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Basic and Diluted Earnings Per Share (EPS) Data
 12 Months Ended
Dec. 31, 2012
Earnings Per Share [Abstract]  
Basic and Diluted Earnings Per Share (“EPS”) Data
Basic and Diluted Earnings Per Share (“EPS”) Data

The following table reconciles the denominator used to compute basic EPS to the denominator used to compute diluted EPS for the indicated periods:
 
 
Year ended December 31,
 
 
2012
 
2011
 
2010
 
 
 
 
 
 
 
Numerator:
 
 
 
 
 
 
Net income (loss) attributable to CDI
 
$
19,116

 
$
14,833

 
$
(10,858
)
Denominator:
 
 
 
 
 
 
Basic weighted-average shares
 
19,344

 
19,144

 
19,015

Dilutive effect of stock-based awards
 
401

 
212

 
—

Diluted weighted-average shares
 
19,745

 
19,356

 
19,015

Earnings (loss) per common share:
 
 
 
 
 
 
Basic
 
$
0.99

 
$
0.77

 
$
(0.57
)
Diluted
 
$
0.97

 
$
0.77

 
$
(0.57
)


There were 425 thousand, 729 thousand and 1,259 thousand shares excluded from the computation of EPS for the years ended December 31, 2012, 2011 and 2010, respectively, because their inclusion would have been anti-dilutive.