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Goodwill (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Oct. 01, 2016 | Jan. 02, 2016
Segment Reporting Information [Line Items] |  |
Goodwill | $ 1,272,290 | $ 1,249,016
Accumulated impairment losses | (15,914) | (15,914)
Goodwill | 1,256,376 | 1,233,102
Goodwill acquired during year | 829 |
Foreign currency translation | 22,445 |
Feed Ingredients [Member] |  |
Segment Reporting Information [Line Items] |  |
Goodwill | 827,242 | 812,797
Accumulated impairment losses | (15,914) | (15,914)
Goodwill | 811,328 | 796,883
Goodwill acquired during year | 827 |
Foreign currency translation | 13,618 |
Fuel Ingredients [Member] |  |
Segment Reporting Information [Line Items] |  |
Goodwill | 116,497 | 112,834
Accumulated impairment losses | 0 | 0
Goodwill | 116,497 | 112,834
Goodwill acquired during year | 2 |
Foreign currency translation | 3,661 |
Food Ingredients [Member] |  |
Segment Reporting Information [Line Items] |  |
Goodwill | 328,551 | 323,385
Accumulated impairment losses | 0 | 0
Goodwill | 328,551 | $ 323,385
Goodwill acquired during year | 0 |
Foreign currency translation | $ 5,166 |

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