Business Segments Reconciliation of Assets from Segment to Consolidated (Details) (USD $) In Thousands	Jul. 02, 2011	Jan. 01, 2011
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 1,403,822	$ 1,382,258
Rendering [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	1,117,568	1,102,719
Bakery [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	169,205	166,658
Unallocated Amount to Segment [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 117,049	$ 112,881