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Derivative Financial Instruments (Tables)
3 Months Ended
Mar. 31, 2012
Derivative Financial Instruments [Abstract]  
Fair values of derivative instruments recorded in Balance Sheet
                                                 
    Asset Derivatives    

Liability Derivatives

 
     March 31, 2012     December 31, 2011    

March 31, 2012

   

December 31, 2011

 
Derivatives designed as hedging
instruments
  Balance
Sheet
Location
  Fair
Value
    Balance
Sheet
Location
  Fair
Value
   

Balance

Sheet

Location

  Fair Value    

Balance

Sheet

Location

  Fair Value  

Interest rate swaps

      $ —           $ —       Fair value of derivative   $ —       Fair value of derivative   $ 3,530  
       

 

 

       

 

 

       

 

 

       

 

 

 
        $ —           $ —           $ —           $ 3,530  
       

 

 

       

 

 

       

 

 

       

 

 

 
Derivatives in fair value and cash flow hedging relationships
                                     

Derivatives in cash flow

hedging relationships

  Amount of Loss
Recognized in OCI on
Derivative
   

Location of Loss

Reclassified from

Accumulated OCI into

Income

  Amount of Loss
Reclassified from
Accumulated OCI into
Income
 
    2012     2011         2012     2011  
    (in thousands)         (in thousands)  

Interest rate swaps

  $ (176   $ (98   Interest expense   $ (2,683   $ (752