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Earnings Per Share Earnings Per Share Tables (Tables)
3 Months Ended
Mar. 31, 2015
Earnings Per Share [Abstract]  
Schedule of Weighted Average Number of Shares
Weighted average shares-basic and diluted for the three months ended March 31, 2015 and 2014, respectively, are as follows (in thousands):
 
Three Months Ended March 31,
 
 
2015
 
2014
 
Weighted average shares — basic
216,568

 
191,739

 
Dilutive potential common shares — stock options
186

 
213

 
Weighted average shares — diluted
216,754

 
191,952

 
Weighted average anti-dilutive stock options
1,553

 
2,200