Annual report pursuant to Section 13 and 15(d)

FAIR VALUE MEASUREMENTS - Narrative (Details)

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FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($)
3 Months Ended 12 Months Ended
Sep. 28, 2019
Dec. 28, 2019
Dec. 29, 2018
Dec. 30, 2017
Jun. 29, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Total long-term debt   $ 913,269,000      
Fair values and undiscounted cash flows         $ 49,000,000.0
Non-cash impairment of intangible asset $ 32,600,000 32,636,000 $ 0 $ 0  
Level 2          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Long-term debt, fair values   $ 906,100,000