RELATED PARTY TRANSACTIONS (Details Textual) (USD $)	1 Months Ended	12 Months Ended
	Oct. 30, 2011	Dec. 30, 2012	Dec. 25, 2011	Dec. 26, 2010
Due from Related Parties		$ 13,436,000	$ 11,653,000	$ 7,212,000
Accounts receivable from JBS USA, LLC		1,514,000	21,198,000
Operating Leases, Rent Expense		14,300,000	26,200,000	58,300,000
Chief Executive Officer [Member]
Related Party Transaction, Purchases from Related Party			2,100,000
Two Airplane Hangars and Undeveloped Land [Member]
Proceeds From Affiliate Purchase				1,450,000
Directors Compensation Per Annum As Per Agreement [Member] | Director [Member]
Related Party Transaction, Amounts of Transaction		1,500,000
Number Of Years To Be Compensated As Per Agreement With Director		5 years
Founder Director [Member]
Description of Guarantees Given by Parent Company		In consideration of such guarantees, the Company would pay Pilgrim Interests, Ltd. a quarterly fee equal to 0.25% of one-half of the average aggregate outstanding balance of such guaranteed debt.
Contract Costs Paid		less than $1.3 million	less than $1.3 million	less than $1.3 million
Jbs Usa Llc [Member]
Proceeds From Affiliate Purchase	24,500,000	206,720,000	117,909,000	5,422,000
Due from Related Parties		13,400,000	11,700,000
Accounts receivable from JBS USA, LLC		1,500,000	21,200,000
Goods In Transit From Related Party			3,800,000
Related Party Transaction, Purchases from Related Party		69,048,000	173,081,000	93,898,000
Common Stock Issued (in shares)		18,924,438
Swift Pork Company [Member]
Proceeds From Affiliate Purchase			$ 13,000,000