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Retirement Plans - Amounts Recorded on the Balance Sheet (Details) - USD ($) $ in Thousands | Sep. 28, 2025 | Sep. 29, 2024
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Retirement Benefits [Abstract] |  |
Fair value of plan assets | $ 43,553 | $ 46,815
Benefit obligation | (34,901) | (39,722)
Net surplus | $ 8,652 | $ 7,093

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