Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Statutory rate	35.00%	35.00%	35.00%
Increase (decrease) in rate due to:
Interest on tax-exempt securities and tax-free loans, net	(2.75%)	(2.77%)	(3.16%)
Merger expenses at acquisition	0.00%	0.00%	0.54%
Reduction in excess tax reserves	0.00%	0.00%	0.11%
Bank owned life insurance	(1.76%)	(2.10%)	(2.53%)
State income tax (net)	0.59%	0.91%	0.87%
Tax credits	(0.82%)	(0.96%)	(1.06%)
ESOP Dividends	(0.14%)	(0.13%)	(0.14%)
Nondeductible meals and entertainment	0.25%	0.22%	0.27%
Other	(0.66%)	(0.18%)	0.31%
Effective tax rates	29.71%	29.99%	30.21%