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Goodwill (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 28, 2019 | Dec. 29, 2018
Goodwill [Roll Forward] |  |
Goodwill at beginning of year | $ 1,245,534 | $ 1,317,007
Accumulated impairment losses | (16,375) | (15,914)
Goodwill at beginning of year | 1,229,159 | 1,301,093
Goodwill acquired during year | 487 | 29,253
Goodwill disposed of during year | (636) | (61,459)
Goodwill, Impairment Loss |  | (461)
Foreign currency translation | (5,719) | (39,267)
Goodwill at end of year | 1,239,666 | 1,245,534
Accumulated impairment losses at end of year | (16,375) | (16,375)
Goodwill at end of year | 1,223,291 | 1,229,159
Feed Ingredients [Member] |  |
Goodwill [Roll Forward] |  |
Goodwill at beginning of year | 791,966 | 848,167
Accumulated impairment losses | (15,914) | (15,914)
Goodwill at beginning of year | 776,052 | 832,253
Goodwill acquired during year | 396 | 27,645
Goodwill disposed of during year | (636) | (61,088)
Goodwill, Impairment Loss |  | 0
Foreign currency translation | 1,731 | (22,758)
Goodwill at end of year | 793,457 | 791,966
Accumulated impairment losses at end of year | (15,914) | (15,914)
Goodwill at end of year | 777,543 | 776,052
Food Ingredients [Member] |  |
Goodwill [Roll Forward] |  |
Goodwill at beginning of year | 335,701 | 344,471
Accumulated impairment losses | (461) | 0
Goodwill at beginning of year | 335,240 | 344,471
Goodwill acquired during year | 91 | 1,608
Goodwill disposed of during year | 0 | (371)
Goodwill, Impairment Loss |  | (461)
Foreign currency translation | (6,138) | (10,007)
Goodwill at end of year | 329,654 | 335,701
Accumulated impairment losses at end of year | (461) | (461)
Goodwill at end of year | 329,193 | 335,240
Fuel Ingredients [Member] |  |
Goodwill [Roll Forward] |  |
Goodwill at beginning of year | 117,867 | 124,369
Accumulated impairment losses | 0 | 0
Goodwill at beginning of year | 117,867 | 124,369
Goodwill acquired during year | 0 | 0
Goodwill disposed of during year | 0 | 0
Goodwill, Impairment Loss |  | 0
Foreign currency translation | (1,312) | (6,502)
Goodwill at end of year | 116,555 | 117,867
Accumulated impairment losses at end of year | 0 | 0
Goodwill at end of year | $ 116,555 | $ 117,867

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