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Lease Termination Exit Costs (Tables)
6 Months Ended
Jun. 30, 2011
Lease Termination Exit Costs [Abstract]  
Component of lease termination exit costs
                                 
            Other              
            Facility              
    Operating Lease     Related     Asset Write-        
    Obligation     Costs     Downs     Total  
Balance at March 31, 2011
    —       —       —       —  
Lease termination exit costs recorded
  $ 7,214,225     $ 2,781,697     $ 731,540     $ 10,727,462  
Reclassification of purchase accounting lease obligation
    4,351,433       —       —       4,351,433  
Cash Payments
    (662,403 )     (205,196 )             (867,599 )
Adjustments for non-cash items
    (392,589 )             (731,540 )     (1,124,129 )
 
                       
Ending accrual balance at June 30, 2011
  $ 10,510,666     $ 2,576,501     $ —     $ 13,087,167