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Employee Benefit Plans - Plans with Accumulated Benefit Obligations in Excess of Plan Assets (Details) - Pension benefits - USD ($)
$ in Thousands
Dec. 28, 2019
Dec. 29, 2018
United States    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Accumulated benefit obligation $ 0 $ 29,715
Fair value of plan assets 0 28,729
Foreign Plan    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Accumulated benefit obligation 2,408 2,307
Fair value of plan assets $ 0 $ 0