Royalty Revenue and Related Expenses (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 23, 2012	Nov. 25, 2011	Nov. 23, 2012	Nov. 25, 2011
Segment Reporting Information [Line Items]
Material, labor and other production costs	$ 244,071	$ 230,572	$ 584,667	$ 546,699
Selling, distribution and marketing expenses	190,041	141,501	466,199	392,630
Administrative and general expenses	74,483	60,510	225,521	186,734
AG Intellectual Properties [Member]
Segment Reporting Information [Line Items]
Royalty revenue	7,085	6,401	17,947	20,785
Material, labor and other production costs	2,794	2,789	7,795	7,781
Selling, distribution and marketing expenses	1,856	2,621	5,235	7,345
Administrative and general expenses	467	431	1,330	1,292
Expenses Associated With Royalty Revenue, Total	$ 5,117	$ 5,841	$ 14,360	$ 16,418