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Income Taxes (Tables)
3 Months Ended
Mar. 31, 2012
Income Taxes [Abstract]  
Reconciliation of the provision for income taxes computed at Federal statutory rates to the effective rates
The following is a reconciliation of the provision for income taxes computed at federal statutory rates to the effective rates:
 
     
For the three months ended
      March 31,
     
2012
 
2011
           
Consolidated tax provision at federal statutory rate
   
35.0%
 
35.0%
State income tax provisions, net of federal income
         
    tax benefit
   
3.6
 
                  3.8
All other, net
   
(0.6)
 
                  0.6
Effective tax rate
   
38.0%
 
39.4%