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Income Taxes
6 Months Ended
Jun. 30, 2011
Income Taxes  
Income Taxes
11. Income Taxes
     For the second quarter of 2011, income tax expense amounted to $32.7 million compared to $27.4 million in the second quarter of 2010. The effective tax rate for the Company, including the effect of non-controlling interest, was 32.1% in the current quarter compared to 31.5% in the same quarter last year. For the six months ended June 30, 2011 and 2010, income tax expense amounted to $60.2 million and $45.8 million, resulting in effective tax rates of 31.7% and 30.6%, respectively.