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Employee Benefit Plans (Details) - USD ($)
3 Months Ended
Mar. 25, 2020
Mar. 31, 2020
Supplemental Executive Retirement Plan    
Defined Benefit Plan Disclosure    
Accrued liability   $ 720,000
Accrued expense   $ 80,000
Pension Benefits    
Defined Benefit Plan Disclosure    
Percentage of employer match   3.00%
Defined benefit plan contributions by employer percent   6.00%
Contribution to defined benefit plan $ 500,000,000,000