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NET EARNINGS PER SHARE (Tables)
3 Months Ended
Mar. 31, 2015
NET EARNINGS PER SHARE [Abstract]  
Reconciliation of the net earnings and shares used in calculating basic and diluted net earnings per share
The following presents a reconciliation of the net earnings and shares used in calculating basic and diluted net earnings per share:

Three months ended March 31, 2015
 
Net
Earnings
(Numerator)
  
Number of
Shares
(Denominator)
  
Per Share
Amount
 
Basic EPS – Net earnings and weighted average common shares outstanding
 
$
15,172
   
30,842,208
  
$
.49
 
             
Effect of dilutive securities – stock options and restricted stock
      
616,096
     
             
Diluted EPS – Net earnings and weighted average common shares outstanding and effect of stock options and restricted stock
 
$
15,172
   
31,458,304
  
$
.48
 

Three months ended March 31, 2014
 
Net
Earnings
(Numerator)
  
Number of
Shares
(Denominator)
  
Per Share
Amount
 
Basic EPS – Net earnings and weighted average common shares outstanding
 
$
8,894
   
30,146,705
  
$
.30
 
             
Effect of dilutive securities – stock options and restricted stock
      
932,299
     
             
Diluted EPS – Net earnings and weighted average common shares outstanding and effect of stock options and restricted stock
 
$
8,894
   
31,079,004
  
$
.29