Quarterly report pursuant to Section 13 or 15(d)

Acquisition - Narrative (Details)

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Acquisition - Narrative (Details) - Astronics Custom Control Concepts Inc. - USD ($)
$ in Millions
Dec. 01, 2017
Apr. 03, 2017
Custom Control Concepts LLC    
Business Acquisition [Line Items]    
Business acquisition purchase price paid in cash   $ 10.2
Cash acquired   $ 0.5
Period goodwill and purchased intangible assets are expected to be deductible for tax purposes   15 years
Telefonix, Incorporated    
Business Acquisition [Line Items]    
Business acquisition purchase price paid in cash $ 103.8  
Cash acquired $ 0.2  
Period goodwill and purchased intangible assets are expected to be deductible for tax purposes 15 years