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Loans - Aging in past due loans and nonaccrual status, with and without an ACL, by loan segment (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Aging of the recorded investment in past due loans by loan segment
Nonaccrual without ACL	$ 919	$ 639
Totals	3,724,282	3,569,446
Current
Aging of the recorded investment in past due loans by loan segment
Totals	3,708,253	3,568,621
30-89 Days Past Due
Aging of the recorded investment in past due loans by loan segment
Totals	15,110	186
Commercial
Aging of the recorded investment in past due loans by loan segment
Nonaccrual without ACL	95
Totals	464,061	436,393
Commercial | Current
Aging of the recorded investment in past due loans by loan segment
Totals	463,966	436,323
Commercial | 30-89 Days Past Due
Aging of the recorded investment in past due loans by loan segment
Totals		70
Construction and Land Development
Aging of the recorded investment in past due loans by loan segment
Nonaccrual without ACL	80	106
Totals	232,804	295,554
Construction and Land Development | Current
Aging of the recorded investment in past due loans by loan segment
Totals	232,724	295,448
1-4 Family Construction
Aging of the recorded investment in past due loans by loan segment
Nonaccrual without ACL	249
Totals	65,087	70,242
1-4 Family Construction | Current
Aging of the recorded investment in past due loans by loan segment
Totals	64,838	70,242
HELOC and 1-4 Family Junior Mortgage
Aging of the recorded investment in past due loans by loan segment
Totals		36,875
HELOC and 1-4 Family Junior Mortgage | Current
Aging of the recorded investment in past due loans by loan segment
Totals		36,875
1st REM - 1-4 Family
Aging of the recorded investment in past due loans by loan segment
Totals		50,945
1st REM - 1-4 Family | Current
Aging of the recorded investment in past due loans by loan segment
Totals		50,945
LOCs and 2nd REM - Rentals
Aging of the recorded investment in past due loans by loan segment
Totals		27,985
LOCs and 2nd REM - Rentals | Current
Aging of the recorded investment in past due loans by loan segment
Totals		27,985
1st REM - Rentals
Aging of the recorded investment in past due loans by loan segment
Totals		239,669
1st REM - Rentals | Current
Aging of the recorded investment in past due loans by loan segment
Totals		239,553
1st REM - Rentals | 30-89 Days Past Due
Aging of the recorded investment in past due loans by loan segment
Totals		116
1-4 Family Mortgage
Aging of the recorded investment in past due loans by loan segment
Totals	402,396	355,474
1-4 Family Mortgage | Current
Aging of the recorded investment in past due loans by loan segment
Totals	402,396
Multifamily
Aging of the recorded investment in past due loans by loan segment
Totals	1,388,541	1,306,738
Multifamily | Current
Aging of the recorded investment in past due loans by loan segment
Totals	1,373,431	1,306,738
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	533
Totals	175,783	149,905
CRE Owner Occupied | Current
Aging of the recorded investment in past due loans by loan segment
Totals	175,289	149,372
CRE Non-owner Occupied
Aging of the recorded investment in past due loans by loan segment
Totals	987,306	947,008
CRE Non-owner Occupied | Current
Aging of the recorded investment in past due loans by loan segment
Totals	987,306	947,008
Consumer and other
Aging of the recorded investment in past due loans by loan segment
Nonaccrual without ACL	1
Totals	8,304	8,132
Consumer and other | Current
Aging of the recorded investment in past due loans by loan segment
Totals	$ 8,303	$ 8,132

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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-Publisher FASB
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Paragraph 5
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-Publisher FASB
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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
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+ References

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

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

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