Quarterly report pursuant to Section 13 or 15(d)

Acquisitions - Narrative (Details)

v3.10.0.1
Acquisitions - Narrative (Details) - USD ($)
$ in Thousands
9 Months Ended
Dec. 01, 2017
Apr. 03, 2017
Sep. 29, 2018
Sep. 30, 2017
Business Acquisition [Line Items]        
Consideration transferred     $ 0 $ 10,199
Custom Control Concepts LLC | Astronics Custom Control Concepts Inc.        
Business Acquisition [Line Items]        
Consideration transferred   $ 10,200    
Cash acquired   $ 500    
Period goodwill and purchased intangible assets are expected to be deductible for tax purposes   15 years    
Telefonix, Incorporated | Astronics Custom Control Concepts Inc.        
Business Acquisition [Line Items]        
Consideration transferred $ 103,800      
Cash acquired $ 200      
Period goodwill and purchased intangible assets are expected to be deductible for tax purposes 15 years