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Weighted Average Common Shares (Tables)
9 Months Ended
Sep. 30, 2018
Earnings Per Share [Abstract]  
Schedule of reconciliation weighted average common shares to calculate basic and diluted earnings per share
The following table provides a reconciliation of the weighted average number of common shares used in the calculation of basic and diluted earnings per share:
 
 
For the Three Months Ended September 30,
 
For the Nine Months Ended September 30,
 
 
2018
 
2017
 
2018
 
2017
 
 
(in thousands)
Weighted average common shares for basic earnings per share
 
164,232

 
164,149

 
164,212

 
164,131

Effect of dilutive securities: Unvested share awards
 
42

 
39

 
30

 
37

Weighted average common shares for diluted earnings per share
 
164,274

 
164,188

 
164,242

 
164,168