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Employee Retirement and Profit Sharing Plans - Assumptions used to Determine Benefit Obligations (Details) - Pension Plan
Dec. 31, 2019
Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]    
Weighted average discount rate (as a percent) 3.35% 4.38%
Rate of compensation increase (as a percent) 3.70% 3.70%