Discontinued Operations and Other Disposals (Details) (USD $)	3 Months Ended	12 Months Ended						3 Months Ended			12 Months Ended	3 Months Ended
	Apr. 28, 2010	Apr. 29, 2012		Apr. 27, 2011		Apr. 28, 2010		Jan. 27, 2010 Appetizers And, Inc. [Member]	Jan. 27, 2010 Private Label Frozen Desserts Business in U.K. [Member]	Oct. 28, 2009 Kabobs [Member]	Apr. 29, 2012 U.S. Foodservice Desert Business [Member]	Jul. 29, 2012 Sale [Member] U.S. Foodservice Desert Business [Member] factories
Summary Of Operating Results For Discontinued Operations And Other Disposals [Abstract]
Sales						$ 63,000,000					$ 75,000,000
Net after-tax losses						(4,700,000)
Tax benefit on losses						2,000,000
Number of Factories												2
Discontinued Operations And Other Disposals Textuals Abstract
Pre tax losses on sale of business								14,500,000	31,400,000	15,000,000		33,000,000
After tax losses on sale of business								10,400,000	23,600,000	10,900,000		21,000,000
Cash proceeds from government for acquisition of property	94,600,000					94,600,000
Business Exit Period	3 years
Leaseback period for factory in years	3 years
Proceeds From Divestiture Of Businesses Deferred Amount	81,200,000	20,700,000		63,200,000		81,200,000
Excess of proceeds received over estimated costs to be recovered and incurred		$ 0	[1]	$ 0	[1]	$ 14,977,000	[1]

[1] Includes payments received from the government in the Netherlands net of estimated costs to exit the facility. See Note 4 for additional explanation.