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LEASES (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 26, 2020
Dec. 28, 2019
Lessee, Lease, Description [Line Items]    
Lease renewal term 5 years  
Operating lease, not yet commenced, first year annual cash expense $ 4,000  
Operating lease not yet commenced, annual increase (percent) 2.00%  
Operating lease not yet commenced, lease term 25 years  
Impairment of right-of-use asset   $ 12,063
After tax adjustment to retained earnings $ 1,182,062 1,144,338
Minimum    
Lessee, Lease, Description [Line Items]    
Remaining lease term 1 year  
Maximum    
Lessee, Lease, Description [Line Items]    
Remaining lease term 15 years  
Accounting Standards Update 2016-02 [Member] | Retained earnings | Cumulative Effect, Period of Adoption, Adjustment    
Lessee, Lease, Description [Line Items]    
After tax adjustment to retained earnings   $ 8,444