Annual report pursuant to Section 13 and 15(d)

SEGMENTS - Narrative (Details)

v3.22.0.1
SEGMENTS - Narrative (Details) - USD ($)
3 Months Ended 12 Months Ended
Oct. 03, 2021
Mar. 28, 2020
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Segment Reporting Information          
Goodwill impairment loss $ 0   $ 0 $ 86,312,000 $ 1,600,000
Goodwill     58,282,000 58,282,000 144,970,000
Aerospace          
Segment Reporting Information          
Goodwill impairment loss   $ 86,300,000   86,312,000  
Intangible asset impairment charge         6,200,000
Goodwill     36,648,000 36,648,000 123,038,000
Test Systems          
Segment Reporting Information          
Goodwill impairment loss       0  
Goodwill     $ 21,634,000 $ 21,634,000 $ 21,932,000