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Earnings Per Common Share (Tables)
3 Months Ended
Mar. 31, 2018
Earnings Per Share [Abstract]  
Schedule of Basic Weighted Average Shares Reconciles to Diluted Weighted Average Shares
Basic weighted average shares outstanding reconciles to diluted weighted average shares outstanding as follows:
 
 
 
Three Months Ended 
 March 31,
 
 
2018
 
2017
Basic weighted average common shares outstanding
 
76,419

 
76,115

Dilutive effect of stock options, restricted stock and performance share units
 
1,320

 
779

Diluted weighted average common shares outstanding
 
77,739

 
76,894