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Investment in Unconsolidated Subsidiary (Revenues and Expenses) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 29, 2024 | Mar. 30, 2024 | Jul. 01, 2023 | Apr. 01, 2023 | Jun. 29, 2024 | Jul. 01, 2023
Revenues: |  |  |  |  |  |
Operating revenues | $ 1,455,292 |  | $ 1,757,621 |  | $ 2,875,591 | $ 3,548,793
Expenses: |  |  |  |  |  |
Cost of sales and operating expenses | 1,128,421 |  | 1,359,702 |  | 2,245,087 | 2,726,675
Total costs and expenses | 1,350,987 |  | 1,613,901 |  | 2,712,536 | 3,243,565
Operating income | 148,502 |  | 356,684 |  | 285,671 | 612,529
Income before income taxes | 82,139 |  | 295,909 |  | 167,634 | 512,738
Income tax expense | 774 |  | 40,712 |  | 4,681 | 67,686
Net income | 81,365 | $ 81,588 | 255,197 | $ 189,855 | 162,953 | 445,052
Diamond Green Diesel Holdings LLC Joint Venture |  |  |  |  |  |
Revenues: |  |  |  |  |  |
Operating revenues | 1,184,076 |  | 2,246,111 |  | 2,595,191 | 3,926,161
Expenses: |  |  |  |  |  |
Cost of sales and operating expenses | 1,014,927 |  | 1,751,315 |  | 2,174,283 | 3,172,719
Lower of cost or market (LCM) inventory valuation adjustment | 15,866 |  | 0 |  | 37,504 | 0
Depreciation, amortization and accretion expense | 61,910 |  | 58,315 |  | 127,200 | 116,922
Total costs and expenses | 1,092,703 |  | 1,809,630 |  | 2,338,987 | 3,289,641
Operating income | 91,373 |  | 436,481 |  | 256,204 | 636,520
Other income | 6,058 |  | 2,121 |  | 9,278 | 4,162
Interest and debt expense, net | (9,037) |  | (12,674) |  | (20,279) | (26,080)
Income before income taxes | 88,394 |  | 425,928 |  | 245,203 | 614,602
Income tax expense | 0 |  | 0 |  | (29) | 0
Net income | $ 88,394 |  | $ 425,928 |  | $ 245,232 | $ 614,602

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