Loans - Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Allowance for Credit Losses [Roll Forward]
Beginning balance	$ 44,168	$ 37,017
Acquisition of Citizens Union Bank of Shelbyville, KY		3,117
Provision (Benefit) for Credit Losses	1,100	5,200
Loans charged-off	(1,238)	(369)
Recoveries collected	285	113
Total ending allowance balance	44,315	45,078
Commercial and Industrial Loans
Allowance for Credit Losses [Roll Forward]
Beginning balance	13,749	9,554
Acquisition of Citizens Union Bank of Shelbyville, KY		376
Provision (Benefit) for Credit Losses	501	2,788
Loans charged-off	(733)	(5)
Recoveries collected	55	7
Total ending allowance balance	13,572	12,720
Commercial Real Estate Loans
Allowance for Credit Losses [Roll Forward]
Beginning balance	21,598	19,245
Acquisition of Citizens Union Bank of Shelbyville, KY		1,945
Provision (Benefit) for Credit Losses	402	2,095
Loans charged-off	0	(78)
Recoveries collected	62	10
Total ending allowance balance	22,062	23,217
Agricultural Loans
Allowance for Credit Losses [Roll Forward]
Beginning balance	4,188	4,505
Acquisition of Citizens Union Bank of Shelbyville, KY		689
Provision (Benefit) for Credit Losses	(301)	(435)
Loans charged-off	0	0
Recoveries collected	0	0
Total ending allowance balance	3,887	4,759
Leases
Allowance for Credit Losses [Roll Forward]
Beginning balance	209	200
Acquisition of Citizens Union Bank of Shelbyville, KY		0
Provision (Benefit) for Credit Losses	18	(4)
Loans charged-off	0	0
Recoveries collected	0	0
Total ending allowance balance	227	196
Consumer Loans
Allowance for Credit Losses [Roll Forward]
Beginning balance	595	507
Acquisition of Citizens Union Bank of Shelbyville, KY		2
Provision (Benefit) for Credit Losses	226	225
Loans charged-off	(345)	(210)
Recoveries collected	133	92
Total ending allowance balance	609	616
Home Equity Loans
Allowance for Credit Losses [Roll Forward]
Beginning balance	1,344	1,061
Acquisition of Citizens Union Bank of Shelbyville, KY		0
Provision (Benefit) for Credit Losses	54	183
Loans charged-off	(14)	(37)
Recoveries collected	31	0
Total ending allowance balance	1,415	1,207
Credit Cards
Allowance for Credit Losses [Roll Forward]
Beginning balance	257	240
Acquisition of Citizens Union Bank of Shelbyville, KY		0
Provision (Benefit) for Credit Losses	125	7
Loans charged-off	(120)	(39)
Recoveries collected	1	4
Total ending allowance balance	263	212
Residential Mortgage Loans
Allowance for Credit Losses [Roll Forward]
Beginning balance	2,228	1,705
Acquisition of Citizens Union Bank of Shelbyville, KY		105
Provision (Benefit) for Credit Losses	75	341
Loans charged-off	(26)	0
Recoveries collected	3	0
Total ending allowance balance	2,280	2,151
Unallocated
Allowance for Credit Losses [Roll Forward]
Beginning balance	0	0
Acquisition of Citizens Union Bank of Shelbyville, KY		0
Provision (Benefit) for Credit Losses	0	0
Loans charged-off	0	0
Recoveries collected	0	0
Total ending allowance balance	$ 0	$ 0