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Earnings (Loss) Per Share
 3 Months Ended
Feb. 28, 2018
Earnings Per Share [Abstract]  
Earnings (Loss) Per Share
Earnings (Loss) Per Share

We compute basic earnings (loss) per share using the weighted average number of common shares outstanding. We compute diluted earnings (loss) per share using the weighted average number of common shares outstanding plus the effect of outstanding dilutive stock options, restricted stock units and deferred stock units, using the treasury stock method. The following table sets forth the calculation of basic and diluted earnings (loss) per share on an interim basis (in thousands, except per share data):

 
Three Months Ended
 
February 28,
2018
 
February 28,
2017
Net income (loss)
$
12,912

 
$
(525
)
Weighted average shares outstanding
46,529

 
48,733

Dilutive impact from common stock equivalents
947

 
—

Diluted weighted average shares outstanding
47,476

 
48,733

Basic earnings (loss) per share
$
0.28

 
$
(0.01
)
Diluted earnings (loss) per share
$
0.27

 
$
(0.01
)


We excluded stock awards representing approximately 344,000 shares and 2,340,000 shares of common stock from the calculation of diluted earnings (loss) per share in the three months ended February 28, 2018 and February 28, 2017, respectively, because these awards were anti-dilutive.