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STOCK-BASED COMPENSATION (Tables)
9 Months Ended
Sep. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of the total number, weighted average grant-date fair value, and types of awards granted
The following table summarizes the total number and type of awards granted during the three and nine months ended September 30, 2013, as well as the related weighted-average grant-date fair values:
 
 
Three Months Ended
 
Nine Months Ended
 
 
September 30, 2013
 
September 30, 2013
 
 
Shares
 
Weighted Average
Grant-Date
Fair Value
 
Shares
 
Weighted Average
Grant-Date
Fair Value
Restricted stock awards
 
27,890

 
$
57.88

 
287,882

 
$
55.21

Performance stock awards
 
1,468

 
$
55.29

 
114,453

 
$
54.27

Total awards
 
29,358

 
 

 
402,335