Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Interest Income
Interest and fees on loans	$ 212,693	$ 146,538	$ 136,676
Interest on investment securities:
Taxable	48,335	34,445	23,071
Tax-exempt	3,854	4,911	5,027
Interest on deposits in depository institutions	6,382	3,794	693
Total Interest Income	271,264	189,688	165,467
Interest Expense
Interest on deposits	37,287	7,444	9,405
Interest on short-term borrowings	12,027	2,211	489
Interest on FHLB long-term advances	2,709	0	0
Total Interest Expense	52,023	9,655	9,894
Net Interest Income	219,241	180,033	155,573
Provision for (recovery of) credit losses	3,243	474	(3,165)
Net Interest Income After Provision for (Recovery of) Credit Losses	215,998	179,559	158,738
Non-Interest Income
Net (losses) gains on sale of investment securities	(4,908)	4	312
Unrealized (losses) gains recognized on equity securities still held	432	(1,585)	504
Revenue	69,068	68,099	64,930
Bank owned  life insurance	6,037	5,559	3,895
Total Non-Interest Income	70,629	72,077	69,641
Non-Interest Expense
Salaries and employee benefits	73,163	66,536	61,850
Occupancy related expenses	11,318	10,718	10,083
Equipment and software related expenses	11,629	11,791	10,486
FDIC insurance expense	2,922	1,673	1,583
Advertising	3,112	3,405	3,091
Bankcard expenses	7,447	6,032	6,455
Postage, delivery, and statement mailings	2,526	2,362	2,323
Office supplies	1,945	1,744	1,547
Legal and professional fees	2,035	2,194	2,279
Telecommunications	2,411	2,616	2,858
Repossessed asset losses (gains), net of expenses	28	59	(57)
Merger related costs	5,150	268	0
Other expenses	19,835	14,904	14,687
Total Non-Interest Expense	143,521	124,302	117,185
Income Before Income Taxes	143,106	127,334	111,194
Income tax expense	28,741	25,263	23,114
Net Income Available to Common Shareholders	$ 114,365	$ 102,071	$ 88,080
Average shares outstanding, basic	14,868	14,847	15,381
Effect of dilutive securities	23	26	26
Average shares outstanding, diluted	14,891	14,873	15,407
Basic earnings per common share	$ 7.62	$ 6.81	$ 5.67
Diluted earnings per common share	$ 7.61	$ 6.80	$ 5.66
Service charges
Non-Interest Income
Revenue	$ 27,751	$ 28,335	$ 25,539
Bankcard revenue
Non-Interest Income
Revenue	27,960	27,349	26,987
Trust and investment management fee income
Non-Interest Income
Revenue	9,563	8,798	8,415
Other income
Non-Interest Income
Revenue	$ 3,794	$ 3,617	$ 3,989