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STOCK-BASED COMPENSATION PLANS (Tables)
 12 Months Ended
Dec. 31, 2013
STOCK-BASED COMPENSATION PLANS  
Summary of restricted stock activity

 

 
   Number of Nonvested
Restricted Shares		  

Balance, December 31, 2011

     283,608  

Awarded

     140,150  

Forfeited

     (21,398 )

Vested

     (159,236 )
       
​ ​ ​ ​ ​

Balance, December 31, 2012

     243,124  

Awarded

     423,518  

Forfeited

     (3,181 )

Vested

     (143,266 )
       
​ ​ ​ ​ ​

Balance, December 31, 2013

     520,195  
       
​ ​ ​ ​ ​
​ ​ ​ ​ ​