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Income Taxes (Tables)
3 Months Ended
Mar. 31, 2012
Income Tax Disclosure [Abstract]  
Effective Tax Rate Reconcilion
A reconciliation between the expected federal income tax expense using the federal statutory tax rate and our actual income tax expense was as follows:
 
Three Months Ended March 31,
 
2012
 
2011
U.S. federal statutory tax rate
35.0
%
 
35.0
%
State income taxes, net of federal benefit
1.6

 
1.4

Other
1.8

 
2.0

Effective tax rate
38.4
%
 
38.4
%