Income Taxes (Tables)

3 Months Ended

Mar. 31, 2015

Income Taxes

Schedule of analysis of the difference between the statutory and effective tax rates from operations

	Three months ended March 31,
	2015		2014
U.S. federal statutory tax rate	35.0	%	35.0	%
Tax credits	(2.4	)	(1.6	)
Tax exempt interest income	(1.4	)	(1.7	)
Cash surrender value of life insurance	(1.0	)	(2.0	)
State income taxes	0.9		1.0
Other, net	0.4		0.1
Effective tax rate	31.5	%	30.8	%