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Employee Benefit Plans - Changes in Plans and AOCI Impacts (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 28, 2019
Dec. 28, 2019
Dec. 29, 2018
Dec. 30, 2017
Change in Projected Benefit Obligation:        
Settlement payment $ (3,839)      
Pension benefits | United States        
Change in Projected Benefit Obligation:        
Projected benefit obligation at beginning of year   $ 29,715 $ 34,757  
Service cost   0 699 $ 685
Interest cost   1,134 1,193 1,231
Actuarial loss (gain)   4,039 (2,674)  
Benefits paid   (966) (1,589)  
Plan amendment   0 1,116  
Effect of curtailment   0 (3,787)  
Settlement payment   (33,922) 0  
Currency translation   0 0  
Projected benefit obligation at end of year 0 0 29,715 34,757
Change in Plan Assets:        
Fair value of plan assets at beginning of year   28,729 31,754  
Actual return on plan assets   2,320 (1,436)  
Employer contributions   3,839 0  
Benefits paid   (966) (1,589)  
Settlement payment   (33,922) 0  
Currency translation   0 0  
Fair value of plan assets at end of year 0 0 28,729 31,754
Unfunded Status 0 0 (986)  
Accumulated Benefit Obligation at End of Year 0 0 29,715  
Current liability 0 0 (986)  
Non-current liability 0 0 0  
Unrecognized net actuarial loss 0 0 (3,205)  
Unrecognized prior service cost 0 0 0  
Total 0 0 (3,205)  
Net actuarial (loss) gain   (2,714) (48)  
Amortization of net actuarial loss   32 541  
Amortization of prior service cost   0 0  
Plan amendment   0 (1,116)  
Effect of curtailment   0 3,787  
Settlement loss   5,887 0  
Curtailment loss   0 1,116  
Currency translation   0 0  
Total   3,205 4,280  
Pension benefits | Foreign Plan        
Change in Projected Benefit Obligation:        
Projected benefit obligation at beginning of year   3,671 4,270  
Service cost   205 173 148
Interest cost   121 126 114
Actuarial loss (gain)   393 (368)  
Benefits paid   (184) (394)  
Plan amendment   0 0  
Effect of curtailment   0 0  
Settlement payment   0 0  
Currency translation   (38) (136)  
Projected benefit obligation at end of year 4,168 4,168 3,671 4,270
Change in Plan Assets:        
Fair value of plan assets at beginning of year   726 557  
Actual return on plan assets   58 38  
Employer contributions   340 528  
Benefits paid   (184) (394)  
Settlement payment   0 0  
Currency translation   33 (3)  
Fair value of plan assets at end of year 973 973 726 557
Unfunded Status (3,195) (3,195) (2,945)  
Accumulated Benefit Obligation at End of Year 3,046 3,046 2,604  
Current liability (189) (189) (58)  
Non-current liability (3,006) (3,006) (2,887)  
Unrecognized net actuarial loss (1,034) (1,034) (674)  
Unrecognized prior service cost (38) (38) (45)  
Total (1,072) (1,072) (719)  
Net actuarial (loss) gain   (402) 368  
Amortization of net actuarial loss   25 63  
Amortization of prior service cost   6 6  
Plan amendment   0 0  
Effect of curtailment   0 0  
Settlement loss   0 0  
Curtailment loss   0 0  
Currency translation   18 (19)  
Total   (353) 418  
Other Post-Retirement        
Change in Projected Benefit Obligation:        
Projected benefit obligation at beginning of year   3,672 4,704  
Service cost   4 213 175
Interest cost   149 172 170
Actuarial loss (gain)   144 (508)  
Benefits paid   (232) (157)  
Plan amendment   0 322  
Effect of curtailment   0 (1,075)  
Settlement payment   0 0  
Currency translation   5 1  
Projected benefit obligation at end of year 3,742 3,742 3,672 4,704
Change in Plan Assets:        
Fair value of plan assets at beginning of year   44 35  
Actual return on plan assets   4 2  
Employer contributions   246 164  
Benefits paid   (232) (157)  
Settlement payment   0 0  
Currency translation   2 0  
Fair value of plan assets at end of year 64 64 44 $ 35
Unfunded Status (3,678) (3,678) (3,628)  
Accumulated Benefit Obligation at End of Year 0 0 0  
Current liability (2,569) (2,569) (144)  
Non-current liability (1,109) (1,109) (3,484)  
Unrecognized net actuarial loss (144) (144) (69)  
Unrecognized prior service cost 0 0 0  
Total $ (144) (144) (69)  
Net actuarial (loss) gain   (88) 508  
Amortization of net actuarial loss   13 136  
Amortization of prior service cost   0 86  
Plan amendment   0 (322)  
Effect of curtailment   0 1,075  
Settlement loss   0 0  
Curtailment loss   0 309  
Currency translation   0 2  
Total   $ (75) $ 1,794