Derivatives (Details)	3 Months Ended					12 Months Ended							12 Months Ended					12 Months Ended							3 Months Ended																12 Months Ended
	Jan. 03, 2015 USD ($)	Sep. 27, 2014 USD ($)	Jun. 28, 2014 USD ($)	Mar. 29, 2014 USD ($)	Dec. 28, 2013 USD ($)	Jan. 03, 2015 USD ($) month	Dec. 28, 2013 USD ($)	Dec. 29, 2012 USD ($)	Jan. 03, 2015 Designated as Hedging Instrument [Member] USD ($)	Dec. 28, 2013 Designated as Hedging Instrument [Member] USD ($)	Jan. 03, 2015 Not Designated as Hedging Instrument [Member] USD ($)	Dec. 28, 2013 Not Designated as Hedging Instrument [Member] USD ($)	Jan. 03, 2015 Natural Gas Swap [Member] USD ($)	Dec. 28, 2013 Natural Gas Swap [Member] USD ($)	Dec. 29, 2012 Natural Gas Swap [Member] USD ($)	Jan. 03, 2015 Natural Gas Swap [Member] Designated as Hedging Instrument [Member] Other Current Assets [Member] USD ($)	Dec. 28, 2013 Natural Gas Swap [Member] Designated as Hedging Instrument [Member] Other Current Assets [Member] USD ($)	Jan. 03, 2015 Corn Option [Member] USD ($)	Dec. 28, 2013 Corn Option [Member] USD ($)	Dec. 29, 2012 Corn Option [Member] USD ($)	Jan. 03, 2015 Corn Option [Member] Designated as Hedging Instrument [Member] Accrued Expenses [Member] USD ($)	Dec. 28, 2013 Corn Option [Member] Designated as Hedging Instrument [Member] Accrued Expenses [Member] USD ($)	Jan. 03, 2015 Corn Option [Member] Designated as Hedging Instrument [Member] Other Current Assets [Member] USD ($)	Dec. 28, 2013 Corn Option [Member] Designated as Hedging Instrument [Member] Other Current Assets [Member] USD ($)	Mar. 29, 2014 Foreign Exchange Contract [Member] Not Designated as Hedging Instrument [Member] Vion Ingredients [Member] USD ($)	Dec. 28, 2013 Foreign Exchange Contract [Member] Not Designated as Hedging Instrument [Member] Vion Ingredients [Member] USD ($)	Nov. 30, 2013 Foreign Exchange Contract [Member] Not Designated as Hedging Instrument [Member] Vion Ingredients [Member] EUR (€)	Jan. 03, 2015 Foreign Exchange Contract [Member] Not Designated as Hedging Instrument [Member] Accrued Expenses [Member] USD ($)	Dec. 28, 2013 Foreign Exchange Contract [Member] Not Designated as Hedging Instrument [Member] Accrued Expenses [Member] USD ($)	Jan. 03, 2015 Foreign Exchange Contract [Member] Not Designated as Hedging Instrument [Member] Other Current Assets [Member] USD ($)	Dec. 28, 2013 Foreign Exchange Contract [Member] Not Designated as Hedging Instrument [Member] Other Current Assets [Member] USD ($)	Jan. 03, 2015 Corn options and futures [Member] Not Designated as Hedging Instrument [Member] Accrued Expenses [Member] USD ($)	Dec. 28, 2013 Corn options and futures [Member] Not Designated as Hedging Instrument [Member] Accrued Expenses [Member] USD ($)	Jan. 03, 2015 Corn options and futures [Member] Not Designated as Hedging Instrument [Member] Other Current Assets [Member] USD ($)	Dec. 28, 2013 Corn options and futures [Member] Not Designated as Hedging Instrument [Member] Other Current Assets [Member] USD ($)	Jan. 03, 2015 Heating Oil Swaps And Options [Member] Not Designated as Hedging Instrument [Member] Accrued Expenses [Member] USD ($)	Dec. 28, 2013 Heating Oil Swaps And Options [Member] Not Designated as Hedging Instrument [Member] Accrued Expenses [Member] USD ($)	Jan. 03, 2015 Heating Oil Swaps And Options [Member] Not Designated as Hedging Instrument [Member] Other Current Assets [Member] USD ($)	Dec. 28, 2013 Heating Oil Swaps And Options [Member] Not Designated as Hedging Instrument [Member] Other Current Assets [Member] USD ($)	Jan. 03, 2015 Forward Contracts [Member] Commodity Contract [Member] USD ($)	Jan. 03, 2015 Cash Flow Hedging [Member] USD ($)	Jan. 03, 2015 Cash Flow Hedging [Member] Natural Gas Swap [Member] USD ($)	Dec. 28, 2013 Cash Flow Hedging [Member] Natural Gas Swap [Member] USD ($)	Jan. 03, 2015 Cash Flow Hedging [Member] Corn Option [Member] USD ($)	Dec. 28, 2013 Cash Flow Hedging [Member] Corn Option [Member] USD ($)	Jan. 03, 2015 Short [Member] Forward Contracts [Member] BRI/EUR 1 [Member] Not Designated as Hedging Instrument [Member] BRL	Jan. 03, 2015 Short [Member] Forward Contracts [Member] BRI/EUR 2 [Member] Not Designated as Hedging Instrument [Member] BRL	Jan. 03, 2015 Short [Member] Forward Contracts [Member] EUR/USD [Member] Not Designated as Hedging Instrument [Member] EUR (€)	Jan. 03, 2015 Short [Member] Forward Contracts [Member] EUR/PLN [Member] Not Designated as Hedging Instrument [Member] EUR (€)	Jan. 03, 2015 Short [Member] Forward Contracts [Member] EUR/JPN [Member] Not Designated as Hedging Instrument [Member] EUR (€)	Jan. 03, 2015 Short [Member] Forward Contracts [Member] EUR/CNY [Member] Not Designated as Hedging Instrument [Member] EUR (€)	Jan. 03, 2015 Short [Member] Forward Contracts [Member] EUR/AUD [Member] Not Designated as Hedging Instrument [Member] EUR (€)	Jan. 03, 2015 Short [Member] Forward Contracts [Member] EUR/GBP [Member] Not Designated as Hedging Instrument [Member] EUR (€)	Jan. 03, 2015 Short [Member] Forward Contracts [Member] PLN/EUR [Member] Not Designated as Hedging Instrument [Member] PLN	Jan. 03, 2015 Long [Member] Forward Contracts [Member] BRI/EUR 1 [Member] Not Designated as Hedging Instrument [Member] EUR (€)	Jan. 03, 2015 Long [Member] Forward Contracts [Member] BRI/EUR 2 [Member] Not Designated as Hedging Instrument [Member] USD ($)	Jan. 03, 2015 Long [Member] Forward Contracts [Member] EUR/USD [Member] Not Designated as Hedging Instrument [Member] USD ($)	Jan. 03, 2015 Long [Member] Forward Contracts [Member] EUR/PLN [Member] Not Designated as Hedging Instrument [Member] PLN	Jan. 03, 2015 Long [Member] Forward Contracts [Member] EUR/JPN [Member] Not Designated as Hedging Instrument [Member] JPY (¥)	Jan. 03, 2015 Long [Member] Forward Contracts [Member] EUR/CNY [Member] Not Designated as Hedging Instrument [Member] CNY	Jan. 03, 2015 Long [Member] Forward Contracts [Member] EUR/AUD [Member] Not Designated as Hedging Instrument [Member] AUD	Jan. 03, 2015 Long [Member] Forward Contracts [Member] EUR/GBP [Member] Not Designated as Hedging Instrument [Member] GBP (£)	Jan. 03, 2015 Long [Member] Forward Contracts [Member] PLN/EUR [Member] Not Designated as Hedging Instrument [Member] EUR (€)
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount																											€ 1,000,000,000																			11,721,000	18,877,000	€ 289,385,000	€ 8,348,000	€ 3,429,000	€ 31,600,000	€ 21,146,000	€ 1,842,000	11,544,000	€ 3,650,000	$ 7,400,000	$ 359,631,000	35,000,000	¥ 488,926,000	242,054,000	31,350,000	£ 1,448,000	€ 2,741,000
Derivative, Forward Exchange Rate																											1.346
Number of months cash flow hedge gain (loss) reclassified over						12
Amount reclassified from accumulated other comprehensive loss into earnings over next 12 months						100,000
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	68,788,000	15,954,000	34,575,000	(51,006,000)		68,311,000	108,967,000	130,770,000																																	0
Asset Derivatives Fair Value	12,228,000				30,028,000	12,228,000	30,028,000		247,000	2,469,000	11,981,000	27,559,000				0	120,000						247,000	2,349,000						11,559,000	27,516,000			69,000	0			353,000	43,000
Foreign Currency Transaction Gain (Loss), Unrealized					27,500,000	0	27,516,000	0																		27,500,000
Foreign currency gains (losses)				12,600,000		(13,548,000)	28,107,000	0																	12,600,000
Liability Derivatives Fair Value	3,015,000				3,000	3,015,000	3,000		0	1,000	3,015,000	2,000									0	1,000						2,019,000	0			3,000	0			993,000	2,000
Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net						1,823,000	7,598,000																																			11,000	248,000	1,812,000	7,350,000
Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net						4,064,000	5,527,000																																			196,000	41,000	3,868,000	5,486,000
Derivative Instruments, Loss Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing																																										(1,000)	(4,000)
Gain Recognized in Income on Derivatives, Ineffective Portion and Amount Excluded from Effectiveness Testing						91,000	270,000																																					92,000	274,000
Gain/(loss) recognized in other comprehensive income (loss)						1,800,000	7,600,000						11,000	248,000	(628,000)			1,812,000	7,350,000	317,000
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax						700,000	2,900,000						4,000	96,000	(243,000)			704,000	2,852,000	123,000
Forward Purchase Amount																																								$ 4,200,000