Quarterly report pursuant to Section 13 or 15(d)

Revenue - Revenue Disaggregated by Market (Details)

v3.19.1
Revenue - Revenue Disaggregated by Market (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 30, 2019
Mar. 31, 2018
Disaggregation of Revenue [Line Items]    
Sales $ 208,174 $ 179,059
Commercial Transport    
Disaggregation of Revenue [Line Items]    
Sales 141,778 133,050
Military    
Disaggregation of Revenue [Line Items]    
Sales 20,953 14,015
Business Jet    
Disaggregation of Revenue [Line Items]    
Sales 19,837 10,664
Other    
Disaggregation of Revenue [Line Items]    
Sales 5,933 6,871
Aerospace Segment    
Disaggregation of Revenue [Line Items]    
Sales 188,501 164,600
Semiconductor    
Disaggregation of Revenue [Line Items]    
Sales 3,354 7,060
Aerospace & Defense    
Disaggregation of Revenue [Line Items]    
Sales 16,319 7,399
Test Systems Segment    
Disaggregation of Revenue [Line Items]    
Sales $ 19,673 $ 14,459