Quarterly report pursuant to Section 13 or 15(d)

Revenue - Revenue Disaggregated by Market (Details)

v3.19.3
Revenue - Revenue Disaggregated by Market (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 28, 2019
Sep. 29, 2018
Sep. 28, 2019
Sep. 29, 2018
Disaggregation of Revenue [Line Items]        
Sales $ 177,018 $ 212,674 $ 574,290 $ 600,339
Commercial Transport        
Disaggregation of Revenue [Line Items]        
Sales 122,212 136,692 393,721 402,539
Military        
Disaggregation of Revenue [Line Items]        
Sales 17,255 16,125 57,753 46,410
Business Jet        
Disaggregation of Revenue [Line Items]        
Sales 12,432 9,289 49,555 30,291
Other        
Disaggregation of Revenue [Line Items]        
Sales 5,803 7,473 19,461 21,143
Aerospace Segment        
Disaggregation of Revenue [Line Items]        
Sales 157,702 169,579 520,490 500,383
Semiconductor        
Disaggregation of Revenue [Line Items]        
Sales 2,219 33,596 7,815 72,061
Aerospace & Defense        
Disaggregation of Revenue [Line Items]        
Sales 17,097 9,499 45,985 27,895
Test Systems Segment        
Disaggregation of Revenue [Line Items]        
Sales $ 19,316 $ 43,095 $ 53,800 $ 99,956