Annual report pursuant to Section 13 and 15(d)

Restructuring, Impairment and Other Charges Narrative (Details)

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Restructuring, Impairment and Other Charges Narrative (Details) - USD ($)
3 Months Ended 12 Months Ended
Dec. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Restructuring Cost and Reserve [Line Items]        
Restructuring, settlement and impairment provisions   $ 28,836,000    
Impairment Loss   1,610,000 $ 0  
Equity Investment Other Than Temporary Impairment   5,000,000 $ 0 $ 0
Aerospace        
Restructuring Cost and Reserve [Line Items]        
Restructuring, settlement and impairment provisions $ 28,800,000      
Impairment Loss   1,610,000    
Astronics AeroSat Corporation        
Restructuring Cost and Reserve [Line Items]        
Impairment Loss   $ 1,600,000