Consolidated Balance Sheets (Parentheticals) - $ / shares shares in Thousands	Mar. 03, 2018	Feb. 25, 2017
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	1,000	1,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	900,000	900,000
Common stock, shares issued (in shares)	341,795	339,533
Common stock, shares outstanding (in shares)	140,498	146,274