Consolidated Statements Of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Interest Income
Interest and fees on loans	$ 34,324	$ 41,335
Interest and dividends on investment securities:
Taxable	5,242	5,871
Tax-exempt	1,253	707
Interest on deposits in depository institutions	118	304
Total Interest Income	40,937	48,217
Interest Expense
Interest on deposits	3,280	7,238
Interest on short-term borrowings	117	464
Interest on long-term debt	0	100
Total Interest Expense	3,397	7,802
Net Interest Income	37,540	40,415
(Recovery of) provision for credit losses	(440)	7,972
Net Interest Income After (Recovery of) Provision for Credit Losses	37,980	32,443
Non-Interest Income
Gains on sale of investment securities, net	283	63
Unrealized losses recognized on equity securities still held	(51)	(2,402)
Bank owned  life insurance	1,460	1,676
Sale of VISA shares	0	17,837
Other income	811	1,536
Total Non-Interest Income	16,630	33,347
Non-Interest Expense
Salaries and employee benefits	15,671	15,851
Occupancy related expense	2,622	2,488
Equipment and software related expense	2,544	2,429
FDIC insurance expense	405	0
Advertising	881	843
Bankcard expenses	1,584	1,435
Postage, delivery, and statement mailings	592	616
Office supplies	392	394
Legal and professional fees	675	601
Telecommunications	690	511
Repossessed asset losses, net of expenses	79	198
Other expenses	3,674	4,102
Total Non-Interest Expense	29,809	29,468
Income Before Income Taxes	24,801	36,322
Income tax expense	4,987	7,322
Net Income Available to Common Shareholders	$ 19,814	$ 29,000
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Average common shares outstanding, basic (in shares)	15,656	16,080
Effect of dilutive securities (in shares)	31	21
Average common shares outstanding, diluted (in shares)	15,687	16,101
Earnings Per Share [Abstract]
Basic earnings per common share (in dollars per share)	$ 1.25	$ 1.79
Diluted earnings per common share (in dollars per share)	$ 1.25	$ 1.78
Service charges
Non-Interest Income
Revenue from contract with customer	$ 5,881	$ 7,723
Bankcard revenue
Non-Interest Income
Revenue from contract with customer	6,213	5,115
Trust and investment management fee income
Non-Interest Income
Revenue from contract with customer	$ 2,033	$ 1,799