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Earnings Per Share (Tables)
9 Months Ended
Sep. 30, 2018
Earnings Per Share [Abstract]  
Calculation of our Basic and Diluted Earnings per share Calculation
The following table shows the information used in the calculation of our basic and diluted earnings per share calculation as of September 30, 2018 and December 31, 2017. See Note 12 "Stockholders' Equity" for details on our April 12, 2018 stock split and our common stock repurchase on August 13, 2018.
 
For the Three Months
Ended September 30,
 
For the Nine Months
Ended September 30,
 
2018
 
2017
 
2018
 
2017
 
 
 
 
 
 
 
 
Weighted average common shares
   outstanding for basic calculation
296,136,564

 
302,225,923

 
300,173,831

 
302,225,923

Add: Effect of stock options and restricted stock
8,889

 

 
4,873

 

Weighted average common shares
   outstanding for diluted calculation
296,145,453

 
302,225,923

 
300,178,704

 
302,225,923