Other Income (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
	Aug. 24, 2012	Aug. 26, 2011	Aug. 24, 2012	Aug. 26, 2011	May 25, 2012 Ag Intellectual Properties [Member]	Aug. 26, 2011 Ag Intellectual Properties [Member]	Aug. 24, 2012 Ag Intellectual Properties [Member]	Aug. 26, 2011 Ag Intellectual Properties [Member]
Other Income Expense [Line Items]
Gain on sale of intellectual properties				$ (4,500)		$ (4,500)		$ (4,500)
Termination of certain agency agreements					2,100		2,125
Miscellaneous	(778)	(622)	(1,329)	(1,545)
Other operating (income) expense - net	$ (778)	$ (5,122)	$ 796	$ (6,045)