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DEFINED BENEFIT PENSION PLAN - Fair Value Hierarchy of Benefit Plan Assets (Details) - USD ($) $ in Thousands | Sep. 29, 2024 | Sep. 24, 2023 | Sep. 25, 2022
--- | --- | --- | ---
NAV | Hedge fund investments |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets |  | $ 2,979 |
Level 1 | Hedge fund investments |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets |  | 0 |
Level 2 | Hedge fund investments |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets |  | 0 |
Level 3 | Hedge fund investments |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets |  | 0 |
Pension Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets | $ 193,192 | 210,031 | $ 211,058
Pension Plan | NAV | Cash and cash equivalents |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets | 0 | 0 |
Pension Plan | NAV | Domestic equity securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets |  | 2,252 |
Pension Plan | NAV | International equity securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets | 5,043 | 0 |
Pension Plan | NAV | Equity securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets |  | 0 |
Pension Plan | NAV | Debt securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets |  | 0 |
Pension Plan | NAV | Hedge fund investments |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets | 5,931 | 24,441 |
Pension Plan | Level 1 | Cash and cash equivalents |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets | 3,191 | 1,937 |
Pension Plan | Level 1 | Domestic equity securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets |  | 30,885 |
Pension Plan | Level 1 | International equity securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets | 0 | 7,565 |
Pension Plan | Level 1 | Equity securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets |  | 6,263 |
Pension Plan | Level 1 | Debt securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets |  | 78,740 |
Pension Plan | Level 1 | Hedge fund investments |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets | 0 | 0 |
Pension Plan | Level 2 | Cash and cash equivalents |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets | 0 | 0 |
Pension Plan | Level 2 | Domestic equity securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets |  | 0 |
Pension Plan | Level 2 | International equity securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets | 179,042 | 5,644 |
Pension Plan | Level 2 | Equity securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets |  | 0 |
Pension Plan | Level 2 | Debt securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets |  | 52,304 |
Pension Plan | Level 2 | Hedge fund investments |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets | 0 | 0 |
Pension Plan | Level 3 | Cash and cash equivalents |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets | 0 | 0 |
Pension Plan | Level 3 | Domestic equity securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets |  | 0 |
Pension Plan | Level 3 | International equity securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets | 0 | 0 |
Pension Plan | Level 3 | Equity securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets |  | 0 |
Pension Plan | Level 3 | Debt securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets |  | 0 |
Pension Plan | Level 3 | Hedge fund investments |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension assets | $ 0 | $ 0 |

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