Segment Information (Details 2) (USD $)	3 Months Ended		9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013	Dec. 31, 2013
Segment Information
Sales to External Customers:	$ 1,622,641,000	$ 1,648,105,000	$ 4,796,868,000	$ 4,914,440,000
Operating Income (Loss):	96,086,000	33,770,000	295,628,000	150,777,000
Income (Loss) from Affiliates:	9,492,000	(4,989,000)	23,939,000	(12,386,000)
Total Assets:	3,470,069,000		3,470,069,000		3,418,048,000
Investment in and Advances to Affiliates:	522,071,000		522,071,000		406,900,000
Allocation to individual segments of general corporate management oversight costs			0
Operating Segments
Segment Information
Operating Income (Loss):	101,000,000	41,712,000	312,623,000	167,401,000
Total Assets:	2,995,870,000		2,995,870,000		2,943,770,000
Operating Segments | Pork
Segment Information
Sales to External Customers:	454,927,000	435,981,000	1,303,752,000	1,262,083,000
Operating Income (Loss):	70,400,000	34,099,000	241,090,000	89,997,000
Total Assets:	790,645,000		790,645,000		773,641,000
Investment in and Advances to Affiliates:	74,500,000		74,500,000
Operating Segments | Commodity Trading and Milling
Segment Information
Sales to External Customers:	858,497,000	857,994,000	2,562,001,000	2,553,510,000
Operating Income (Loss):	13,309,000	8,808,000	43,502,000	29,746,000
Income (Loss) from Affiliates:	(4,729,000)	(999,000)	(6,934,000)	(1,187,000)
Total Assets:	1,112,976,000		1,112,976,000		1,056,930,000
Investment in and Advances to Affiliates:	190,271,000		190,271,000		197,036,000
Operating Segments | Marine
Segment Information
Sales to External Customers:	205,260,000	219,466,000	616,684,000	676,347,000
Operating Income (Loss):	(4,564,000)	(15,033,000)	(15,013,000)	(22,413,000)
Total Assets:	278,418,000		278,418,000		271,012,000
Investment in and Advances to Affiliates:	17,333,000		17,333,000
Operating Segments | Sugar
Segment Information
Sales to External Customers:	47,786,000	58,500,000	145,128,000	192,554,000
Operating Income (Loss):	6,280,000	193,000	22,695,000	28,312,000
Income (Loss) from Affiliates:	(112,000)	54,000	636,000	171,000
Total Assets:	184,589,000		184,589,000		226,245,000
Investment in and Advances to Affiliates:	2,634,000		2,634,000		2,768,000
Operating Segments | Power
Segment Information
Sales to External Customers:	51,622,000	73,607,000	158,503,000	221,386,000
Operating Income (Loss):	15,044,000	13,429,000	19,489,000	41,405,000
Total Assets:	238,609,000		238,609,000		267,431,000
Operating Segments | Turkey
Segment Information
Income (Loss) from Affiliates:	14,333,000	(4,044,000)	30,237,000	(11,370,000)
Total Assets:	383,344,000		383,344,000		342,083,000
Investment in and Advances to Affiliates:	237,333,000		237,333,000		207,096,000
Operating Segments | All Other
Segment Information
Sales to External Customers:	4,549,000	2,557,000	10,800,000	8,560,000
Operating Income (Loss):	531,000	216,000	860,000	354,000
Total Assets:	7,289,000		7,289,000		6,428,000
Corporate Items
Segment Information
Operating Income (Loss):	(4,914,000)	(7,942,000)	(16,995,000)	(16,624,000)
Total Assets:	$ 474,199,000		$ 474,199,000		$ 474,278,000