Annual report pursuant to Section 13 and 15(d)

Segments - Narrative (Details)

v3.20.4
Segments - Narrative (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Segment Reporting Information      
Goodwill impairment loss $ 86,312,000 $ 1,610,000 $ 0
Intangible asset impairment charge 0   0
Goodwill 58,282,000 144,970,000 124,952,000
Astronics AeroSat Corporation      
Segment Reporting Information      
Goodwill impairment loss   1,600,000  
Aerospace      
Segment Reporting Information      
Goodwill impairment loss 86,312,000 1,610,000  
Intangible asset impairment charge   6,200,000  
Goodwill 36,648,000 123,038,000 124,952,000
Test Systems      
Segment Reporting Information      
Goodwill impairment loss 0 0  
Goodwill 21,634,000 21,932,000 0
Operating Segments | Aerospace      
Segment Reporting Information      
Goodwill impairment loss     0
Purchased intangible impairment loss     0
Goodwill 36,600,000 123,000,000.0  
Operating Segments | Test Systems      
Segment Reporting Information      
Goodwill impairment loss     0
Purchased intangible impairment loss     $ 0
Goodwill $ 21,600,000 $ 21,900,000