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STOCKHOLDERS' EQUITY (Narrative) (Details) - USD ($) shares in Thousands | 12 Months Ended | 26 Months Ended |
--- | --- | --- | ---
Dec. 27, 2020 | Dec. 29, 2019 | Dec. 30, 2018 | Dec. 27, 2020 | Oct. 31, 2018
Equity [Abstract] |  |  |  |  |
Share repurchase, authorized amount |  |  |  |  | $ 200,000,000.0
Shares repurchased under program (in shares) |  |  |  | 6,300 |
Market value of shares repurchased under program | $ 110,242,000 | $ 2,898,000 | $ 236,000 | $ 113,400,000 |

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