Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	$ 62,210	$ 59,222	$ 46,529
Adjustments to Reconcile Net Income to Net Cash from Operating Activities:
Net Amortization on Securities	5,671	3,862	3,550
Depreciation and Amortization	9,429	8,630	6,184
Loans Originated for Sale	(317,032)	(198,326)	(131,916)
Proceeds from Sales of Loans Held-for-Sale	327,172	189,875	137,417
Provision for Credit Losses	17,550	5,325	2,070
Gain on Sale of Loans, net	(9,908)	(4,633)	(3,004)
Gain on Securities, net	(4,081)	(1,248)	(706)
Loss (Gain) on Sales of Other Real Estate and Repossessed Assets	28	200	(41)
Loss (Gain) on Disposition and Donation of Premises and Equipment	223	111	(36)
Loss (Gain) on Disposition of Land	43	(352)	44
Post Retirement Medical Benefit	0	(228)	(55)
Increase in Cash Surrender Value of Company Owned Life Insurance	(1,449)	(1,407)	(1,141)
Equity Based Compensation	1,051	1,287	1,355
Excess Tax Benefit from Restricted Share Grant	3	25	32
Change in Assets and Liabilities:
Interest Receivable and Other Assets	(2,925)	(1,602)	2,211
Interest Payable and Other Liabilities	4,433	4,488	(162)
Net Cash from Operating Activities	92,418	65,229	62,331
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from Maturity of Other Short-term Investments	744	496	0
Proceeds from Maturities of Securities Available-for-Sale	200,968	114,669	78,714
Proceeds from Sales of Securities Available-for-Sale	125,106	82,601	91,013
Purchase of Securities Available-for-Sale	(664,989)	(169,640)	(140,604)
Proceeds from Redemption of Federal Home Loan Bank Stock	800	1,145	2,607
Purchase of Loans	0	(2,051)	(1,209)
Proceeds from Sales of Loans	3,128	0	6,000
Loans Made to Customers, net of Payments Received	(10,114)	3,925	(87,127)
Proceeds from Sales of Other Real Estate	340	369	662
Property and Equipment Expenditures	(7,071)	(9,374)	(15,186)
Proceeds from Sales of Property and Equipment	0	0	40
Proceeds from Sale of Land and Building	3,928	1,761	393
Proceeds from Life Insurance	1,082	1,216	765
Acquisition of First Security, Inc.	0	0	(17,566)
Cash from Acquisitions	0	0	42,700
Net Cash from Investing Activities	(346,078)	30,662	(38,798)
CASH FLOWS FROM FINANCING ACTIVITIES
Change in Deposits	676,906	(13,007)	(11,112)
Change in Short-term Borrowings	(114,832)	(82,037)	42,999
Advances in Long-term Debt	0	89,214	25,000
Repayments of Long-term Debt	(40,625)	(65,171)	(40,155)
Issuance (Retirement) of Common Stock	(5,789)	0	0
Dividends Paid	(20,136)	(17,556)	(14,074)
Net Cash from Financing Activities	495,524	(88,557)	2,658
Net Change in Cash and Cash Equivalents	241,864	7,334	26,191
Cash and Cash Equivalents at Beginning of Year	103,884	96,550	70,359
Cash and Cash Equivalents at End of Year	345,748	103,884	96,550
Cash Paid During the Year for
Interest	20,484	30,765	18,239
Income Taxes	11,505	7,977	5,920
Supplemental Non Cash Disclosures (See Note 18 for Business Combinations)
Loans Transferred to Other Real Estate	0	708	398
Reclassification of Land and Buildings to Other Assets	0	5,712	850
Right of Use Asset Obtained in Exchange for Lease Liabilities	0	9,034
Citizens First Corporation
CASH FLOWS FROM INVESTING ACTIVITIES
Cash from Acquisitions	$ 0	$ 5,545	$ 0