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Comprehensive Income Reclassifications (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 02, 2021 | Sep. 26, 2020 | Jun. 27, 2020 | Mar. 28, 2020 | Dec. 28, 2019 | Sep. 28, 2019 | Jun. 29, 2019 | Mar. 30, 2019 | Jan. 02, 2021 | Dec. 28, 2019 | Dec. 29, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ 1,019,839 | $ 850,569 | $ 848,673 | $ 852,842 | $ 859,428 | $ 842,049 | $ 827,324 | $ 835,104 | $ 3,571,923 | $ 3,363,905 | $ 3,387,726
Cost of sales and operating expenses |  |  |  |  |  |  |  |  |  | 2,688,815 | 2,589,085 | 2,646,374
Amortization of prior service cost |  |  |  |  |  |  |  |  |  | (33) | (34) | (35)
Amortization of actuarial loss |  |  |  |  |  |  |  |  |  | (3,405) | (4,571) | (3,543)
Amortization of curtailment |  |  |  |  |  |  |  |  |  | (69) |  | (498)
Amortization of settlement |  |  |  |  |  |  |  |  |  | 30 | (66) | 3
Income taxes |  |  |  |  |  |  |  |  |  | (53,289) | (59,467) | (12,031)
Net income |  | $ 44,745 | $ 101,125 | $ 65,439 | $ 85,510 | $ 242,609 | $ 25,721 | $ 26,258 | $ 18,012 | 296,819 | 312,600 | 101,496
Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  |  | 5,967 | (4,722) | (1,741)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] | Soybean Meal [Member] |  |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  | (49) | 0 | 8
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] | Foreign Exchange Contract [Member] |  |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  | 13,809 | (1,345) | 0
Reclassification out of Accumulated Other Comprehensive Income [Member] | Derivative Instruments |  |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Income from operations before income taxes |  |  |  |  |  |  |  |  |  | 13,637 | (1,767) | 1,906
Income taxes |  |  |  |  |  |  |  |  |  | (5,071) | 548 | (492)
Net income |  |  |  |  |  |  |  |  |  | 8,566 | (1,219) | 1,414
Reclassification out of Accumulated Other Comprehensive Income [Member] | Derivative Instruments | Natural Gas Swap [Member] |  |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Cost of sales and operating expenses |  |  |  |  |  |  |  |  |  | 0 | 0 | (14)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Derivative Instruments | Corn Option [Member] |  |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Cost of sales and operating expenses |  |  |  |  |  |  |  |  |  | (123) | (422) | 1,912
Reclassification out of Accumulated Other Comprehensive Income [Member] | Defined Benefit Pension Plans |  |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Amortization of prior service cost | [1] |  |  |  |  |  |  |  |  | (33) | (34) | (35)
Amortization of actuarial loss | [1] |  |  |  |  |  |  |  |  | (3,405) | (4,571) | (3,543)
Amortization of curtailment | [1] |  |  |  |  |  |  |  |  | (69) | 0 | (498)
Amortization of settlement | [1] |  |  |  |  |  |  |  |  | 30 | (66) | 3
Income from operations before income taxes |  |  |  |  |  |  |  |  |  | (3,477) | (4,671) | (4,073)
Income taxes |  |  |  |  |  |  |  |  |  | 878 | 1,168 | 918
Net income |  |  |  |  |  |  |  |  |  | $ (2,599) | $ (3,503) | $ (3,155)
[1] | These items are included in the computation of net periodic pension cost. See Note 15 Employee Benefit Plans for additional information.

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