Consolidated Statements Of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Interest Income
Interest and fees on loans	$ 42,279	$ 32,918
Interest and dividends on investment securities:
Taxable	5,689	3,981
Tax-exempt	779	703
Interest on deposits in depository institutions	186	42
Total Interest Income	48,933	37,644
Interest Expense
Interest on deposits	7,767	4,326
Interest on short-term borrowings	1,052	460
Interest on long-term debt	48	211
Total Interest Expense	8,867	4,997
Net Interest Income	40,066	32,647
(Recovery of) provision for loan losses	(849)	181
Net Interest Income After (Recovery of) Provision for Loan Losses	40,915	32,466
Non-Interest Income
Gains on sale of investment securities, net	88	0
Unrealized gains recognized on securities still held	75	280
Bank owned life insurance	1,016	821
Other income	814	627
Total Non-Interest Income	15,925	14,492
Non-Interest Expense
Salaries and employee benefits	15,243	13,241
Occupancy related expense	2,732	2,404
Equipment and software related expense	2,191	1,831
FDIC insurance expense	291	315
Advertising	869	787
Bankcard expenses	1,182	1,076
Postage, delivery, and statement mailings	624	578
Office supplies	386	313
Legal and professional fees	521	450
Telecommunications	726	500
Repossessed asset losses, net of expenses	216	370
Merger related costs	250	0
Other expenses	4,180	3,072
Total Non-Interest Expense	29,411	24,937
Income Before Income Taxes	27,429	22,021
Income tax expense	5,810	4,405
Net Income Available to Common Shareholders	21,619	17,616
Total Comprehensive Income	$ 30,250	$ 9,398
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Average common shares outstanding, basic (in shares)	16,411	15,414
Effect of dilutive securities (in shares)	18	22
Average common shares outstanding, diluted (in shares)	16,429	15,436
Earnings Per Share [Abstract]
Basic earnings per common share (in dollars per share)	$ 1.31	$ 1.13
Diluted earnings per common share (in dollars per share)	1.30	1.13
Dividends declared per common share (in dollars per share)	$ 0.53	$ 0.46
Deposit Account [Member]
Non-Interest Income
Revenue from contract with customer	$ 7,321	$ 6,862
Debit Card [Member]
Non-Interest Income
Revenue from contract with customer	4,969	4,334
Fiduciary and Trust [Member]
Non-Interest Income
Revenue from contract with customer	$ 1,642	$ 1,568