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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, 2023	Dec. 31, 2022
Credit Quality Information [Abstract]
Current fiscal year	$ 792,071	$ 1,535,342
Fiscal year before current fiscal year	1,402,051	973,016
Two years before current fiscal year	994,108	669,475
Three years before current fiscal year	619,354	387,967
Four years before current fiscal year	381,174	354,435
Prior	1,315,596	862,255
Revolving Loans	76,211	43,722
Current period gross writeoffs, current fiscal year	10
Current period gross writeoffs, fiscal year before current fiscal year	761
Current period gross writeoffs, two year before current fiscal year	208
Current period gross writeoffs, three year before current fiscal year	51
Current period gross writeoffs, four year before current fiscal year	93
Current period gross writeoffs, prior	1,508
Current period gross writeoffs, revolving loans	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	5,580,565	4,826,212
Current period gross writeoffs, total loans receivables	2,631
Pass
Credit Quality Information [Abstract]
Current fiscal year	786,908	1,524,905
Fiscal year before current fiscal year	1,390,885	969,145
Two years before current fiscal year	976,531	656,609
Three years before current fiscal year	616,020	382,543
Four years before current fiscal year	376,655	335,886
Prior	1,254,871	832,814
Revolving Loans	75,700	43,722
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	5,477,570	4,745,624
Special Mention
Credit Quality Information [Abstract]
Current fiscal year	4,925	5,126
Fiscal year before current fiscal year	5,566	2,163
Two years before current fiscal year	15,110	11,356
Three years before current fiscal year	2,721	4,118
Four years before current fiscal year	3,368	8,814
Prior	42,350	12,891
Revolving Loans	10	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	74,050	44,468
Substandard
Credit Quality Information [Abstract]
Current fiscal year	238	5,311
Fiscal year before current fiscal year	5,600	1,708
Two years before current fiscal year	2,467	1,510
Three years before current fiscal year	613	1,306
Four years before current fiscal year	1,151	9,735
Prior	18,375	16,550
Revolving Loans	501	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	28,945	36,120
Doubtful
Credit Quality Information [Abstract]
Current fiscal year	0
Fiscal year before current fiscal year	0
Two years before current fiscal year	0
Three years before current fiscal year	0
Four years before current fiscal year	0
Prior	0
Revolving Loans	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	0
Agricultural Loans
Credit Quality Information [Abstract]
Current fiscal year	147,999	138,558
Fiscal year before current fiscal year	27,905	18,783
Two years before current fiscal year	10,044	3,433
Three years before current fiscal year	2,549	4,720
Four years before current fiscal year	1,921	981
Prior	5,854	363
Revolving Loans	0	0
Current period gross writeoffs, current fiscal year	0
Current period gross writeoffs, fiscal year before current fiscal year	276
Current period gross writeoffs, two year before current fiscal year	0
Current period gross writeoffs, three year before current fiscal year	0
Current period gross writeoffs, four year before current fiscal year	0
Current period gross writeoffs, prior	132
Current period gross writeoffs, revolving loans	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	196,272	166,838
Current period gross writeoffs, total loans receivables	408
Agricultural Loans | Pass
Credit Quality Information [Abstract]
Current fiscal year	147,993	137,327
Fiscal year before current fiscal year	27,895	18,783
Two years before current fiscal year	10,044	3,433
Three years before current fiscal year	2,549	3,918
Four years before current fiscal year	1,883	915
Prior	5,854	254
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	196,218	164,630
Agricultural Loans | Special Mention
Credit Quality Information [Abstract]
Current fiscal year	6	1,178
Fiscal year before current fiscal year	10	0
Two years before current fiscal year	0	0
Three years before current fiscal year	0	756
Four years before current fiscal year	38	66
Prior	0	109
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	54	2,109
Agricultural Loans | Substandard
Credit Quality Information [Abstract]
Current fiscal year	0	53
Fiscal year before current fiscal year	0	0
Two years before current fiscal year	0	0
Three years before current fiscal year	0	46
Four years before current fiscal year	0	0
Prior	0	0
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	0	99
Commercial Industrial And Other Portfolio Segment
Credit Quality Information [Abstract]
Current fiscal year	291,351	450,816
Fiscal year before current fiscal year	309,188	227,096
Two years before current fiscal year	242,971	182,487
Three years before current fiscal year	155,119	64,511
Four years before current fiscal year	74,532	69,366
Prior	377,607	248,195
Revolving Loans	0	0
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]
Total Loans Receivable	1,450,768	1,242,471
Current period gross writeoffs, total loans receivables	529
Commercial Industrial And Other Portfolio Segment | Pass
Credit Quality Information [Abstract]
Current fiscal year	290,304	450,001
Fiscal year before current fiscal year	306,794	226,038
Two years before current fiscal year	232,198	172,208
Three years before current fiscal year	154,499	63,906
Four years before current fiscal year	73,906	61,929
Prior	347,957	247,404
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	1,405,658	1,221,486
Commercial Industrial And Other Portfolio Segment | Special Mention
Credit Quality Information [Abstract]
Current fiscal year	1,047	469
Fiscal year before current fiscal year	1,857	640
Two years before current fiscal year	9,982	10,095
Three years before current fiscal year	562	570
Four years before current fiscal year	597	7,280
Prior	28,900	158
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	42,945	19,212
Commercial Industrial And Other Portfolio Segment | Substandard
Credit Quality Information [Abstract]
Current fiscal year	0	346
Fiscal year before current fiscal year	537	418
Two years before current fiscal year	791	184
Three years before current fiscal year	58	35
Four years before current fiscal year	29	157
Prior	750	633
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	2,165	1,773
Commercial Industrial And Other Portfolio Segment | Doubtful
Credit Quality Information [Abstract]
Current fiscal year	0
Fiscal year before current fiscal year	0
Two years before current fiscal year	0
Three years before current fiscal year	0
Four years before current fiscal year	0
Prior	0
Revolving Loans	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	0
Consumer Loans
Credit Quality Information [Abstract]
Current fiscal year	9,633	48,669
Fiscal year before current fiscal year	40,656	21,352
Two years before current fiscal year	21,589	12,105
Three years before current fiscal year	10,526	8,011
Four years before current fiscal year	4,534	2,002
Prior	4,076	5,636
Revolving Loans	0	0
Current period gross writeoffs, current fiscal year	0
Current period gross writeoffs, fiscal year before current fiscal year	132
Current period gross writeoffs, two year before current fiscal year	208
Current period gross writeoffs, three year before current fiscal year	2
Current period gross writeoffs, four year before current fiscal year	20
Current period gross writeoffs, prior	1,206
Current period gross writeoffs, revolving loans	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	91,014	97,775
Current period gross writeoffs, total loans receivables	1,568
Consumer Loans | Pass
Credit Quality Information [Abstract]
Current fiscal year	9,547	48,600
Fiscal year before current fiscal year	40,225	21,088
Two years before current fiscal year	21,264	12,101
Three years before current fiscal year	10,387	7,968
Four years before current fiscal year	4,475	1,945
Prior	4,035	5,630
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	89,933	97,332
Consumer Loans | Special Mention
Credit Quality Information [Abstract]
Current fiscal year	0	0
Fiscal year before current fiscal year	26	18
Two years before current fiscal year	0	1
Three years before current fiscal year	0	0
Four years before current fiscal year	0	5
Prior	0	0
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	26	24
Consumer Loans | Substandard
Credit Quality Information [Abstract]
Current fiscal year	86	69
Fiscal year before current fiscal year	405	246
Two years before current fiscal year	325	3
Three years before current fiscal year	139	43
Four years before current fiscal year	59	52
Prior	41	6
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	1,055	419
Real Estate Loan
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	3,842,511	3,319,128
Real Estate Loan | Construction and Land Development
Credit Quality Information [Abstract]
Current fiscal year	68,086	63,846
Fiscal year before current fiscal year	74,065	39,790
Two years before current fiscal year	27,392	12,558
Three years before current fiscal year	5,188	15,801
Four years before current fiscal year	10,795	1,210
Prior	19,551	11,059
Revolving Loans	0	0
Current period gross writeoffs, current fiscal year	0
Current period gross writeoffs, fiscal year before current fiscal year	0
Current period gross writeoffs, two year before current fiscal year	0
Current period gross writeoffs, three year before current fiscal year	0
Current period gross writeoffs, four year before current fiscal year	14
Current period gross writeoffs, prior	0
Current period gross writeoffs, revolving loans	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	205,077	144,264
Current period gross writeoffs, total loans receivables	14
Real Estate Loan | Construction and Land Development | Pass
Credit Quality Information [Abstract]
Current fiscal year	68,086	63,846
Fiscal year before current fiscal year	74,065	39,790
Two years before current fiscal year	27,392	12,558
Three years before current fiscal year	5,188	15,787
Four years before current fiscal year	10,795	1,210
Prior	19,115	10,601
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	204,641	143,792
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	0	0
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	0	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	0	0
Three years before current fiscal year	0	14
Four years before current fiscal year	0	0
Prior	436	458
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	436	472
Real Estate Loan | Agricultural
Credit Quality Information [Abstract]
Current fiscal year	19,437	172,956
Fiscal year before current fiscal year	164,812	67,115
Two years before current fiscal year	58,813	58,773
Three years before current fiscal year	53,249	25,060
Four years before current fiscal year	20,589	29,229
Prior	74,232	57,194
Revolving Loans	0	0
Current period gross writeoffs, current fiscal year	0
Current period gross writeoffs, fiscal year before current fiscal year	0
Current period gross writeoffs, two year before current fiscal year	0
Current period gross writeoffs, three year before current fiscal year	0
Current period gross writeoffs, four year before current fiscal year	0
Current period gross writeoffs, prior	0
Current period gross writeoffs, revolving loans	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	391,132	410,327
Current period gross writeoffs, total loans receivables	0
Real Estate Loan | Agricultural | Pass
Credit Quality Information [Abstract]
Current fiscal year	19,231	171,833
Fiscal year before current fiscal year	164,812	67,115
Two years before current fiscal year	57,815	58,283
Three years before current fiscal year	53,249	23,820
Four years before current fiscal year	19,419	27,573
Prior	71,189	52,799
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	385,715	401,423
Real Estate Loan | Agricultural | Special Mention
Credit Quality Information [Abstract]
Current fiscal year	206	1,123
Fiscal year before current fiscal year	0	0
Two years before current fiscal year	627	490
Three years before current fiscal year	0	1,240
Four years before current fiscal year	1,170	273
Prior	1,868	3,121
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	3,871	6,247
Real Estate Loan | Agricultural | Substandard
Credit Quality Information [Abstract]
Current fiscal year	0	0
Fiscal year before current fiscal year	0	0
Two years before current fiscal year	371	0
Three years before current fiscal year	0	0
Four years before current fiscal year	0	1,383
Prior	1,175	1,274
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	1,546	2,657
Real Estate Loan | Commercial And Multifamily Portfolio Segment
Credit Quality Information [Abstract]
Current fiscal year	189,294	564,891
Fiscal year before current fiscal year	686,704	511,379
Two years before current fiscal year	550,570	320,612
Three years before current fiscal year	319,254	241,945
Four years before current fiscal year	241,661	217,851
Prior	716,350	467,679
Revolving Loans	0	0
Current period gross writeoffs, current fiscal year	0
Current period gross writeoffs, fiscal year before current fiscal year	0
Current period gross writeoffs, two year before current fiscal year	0
Current period gross writeoffs, three year before current fiscal year	0
Current period gross writeoffs, four year before current fiscal year	25
Current period gross writeoffs, prior	0
Current period gross writeoffs, revolving loans	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	2,703,833	2,324,357
Current period gross writeoffs, total loans receivables	25
Real Estate Loan | Commercial And Multifamily Portfolio Segment | Pass
Credit Quality Information [Abstract]
Current fiscal year	185,628	558,921
Fiscal year before current fiscal year	680,099	509,614
Two years before current fiscal year	548,733	319,049
Three years before current fiscal year	317,075	239,564
Four years before current fiscal year	239,323	211,505
Prior	701,464	453,076
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	2,672,322	2,291,729
Real Estate Loan | Commercial And Multifamily Portfolio Segment | Special Mention
Credit Quality Information [Abstract]
Current fiscal year	3,666	2,187
Fiscal year before current fiscal year	2,706	1,287
Two years before current fiscal year	1,317	769
Three years before current fiscal year	2,159	1,508
Four years before current fiscal year	1,563	952
Prior	7,778	8,503
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	19,189	15,206
Real Estate Loan | Commercial And Multifamily Portfolio Segment | Substandard
Credit Quality Information [Abstract]
Current fiscal year	0	3,783
Fiscal year before current fiscal year	3,899	478
Two years before current fiscal year	520	794
Three years before current fiscal year	20	873
Four years before current fiscal year	775	5,394
Prior	7,108	6,100
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	12,322	17,422
1-4 Family | Real Estate Loan
Credit Quality Information [Abstract]
Current fiscal year	66,271	95,606
Fiscal year before current fiscal year	98,721	87,501
Two years before current fiscal year	82,729	79,507
Three years before current fiscal year	73,469	27,919
Four years before current fiscal year	27,142	33,796
Prior	117,926	72,129
Revolving Loans	76,211	43,722
Current period gross writeoffs, current fiscal year	10
Current period gross writeoffs, fiscal year before current fiscal year	0
Current period gross writeoffs, two year before current fiscal year	0
Current period gross writeoffs, three year before current fiscal year	0
Current period gross writeoffs, four year before current fiscal year	14
Current period gross writeoffs, prior	63
Current period gross writeoffs, revolving loans	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	542,469	440,180
Current period gross writeoffs, total loans receivables	87
1-4 Family | Real Estate Loan | Pass
Credit Quality Information [Abstract]
Current fiscal year	66,119	94,377
Fiscal year before current fiscal year	96,995	86,717
Two years before current fiscal year	79,085	78,977
Three years before current fiscal year	73,073	27,580
Four years before current fiscal year	26,854	30,809
Prior	105,257	63,050
Revolving Loans	75,700	43,722
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	523,083	425,232
1-4 Family | Real Estate Loan | Special Mention
Credit Quality Information [Abstract]
Current fiscal year	0	169
Fiscal year before current fiscal year	967	218
Two years before current fiscal year	3,184	1
Three years before current fiscal year	0	44
Four years before current fiscal year	0	238
Prior	3,804	1,000
Revolving Loans	10	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	7,965	1,670
1-4 Family | Real Estate Loan | Substandard
Credit Quality Information [Abstract]
Current fiscal year	152	1,060
Fiscal year before current fiscal year	759	566
Two years before current fiscal year	460	529
Three years before current fiscal year	396	295
Four years before current fiscal year	288	2,749
Prior	8,865	8,079
Revolving Loans	501	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	$ 11,421	$ 13,278

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