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STOCK-BASED COMPENSATION (Tables)
3 Months Ended
Mar. 31, 2012
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-month period ended March 31, 2012, as well as the related weighted-average grant-date fair values:
 
 
Shares
 
Weighted Average
Grant-Date
Fair Value
Restricted stock awards
 
47,507

 
$
67.33

Performance stock awards
 
68,719

 
$
67.33

Total awards
 
116,226