v2.3.0.15
INCOME TAXES (Tables)
9 Months Ended
Sep. 30, 2011
INCOME TAXES 
Schedule of income tax provision
  Three months ended   Nine months ended  
 
  September 30, 2011   September 30, 2010   September 30, 2011   September 30, 2010  

Current portion of income tax expense (benefit)

  $ 3,951   $ (4,018 ) $ 12,866   $ (1,031 )

Deferred portion of income tax expense

    12,596     12,205     42,600     19,369  
                   

Total income tax expense

  $ 16,547   $ 8,187   $ 55,466   $ 18,338