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FAIR VALUE - Schedule of Fair Value of Debt (Details) - Senior Notes - USD ($) $ in Thousands | Sep. 25, 2021 | Mar. 27, 2021 | Dec. 26, 2020 | Dec. 28, 2019 | Dec. 29, 2018
--- | --- | --- | --- | --- | ---
5.5% Senior Notes due 2026 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Stated interest rate | 5.50% |  | 5.50% |  | 5.50%
5.5% Senior Notes due 2026 | Book Value |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument value | $ 0 |  | $ 500,000 |  |
5.5% Senior Notes due 2026 | Fair Value |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument value | $ 0 |  | $ 523,100 |  |
4.25% Senior Notes due 2028 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Stated interest rate | 4.25% |  | 4.25% | 4.25% |
4.25% Senior Notes due 2028 | Book Value |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument value | $ 500,000 |  | $ 500,000 |  |
4.25% Senior Notes due 2028 | Fair Value |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument value | $ 520,000 |  | $ 523,750 |  |
3.75% Senior Notes due 2029 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Stated interest rate | 3.75% | 3.75% | 3.75% |  |
3.75% Senior Notes due 2029 | Book Value |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument value | $ 500,000 |  | $ 0 |  |
3.75% Senior Notes due 2029 | Fair Value |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument value | $ 515,000 |  | $ 0 |  |
4.0% Senior Notes due 2031 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Stated interest rate | 4.00% | 4.00% | 4.00% |  |
4.0% Senior Notes due 2031 | Book Value |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument value | $ 500,000 |  | $ 0 |  |
4.0% Senior Notes due 2031 | Fair Value |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument value | $ 530,600 |  | $ 0 |  |

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