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Loans and Allowance for Credit Losses - Aging in past due loans and nonaccrual status, with and without an ACL, by loan segment (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Aging of the recorded investment in past due loans by loan segment
Nonaccrual with ACL	$ 80
Nonaccrual without ACL	598	$ 919
Totals	3,800,385	3,724,282
Current
Aging of the recorded investment in past due loans by loan segment
Totals	3,799,205	3,708,253
30-89 Days Past Due
Aging of the recorded investment in past due loans by loan segment
Totals	502	15,110
Commercial
Aging of the recorded investment in past due loans by loan segment
Nonaccrual with ACL	80
Nonaccrual without ACL	95	95
Totals	518,762	464,061
Commercial | Current
Aging of the recorded investment in past due loans by loan segment
Totals	518,085	463,966
Commercial | 30-89 Days Past Due
Aging of the recorded investment in past due loans by loan segment
Totals	502
Construction and Land Development
Aging of the recorded investment in past due loans by loan segment
Nonaccrual without ACL	68	80
Totals	134,096	232,804
Construction and Land Development | Current
Aging of the recorded investment in past due loans by loan segment
Totals	134,028	232,724
1-4 Family Construction
Aging of the recorded investment in past due loans by loan segment
Nonaccrual without ACL		249
Totals	60,551	65,087
1-4 Family Construction | Current
Aging of the recorded investment in past due loans by loan segment
Totals	60,551	64,838
1-4 Family Mortgage
Aging of the recorded investment in past due loans by loan segment
Totals	416,944	402,396
1-4 Family Mortgage | Current
Aging of the recorded investment in past due loans by loan segment
Totals	416,944	402,396
Multifamily
Aging of the recorded investment in past due loans by loan segment
Totals	1,404,835	1,388,541
Multifamily | Current
Aging of the recorded investment in past due loans by loan segment
Totals	1,404,835	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	185,988	175,783
CRE Owner Occupied | Current
Aging of the recorded investment in past due loans by loan segment
Totals	185,988	175,289
CRE Non-owner Occupied
Aging of the recorded investment in past due loans by loan segment
Nonaccrual without ACL	435
Totals	1,070,050	987,306
CRE Non-owner Occupied | Current
Aging of the recorded investment in past due loans by loan segment
Totals	1,069,615	987,306
Consumer and other
Aging of the recorded investment in past due loans by loan segment
Nonaccrual without ACL		1
Totals	9,159	8,304
Consumer and other | Current
Aging of the recorded investment in past due loans by loan segment
Totals	$ 9,159	$ 8,303

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

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