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Interest Rate Swaps Schedule of Changes in AOCI Net of Tax (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 27, 2020
Jun. 29, 2019
Mar. 30, 2019
Jun. 27, 2020
Jun. 29, 2019
Dec. 28, 2019
Dec. 29, 2018
Derivative Instruments and Hedging Activities Disclosures [Line Items]              
Cumulative adjustment as a result of ASU 2017-12 adoption     2,084,880    
Cumulative adjustment as a result of ASU 2017-12 adoption     2,084,880    
Other Comprehensive Income (Loss), Net of Tax $ (1,284) $ (2,185)   $ (6,534) $ (3,649)    
Beginning Balance [Member]              
Derivative Instruments and Hedging Activities Disclosures [Line Items]              
Accumulated Other Comprehensive Income (Loss), Net of Tax           $ 199 $ 3,814
Accounting Standards Update 2017-12 [Member]              
Derivative Instruments and Hedging Activities Disclosures [Line Items]              
Cumulative adjustment as a result of ASU 2017-12 adoption       717 717  
Cumulative adjustment as a result of ASU 2017-12 adoption       717 717