Quarterly report [Sections 13 or 15(d)]

Segment Information - Schedule of Segment Reporting Information (Details)

v3.25.3
Segment Information - Schedule of Segment Reporting Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 27, 2025
Sep. 28, 2024
Sep. 27, 2025
Sep. 28, 2024
Segment Reporting Information        
Sales $ 211,447 $ 203,698 $ 622,061 $ 586,886
Cost of Products Sold 146,936 148,474 443,874 428,580
Operating Income (Loss) 23,055 8,374 40,950 17,590
Deductions from Segment Measure of Operating Profit:        
Loss on Settlement of Debt 32,644 6,987 32,644 6,987
Interest Expense, Net of Interest Income 2,920 6,217 9,167 17,832
Loss Before Income Taxes (12,324) (5,173) (299) (8,443)
Aerospace        
Segment Reporting Information        
Sales 192,725 177,554 577,726 518,135
Test Systems Segment        
Segment Reporting Information        
Sales 18,722 26,144 44,335 68,751
Operating Segments, Excluding Intersegment Elimination | Aerospace        
Segment Reporting Information        
Sales 192,725 177,564 577,760 518,187
Operating Segments, Excluding Intersegment Elimination | Test Systems Segment        
Segment Reporting Information        
Sales 18,752 26,183 44,685 68,790
Less Inter-segment Sales | Aerospace        
Segment Reporting Information        
Sales 0 (10) (34) (52)
Less Inter-segment Sales | Test Systems Segment        
Segment Reporting Information        
Sales (30) (39) (350) (39)
Operating Segments        
Segment Reporting Information        
Operating Income (Loss) $ 31,153 $ 14,238 $ 62,523 $ 37,200
Operating Margins 14.70% 7.00% 10.10% 6.30%
Operating Segments | Aerospace        
Segment Reporting Information        
Sales $ 192,725 $ 177,554 $ 577,726 $ 518,135
Cost of Products Sold $ 132,263 $ 127,737 $ 403,890 $ 369,918
Cost of Products Sold Margins 68.60% 71.90% 69.90% 71.40%
Other Segment Items $ 29,295 $ 35,566 $ 102,366 $ 102,589
Operating Income (Loss) $ 31,167 $ 14,251 $ 71,470 $ 45,628
Operating Margins 16.20% 8.00% 12.40% 8.80%
Operating Segments | Test Systems Segment        
Segment Reporting Information        
Sales $ 18,722 $ 26,144 $ 44,335 $ 68,751
Cost of Products Sold $ 14,673 $ 20,737 $ 39,984 $ 58,662
Cost of Products Sold Margins 78.40% 79.30% 90.20% 85.30%
Other Segment Items $ 4,063 $ 5,420 $ 13,298 $ 18,517
Operating Income (Loss) $ (14) $ (13) $ (8,947) $ (8,428)
Operating Margins (0.10%) 0.00% (20.20%) (12.30%)
Corporate Expenses and Other        
Deductions from Segment Measure of Operating Profit:        
Corporate Expenses and Other $ 7,913 $ 6,207 $ 21,011 $ 20,824