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Loans and Allowance for Credit Losses - Credit Risk Profile of Loan Portfolio Based on Risk Rating Category and Payment Activity (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Credit Quality Information [Abstract]
Current fiscal year	$ 862,051	$ 792,071
Fiscal year before current fiscal year	653,404	1,402,051
Two years before current fiscal year	1,261,147	994,108
Three years before current fiscal year	891,374	619,354
Four years before current fiscal year	546,507	381,174
Prior	1,377,588	1,315,596
Revolving Loans	80,391	76,211
Current period gross writeoffs, current fiscal year	108	10
Current period gross writeoffs, fiscal year before current fiscal year	2,369	761
Current period gross writeoffs, two year before current fiscal year	625	208
Current period gross writeoffs, three year before current fiscal year	602	51
Current period gross writeoffs, four year before current fiscal year	69	93
Current period gross writeoffs, prior	1,975	1,508
Current period gross writeoffs, revolving loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	5,672,462	5,580,565
Current period gross writeoffs, total loans receivables	5,748	2,631
Pass
Credit Quality Information [Abstract]
Current fiscal year	859,452	786,908
Fiscal year before current fiscal year	626,738	1,390,885
Two years before current fiscal year	1,245,490	976,531
Three years before current fiscal year	885,295	616,020
Four years before current fiscal year	542,310	376,655
Prior	1,340,099	1,254,871
Revolving Loans	79,714	75,700
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	5,579,098	5,477,570
Special Mention
Credit Quality Information [Abstract]
Current fiscal year	1,505	4,925
Fiscal year before current fiscal year	17,281	5,566
Two years before current fiscal year	6,668	15,110
Three years before current fiscal year	4,213	2,721
Four years before current fiscal year	3,488	3,368
Prior	24,634	42,350
Revolving Loans	59	10
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	57,848	74,050
Substandard
Credit Quality Information [Abstract]
Current fiscal year	1,094	238
Fiscal year before current fiscal year	9,385	5,600
Two years before current fiscal year	8,989	2,467
Three years before current fiscal year	1,866	613
Four years before current fiscal year	709	1,151
Prior	12,855	18,375
Revolving Loans	618	501
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	35,516	28,945
Agricultural Loans
Credit Quality Information [Abstract]
Current fiscal year	176,862	147,999
Fiscal year before current fiscal year	33,324	27,905
Two years before current fiscal year	16,332	10,044
Three years before current fiscal year	9,262	2,549
Four years before current fiscal year	1,585	1,921
Prior	2,306	5,854
Revolving Loans	0	0
Current period gross writeoffs, current fiscal year	0	0
Current period gross writeoffs, fiscal year before current fiscal year	2,213	276
Current period gross writeoffs, two year before current fiscal year	100	0
Current period gross writeoffs, three year before current fiscal year	52	0
Current period gross writeoffs, four year before current fiscal year	0	0
Current period gross writeoffs, prior	45	132
Current period gross writeoffs, revolving loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	239,671	196,272
Current period gross writeoffs, total loans receivables	2,410	408
Agricultural Loans | Pass
Credit Quality Information [Abstract]
Current fiscal year	175,402	147,993
Fiscal year before current fiscal year	24,024	27,895
Two years before current fiscal year	13,147	10,044
Three years before current fiscal year	9,162	2,549
Four years before current fiscal year	1,585	1,883
Prior	2,306	5,854
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	225,626	196,218
Agricultural Loans | Special Mention
Credit Quality Information [Abstract]
Current fiscal year	617	6
Fiscal year before current fiscal year	2,208	10
Two years before current fiscal year	976	0
Three years before current fiscal year	100	0
Four years before current fiscal year	0	38
Prior	0	0
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	3,901	54
Agricultural Loans | Substandard
Credit Quality Information [Abstract]
Current fiscal year	843	0
Fiscal year before current fiscal year	7,092	0
Two years before current fiscal year	2,209	0
Three years before current fiscal year	0	0
Four years before current fiscal year	0	0
Prior	0	0
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	10,144	0
Commercial Industrial And Other Portfolio Segment
Credit Quality Information [Abstract]
Current fiscal year	307,904	291,351
Fiscal year before current fiscal year	230,970	309,188
Two years before current fiscal year	280,911	242,971
Three years before current fiscal year	184,236	155,119
Four years before current fiscal year	132,123	74,532
Prior	369,008	377,607
Revolving Loans	0	0
Current period gross writeoffs, current fiscal year	10
Current period gross writeoffs, fiscal year before current fiscal year	47
Current period gross writeoffs, two year before current fiscal year	207
Current period gross writeoffs, three year before current fiscal year	378
Current period gross writeoffs, four year before current fiscal year	10
Current period gross writeoffs, prior	36
Current period gross writeoffs, revolving loans	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	1,505,152	1,450,768
Current period gross writeoffs, total loans receivables	688
Commercial Industrial And Other Portfolio Segment | Pass
Credit Quality Information [Abstract]
Current fiscal year	307,785	290,304
Fiscal year before current fiscal year	228,411	306,794
Two years before current fiscal year	278,845	232,198
Three years before current fiscal year	183,042	154,499
Four years before current fiscal year	131,005	73,906
Prior	360,610	347,957
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	1,489,698	1,405,658
Commercial Industrial And Other Portfolio Segment | Special Mention
Credit Quality Information [Abstract]
Current fiscal year	54	1,047
Fiscal year before current fiscal year	1,149	1,857
Two years before current fiscal year	1,277	9,982
Three years before current fiscal year	748	562
Four years before current fiscal year	1,020	597
Prior	7,583	28,900
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	11,831	42,945
Commercial Industrial And Other Portfolio Segment | Substandard
Credit Quality Information [Abstract]
Current fiscal year	65	0
Fiscal year before current fiscal year	1,410	537
Two years before current fiscal year	789	791
Three years before current fiscal year	446	58
Four years before current fiscal year	98	29
Prior	815	750
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	3,623	2,165
Consumer Loans
Credit Quality Information [Abstract]
Current fiscal year	5,110	9,633
Fiscal year before current fiscal year	5,159	40,656
Two years before current fiscal year	24,703	21,589
Three years before current fiscal year	12,026	10,526
Four years before current fiscal year	4,548	4,534
Prior	2,414	4,076
Revolving Loans	0	0
Current period gross writeoffs, current fiscal year	98	0
Current period gross writeoffs, fiscal year before current fiscal year	63	132
Current period gross writeoffs, two year before current fiscal year	154	208
Current period gross writeoffs, three year before current fiscal year	139	2
Current period gross writeoffs, four year before current fiscal year	59	20
Current period gross writeoffs, prior	1,491	1,206
Current period gross writeoffs, revolving loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	53,960	91,014
Current period gross writeoffs, total loans receivables	2,004	1,568
Consumer Loans | Pass
Credit Quality Information [Abstract]
Current fiscal year	5,098	9,547
Fiscal year before current fiscal year	5,138	40,225
Two years before current fiscal year	24,430	21,264
Three years before current fiscal year	11,810	10,387
Four years before current fiscal year	4,494	4,475
Prior	2,385	4,035
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	53,355	89,933
Consumer Loans | Special Mention
Credit Quality Information [Abstract]
Current fiscal year	0	0
Fiscal year before current fiscal year	0	26
Two years before current fiscal year	14	0
Three years before current fiscal year	0	0
Four years before current fiscal year	0	0
Prior	0	0
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	14	26
Consumer Loans | Substandard
Credit Quality Information [Abstract]
Current fiscal year	12	86
Fiscal year before current fiscal year	21	405
Two years before current fiscal year	259	325
Three years before current fiscal year	216	139
Four years before current fiscal year	54	59
Prior	29	41
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	591	1,055
Real Estate Loan
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	3,873,679	3,842,511
Real Estate Loan | Construction and Land Development
Credit Quality Information [Abstract]
Current fiscal year	82,696	68,086
Fiscal year before current fiscal year	101,715	74,065
Two years before current fiscal year	14,396	27,392
Three years before current fiscal year	15,817	5,188
Four years before current fiscal year	4,735	10,795
Prior	16,734	19,551
Revolving Loans	0	0
Current period gross writeoffs, current fiscal year	0	0
Current period gross writeoffs, fiscal year before current fiscal year	0	0
Current period gross writeoffs, two year before current fiscal year	0	0
Current period gross writeoffs, three year before current fiscal year	0	0
Current period gross writeoffs, four year before current fiscal year	0	14
Current period gross writeoffs, prior	0	0
Current period gross writeoffs, revolving loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	236,093	205,077
Current period gross writeoffs, total loans receivables	0	14
Real Estate Loan | Construction and Land Development | Pass
Credit Quality Information [Abstract]
Current fiscal year	82,696	68,086
Fiscal year before current fiscal year	101,715	74,065
Two years before current fiscal year	14,390	27,392
Three years before current fiscal year	15,817	5,188
Four years before current fiscal year	4,735	10,795
Prior	16,342	19,115
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	235,695	204,641
Real Estate Loan | Construction and Land Development | Special Mention
Credit Quality Information [Abstract]
Current fiscal year	0	0
Fiscal year before current fiscal year	0	0
Two years before current fiscal year	0	0
Three years before current fiscal year	0	0
Four years before current fiscal year	0	0
Prior	382	0
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	382	0
Real Estate Loan | Construction and Land Development | Substandard
Credit Quality Information [Abstract]
Current fiscal year	0	0
Fiscal year before current fiscal year	0	0
Two years before current fiscal year	6	0
Three years before current fiscal year	0	0
Four years before current fiscal year	0	0
Prior	10	436
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	16	436
Real Estate Loan | Agricultural
Credit Quality Information [Abstract]
Current fiscal year	25,824	19,437
Fiscal year before current fiscal year	17,625	164,812
Two years before current fiscal year	160,506	58,813
Three years before current fiscal year	56,069	53,249
Four years before current fiscal year	50,455	20,589
Prior	80,281	74,232
Revolving Loans	0	0
Current period gross writeoffs, current fiscal year	0	0
Current period gross writeoffs, fiscal year before current fiscal year	0	0
Current period gross writeoffs, two year before current fiscal year	0	0
Current period gross writeoffs, three year before current fiscal year	0	0
Current period gross writeoffs, four year before current fiscal year	0	0
Current period gross writeoffs, prior	0	0
Current period gross writeoffs, revolving loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	390,760	391,132
Current period gross writeoffs, total loans receivables	0	0
Real Estate Loan | Agricultural | Pass
Credit Quality Information [Abstract]
Current fiscal year	25,824	19,231
Fiscal year before current fiscal year	17,292	164,812
Two years before current fiscal year	159,433	57,815
Three years before current fiscal year	55,083	53,249
Four years before current fiscal year	48,700	19,419
Prior	73,592	71,189
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	379,924	385,715
Real Estate Loan | Agricultural | Special Mention
Credit Quality Information [Abstract]
Current fiscal year	0	206
Fiscal year before current fiscal year	192	0
Two years before current fiscal year	107	627
Three years before current fiscal year	986	0
Four years before current fiscal year	1,755	1,170
Prior	5,630	1,868
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	8,670	3,871
Real Estate Loan | Agricultural | Substandard
Credit Quality Information [Abstract]
Current fiscal year	0	0
Fiscal year before current fiscal year	141	0
Two years before current fiscal year	966	371
Three years before current fiscal year	0	0
Four years before current fiscal year	0	0
Prior	1,059	1,175
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	2,166	1,546
Real Estate Loan | Commercial And Multifamily Portfolio Segment
Credit Quality Information [Abstract]
Current fiscal year	216,956	189,294
Fiscal year before current fiscal year	227,485	686,704
Two years before current fiscal year	688,599	550,570
Three years before current fiscal year	537,576	319,254
Four years before current fiscal year	290,568	241,661
Prior	789,045	716,350
Revolving Loans	0	0
Current period gross writeoffs, current fiscal year	0	0
Current period gross writeoffs, fiscal year before current fiscal year	0	0
Current period gross writeoffs, two year before current fiscal year	151	0
Current period gross writeoffs, three year before current fiscal year	0	0
Current period gross writeoffs, four year before current fiscal year	0	25
Current period gross writeoffs, prior	300	0
Current period gross writeoffs, revolving loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	2,750,229	2,703,833
Current period gross writeoffs, total loans receivables	451	25
Real Estate Loan | Commercial And Multifamily Portfolio Segment | Pass
Credit Quality Information [Abstract]
Current fiscal year	216,297	185,628
Fiscal year before current fiscal year	213,704	680,099
Two years before current fiscal year	680,665	548,733
Three years before current fiscal year	535,056	317,075
Four years before current fiscal year	289,855	239,323
Prior	774,516	701,464
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	2,710,093	2,672,322
Real Estate Loan | Commercial And Multifamily Portfolio Segment | Special Mention
Credit Quality Information [Abstract]
Current fiscal year	659	3,666
Fiscal year before current fiscal year	13,732	2,706
Two years before current fiscal year	4,090	1,317
Three years before current fiscal year	2,053	2,159
Four years before current fiscal year	713	1,563
Prior	10,462	7,778
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	31,709	19,189
Real Estate Loan | Commercial And Multifamily Portfolio Segment | Substandard
Credit Quality Information [Abstract]
Current fiscal year	0	0
Fiscal year before current fiscal year	49	3,899
Two years before current fiscal year	3,844	520
Three years before current fiscal year	467	20
Four years before current fiscal year	0	775
Prior	4,067	7,108
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	8,427	12,322
Real Estate Loan | Agricultural Loans
Credit Quality Information [Abstract]
Current period gross writeoffs, current fiscal year		0
Current period gross writeoffs, fiscal year before current fiscal year		353
Current period gross writeoffs, two year before current fiscal year		0
Current period gross writeoffs, three year before current fiscal year		49
Current period gross writeoffs, four year before current fiscal year		20
Current period gross writeoffs, prior		107
Current period gross writeoffs, revolving loans		0
Loans Receivable Aging Analysis [Abstract]
Current period gross writeoffs, total loans receivables		529
1-4 Family | Real Estate Loan
Credit Quality Information [Abstract]
Current fiscal year	46,699	66,271
Fiscal year before current fiscal year	37,126	98,721
Two years before current fiscal year	75,700	82,729
Three years before current fiscal year	76,388	73,469
Four years before current fiscal year	62,493	27,142
Prior	117,800	117,926
Revolving Loans	80,391	76,211
Current period gross writeoffs, current fiscal year	0	10
Current period gross writeoffs, fiscal year before current fiscal year	46	0
Current period gross writeoffs, two year before current fiscal year	13	0
Current period gross writeoffs, three year before current fiscal year	33	0
Current period gross writeoffs, four year before current fiscal year	0	14
Current period gross writeoffs, prior	103	63
Current period gross writeoffs, revolving loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	496,597	542,469
Current period gross writeoffs, total loans receivables	195	87
1-4 Family | Real Estate Loan | Pass
Credit Quality Information [Abstract]
Current fiscal year	46,350	66,119
Fiscal year before current fiscal year	36,454	96,995
Two years before current fiscal year	74,580	79,085
Three years before current fiscal year	75,325	73,073
Four years before current fiscal year	61,936	26,854
Prior	110,348	105,257
Revolving Loans	79,714	75,700
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	484,707	523,083
1-4 Family | Real Estate Loan | Special Mention
Credit Quality Information [Abstract]
Current fiscal year	175	0
Fiscal year before current fiscal year	0	967
Two years before current fiscal year	204	3,184
Three years before current fiscal year	326	0
Four years before current fiscal year	0	0
Prior	577	3,804
Revolving Loans	59	10
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	1,341	7,965
1-4 Family | Real Estate Loan | Substandard
Credit Quality Information [Abstract]
Current fiscal year	174	152
Fiscal year before current fiscal year	672	759
Two years before current fiscal year	916	460
Three years before current fiscal year	737	396
Four years before current fiscal year	557	288
Prior	6,875	8,865
Revolving Loans	618	501
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	$ 10,549	$ 11,421

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