Accounting Policies and Basis of Presentation (Details) (USD $)	3 Months Ended		9 Months Ended			3 Months Ended	0 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014 affiliate	Sep. 28, 2013	Sep. 27, 2014 Divestiture of a 50% interest in Daily's	Sep. 27, 2014 Pork segment Divestiture of a 50% interest in Daily's	Sep. 27, 2014 Pork segment Triumph Divestiture of a 50% interest in Daily's
Transactions resulting from deconsolidation
Percentage of ownership interest sold							50.00%
Non-cash transactions resulting from deconsolidation
Decrease in net working capital					$ 19,349,000
Increase in investments in and advances to affiliates					(72,500,000)
Decrease in fixed assets					16,038,000
Decrease in goodwill					28,372,000
Decrease in other intangible assets, net (not subject to amortization)					17,000,000
Decrease in noncontrolling interest					(151,000)
Gain on sale of controlling interest in a subsidiary	64,392,000		64,392,000		64,392,000	64,392,000
Net proceeds from sale of controlling interest in subsidiary			72,500,000		72,500,000		72,500,000
Supplemental Non-Cash Transactions
Number of affiliates			1
Non-cash, pay-in-kind interest income and accretion of discount recognized on a note receivable from an affiliate	$ 3,976,000	$ 3,397,000	$ 11,511,000	$ 9,828,000