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Income Taxes	6 Months Ended
Income Taxes	Jun. 30, 2017
Income Taxes [Abstract]
Income Taxes	15. Income Taxes Our effective income tax rate for the six months ended June 30, 2017 and 2016 was 30.9% and 31.2%, respectively. The rates varied from the statutory tax rate primarily due to the amount of tax exempt income in relation to total pre-tax income.