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Derivatives (Details) € in Thousands, £ in Thousands, zł in Thousands, $ in Thousands, $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jan. 02, 2021 USD ($) | Sep. 26, 2020 USD ($) | Jun. 27, 2020 USD ($) | Mar. 28, 2020 USD ($) | Dec. 28, 2019 USD ($) | Sep. 28, 2019 USD ($) | Jun. 29, 2019 USD ($) | Mar. 30, 2019 USD ($) | Jan. 02, 2021 USD ($) month | Dec. 28, 2019 USD ($) | Dec. 29, 2018 USD ($) | Jan. 02, 2021 EUR (€) | Jan. 02, 2021 PLN (zł) | Jan. 02, 2021 GBP (£) | Jan. 02, 2021 CAD ($)
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of months cash flow hedge gain (loss) reclassified over | month |  |  |  |  |  |  |  |  | 12 |  |  |  |  |  |
Amount reclassified from accumulated other comprehensive loss into earnings over next 12 months |  |  |  |  |  |  |  |  | $ 3,000 |  |  |  |  |  |
Net income | $ 46,139 | $ 101,605 | $ 66,495 | $ 86,091 | $ 243,446 | $ 26,837 | $ 31,044 | $ 19,640 | 300,330 | $ 320,967 | $ 105,944 |  |  |  |
Foreign Exchange Contract [Member] | Designated as Hedging Instrument [Member] | Other Current Assets [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Derivatives Fair Value | 11,600 |  |  |  | 1,300 |  |  |  | 11,600 | 1,300 |  |  |  |  |
Corn Option [Member] | Designated as Hedging Instrument [Member] | Other Current Assets [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Derivatives Fair Value | (6,800) |  |  |  | 400 |  |  |  | (6,800) | 400 |  |  |  |  |
Commodity Contract [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward purchase amount | 84,700 |  |  |  |  |  |  |  | 84,700 |  |  |  |  |  |
Soybean Meal [Member] | Designated as Hedging Instrument [Member] | Other Current Assets [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Derivatives Fair Value | 400 |  |  |  | $ 0 |  |  |  | 400 | $ 0 |  |  |  |  |
Cash Flow Hedging [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | 0 |  |  |  |  |  |
Short [Member] | EUR/GBP [Member] | Not Designated as Hedging Instrument [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | € |  |  |  |  |  |  |  |  |  |  |  | € 2,488 |  |  |
Short [Member] | EUR/CAD | Not Designated as Hedging Instrument [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | € |  |  |  |  |  |  |  |  |  |  |  | 32 |  |  |
Short [Member] | PLN/EUR [Member] | Not Designated as Hedging Instrument [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | zł |  |  |  |  |  |  |  |  |  |  |  |  | zł 24,824 |  |
Short [Member] | PLN/USD | Not Designated as Hedging Instrument [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | zł |  |  |  |  |  |  |  |  |  |  |  |  | zł 2,253 |  |
Short [Member] | GBPEUR [Member] | Not Designated as Hedging Instrument [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | £ |  |  |  |  |  |  |  |  |  |  |  |  |  | £ 232 |
Short [Member] | GBP/USD | Not Designated as Hedging Instrument [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | £ |  |  |  |  |  |  |  |  |  |  |  |  |  | 150 |
Short [Member] | CAD/USD | Not Designated as Hedging Instrument [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10,205
Long [Member] | EUR/GBP [Member] | Not Designated as Hedging Instrument [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | £ |  |  |  |  |  |  |  |  |  |  |  |  |  | £ 2,269 |
Long [Member] | EUR/CAD | Not Designated as Hedging Instrument [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 50
Long [Member] | PLN/EUR [Member] | Not Designated as Hedging Instrument [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | € |  |  |  |  |  |  |  |  |  |  |  | 5,506 |  |  |
Long [Member] | PLN/USD | Not Designated as Hedging Instrument [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | 608 |  |  |  |  |  |  |  | 608 |  |  |  |  |  |
Long [Member] | GBPEUR [Member] | Not Designated as Hedging Instrument [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | € |  |  |  |  |  |  |  |  |  |  |  | € 253 |  |  |
Long [Member] | GBP/USD | Not Designated as Hedging Instrument [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | 200 |  |  |  |  |  |  |  | 200 |  |  |  |  |  |
Long [Member] | CAD/USD | Not Designated as Hedging Instrument [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | $ 8,000 |  |  |  |  |  |  |  | $ 8,000 |  |  |  |  |  |

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