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Earnings per Share Level 1 (Notes)
6 Months Ended
Jun. 30, 2013
Earnings Per Share [Abstract]  
Earnings Per Share [Text Block]
EARNINGS PER SHARE

We compute basic earnings per common share by dividing net income available to common shareholders by the weighted average number of common shares outstanding during the period. Diluted earnings per common and potential common shares include additional shares in the weighted average share calculations associated with the incremental effect of dilutive employee stock options, restricted stock awards and contingently issuable shares, as determined using the treasury stock method. The
following table summarizes the calculation of weighted average common shares outstanding used in the computation of diluted earnings per share (in thousands):
 
Three Months Ended
 
Six Months Ended
 
June 30,
 
June 30,
 
2013
 
2012
 
2013
 
2012
 
(Unaudited)
 
(Unaudited)
Weighted average basic common shares outstanding
45,841

 
47,473

 
46,020

 
47,539

Effect of dilutive securities:
 
 
 
 
 
 
 
Stock options

 
11

 
2

 
12

Performance shares
116

 
133

 
105

 
124

Restricted stock
171

 
174

 
186

 
193

Weighted average diluted common and potential common shares outstanding
46,128

 
47,791

 
46,313

 
47,868