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Earnings Per Share
 12 Months Ended
Feb. 22, 2013
Earnings Per Share [Abstract]  
Earnings Per Share
EARNINGS PER SHARE
Earnings per share is computed using the two-class method. The two-class method determines earnings per share for each class of common stock and participating securities according to dividends or dividend equivalents and their respective participation rights in undistributed earnings. Participating securities include performance units and restricted stock units in which the participants have non-forfeitable rights to dividends or dividend equivalents during the performance period. Diluted earnings per share includes the effects of options and certain performance units in which the participants have forfeitable rights to dividends or dividend equivalents during the performance period.
Computation of Earnings per Share
Year Ended
February 22,
2013
February 24,
2012
February 25,
2011
Net income
$
38.8

 
$
56.7

 
$
20.4

 
Adjustment for earnings attributable to participating securities
(0.6
)
 
(1.0
)
 
(0.3
)
 
Net income used in calculating earnings per share
$
38.2

 
$
55.7

 
$
20.1

 
Weighted-average common shares outstanding including participating securities (in millions)
127.4

 
131.9

 
132.9

 
Adjustment for participating securities (in millions)
(1.8
)
 
(2.3
)
 
(2.0
)
 
Shares used in calculating basic earnings per share (in millions)
125.6

 
129.6

 
130.9

 
Effect of dilutive stock-based compensation (in millions)
1.7

 
—

 
—

 
Shares used in calculating diluted earnings per share (in millions)
127.3

 
129.6

 
130.9

 
Earnings per share:
 
 
 
 
 
 
Basic
$
0.30

 
$
0.43

 
$
0.15

 
Diluted
$
0.30

 
$
0.43

 
$
0.15

 
Total common shares outstanding at period end (in millions)
125.2

 
126.5

 
132.2

 
Anti-dilutive options and performance units excluded from computation of diluted earnings per share (in millions)
—

 
3.5

 
3.3