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Retirement Plans (Tables)
12 Months Ended
Dec. 26, 2020
Retirement Plans [Abstract]  
Schedule of Costs of Retirement Plans

(dollars in thousands)

2020

2019

2018

Retirement savings plan

4,949 

3,434 

3,525 

Deferred compensation plan

806 

801 

508 

Supplemental executive retirement plan

463 

498 

390 

$

6,218 

$

4,733 

$

4,423