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Earnings Per Share Earnings Per Share Tables (Tables)
6 Months Ended
Jun. 30, 2015
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, 2015 and 2014, respectively, are as follows (in thousands):
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2015
 
2014
 
2015
 
2014
Weighted average shares — basic
216,630

 
198,440

 
216,599

 
195,108

Dilutive potential common shares — stock options
136

 

 
154

 
239

Weighted average shares — diluted
216,766

 
198,440

 
216,753

 
195,347

Weighted average anti-dilutive stock options
1,553

 
2,200

 
1,553

 
2,200