Quarterly report pursuant to Section 13 or 15(d)

Revenue - Disaggregated Revenue by Market (Details)

v3.10.0.1
Revenue - Disaggregated Revenue by Market (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Sep. 29, 2018
Sep. 30, 2017
Disaggregation of Revenue [Line Items]        
Sales $ 212,674 $ 149,636 $ 600,339 $ 453,146
Commercial Transport        
Disaggregation of Revenue [Line Items]        
Sales 136,692 98,821 402,539 306,898
Military        
Disaggregation of Revenue [Line Items]        
Sales 16,125 15,365 46,410 46,297
Business Jet        
Disaggregation of Revenue [Line Items]        
Sales 9,289 10,592 30,291 28,844
Other        
Disaggregation of Revenue [Line Items]        
Sales 7,473 3,885 21,143 12,998
Aerospace Segment        
Disaggregation of Revenue [Line Items]        
Sales 169,579 128,663 500,383 395,037
Semiconductor        
Disaggregation of Revenue [Line Items]        
Sales 33,596 6,632 72,061 18,343
Aerospace & Defense        
Disaggregation of Revenue [Line Items]        
Sales 9,499 14,341 27,895 39,766
Test Systems Segment        
Disaggregation of Revenue [Line Items]        
Sales $ 43,095 $ 20,973 $ 99,956 $ 58,109