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Stock-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2017
Stock-Based Compensation [Abstract]  
Schedule of Weighted Average Assumptions Used for Estimating the Grant-Date Fair Value of Each Option Grant
The fair value of stock options granted during the six months ended June 30, 2016 were established at the date of grant using a Black-Scholes option pricing model with the weighted average assumptions as follows:
 
    
  
Six Months Ended
June 30, 2016
 
Expected dividend yield
  
3.70
%
Risk-free interest rate
  
1.45
%
Expected volatility
  
34.34
%
Expected term (in years)
  
7.5
 
Weighted average fair value of options
 
$
6.82