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FAIR VALUE MEASUREMENTS - Schedule of Financial Assets Measured at Fair Value (Details) - USD ($) $ in Thousands | Dec. 27, 2024 | Sep. 27, 2024 | Dec. 29, 2023
--- | --- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Rabbi trust assets | $ 28,665 | $ 29,059 | $ 25,818
Marketable securities | 6,347 | 16,541 | 33,762
Total | 35,012 | 45,600 | 59,580
Level 1 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Rabbi trust assets | 28,665 | 29,059 | 25,818
Marketable securities | 0 | 0 | 0
Total | 28,665 | 29,059 | 25,818
Level 2 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Rabbi trust assets | 0 | 0 | 0
Marketable securities | 6,347 | 16,541 | 33,762
Total | 6,347 | 16,541 | 33,762
Level 3 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Rabbi trust assets | 0 | 0 | 0
Marketable securities | 0 | 0 | 0
Total | $ 0 | $ 0 | $ 0

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