Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	$ 81,825	$ 84,137	$ 62,210
Adjustments to Reconcile Net Income to Net Cash from Operating Activities:
Net Amortization on Securities	6,452	6,638	5,671
Depreciation and Amortization	10,116	8,770	9,429
Loans Originated for Sale	(162,959)	(261,529)	(317,032)
Proceeds from Sales of Loans Held-for-Sale	171,591	276,417	327,172
Provision for Credit Losses	6,350	(6,500)	17,550
Gain on Sale of Loans, net	(3,818)	(8,267)	(9,908)
Gain on Securities, net	(562)	(2,247)	(4,081)
Loss (Gain) on Sales of Other Real Estate and Repossessed Assets	(18)	(101)	28
Loss (Gain) on Disposition and Donation of Premises and Equipment	(37)	1,640	223
Loss (Gain) on Disposition of Land	0	0	43
Post Retirement Medical Benefit	54	0	0
Increase in Cash Surrender Value of Company Owned Life Insurance	(1,820)	(1,369)	(1,449)
Equity Based Compensation	2,330	1,724	1,051
Excess Tax Benefit from Restricted Share Grant	0	0	3
Change in Assets and Liabilities:
Interest Receivable and Other Assets	(1,094)	2,716	(2,925)
Interest Payable and Other Liabilities	1,626	(1,185)	4,433
Net Cash from Operating Activities	110,036	100,844	92,418
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from Maturity of Other Short-term Investments	495	496	744
Proceeds from Maturities of Securities Available-for-Sale	143,418	208,156	200,968
Proceeds from Sales of Securities Available-for-Sale	145,237	111,124	125,106
Purchase of Securities Available-for-Sale	(417,940)	(1,020,695)	(664,989)
Proceeds from Redemption of Federal Home Loan Bank Stock	8,089	120	800
Purchase of Loans	(933)	0	0
Proceeds from Sales of Loans Held for Investment	3,916	0	3,128
Loans Made to Customers, net of Payments Received	(107,236)	59,557	(10,114)
Proceeds from Sales of Other Real Estate	88	1,423	340
Property and Equipment Expenditures	(7,852)	(4,686)	(7,071)
Proceeds from Sale of Land and Building	0	1,963	3,928
Proceeds from Life Insurance	773	549	1,082
Sale of Bank Branches	0	1,694	0
Acquisition of Citizens Union Bancorp of Shelbyville, Inc.	207,764	0	0
Net Cash from Investing Activities	(24,181)	(640,299)	(346,078)
CASH FLOWS FROM FINANCING ACTIVITIES
Change in Deposits	(324,771)	655,485	676,906
Change in Short-term Borrowings	29,817	15,423	(114,832)
Repayments of Long-term Debt	(41,690)	(58,091)	(40,625)
Issuance (Retirement) of Common Stock	0	0	(5,789)
Dividends Paid	(27,022)	(22,220)	(20,136)
Net Cash from Financing Activities	(363,666)	590,597	495,524
Net Change in Cash and Cash Equivalents	(277,811)	51,142	241,864
Cash and Cash Equivalents at Beginning of Year	396,890	345,748	103,884
Cash and Cash Equivalents at End of Year	119,079	396,890	345,748
Cash Paid During the Year for
Interest	17,442	10,020	20,484
Income Taxes	11,649	14,434	11,505
Supplemental Non Cash Disclosures
Loans Transferred to Other Real Estate	30	0	0
Interest Rate Swap Fair Value Activity	4,988	(4,287)	6,199
Supplemental Schedule for Investing Activities (See Note 18 for Business Combinations)
Assets acquired, net of purchase consideration	945,160	0	0
Liabilities assumed	1,003,756	0	0
Goodwill	$ 58,596	$ 0	$ 0