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LONG-TERM DEBT (Details) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 26, 2021 USD ($) | Sep. 26, 2021 | Dec. 27, 2020 USD ($)
Revolving Credit Facility [Line Items] |  |  |
Debt instrument, leverage ratio, threshold | 3.00 |  |
Debt instrument, leverage ratio | 0.05 |  |
Debt instrument, fixed charge coverage ratio | 67.88 |  |
Minimum |  |  |
Revolving Credit Facility [Line Items] |  |  |
Debt instrument, fixed charge coverage ratio, threshold | 1.25 |  |
Maximum |  |  |
Revolving Credit Facility [Line Items] |  |  |
Debt instrument, leverage ratio, threshold | 4.00 | 4.00 |
Revolving Credit Facility |  |  |
Revolving Credit Facility [Line Items] |  |  |
Maximum borrowing capacity | $ 300.0 |  |
Maximum borrowing capacity, subject to lender approval | 450.0 |  |
Remaining borrowing capacity | $ 293.8 |  | $ 6.1
Revolving Credit Facility | Base rate |  |  |
Revolving Credit Facility [Line Items] |  |  |
Long-term debt, additional base rate | 0.50% |  |
Revolving Credit Facility | Minimum |  |  |
Revolving Credit Facility [Line Items] |  |  |
Unused capacity, commitment fee percentage | 0.25% |  |
Revolving Credit Facility | Minimum | London Interbank Offered Rate (LIBOR) |  |  |
Revolving Credit Facility [Line Items] |  |  |
Basis spread on variable rate | 1.25% |  |
Revolving Credit Facility | Minimum | Base rate |  |  |
Revolving Credit Facility [Line Items] |  |  |
Basis spread on variable rate | 0.25% |  |
Revolving Credit Facility | Maximum |  |  |
Revolving Credit Facility [Line Items] |  |  |
Unused capacity, commitment fee percentage | 0.50% |  |
Revolving Credit Facility | Maximum | London Interbank Offered Rate (LIBOR) |  |  |
Revolving Credit Facility [Line Items] |  |  |
Basis spread on variable rate | 3.50% |  |
Revolving Credit Facility | Maximum | Base rate |  |  |
Revolving Credit Facility [Line Items] |  |  |
Basis spread on variable rate | 1.50% |  |
Swingline Loan |  |  |
Revolving Credit Facility [Line Items] |  |  |
Maximum borrowing capacity | $ 30.0 |  |
Letters of credit outstanding | 6.2 |  |
Letter of Credit |  |  |
Revolving Credit Facility [Line Items] |  |  |
Maximum borrowing capacity | $ 125.0 |  |
Letter of Credit | London Interbank Offered Rate (LIBOR) |  |  |
Revolving Credit Facility [Line Items] |  |  |
Letters of credit, additional base rate | 0.50% |  |
Letter of Credit | Minimum | London Interbank Offered Rate (LIBOR) |  |  |
Revolving Credit Facility [Line Items] |  |  |
Basis spread on variable rate | 1.00% |  |
Letter of Credit | Maximum | London Interbank Offered Rate (LIBOR) |  |  |
Revolving Credit Facility [Line Items] |  |  |
Basis spread on variable rate | 3.25% |  |

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