Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies Other (Details)

v3.10.0.1
Commitments and Contingencies Other (Details) - Exar Corporation [Member] - USD ($)
$ in Millions
 20 Months Ended
Nov. 09, 2016
Jun. 30, 2018
Sep. 30, 2018
Loss Contingencies [Line Items]      
Business Combination, Indemnification Assets, Amount as of Acquisition Date $ 5.0    
Business Combination, Indemnification Assets, Period of Agreement 18 months    
Escrow Deposit     $ 0.8
Business Combination, Indemnification Agreement Term, Sales Transaction 12 months    
Business Combination, Indemnification Agreement Term, Intellectual Property 18 months    
Business Combination, Indemnification Assets, Range of Outcomes, Value, High     13.6
Intellectual Property [Member]      
Loss Contingencies [Line Items]      
Business Combination, Indemnification Assets, Range of Outcomes, Value, High     34.0
Indemnification Agreement [Member]      
Loss Contingencies [Line Items]      
Business Combination, Indemnification Assets, Range of Outcomes, Value, High     136.0
Representations and Warranties [Member]      
Loss Contingencies [Line Items]      
Business Combination, Indemnification Assets, Range of Outcomes, Value, High     $ 34.0
Exar Corporation [Member]      
Loss Contingencies [Line Items]      
Release of indemnification asset   $ 2.9  
Purchaser of iML [Member]      
Loss Contingencies [Line Items]      
Release of indemnification asset   $ 1.3