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Schedule of Valuation and Qualifying Accounts
12 Months Ended
Dec. 31, 2011
Schedule of Valuation and Qualifying Accounts [Abstract]  
Schedule of Valuation and Qualifying Accounts Schedule of Valuation and Qualifying Accounts

Schedule II — Schedule of Valuation and Qualifying Accounts

 

                                 

Description

  Balance
January 1,
    Charged to
Expenses
(Benefit)
    Write-offs/
Payments/
Other
    Balance
December 31,
 
(in thousands)      

2009

                               
         

Allowance for doubtful accounts

  $ 10,860       30,602       (32,795   $ 8,667  
         

Deferred tax assets — valuation allowance

  $ 3,476,583       138,749           $ 3,615,332  
         

2010

                               
         

Allowance for doubtful accounts

  $ 8,667       32,379       (30,824   $ 10,222  
         

Deferred tax assets — valuation allowance

  $ 3,615,332       (21,749     (42,295   $ 3,551,288  
         

2011

                               
         

Allowance for doubtful accounts

  $ 10,222       33,164       (33,454   $ 9,932  
         

Deferred tax assets — valuation allowance

  $ 3,551,288       (166,452     (24,096   $ 3,360,740