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Acquisitions and Divestments - Narrative (Detail)
$ in Millions
12 Months Ended
Jul. 06, 2021
USD ($)
Feb. 03, 2020
USD ($)
Dec. 06, 2019
USD ($)
Mar. 27, 2019
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
business
Dec. 31, 2019
USD ($)
Business Acquisition [Line Items]              
Cash proceeds, net of cash divested         $ 0.0 $ 161.0 $ 37.0
Number of material acquisitions | business           0  
WeEn | Disposal Group, Disposed of by Sale, Not Discontinued Operations              
Business Acquisition [Line Items]              
Cash proceeds, net of cash divested       $ 37.0      
Voice and Audio Solutions | Disposal Group, Disposed of by Sale, Not Discontinued Operations              
Business Acquisition [Line Items]              
Disposal Group, Including Discontinued Operation, Consideration   $ 161.0          
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal   $ 110.0          
Marvell              
Business Acquisition [Line Items]              
Purchase consideration     $ 1,700.0        
Acquisition related transaction costs     $ 5.0        
Retune DSP              
Business Acquisition [Line Items]              
Purchase consideration $ 15.7