Quarterly report pursuant to Section 13 or 15(d)

Supplemental Retirement Plan and Related Post Retirement Benefits - Summary of the Components of Net Periodic Cost (Details)

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Supplemental Retirement Plan and Related Post Retirement Benefits - Summary of the Components of Net Periodic Cost (Details)
$ in Thousands
3 Months Ended
Apr. 03, 2021
USD ($)
retirement_plan
Mar. 28, 2020
USD ($)
Retirement Benefits [Abstract]    
Number of non-qualified supplemental retirement defined benefit plans | retirement_plan 2  
SERP    
Defined Benefit Plan Disclosure    
Service Cost $ 49 $ 55
Interest Cost 191 209
Amortization of Prior Service Cost 97 97
Amortization of Net Actuarial Losses 323 162
Net Periodic Cost $ 660 $ 523