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Acquisitions and Divestitures - MotionDSP (Details) - USD ($)
$ in Millions
Feb. 21, 2018
Oct. 31, 2017
MotionDSP    
Business acquisition    
Cash consideration paid $ 4.8  
MotionDSP    
Equity method investment    
Purchase price of capital stock   $ 4.7
Ownership percentage   49.00%