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Business Segments (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 30, 2017 | Sep. 30, 2017 | Jul. 01, 2017 | Apr. 01, 2017 | Dec. 31, 2016 | Oct. 01, 2016 | Jul. 02, 2016 | Apr. 02, 2016 | Dec. 30, 2017 | Dec. 31, 2016 | Jan. 02, 2016
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  | $ 952,549 | $ 936,262 | $ 894,930 | $ 878,510 | $ 885,758 | $ 852,018 | $ 875,777 | $ 778,375 | $ 3,662,251 | $ 3,391,928 | $ 3,391,255
Cost of sales and operating expenses |  |  |  |  |  |  |  |  |  | 2,875,851 | 2,635,547 | 2,654,025
Selling, general and administrative expense |  |  |  |  |  |  |  |  |  | 347,487 | 314,005 | 316,383
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 302,100 | 289,908 | 269,904
Segment operating income/(loss) |  | 35,026 | 33,310 | 37,063 | 31,414 | 35,380 | 35,528 | 54,467 | 26,692 | 136,813 | 152,067 | 142,644
Equity in net income of unconsolidated subsidiaries |  |  |  |  |  |  |  |  |  | 28,504 | 70,379 | 73,416
Total other expense |  |  |  |  |  |  |  |  |  | (101,117) | (99,907) | (117,280)
Income before income taxes |  | 21,934 | $ 14,980 | $ 18,070 | $ 9,216 | 47,893 | $ 28,146 | $ 41,974 | $ 4,526 | 64,200 | 122,539 | 98,780
Segment assets |  | 4,958,225 |  |  |  | 4,698,017 |  |  |  | 4,958,225 | 4,698,017 |
Capital expenditures: | [1] |  |  |  |  |  |  |  |  | 274,168 | 243,523 | 229,848
Long-Lived Assets |  | 4,001,780 |  |  |  | 3,804,715 |  |  |  | 4,001,780 | 3,804,715 |
North America |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  | 1,937,027 | 1,817,659 | 1,951,421
Long-Lived Assets |  | 2,468,111 |  |  |  | 2,411,489 |  |  |  | 2,468,111 | 2,411,489 |
Europe |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  | 1,372,750 | 1,225,397 | 1,066,779
Long-Lived Assets |  | 1,292,020 |  |  |  | 1,158,087 |  |  |  | 1,292,020 | 1,158,087 |
China |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  | 209,780 | 218,480 | 234,978
Long-Lived Assets |  | 151,760 |  |  |  | 152,150 |  |  |  | 151,760 | 152,150 |
South America |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  | 60,111 | 55,089 | 62,035
Long-Lived Assets |  | 81,247 |  |  |  | 74,837 |  |  |  | 81,247 | 74,837 |
Other |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  | 82,583 | 75,303 | 76,042
Long-Lived Assets |  | 8,642 |  |  |  | 8,152 |  |  |  | 8,642 | 8,152 |
Feed Ingredients [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  | 2,239,492 | 2,089,145 | 2,074,333
Cost of sales and operating expenses |  |  |  |  |  |  |  |  |  | 1,744,768 | 1,624,858 | 1,613,402
Gross Margin |  |  |  |  |  |  |  |  |  | 494,724 | 464,287 | 460,931
Selling, general and administrative expense |  |  |  |  |  |  |  |  |  | 180,866 | 169,648 | 178,624
Acquisition costs |  |  |  |  |  |  |  |  |  |  | 0 | 0
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 184,172 | 178,845 | 165,854
Segment operating income/(loss) |  |  |  |  |  |  |  |  |  | 129,686 | 115,794 | 116,453
Equity in net income of unconsolidated subsidiaries |  |  |  |  |  |  |  |  |  | 265 | 467 | 1,521
Segment income |  |  |  |  |  |  |  |  |  | 129,951 | 116,261 | 117,974
Segment assets |  | 2,614,545 |  |  |  | 2,464,509 |  |  |  | 2,614,545 | 2,464,509 |
Capital expenditures: |  |  |  |  |  |  |  |  |  | 191,953 | 167,313 | 153,894
Food Ingredients [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  | 1,156,976 | 1,055,725 | 1,088,727
Cost of sales and operating expenses |  |  |  |  |  |  |  |  |  | 920,575 | 828,223 | 863,562
Gross Margin |  |  |  |  |  |  |  |  |  | 236,401 | 227,502 | 225,165
Selling, general and administrative expense |  |  |  |  |  |  |  |  |  | 104,982 | 96,170 | 97,110
Acquisition costs |  |  |  |  |  |  |  |  |  |  | 0 | 0
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 75,010 | 70,120 | 66,817
Segment operating income/(loss) |  |  |  |  |  |  |  |  |  | 56,409 | 61,212 | 61,238
Equity in net income of unconsolidated subsidiaries |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Segment income |  |  |  |  |  |  |  |  |  | 56,409 | 61,212 | 61,238
Segment assets |  | 1,499,027 |  |  |  | 1,414,409 |  |  |  | 1,499,027 | 1,414,409 |
Capital expenditures: |  |  |  |  |  |  |  |  |  | 50,099 | 50,020 | 49,066
Fuel Ingredients [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  | 265,783 | 247,058 | 228,195
Cost of sales and operating expenses |  |  |  |  |  |  |  |  |  | 210,508 | 182,466 | 177,061
Gross Margin |  |  |  |  |  |  |  |  |  | 55,275 | 64,592 | 51,134
Selling, general and administrative expense |  |  |  |  |  |  |  |  |  | 10,467 | 6,895 | 7,264
Acquisition costs |  |  |  |  |  |  |  |  |  |  | 0 | 0
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 31,019 | 28,531 | 26,711
Segment operating income/(loss) |  |  |  |  |  |  |  |  |  | 13,789 | 29,166 | 17,159
Equity in net income of unconsolidated subsidiaries |  |  |  |  |  |  |  |  |  | 28,239 | 69,912 | 71,895
Segment income |  |  |  |  |  |  |  |  |  | 42,028 | 99,078 | 89,054
Segment assets |  | 688,890 |  |  |  | 657,637 |  |  |  | 688,890 | 657,637 |
Capital expenditures: |  |  |  |  |  |  |  |  |  | 24,707 | 22,323 | 19,478
Corporate Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Cost of sales and operating expenses |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Gross Margin |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Selling, general and administrative expense |  |  |  |  |  |  |  |  |  | 51,172 | 41,292 | 33,385
Acquisition costs |  |  |  |  |  |  |  |  |  |  | 401 | 8,299
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 11,899 | 12,412 | 10,522
Segment operating income/(loss) |  |  |  |  |  |  |  |  |  | (63,071) | (54,105) | (52,206)
Equity in net income of unconsolidated subsidiaries |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Segment income |  |  |  |  |  |  |  |  |  | (63,071) | (54,105) | (52,206)
Segment assets |  | 155,763 |  |  |  | 161,462 |  |  |  | 155,763 | 161,462 |
Capital expenditures: |  |  |  |  |  |  |  |  |  | 7,409 | 3,867 | 7,410
Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  | 3,662,251 | 3,391,928 | 3,391,255
Cost of sales and operating expenses |  |  |  |  |  |  |  |  |  | 2,875,851 | 2,635,547 | 2,654,025
Gross Margin |  |  |  |  |  |  |  |  |  | 786,400 | 756,381 | 737,230
Selling, general and administrative expense |  |  |  |  |  |  |  |  |  | 347,487 | 314,005 | 316,383
Acquisition costs |  |  |  |  |  |  |  |  |  |  | 401 | 8,299
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 302,100 | 289,908 | 269,904
Segment operating income/(loss) |  |  |  |  |  |  |  |  |  | 136,813 | 152,067 | 142,644
Equity in net income of unconsolidated subsidiaries |  |  |  |  |  |  |  |  |  | 28,504 | 70,379 | 73,416
Segment income |  |  |  |  |  |  |  |  |  | 165,317 | 222,446 | $ 216,060
Segment assets |  | $ 4,958,225 |  |  |  | $ 4,698,017 |  |  |  | $ 4,958,225 | $ 4,698,017 |
[1] | Excludes immaterial capital assets acquired by acquisition in fiscal 2017, fiscal 2016 and fiscal 2015.

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