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DERIVATIVES AND HEDGING ACTIVITIES (Tables)
3 Months Ended
Mar. 31, 2012
Derivative Instruments And Hedging Activities Disclosure Abstract  
Schedule of derivatives outstanding
Type      Fixed  
Of Notional Effective LIBOR Expiration
Hedge Amount Date Rate Date
  (amounts      
  (in millions)      
          
Swap $ 100.0 May 28, 2008 3.62% May 28, 2012
Schedule of derivatives expired
Expired Derivatives
Year Ended December 31, 2011
Type        Fixed  
Of Notional Effective   LIBOR Expiration
Hedge Amount Date Collar Rate Date
  (amounts        
  (in millions)        
            
Swap $ 150.0 January 28, 2008 n/a 3.03% January 28, 2011
Collar   100.0 February 28, 2008[Cap 4.00%]February 28, 2011
   Floor 2.14%
Swap 0 125.0 March 28, 2008 n/a 2.91% September 28, 2011
    375.0        
Schedule of the gains (losses) related to the Company's cash flow hedge
  Three Months Ended
  March 31,
Description 2012 2011
  (amounts in thousands)
       
Type Of Derivative Designated As A Cash Flow Hedge  Interest Rate Interest Rate
Amount Of Gain (Loss) Recognized In OCI $ - $ 1,989
Location Of Gain (Loss) Reclassified From      
Accumulated OCI To Statement Of Operations Interest Expense Interest Expense
Amount Of Gain (Loss) Reclassified From       
Accumulated OCI To Statement Of Operations $ - $0
Location Of Gain (Loss) In Statement Of Operations Interest Expense Interest Expense
Amount Of Gain (Loss) In Statement Of Operations      
Due To Ineffectiveness $ 788 $0
Schedule of accumulated derivative gain (loss) recorded in the statements of other comprehensive income (loss)
 Fair Value Of Accumulated
 Derivatives Outstanding
 March 31, December 31,
 2012 2011
 Assets (Liabilities)
      
 (amounts in thousands)
      
Beginning balance as of January 1$0 $(7,277)
Net unrealized gain (loss) on derivatives,     
net of taxes (benefit) 0  7,277
Ending balance$0 $0
      
Schedule of the fair value of the derivatives outstanding
   Fair Value
   March 31, December 31,
 Balance Sheet 2012 2011
 Location Asset (Liability)
   (amounts in thousands)
Designated Derivatives       
Interest rate hedge transactionsCurrent liabilities $ (558) $ (1,346)