Consolidated Statements Of Changes In Shareholders' Equity (USD $) In Millions, except Share data	Total USD ($)	Restricted Stock Units (RSUs) [Member] USD ($)	Class A Common Stock [Member] USD ($)	Class B Common Stock [Member] USD ($)	Additional Paid-In Capital [Member] USD ($)	Accumulated Other Comprehensive Income (Loss) [Member] USD ($)	Retained Earnings [Member] USD ($)	Common Shares Outstanding [Member]	Common Shares Outstanding [Member] Restricted Stock Units (RSUs) [Member]	Common Shares Outstanding [Member] Performance Units [Member]
Balance at Feb. 26, 2010	$ 675.5		$ 57.0	$ 0	$ 8.2	$ (17.9)	$ 628.2
Balance, shares at Feb. 26, 2010								132,963,211
Common stock issuance	0.3		0.3
Common stock issuance, shares								41,720
Common stock repurchases	(10.8)
Common stock repurchases, shares			(10,800,000)					(1,001,590)
Tax effect of exercise of stock awards	0.4				0.4
Stock compensation related to IDEO ownership transition	6.5				6.5
Restricted stock expense	0.1		0.1
Units issued as common stock	0	(2.3)	1.9		1.9
Units issued as common stock, shares									231,227
Performance share, performance units and restricted stock units expense	7.0				7.0
Other comprehensive income (loss)	18.5					18.5
Dividends paid	(21.6)						(21.6)
Net income	20.4						20.4
Balance at Feb. 25, 2011	696.3		48.5	0	20.2	0.6	627.0
Balance, shares at Feb. 25, 2011	132,200,000							132,234,568
Common stock issuance	0.3		0.3
Common stock issuance, shares								38,888
Common stock repurchases	(47.7)
Common stock repurchases, shares	(5,800,000)		(47,700,000)					(5,802,293)
Tax effect of exercise of stock awards	1.1				1.1
Units issued as common stock		(0.8)
Units issued as common stock, shares									18,166
Performance share, performance units and restricted stock units expense	11.3				11.3
Other comprehensive income (loss)	0.2					0.2
Dividends paid	(31.7)						(31.7)
Net income	56.7						56.7
Balance at Feb. 24, 2012	686.5		1.1	0	32.6	0.8	652.0
Balance, shares at Feb. 24, 2012	126,500,000							126,489,329
Common stock issuance	0.3				0.3
Common stock issuance, shares								43,238
Common stock repurchases	(19.9)
Common stock repurchases, shares	(2,300,000)		(1,100,000)		(18,800,000)			(2,346,590)
Tax effect of exercise of stock awards	3.8				3.8
Units issued as common stock		(1.7)
Units issued as common stock, shares		170,582							215,185	763,425
Performance share, performance units and restricted stock units expense	9.3				9.3
Other comprehensive income (loss)	(5.0)					(5.0)
Dividends paid	(45.8)						(45.8)
Net income	38.8						38.8
Balance at Feb. 22, 2013	$ 668.0		$ 0	$ 0	$ 27.2	$ (4.2)	$ 645.0
Balance, shares at Feb. 22, 2013	125,200,000							125,164,587