Loans - Aging of Past Due Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Total	$ 3,652,743	$ 3,007,926
Total Past Due
Financing Receivable, Past Due [Line Items]
Total	20,553	11,490
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	7,967	3,182
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	1,511	808
Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	11,075	7,500
Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Total	3,632,190	2,996,436
Commercial and Industrial Loans
Financing Receivable, Past Due [Line Items]
Total	587,460	493,005
Commercial and Industrial Loans | Total Past Due
Financing Receivable, Past Due [Line Items]
Total	7,948	6,159
Commercial and Industrial Loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	40	12
Commercial and Industrial Loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	46	0
Commercial and Industrial Loans | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	7,862	6,147
Commercial and Industrial Loans | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Total	579,512	486,846
Commercial Real Estate Loans
Financing Receivable, Past Due [Line Items]
Total	1,904,235	1,530,677
Commercial Real Estate Loans | Total Past Due
Financing Receivable, Past Due [Line Items]
Total	1,780	896
Commercial Real Estate Loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	1,151	0
Commercial Real Estate Loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	5
Commercial Real Estate Loans | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	629	891
Commercial Real Estate Loans | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Total	1,902,455	1,529,781
Agricultural Loans
Financing Receivable, Past Due [Line Items]
Total	397,524	358,150
Agricultural Loans | Total Past Due
Financing Receivable, Past Due [Line Items]
Total	1,271	0
Agricultural Loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	38	0
Agricultural Loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	71	0
Agricultural Loans | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	1,162	0
Agricultural Loans | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Total	396,253	358,150
Leases
Financing Receivable, Past Due [Line Items]
Total	54,036	55,345
Leases | Total Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Leases | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Leases | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Leases | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	0	0
Leases | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Total	54,036	55,345
Home Equity Loans
Financing Receivable, Past Due [Line Items]
Total	261,019	222,525
Home Equity Loans | Total Past Due
Financing Receivable, Past Due [Line Items]
Total	1,211	479
Home Equity Loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	636	225
Home Equity Loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	342	229
Home Equity Loans | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	233	25
Home Equity Loans | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Total	259,808	222,046
Consumer Loans
Financing Receivable, Past Due [Line Items]
Total	89,230	70,302
Consumer Loans | Total Past Due
Financing Receivable, Past Due [Line Items]
Total	1,163	220
Consumer Loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	1,079	158
Consumer Loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	18	58
Consumer Loans | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	66	4
Consumer Loans | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Total	88,067	70,082
Credit Cards
Financing Receivable, Past Due [Line Items]
Total	16,073	14,357
Credit Cards | Total Past Due
Financing Receivable, Past Due [Line Items]
Total	335	134
Credit Cards | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	224	61
Credit Cards | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	52	9
Credit Cards | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	59	64
Credit Cards | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Total	15,738	14,223
Residential Mortgage Loans
Financing Receivable, Past Due [Line Items]
Total	343,166	263,565
Residential Mortgage Loans | Total Past Due
Financing Receivable, Past Due [Line Items]
Total	6,845	3,602
Residential Mortgage Loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	4,799	2,726
Residential Mortgage Loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	982	507
Residential Mortgage Loans | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	1,064	369
Residential Mortgage Loans | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Total	$ 336,321	$ 259,963