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Earnings Per Share (Tables)
6 Months Ended
Jun. 30, 2013
Earnings Per Share [Abstract]  
Schedule of Weighted Average Number of Shares
Weighted average shares-basic and diluted for the three and six months ended June 30, 2013 and 2012 are as follows (in thousands):
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2013
 
2012
 
2013
 
2012
Weighted average shares — basic
118,661

 
104,165

 
111,430

 
104,082

Dilutive potential common shares — stock options

 

 
163

 

Weighted average shares — diluted
118,661

 
104,165

 
111,593

 
104,082

Weighted average anti-dilutive stock options
2,942

 
4,953

 
3,129

 
4,953