Goodwill and Other Identifiable Intangible Assets (Details Textual) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Feb. 26, 2012 Y	Aug. 28, 2011	Feb. 26, 2012 ATFL [Member]	Feb. 26, 2012 National pretzel company [Member]	Nov. 30, 2011 National pretzel company [Member]
Goodwill and Other Identifiable Intangible Assets (Textual) [Abstract]
Acquired intangible assets		$ 57.5	$ 40.0
Purchase price allocated to intangibles				68.2	68.2
Goodwill and Other Identifiable Intangible Assets (Additional Textual) [Abstract]
Weighted average life in years of amortizing intangible assets	14
Recognized amortization expense	20.2
Estimated amortization expenses, fiscal year 2012	20.2
Estimated amortization expenses, fiscal year 2013	20.2
Estimated amortization expenses, fiscal year 2014	20.2
Estimated amortization expenses, fiscal year 2015	20.2
Estimated amortization expenses, fiscal year 2016	$ 20.2