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, 2022	Dec. 31, 2021
Credit Quality Information [Abstract]
Current fiscal year	$ 1,535,342	$ 1,200,288
Fiscal year before current fiscal year	973,016	818,943
Two years before current fiscal year	669,475	547,593
Three years before current fiscal year	387,967	374,575
Four years before current fiscal year	354,435	247,554
Prior	862,255	763,077
Revolving Loans	43,722	43,493
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	4,826,212	3,995,523
Pass
Credit Quality Information [Abstract]
Current fiscal year	1,524,905	1,177,678
Fiscal year before current fiscal year	969,145	815,269
Two years before current fiscal year	656,609	527,037
Three years before current fiscal year	382,543	367,606
Four years before current fiscal year	335,886	225,557
Prior	832,814	726,479
Revolving Loans	43,722	42,800
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	4,745,624	3,882,426
Special Mention
Credit Quality Information [Abstract]
Current fiscal year	5,126	18,807
Fiscal year before current fiscal year	2,163	2,354
Two years before current fiscal year	11,356	11,947
Three years before current fiscal year	4,118	2,519
Four years before current fiscal year	8,814	13,769
Prior	12,891	16,798
Revolving Loans	0	41
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	44,468	66,235
Substandard
Credit Quality Information [Abstract]
Current fiscal year	5,311	3,803
Fiscal year before current fiscal year	1,708	1,320
Two years before current fiscal year	1,510	8,609
Three years before current fiscal year	1,306	4,450
Four years before current fiscal year	9,735	8,228
Prior	16,550	19,800
Revolving Loans	0	652
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	36,120	46,862
Agricultural Loans
Credit Quality Information [Abstract]
Current fiscal year	138,558	119,453
Fiscal year before current fiscal year	18,783	18,357
Two years before current fiscal year	3,433	8,260
Three years before current fiscal year	4,720	2,972
Four years before current fiscal year	981	937
Prior	363	1,505
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	166,838	151,484
Agricultural Loans | Pass
Credit Quality Information [Abstract]
Current fiscal year	137,327	105,378
Fiscal year before current fiscal year	18,783	17,903
Two years before current fiscal year	3,433	5,612
Three years before current fiscal year	3,918	2,822
Four years before current fiscal year	915	924
Prior	254	1,316
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	164,630	133,955
Agricultural Loans | Special Mention
Credit Quality Information [Abstract]
Current fiscal year	1,178	13,725
Fiscal year before current fiscal year	0	436
Two years before current fiscal year	0	2,648
Three years before current fiscal year	756	150
Four years before current fiscal year	66	13
Prior	109	64
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	2,109	17,036
Agricultural Loans | Substandard
Credit Quality Information [Abstract]
Current fiscal year	53	350
Fiscal year before current fiscal year	0	18
Two years before current fiscal year	0	0
Three years before current fiscal year	46	0
Four years before current fiscal year	0	0
Prior	0	125
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	99	493
Commercial Industrial And Other Portfolio Segment
Credit Quality Information [Abstract]
Current fiscal year	450,816	280,933
Fiscal year before current fiscal year	227,096	168,095
Two years before current fiscal year	182,487	121,298
Three years before current fiscal year	64,511	76,825
Four years before current fiscal year	69,366	23,389
Prior	248,195	305,214
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	1,242,471	975,754
Commercial Industrial And Other Portfolio Segment | Pass
Credit Quality Information [Abstract]
Current fiscal year	450,001	279,814
Fiscal year before current fiscal year	226,038	167,662
Two years before current fiscal year	172,208	119,702
Three years before current fiscal year	63,906	76,022
Four years before current fiscal year	61,929	22,888
Prior	247,404	302,962
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	1,221,486	969,050
Commercial Industrial And Other Portfolio Segment | Special Mention
Credit Quality Information [Abstract]
Current fiscal year	469	613
Fiscal year before current fiscal year	640	399
Two years before current fiscal year	10,095	1,463
Three years before current fiscal year	570	182
Four years before current fiscal year	7,280	477
Prior	158	819
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	19,212	3,953
Commercial Industrial And Other Portfolio Segment | Substandard
Credit Quality Information [Abstract]
Current fiscal year	346	506
Fiscal year before current fiscal year	418	34
Two years before current fiscal year	184	133
Three years before current fiscal year	35	621
Four years before current fiscal year	157	24
Prior	633	1,433
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	1,773	2,751
Consumer Loans
Credit Quality Information [Abstract]
Current fiscal year	48,669	28,601
Fiscal year before current fiscal year	21,352	19,145
Two years before current fiscal year	12,105	17,324
Three years before current fiscal year	8,011	6,192
Four years before current fiscal year	2,002	4,340
Prior	5,636	2,840
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	97,775	78,442
Consumer Loans | Pass
Credit Quality Information [Abstract]
Current fiscal year	48,600	27,948
Fiscal year before current fiscal year	21,088	19,033
Two years before current fiscal year	12,101	16,978
Three years before current fiscal year	7,968	5,505
Four years before current fiscal year	1,945	4,297
Prior	5,630	1,244
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	97,332	75,005
Consumer Loans | Special Mention
Credit Quality Information [Abstract]
Current fiscal year	0	68
Fiscal year before current fiscal year	18	54
Two years before current fiscal year	1	38
Three years before current fiscal year	0	9
Four years before current fiscal year	5	0
Prior	0	0
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	24	169
Consumer Loans | Substandard
Credit Quality Information [Abstract]
Current fiscal year	69	585
Fiscal year before current fiscal year	246	58
Two years before current fiscal year	3	308
Three years before current fiscal year	43	678
Four years before current fiscal year	52	43
Prior	6	1,596
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	419	3,268
Real Estate Loan
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	3,319,128	2,789,843
Real Estate Loan | Construction and Land Development
Credit Quality Information [Abstract]
Current fiscal year	63,846	38,766
Fiscal year before current fiscal year	39,790	34,774
Two years before current fiscal year	12,558	23,505
Three years before current fiscal year	15,801	34,841
Four years before current fiscal year	1,210	3,760
Prior	11,059	9,472
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	144,264	145,118
Real Estate Loan | Construction and Land Development | Pass
Credit Quality Information [Abstract]
Current fiscal year	63,846	38,656
Fiscal year before current fiscal year	39,790	34,774
Two years before current fiscal year	12,558	23,505
Three years before current fiscal year	15,787	34,358
Four years before current fiscal year	1,210	3,760
Prior	10,601	9,433
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	143,792	144,486
Real Estate Loan | Construction and Land Development | Special Mention
Credit Quality Information [Abstract]
Current fiscal year	0	110
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	110
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	14	483
Four years before current fiscal year	0	0
Prior	458	39
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	472	522
Real Estate Loan | Agricultural
Credit Quality Information [Abstract]
Current fiscal year	172,956	79,665
Fiscal year before current fiscal year	67,115	64,418
Two years before current fiscal year	58,773	30,133
Three years before current fiscal year	25,060	30,774
Four years before current fiscal year	29,229	12,268
Prior	57,194	62,014
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	410,327	279,272
Real Estate Loan | Agricultural | Pass
Credit Quality Information [Abstract]
Current fiscal year	171,833	78,793
Fiscal year before current fiscal year	67,115	64,159
Two years before current fiscal year	58,283	25,713
Three years before current fiscal year	23,820	30,203
Four years before current fiscal year	27,573	12,142
Prior	52,799	54,808
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	401,423	265,818
Real Estate Loan | Agricultural | Special Mention
Credit Quality Information [Abstract]
Current fiscal year	1,123	872
Fiscal year before current fiscal year	0	259
Two years before current fiscal year	490	4,028
Three years before current fiscal year	1,240	384
Four years before current fiscal year	273	69
Prior	3,121	6,087
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	6,247	11,699
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	0	392
Three years before current fiscal year	0	187
Four years before current fiscal year	1,383	57
Prior	1,274	1,119
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	2,657	1,755
Real Estate Loan | Commercial And Multifamily Portfolio Segment
Credit Quality Information [Abstract]
Current fiscal year	564,891	573,392
Fiscal year before current fiscal year	511,379	419,254
Two years before current fiscal year	320,612	308,051
Three years before current fiscal year	241,945	176,922
Four years before current fiscal year	217,851	166,066
Prior	467,679	321,455
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	2,324,357	1,965,140
Real Estate Loan | Commercial And Multifamily Portfolio Segment | Pass
Credit Quality Information [Abstract]
Current fiscal year	558,921	568,200
Fiscal year before current fiscal year	509,614	417,334
Two years before current fiscal year	319,049	299,973
Three years before current fiscal year	239,564	174,448
Four years before current fiscal year	211,505	150,811
Prior	453,076	304,585
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	2,291,729	1,915,351
Real Estate Loan | Commercial And Multifamily Portfolio Segment | Special Mention
Credit Quality Information [Abstract]
Current fiscal year	2,187	3,185
Fiscal year before current fiscal year	1,287	1,206
Two years before current fiscal year	769	1,836
Three years before current fiscal year	1,508	1,295
Four years before current fiscal year	952	10,609
Prior	8,503	8,632
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	15,206	26,763
Real Estate Loan | Commercial And Multifamily Portfolio Segment | Substandard
Credit Quality Information [Abstract]
Current fiscal year	3,783	2,007
Fiscal year before current fiscal year	478	714
Two years before current fiscal year	794	6,242
Three years before current fiscal year	873	1,179
Four years before current fiscal year	5,394	4,646
Prior	6,100	8,238
Revolving Loans	0	0
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	17,422	23,026
1-4 Family | Real Estate Loan
Credit Quality Information [Abstract]
Current fiscal year	95,606	79,478
Fiscal year before current fiscal year	87,501	94,900
Two years before current fiscal year	79,507	39,022
Three years before current fiscal year	27,919	46,049
Four years before current fiscal year	33,796	36,794
Prior	72,129	60,577
Revolving Loans	43,722	43,493
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	440,180	400,313
1-4 Family | Real Estate Loan | Pass
Credit Quality Information [Abstract]
Current fiscal year	94,377	78,889
Fiscal year before current fiscal year	86,717	94,404
Two years before current fiscal year	78,977	35,554
Three years before current fiscal year	27,580	44,248
Four years before current fiscal year	30,809	30,735
Prior	63,050	52,131
Revolving Loans	43,722	42,800
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	425,232	378,761
1-4 Family | Real Estate Loan | Special Mention
Credit Quality Information [Abstract]
Current fiscal year	169	234
Fiscal year before current fiscal year	218	0
Two years before current fiscal year	1	1,934
Three years before current fiscal year	44	499
Four years before current fiscal year	238	2,601
Prior	1,000	1,196
Revolving Loans	0	41
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	1,670	6,505
1-4 Family | Real Estate Loan | Substandard
Credit Quality Information [Abstract]
Current fiscal year	1,060	355
Fiscal year before current fiscal year	566	496
Two years before current fiscal year	529	1,534
Three years before current fiscal year	295	1,302
Four years before current fiscal year	2,749	3,458
Prior	8,079	7,250
Revolving Loans	0	652
Loans Receivable Aging Analysis [Abstract]
Total Loans Receivable	$ 13,278	$ 15,047