Income Taxes - Reconciliation Between The Amount Of Reported Total Income Tax Expense And The Amount Computed By Multiplying The Applicable Statutory Income Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Tax expense at statutory rate of 35%	$ 11,027	$ 11,242	$ 10,459
Increase (decrease) in taxes resulting from:
State tax, net of federal income tax	1,615	1,519	651
Bank owned life insurance	(1,319)	(1,366)	(1,262)
Merger related costs	201	0	0
Incentive stock options	210	134	149
Uncertain tax position	51	131	448
Other, net	190	196	291
Income tax expense	$ 11,975	$ 11,856	$ 10,736
Statutory Rate	35.00%	35.00%	35.00%