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Fair Value (Tables)
9 Months Ended
Sep. 30, 2011
Fair Value [Abstract] 
Assets And Liabilities Measured At Fair Value

Fair Value at September 30, 2011

          Level 1                 Level 2                 Level 3      

Money market funds and certificates of deposit

  $     30,373     $     -     $     -  

Fair Value at December 31, 2010

                             

Money market funds and certificates of deposit

  $     41,598     $     -     $     -  

Interest rate swap liability

  $     -     $     (896   $     -  

Assets held for sale, net of liabilities held for sale

  $     -     $     -     $     43,634