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Earnings per Share Level 3 (Tables)
6 Months Ended
Jun. 30, 2013
Earnings Per Share [Abstract]  
Schedule of Weighted Average Number of Shares [Table Text Block]
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