Business Segments Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Details) (USD $) In Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net income	$ 52,227	$ 11,371	$ 98,789	$ 22,849
Interest expense	(7,745)	(889)	(21,973)	(1,799)
Rendering [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net income	93,398	28,647	182,354	57,950
Bakery [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net income	18,541	0	33,509	0
Unallocated Amount to Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net income	(51,967)	(16,387)	(95,101)	(33,302)
Interest expense	$ (7,745)	$ (889)	$ (21,973)	$ (1,799)