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Income Taxes
3 Months Ended
Mar. 31, 2016
Income Taxes [Abstract]  
Income Taxes

16.   Income Taxes



Our effective income tax rate for the first three months ended March 31, 2016 and 2015 was 32.0% and 30.5%, respectively. The rates varied from the statutory tax rate primarily due to the amount of tax exempt income in relation to pre-tax income.