Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v3.19.2
Subsequent Events (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Jul. 12, 2019
Jul. 01, 2019
Sep. 28, 2019
Dec. 31, 2018
Airfield Lighting Product Line Assets | Disposal Group, Disposed of by Sale, Not Discontinued Operations        
Subsequent Event [Line Items]        
Percentage of revenue (as a percentage)       1.00%
Airfield Lighting Product Line Assets | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Forecast        
Subsequent Event [Line Items]        
Loss on sale     $ 1.3  
Subsequent Event | Airfield Lighting Product Line Assets | Disposal Group, Disposed of by Sale, Not Discontinued Operations        
Subsequent Event [Line Items]        
Proceeds from sale $ 1.0      
Subsequent Event | Freedom Communication Technologies, Inc.        
Subsequent Event [Line Items]        
Total consideration   $ 22.0