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Consolidated Statements of Stockholders' Equity (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Jun. 30, 2023 | Jul. 01, 2022 | Jun. 30, 2023 | Jul. 01, 2022
Statement of Stockholders' Equity [Abstract] |  |  |  |
Foreign currency translation adjustment | $ (5,293) | $ (482) | $ 348 | $ (3,072)
Pension and retiree medical plan liability, deferred taxes | 363 | 688 | 1,022 | 2,884
Derivative gains (losses), deferred tax expense (benefit) | $ 3,637 | $ 4,115 | $ (4,680) | $ 19,350

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