Loans - Risk Category of Loans by Class (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 3,652,743	$ 3,007,926
Commercial and Industrial Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2022-2021	94,547	141,348
2021-2020	128,328	58,826
2020-2019	51,258	61,110
2019-2018	57,925	30,716
2018-2017	27,045	17,321
Prior	71,120	51,934
Revolving Loans Amortized Cost Basis	157,237	131,750
Total	587,460	493,005
Commercial Real Estate Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2022-2021	156,102	406,528
2021-2020	525,881	264,011
2020-2019	294,175	172,601
2019-2018	181,284	147,700
2018-2017	165,226	157,144
Prior	542,795	355,996
Revolving Loans Amortized Cost Basis	38,772	26,697
Total	1,904,235	1,530,677
Agricultural Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2022-2021	36,791	46,224
2021-2020	54,082	50,447
2020-2019	57,750	28,048
2019-2018	32,754	27,597
2018-2017	26,679	31,811
Prior	117,096	84,741
Revolving Loans Amortized Cost Basis	72,372	89,282
Total	397,524	358,150
Leases
Financing Receivable, Credit Quality Indicator [Line Items]
2022-2021	8,242	19,689
2021-2020	16,720	12,706
2020-2019	11,127	12,990
2019-2018	11,125	5,599
2018-2017	3,865	2,473
Prior	2,957	1,888
Revolving Loans Amortized Cost Basis	0	0
Total	54,036	55,345
Pass \| Commercial and Industrial Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2022-2021	94,221	141,133
2021-2020	128,056	57,477
2020-2019	48,970	60,883
2019-2018	57,023	29,005
2018-2017	25,320	15,936
Prior	66,158	48,559
Revolving Loans Amortized Cost Basis	140,139	122,377
Total	559,887	475,370
Pass \| Commercial Real Estate Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2022-2021	152,123	404,175
2021-2020	524,183	264,011
2020-2019	289,249	164,204
2019-2018	179,881	131,746
2018-2017	147,216	139,788
Prior	500,418	336,066
Revolving Loans Amortized Cost Basis	38,772	26,697
Total	1,831,842	1,466,687
Pass \| Agricultural Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2022-2021	36,391	44,510
2021-2020	52,074	45,101
2020-2019	51,020	22,482
2019-2018	27,243	24,187
2018-2017	23,178	24,325
Prior	99,354	71,268
Revolving Loans Amortized Cost Basis	65,789	81,011
Total	355,049	312,884
Pass \| Leases
Financing Receivable, Credit Quality Indicator [Line Items]
2022-2021	8,242	19,689
2021-2020	16,720	12,706
2020-2019	11,127	12,990
2019-2018	11,125	5,599
2018-2017	3,865	2,473
Prior	2,957	1,888
Revolving Loans Amortized Cost Basis	0	0
Total	54,036	55,345
Special Mention \| Commercial and Industrial Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2022-2021	0	115
2021-2020	104	128
2020-2019	630	227
2019-2018	123	649
2018-2017	584	7
Prior	643	918
Revolving Loans Amortized Cost Basis	2,010	1,510
Total	4,094	3,554
Special Mention \| Commercial Real Estate Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2022-2021	3,128	2,279
2021-2020	1,512	0
2020-2019	4,926	710
2019-2018	137	14,426
2018-2017	15,795	17,356
Prior	34,773	13,916
Revolving Loans Amortized Cost Basis	0	0
Total	60,271	48,687
Special Mention \| Agricultural Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2022-2021	400	1,714
2021-2020	1,797	5,346
2020-2019	6,730	5,503
2019-2018	5,457	3,025
2018-2017	3,074	6,438
Prior	12,979	6,624
Revolving Loans Amortized Cost Basis	6,287	8,271
Total	36,724	36,921
Special Mention \| Leases
Financing Receivable, Credit Quality Indicator [Line Items]
2022-2021	0	0
2021-2020	0	0
2020-2019	0	0
2019-2018	0	0
2018-2017	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Substandard \| Commercial and Industrial Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2022-2021	326	100
2021-2020	168	1,221
2020-2019	1,658	0
2019-2018	779	1,062
2018-2017	1,141	1,378
Prior	4,319	2,457
Revolving Loans Amortized Cost Basis	15,088	7,863
Total	23,479	14,081
Substandard \| Commercial Real Estate Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2022-2021	851	74
2021-2020	186	0
2020-2019	0	7,687
2019-2018	1,266	1,528
2018-2017	2,215	0
Prior	7,604	6,014
Revolving Loans Amortized Cost Basis	0	0
Total	12,122	15,303
Substandard \| Agricultural Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2022-2021	0	0
2021-2020	211	0
2020-2019	0	63
2019-2018	54	385
2018-2017	427	1,048
Prior	4,763	6,849
Revolving Loans Amortized Cost Basis	296	0
Total	5,751	8,345
Substandard \| Leases
Financing Receivable, Credit Quality Indicator [Line Items]
2022-2021	0	0
2021-2020	0	0
2020-2019	0	0
2019-2018	0	0
2018-2017	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Doubtful \| Commercial and Industrial Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2022-2021	0	0
2021-2020	0	0
2020-2019	0	0
2019-2018	0	0
2018-2017	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Doubtful \| Commercial Real Estate Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2022-2021	0	0
2021-2020	0	0
2020-2019	0	0
2019-2018	0	0
2018-2017	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Doubtful \| Agricultural Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2022-2021	0	0
2021-2020	0	0
2020-2019	0	0
2019-2018	0	0
2018-2017	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	0	0
Doubtful \| Leases
Financing Receivable, Credit Quality Indicator [Line Items]
2022-2021	0	0
2021-2020	0	0
2020-2019	0	0
2019-2018	0	0
2018-2017	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Total	$ 0	$ 0

Amortized cost excluding accrued interest, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes net investment in lease.

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