Consolidated Statements Of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Interest Income
Interest and fees on loans	$ 143,399	$ 128,546	$ 114,563
Taxable interest on investments	19,509	17,727	16,879
Nontaxable interest on investments	2,701	2,648	2,764
Dividend income	722	1,315	1,135
Other interest income	2,187	1,141	763
Total interest income	168,518	151,377	136,104
Interest Expense
Interest on deposits	34,001	20,113	11,811
Interest on borrowings	3,621	7,456	5,585
Interest on subordinated debentures	3,266	3,415	3,408
Total interest expense	40,888	30,984	20,804
Net interest income	127,630	120,393	115,300
Provision for credit losses	2,861	847	3,035
Net interest income after provision for credit losses	124,769	119,546	112,265
Non-Interest Income
Mortgage banking income, net	7,837	5,914	7,363
Brokerage and insurance commissions	2,625	2,615	2,147
Bank-owned life insurance	2,425	2,430	2,370
Customer loan swap fees	1,166	956	1,574
Net (loss) gain on sale of securities	(105)	275	855
Other income	4,170	3,290	3,080
Total non-interest income	42,113	38,176	38,599
Non-Interest Expenses
Salaries and employee benefits	54,489	51,513	49,109
Furniture, equipment and data processing	10,881	10,359	9,894
Net occupancy costs	7,047	6,876	6,884
Consulting and professional fees	3,706	3,752	3,118
Debit card expense	3,613	3,180	2,755
Regulatory assessments	1,261	1,937	2,166
Amortization of intangible assets	705	725	1,809
Other real estate owned and collection costs, net	480	935	971
Other expenses	13,121	12,668	11,804
Total non-interest expense	95,303	91,945	88,510
Income before income tax expense	71,579	65,777	62,354
Income Tax Expense	14,376	12,706	33,878
Net income	$ 57,203	$ 53,071	$ 28,476
Per Share Data
Basic earnings per share	$ 3.70	$ 3.40	$ 1.83
Diluted earnings per share	$ 3.69	$ 3.39	$ 1.82
Weighted average number of common shares outstanding	15,407,289	15,571,387	15,509,665
Diluted weighted average number of common shares outstanding	15,453,022	15,626,303	15,588,347
Cash dividends declared, per share	$ 1.23	$ 1.15	$ 0.94
Debit Card
Non-Interest Income
Revenue	$ 9,701	$ 9,067	$ 8,079
Deposit Accounts
Non-Interest Income
Revenue	8,393	8,253	8,023
Fiduciary Services
Non-Interest Income
Revenue	$ 5,901	$ 5,376	$ 5,108