lived Intangible Assets [Line Items]      
Estimated useful lives of intangible assets 15 years    
Trademarks and trade names | Maximum      
Finite-Lived Intangible Assets [Line Items]      
Estimated useful lives of intangible assets 20 years    
Customer relationship      
Finite-Lived Intangible Assets [Line Items]      
Estimated useful lives of intangible assets 4 years    
Original amount $ 5.8    
Accumulated amortization 0.5    
Other intangible assets, net $ 5.3