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Restructuring (Restructuring Activity) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jun. 28, 2025 | Mar. 29, 2025 | Dec. 28, 2024 | Jun. 29, 2024 | Mar. 30, 2024 | Dec. 30, 2023 | Mar. 29, 2025 | Mar. 30, 2024 | Jun. 28, 2025 | Jun. 29, 2024 | Sep. 27, 2025 | Sep. 28, 2024 | Sep. 30, 2023
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  | $ 12,178 |  |  | $ 10,177 | $ 12,178 | $ 10,177 | $ 12,178 | $ 10,177 | $ 12,178 | $ 10,177 | $ 7,135
Charged to expense | $ 2,850 | $ 2,425 | 3,784 | $ 3,984 | $ 6,750 | 1,889 | 6,209 | 8,639 | 9,059 | 12,623 | 10,015 | 23,788 | 7,997
Adjustment to provision |  |  |  |  |  |  |  |  |  |  | (697) | (1,955) | (577)
Foreign currency translation |  |  |  |  |  |  |  |  |  |  | 600 | 513 | 303
Balance at end of period |  |  |  |  |  |  |  |  |  |  | 8,829 | 12,178 | 10,177
2018 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Cash payments |  |  |  |  |  |  |  |  |  |  | (400) | (399) | (359)
Balance at end of period |  |  |  |  |  |  |  |  |  |  | 474 |  |
2020 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Cash payments |  |  |  |  |  |  |  |  |  |  | (170) | (485) | (372)
Balance at end of period |  |  |  |  |  |  |  |  |  |  | 20 |  |
2022 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Cash payments |  |  |  |  |  |  |  |  |  |  | (32) | (464) | (2,304)
Balance at end of period |  |  |  |  |  |  |  |  |  |  | 192 |  |
2023 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Charged to expense |  |  |  |  |  |  |  |  |  |  | 1,972 | 3,766 | 8,574
Cash payments |  |  |  |  |  |  |  |  |  |  | (1,277) | (5,666) | (2,223)
Balance at end of period |  |  |  |  |  |  |  |  |  |  | 4,903 |  |
2024 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Charged to expense |  |  |  |  |  |  |  |  |  |  | 8,043 | 21,799 |
Non-cash charges |  |  |  |  |  |  |  |  |  |  | (1,180) | (8,275) |
Cash payments |  |  |  |  |  |  |  |  |  |  | (10,208) | (6,833) |
Balance at end of period |  |  |  |  |  |  |  |  |  |  | 3,240 |  |
Space And Defense |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  | 1,400 |  |  | 1,622 | 1,400 | 1,622 | 1,400 | 1,622 | 1,400 | 1,622 | 228
Adjustment to provision |  |  |  |  |  |  |  |  |  |  | 0 | (178) | (37)
Foreign currency translation |  |  |  |  |  |  |  |  |  |  | 171 | 0 | (9)
Balance at end of period |  |  |  |  |  |  |  |  |  |  | 2,298 | 1,400 | 1,622
Space And Defense | 2018 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Cash payments |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Space And Defense | 2020 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Cash payments |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Space And Defense | 2022 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Cash payments |  |  |  |  |  |  |  |  |  |  | 0 | 0 | (190)
Space And Defense | 2023 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Charged to expense |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 2,308
Cash payments |  |  |  |  |  |  |  |  |  |  | 0 | (1,444) | (678)
Space And Defense | 2024 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Charged to expense |  |  |  |  |  |  |  |  |  |  | 2,046 | 6,307 |
Non-cash charges |  |  |  |  |  |  |  |  |  |  | (448) | (4,907) |
Cash payments |  |  |  |  |  |  |  |  |  |  | (871) | 0 |
Military Aircraft |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  | 624 |  |  | 347 | 624 | 347 | 624 | 347 | 624 | 347 | 229
Adjustment to provision |  |  |  |  |  |  |  |  |  |  | 0 | (139) | (15)
Foreign currency translation |  |  |  |  |  |  |  |  |  |  | 0 | 0 | (1)
Balance at end of period |  |  |  |  |  |  |  |  |  |  | 0 | 624 | 347
Military Aircraft | 2018 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Cash payments |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Military Aircraft | 2020 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Cash payments |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Military Aircraft | 2022 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Cash payments |  |  |  |  |  |  |  |  |  |  | 0 | 0 | (229)
Military Aircraft | 2023 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Charged to expense |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 458
Cash payments |  |  |  |  |  |  |  |  |  |  | 0 | (208) | (95)
Military Aircraft | 2024 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Charged to expense |  |  |  |  |  |  |  |  |  |  | 0 | 3,973 |
Non-cash charges |  |  |  |  |  |  |  |  |  |  | 0 | (733) |
Cash payments |  |  |  |  |  |  |  |  |  |  | (624) | (2,616) |
Commercial Aircraft |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  | 760 |  |  | 0 | 760 | 0 | 760 | 0 | 760 | 0 | 0
Adjustment to provision |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Foreign currency translation |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Balance at end of period |  |  |  |  |  |  |  |  |  |  | 0 | 760 | 0
Commercial Aircraft | 2018 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Cash payments |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Commercial Aircraft | 2020 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Cash payments |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Commercial Aircraft | 2022 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Cash payments |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Commercial Aircraft | 2023 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Charged to expense |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Cash payments |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Commercial Aircraft | 2024 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Charged to expense |  |  |  |  |  |  |  |  |  |  | 0 | 1,237 |
Non-cash charges |  |  |  |  |  |  |  |  |  |  | 0 | 0 |
Cash payments |  |  |  |  |  |  |  |  |  |  | (760) | (477) |
Industrial |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  | $ 9,394 |  |  | $ 8,208 | $ 9,394 | $ 8,208 | $ 9,394 | $ 8,208 | 9,394 | 8,208 | 6,678
Adjustment to provision |  |  |  |  |  |  |  |  |  |  | (697) | (1,638) | (525)
Foreign currency translation |  |  |  |  |  |  |  |  |  |  | 429 | 513 | 313
Balance at end of period |  |  |  |  |  |  |  |  |  |  | 6,531 | 9,394 | 8,208
Industrial | 2018 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Cash payments |  |  |  |  |  |  |  |  |  |  | (400) | (399) | (359)
Industrial | 2020 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Cash payments |  |  |  |  |  |  |  |  |  |  | (170) | (485) | (372)
Industrial | 2022 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Cash payments |  |  |  |  |  |  |  |  |  |  | (32) | (464) | (1,885)
Industrial | 2023 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Charged to expense |  |  |  |  |  |  |  |  |  |  | 1,972 | 3,766 | 5,808
Cash payments |  |  |  |  |  |  |  |  |  |  | (1,277) | (4,014) | $ (1,450)
Industrial | 2024 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Charged to expense |  |  |  |  |  |  |  |  |  |  | 5,997 | 10,282 |
Non-cash charges |  |  |  |  |  |  |  |  |  |  | (732) | (2,635) |
Cash payments |  |  |  |  |  |  |  |  |  |  | $ (7,953) | $ (3,740) |

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- Definition Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4.b.2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 + Details
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