Annual report pursuant to Section 13 and 15(d)

Leases (Narrative) (Details)

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Leases (Narrative) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 26, 2021
Dec. 27, 2020
Operating Leased Assets [Line Items]    
Operating Lease Payments, Minimum Lease Payments Excluded, Not Yet Taken Possession of Leases $ 6,500  
Lessee, Operating Lease, Term of Contract 20 years  
Deferred lease incentives   $ 200
Deferred Rent Credit $ 600 $ 2,900
Minimum    
Operating Leased Assets [Line Items]    
Initial lease term 10 years  
Lease terms renewal 10 years  
Maximum    
Operating Leased Assets [Line Items]    
Initial lease term 15 years  
Lease terms renewal 15 years