Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities:
Net income	$ 7,943	$ 7,618
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,477	1,487
Net amortization of premiums on securities	824	714
Provision for loan losses	2,781	2,368
Share-based compensation	239	129
Deferred income tax expense	679	131
Proceeds from sale of loans held for sale	1,663	4,144
Originations of loans held for sale	(2,662)	(3,245)
Income on company owned life insurance	(445)	(1,368)
Net gain on sale of loans held for sale	(48)	(78)
Net gain on investment securities	(206)	(613)
Net loss (gain) on other assets	2	(4)
(Increase) decrease in other assets	(2,013)	5,804
Decrease in other liabilities	(2,937)	(127)
Net cash provided by operating activities	7,297	16,960
Cash flows from investing activities:
Purchases of available for sale securities	(22,544)	(119,597)
Purchases of held to maturity securities	(16,276)	(3,612)
Proceeds from principal payments, maturities and calls on available for sale securities	10,566	48,280
Proceeds from principal payments, maturities and calls on held to maturity securities	14,470	12,381
Proceeds from sales of securities available for sale	12,350	17,627
Net loan originations	(65,100)	(33,297)
Proceeds from company owned life insurance, net of purchases	(7)	2,451
Proceeds from sales of other assets	27	109
Purchases of premises and equipment	(5,290)	(2,460)
Cash consideration paid for acquisition, net of cash acquired		(868)
Net cash used in investing activities	(71,804)	(78,986)
Cash flows from financing activities:
Net increase in deposits	174,437	229,646
Net decrease in short-term borrowings	(28,200)	(113,900)
Purchases of common stock for treasury	(148)
Proceeds from stock options exercised	243	288
Cash dividends paid to common and preferred shareholders	(3,403)	(3,185)
Net cash provided by financing activities	142,929	112,849
Net increase in cash and cash equivalents	78,422	50,823
Cash and cash equivalents, beginning of period	71,277	60,121
Cash and cash equivalents, end of period	149,699	110,944
Supplemental information:
Cash paid for interest	2,597	2,096
Cash paid for income taxes	4,500	500
Noncash investing and financing activities:
Real estate and other assets acquired in settlement of loans		140
Accrued and declared unpaid dividends	3,408	3,248
Increase (decrease) in net unsettled security purchases	$ 740	(170)
Common stock issued for acquisition		8,100
Assets acquired and liabilities assumed in business combinations:
Fair value of assets acquired		4,848
Fair value of liabilities assumed		$ 1,845