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Earnings Per Share (Tables)
6 Months Ended
Jun. 30, 2016
Earnings Per Share [Abstract]  
Reconciliation of the average shares outstanding used to compute basic and diluted earnings per share
The following is a reconciliation of the average shares outstanding used to compute basic and diluted earnings per share:
 
Three Months Ended
June 30,
 
Six Months Ended
June 30,
 
2016
 
2015
 
2016
 
2015
Basic weighted average common shares outstanding
137,138,220

 
136,130,861

 
136,869,066

 
135,887,738

Effect of dilutive securities

 
1,855,038

 

 
1,543,827

Diluted weighted average common shares outstanding
137,138,220

 
137,985,899

 
136,869,066

 
137,431,565