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Investment in Unconsolidated Subsidiary Selected Financial Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 29, 2018 | Dec. 30, 2017 | Dec. 31, 2016
Assets: |  |  |
Property, plant and equipment, net | $ 576,384 | $ 435,328 |
Total assets | 787,243 | 642,761 |
Liabilities and members' equity: |  |  |
Total current portion of long term debt | 189 | 17,023 |
Total long term debt | 8,485 | 36,730 |
Total members' equity | 737,411 | 547,853 |
Expenses: |  |  |
Operating income | 318,593 | 57,441 | $ 146,627
Interest and debt expense, net | (955) | (2,306) | (7,354)
Diamond Green Diesel Holdings LLC Joint Venture [Member] |  |  |
Assets: |  |  |
Total current assets | 186,258 | 202,778 |
Other assets | 24,601 | 4,655 |
Liabilities and members' equity: |  |  |
Total other current liabilities | 40,619 | 40,705 |
Total other long term liabilities | 539 | 450 |
Total liabilities and member's equity | 787,243 | 642,761 |
Revenues: |  |  |
Operating revenues | 677,663 | 633,908 | 527,670
Equity Method Investment, Summarized Financial Information, Total Costs and Expenses Less Depreciation, Amortization and Accretion Expense | 329,636 | 547,512 | 353,222
Equity Method Investment, Summarized Financial Information, Depreciation, Amortization and Accretion Expense | 29,434 | 28,955 | 27,821
Expenses: |  |  |
Other income | 1,919 | 1,343 | 551
Net income | $ 319,557 | $ 56,478 | $ 139,824

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