Acquisitions (Narrative) (Details) (Kettle Creations [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jan. 25, 2013	Aug. 14, 2012	Jan. 25, 2013
Kettle Creations [Member]
Business Acquisition [Line Items]
Business Acquisition, Date of Acquisition Agreement 1	Aug. 14, 2012
Business Acquisition, Name of Acquired Entity		Kettle Creations
Business Acquisition, Description of Acquired Entity		Kettle Creations® brand (“Kettle”) and a 100,000 square-foot, state-of-the-art food production facility that produces mashed potatoes, macaroni and cheese, and other side dishes
Business Acquisition Cost Of Acquired Entity Transaction Costs Expense	$ 160		$ 1,487
Business Acquisition, Payments of retension bonus			1,499
Business Acquisition, Retention Bonus	3,628	5,127	3,628
Other intangible assets not subject to amortization		3,027
Other intangible definite lived assets		$ 1,105