Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
INTEREST INCOME
Interest and Fees on Loans	$ 139,151	$ 151,658	$ 152,481
Interest on Federal Funds Sold and Other Short-term Investments	488	382	522
Interest and Dividends on Securities:
Taxable	12,962	10,447	13,910
Non-taxable	17,778	11,882	9,561
TOTAL INTEREST INCOME	170,379	174,369	176,474
INTEREST EXPENSE
Interest on Deposits	4,955	13,696	23,805
Interest on FHLB Advances and Other Borrowings	4,594	5,430	7,444
TOTAL INTEREST EXPENSE	9,549	19,126	31,249
NET INTEREST INCOME	160,830	155,243	145,225
Provision for Credit Losses	(6,500)	17,550	5,325
NET INTEREST INCOME AFTER PROVISION FOR CREDIT LOSSES	167,330	137,693	139,900
NON-INTEREST INCOME
Company Owned Life Insurance	1,529	2,307	2,005
Other Operating Income	6,991	3,388	3,229
Net Gains on Sales of Loans	8,267	9,908	4,633
Net Gains on Securities	2,247	4,081	1,248
TOTAL NON-INTEREST INCOME	59,462	54,474	45,501
NON-INTEREST EXPENSE
Salaries and Employee Benefits	68,570	68,112	63,885
Occupancy Expense	11,081	10,033	9,988
Furniture and Equipment Expense	3,750	3,991	3,788
FDIC Premiums	1,419	740	533
Data Processing Fees	7,611	6,889	7,927
Professional Fees	5,009	3,998	4,674
Advertising and Promotion	4,197	3,589	4,230
Intangible Amortization	2,731	3,539	3,721
Other Operating Expenses	19,639	16,232	15,416
TOTAL NON-INTEREST EXPENSE	124,007	117,123	114,162
Income before Income Taxes	102,785	75,044	71,239
Income Tax Expense	18,648	12,834	12,017
NET INCOME	$ 84,137	$ 62,210	$ 59,222
Basic Earnings per Share (in USD per share)	$ 3.17	$ 2.34	$ 2.29
Diluted Earnings per Share (in USD per share)	$ 3.17	$ 2.34	$ 2.29
Wealth Management and Investment Services Income
NON-INTEREST INCOME
Non-interest Income	$ 10,321	$ 8,005	$ 7,278
Service Charges on Deposit Accounts
NON-INTEREST INCOME
Non-interest Income	7,723	7,334	8,718
Insurance Revenues
NON-INTEREST INCOME
Non-interest Income	9,268	8,922	8,940
Interchange Fee Income
NON-INTEREST INCOME
Non-interest Income	$ 13,116	$ 10,529	$ 9,450