v3.26.1
Segments (Disaggregation of Operating Results) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Jun. 27, 2026
Jun. 28, 2025
Jun. 27, 2026
Jun. 28, 2025
Segment Reporting        
Net sales $ 1,116,545 $ 969,582 $ 3,268,838 $ 2,811,486
Cost of sales 769,299 696,913 2,339,797 2,034,972
Inventory write-down 0 5,839 0 7,988
Research and development 33,040 21,906 84,336 69,992
Selling, general and administrative 150,989 139,748 436,272 401,817
Other operating (income) expense 3,271 4,672 2,534 8,982
Space And Defense        
Segment Reporting        
Net sales 336,095 287,705 973,966 805,673
Cost of sales 229,334 205,751 681,545 585,030
Inventory write-down 0 0 0 449
Research and development 12,150 6,353 29,881 17,623
Selling, general and administrative 40,388 36,724 120,375 101,808
Other operating (income) expense 1,493 514 3,400 842
Military Aircraft        
Segment Reporting        
Net sales 245,164 224,662 728,064 651,931
Cost of sales 178,235 168,673 538,680 484,223
Inventory write-down 0 1,857 0 1,857
Research and development 7,448 5,439 18,738 18,385
Selling, general and administrative 23,785 30,761 75,637 82,759
Other operating (income) expense (252) (414) (1,377) (964)
Commercial Aircraft        
Segment Reporting        
Net sales 253,569 217,655 768,419 651,708
Cost of sales 188,845 167,370 608,692 514,971
Inventory write-down 0 0 0 0
Research and development 4,466 1,944 9,007 7,126
Selling, general and administrative 21,649 16,904 55,003 47,774
Other operating (income) expense 129 (588) (493) (1,302)
Industrial        
Segment Reporting        
Net sales 281,717 239,560 798,389 702,174
Cost of sales 172,885 155,119 510,880 450,748
Inventory write-down 0 3,982 0 5,682
Research and development 8,976 8,170 26,710 26,858
Selling, general and administrative 48,843 43,952 141,503 132,645
Other operating (income) expense 1,901 5,160 1,004 10,406
Corporate Segment and Other Operating Segment        
Segment Reporting        
Selling, general and administrative 10,137 6,758 27,842 24,162
Other Operating Segment        
Segment Reporting        
Selling, general and administrative $ 6,187 $ 4,649 $ 15,912 $ 12,669