Loans - Aging in past due loans and nonaccrual status, with and without an ACL, by loan segment (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Aging of the recorded investment in past due loans by loan segment
Nonaccrual with ACL	$ 223
Nonaccrual without ACL	78	$ 919
Totals	3,868,514	3,724,282
Current
Aging of the recorded investment in past due loans by loan segment
Totals	3,866,922	3,708,253
30-89 Days Past Due
Aging of the recorded investment in past due loans by loan segment
Totals	1,291	15,110
Commercial
Aging of the recorded investment in past due loans by loan segment
Nonaccrual with ACL	171
Nonaccrual without ACL		95
Totals	497,662	464,061
Commercial \| Current
Aging of the recorded investment in past due loans by loan segment
Totals	497,432	463,966
Commercial \| 30-89 Days Past Due
Aging of the recorded investment in past due loans by loan segment
Totals	59
Leases
Aging of the recorded investment in past due loans by loan segment
Nonaccrual with ACL	34
Totals	44,291
Leases \| Current
Aging of the recorded investment in past due loans by loan segment
Totals	44,257
Construction and Land Development
Aging of the recorded investment in past due loans by loan segment
Nonaccrual without ACL	58	80
Totals	97,255	232,804
Construction and Land Development \| Current
Aging of the recorded investment in past due loans by loan segment
Totals	97,197	232,724
1-4 Family Construction
Aging of the recorded investment in past due loans by loan segment
Nonaccrual without ACL		249
Totals	41,961	65,087
1-4 Family Construction \| Current
Aging of the recorded investment in past due loans by loan segment
Totals	41,961	64,838
1-4 Family Mortgage
Aging of the recorded investment in past due loans by loan segment
Nonaccrual without ACL	20
Totals	474,383	402,396
1-4 Family Mortgage \| Current
Aging of the recorded investment in past due loans by loan segment
Totals	474,185	402,396
1-4 Family Mortgage \| 30-89 Days Past Due
Aging of the recorded investment in past due loans by loan segment
Totals	178
Multifamily
Aging of the recorded investment in past due loans by loan segment
Totals	1,425,610	1,388,541
Multifamily \| Current
Aging of the recorded investment in past due loans by loan segment
Totals	1,425,610	1,373,431
Multifamily \| 30-89 Days Past Due
Aging of the recorded investment in past due loans by loan segment
Totals		15,110
CRE Owner Occupied
Aging of the recorded investment in past due loans by loan segment
Nonaccrual without ACL		494
Totals	191,248	175,783
CRE Owner Occupied \| Current
Aging of the recorded investment in past due loans by loan segment
Totals	190,197	175,289
CRE Owner Occupied \| 30-89 Days Past Due
Aging of the recorded investment in past due loans by loan segment
Totals	1,051
CRE Nonowner Occupied
Aging of the recorded investment in past due loans by loan segment
Totals	1,083,108	987,306
CRE Nonowner Occupied \| Current
Aging of the recorded investment in past due loans by loan segment
Totals	1,083,108	987,306
Consumer and Other
Aging of the recorded investment in past due loans by loan segment
Nonaccrual with ACL	18
Nonaccrual without ACL		1
Totals	12,996	8,304
Consumer and Other \| Current
Aging of the recorded investment in past due loans by loan segment
Totals	12,975	$ 8,303
Consumer and Other \| 30-89 Days Past Due
Aging of the recorded investment in past due loans by loan segment
Totals	$ 3

Amount of financing receivable on nonaccrual status with allowance for credit loss.

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- 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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-Section 50
-Paragraph 5
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-5

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- Definition

Amortized cost of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ 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
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 80
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479294/326-20-55-80

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