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FAIR VALUE - Debt Instruments (Details) - Senior Notes - USD ($) $ in Thousands | Dec. 26, 2020 | Dec. 28, 2019
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2026 Senior Notes | Book Value |  |
Debt Instrument [Line Items] |  |
Value of debt instruments | $ 500,000 | $ 500,000
2026 Senior Notes | Fair Value |  |
Debt Instrument [Line Items] |  |
Value of debt instruments | 523,100 | 537,500
2028 Senior Notes | Book Value |  |
Debt Instrument [Line Items] |  |
Value of debt instruments | 500,000 | 500,000
2028 Senior Notes | Fair Value |  |
Debt Instrument [Line Items] |  |
Value of debt instruments | $ 523,750 | $ 510,000

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- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611 + Details
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