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Allowance for Credit Losses - Analysis of Past Due and Nonaccrual Loans (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Loans	$ 6,794,470	$ 6,450,447
Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	4,394,802	4,359,083
Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,313,268	1,240,743
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	586,455	569,921
Construction
Financing Receivable, Past Due [Line Items]
Loans	347,198	211,560
Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	144,497	61,414
Leases
Financing Receivable, Past Due [Line Items]
Loans	8,250	7,726
CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	2,217,806	2,149,725
CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	956,440	984,807
Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	949,502	944,537
Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	271,054	280,014
SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	883,438	790,349
SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	356,813	393,666
Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	73,017	56,728
Financial asset originated
Financing Receivable, Past Due [Line Items]
Loans	6,794,470	6,450,447
Financial asset originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	4,394,802	4,359,083
Financial asset originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,313,268	1,240,743
Financial asset originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	586,455	569,921
Financial asset originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	347,198	211,560
Financial asset originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	144,497	61,414
Financial asset originated | Leases
Financing Receivable, Past Due [Line Items]
Loans	8,250	7,726
Financial asset originated | CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	2,217,806	2,149,725
Financial asset originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	956,440	984,807
Financial asset originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	949,502	944,537
Financial asset originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	271,054	280,014
Financial asset originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	883,438	790,349
Financial asset originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	356,813	393,666
Financial asset originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	73,017	56,728
Total Past Due Loans | Financial asset originated
Financing Receivable, Past Due [Line Items]
Loans	19,415	4,947
Total Past Due Loans | Financial asset originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	12,024	332
Total Past Due Loans | Financial asset originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	2,937	1,463
Total Past Due Loans | Financial asset originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	2,503	2,773
Total Past Due Loans | Financial asset originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	0	379
Total Past Due Loans | Financial asset originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	1,504	0
Total Past Due Loans | Financial asset originated | Leases
Financing Receivable, Past Due [Line Items]
Loans	447	0
Total Past Due Loans | Financial asset originated | CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	5,258	0
Total Past Due Loans | Financial asset originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	281	173
Total Past Due Loans | Financial asset originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	159
Total Past Due Loans | Financial asset originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	6,485	0
Total Past Due Loans | Financial asset originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	2,080	303
Total Past Due Loans | Financial asset originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	639	1,045
Total Past Due Loans | Financial asset originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	218	115
30-59 days | Financial asset originated
Financing Receivable, Past Due [Line Items]
Loans	6,134	2,681
30-59 days | Financial asset originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	4,545	159
30-59 days | Financial asset originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	305	222
30-59 days | Financial asset originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	244	2,300
30-59 days | Financial asset originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	0	0
30-59 days | Financial asset originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	593	0
30-59 days | Financial asset originated | Leases
Financing Receivable, Past Due [Line Items]
Loans	447	0
30-59 days | Financial asset originated | CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	3,876	0
30-59 days | Financial asset originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	34	0
30-59 days | Financial asset originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	159
30-59 days | Financial asset originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	635	0
30-59 days | Financial asset originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	141	24
30-59 days | Financial asset originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	16	172
30-59 days | Financial asset originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	148	26
60-89 days | Financial asset originated
Financing Receivable, Past Due [Line Items]
Loans	6,770	488
60-89 days | Financial asset originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	3,798	98
60-89 days | Financial asset originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,489	200
60-89 days | Financial asset originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	605	190
60-89 days | Financial asset originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	0	0
60-89 days | Financial asset originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	878	0
60-89 days | Financial asset originated | Leases
Financing Receivable, Past Due [Line Items]
Loans	0	0
60-89 days | Financial asset originated | CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	0
60-89 days | Financial asset originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	98
60-89 days | Financial asset originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	0
60-89 days | Financial asset originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	3,798	0
60-89 days | Financial asset originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,449	0
60-89 days | Financial asset originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	0	166
60-89 days | Financial asset originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	40	34
> 90 days | Financial asset originated
Financing Receivable, Past Due [Line Items]
Loans	6,511	1,778
> 90 days | Financial asset originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	3,681	75
> 90 days | Financial asset originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,143	1,041
> 90 days | Financial asset originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	1,654	283
> 90 days | Financial asset originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	0	379
> 90 days | Financial asset originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	33	0
> 90 days | Financial asset originated | Leases
Financing Receivable, Past Due [Line Items]
Loans	0	0
> 90 days | Financial asset originated | CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	1,382	0
> 90 days | Financial asset originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	247	75
> 90 days | Financial asset originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	0
> 90 days | Financial asset originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	2,052	0
> 90 days | Financial asset originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	490	279
> 90 days | Financial asset originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	623	707
> 90 days | Financial asset originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	30	55
Current | Financial asset originated
Financing Receivable, Past Due [Line Items]
Loans	6,775,055	6,445,500
Current | Financial asset originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	4,382,778	4,358,751
Current | Financial asset originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,310,331	1,239,280
Current | Financial asset originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	583,952	567,148
Current | Financial asset originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	347,198	211,181
Current | Financial asset originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	142,993	61,414
Current | Financial asset originated | Leases
Financing Receivable, Past Due [Line Items]
Loans	7,803	7,726
Current | Financial asset originated | CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	2,212,548	2,149,725
Current | Financial asset originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	956,159	984,634
Current | Financial asset originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	949,502	944,378
Current | Financial asset originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	264,569	280,014
Current | Financial asset originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	881,358	790,046
Current | Financial asset originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	356,174	392,621
Current | Financial asset originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	$ 72,799	$ 56,613

X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479344/326-20-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Name Accounting Standards Codification
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-Paragraph 5
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-Publisher FASB
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- Definition

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-14

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
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-Name Accounting Standards Codification
-Section 55
-Paragraph 80
-Publisher FASB
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