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RESTRUCTURING (Tables)
6 Months Ended
Jun. 30, 2012
Restructuring and Related Activities [Abstract]  
Restructuring Activity and Balances
 
                       
   
December 31, 2011
Restructuring
Liability
   
Subsequent
Plan
Adjustments
   
Cash
Payments
   
June 30, 2012
Restructuring
Liability
Activity for 2011 restructuring charge:
                     
Real estate obligations
  $ 361     $ (67 )   $ (138 )   $ 156
Activity for 2007 restructuring charge:
                             
Real estate obligations
    5,162       261       (769     4,654
Activity for 2001 restructuring charge:
                             
Real estate obligations
    2,070       120       (388     1,802
                               
Total
  $ 7,593     $ 314     $ (1,295 )   $ 6,612