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Note 8 - Income Taxes
9 Months Ended
Sep. 30, 2014
Income Tax Disclosure [Abstract]  
Income Tax Disclosure [Text Block]

8.

Income Taxes


Our effective income tax rate was 38.10% for the three and nine months ended September 30, 2014, compared with 38.25% for the three months ended September 30, 2013 and 38.12% for the nine months ended September 30, 2013. In determining our quarterly provision for income taxes, we use an estimated annual effective tax rate, adjusted for discrete items. This rate is based on our expected annual income, statutory tax rates, best estimate of nontaxable and nondeductible items of income and expense, and the ultimate outcome of tax audits.


At September 30, 2014, we had a total of $32.4 million in gross unrecognized tax benefits, which are a component of other long-term liabilities on our balance sheet. Of this amount, $21.1 million represents the amount of unrecognized tax benefits that, if recognized, would impact our effective tax rate. The total amount of accrued interest and penalties for such unrecognized tax benefits was $5.5 million at September 30, 2014.