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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 | Mar. 31, 2024 | Dec. 31, 2023
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Aging of the recorded investment in past due loans by loan segment |  |
Nonaccrual without ACL | $ 249 | $ 919
Totals | 3,784,205 | 3,724,282
Current |  |
Aging of the recorded investment in past due loans by loan segment |  |
Totals | 3,783,956 | 3,708,253
30-89 Days Past Due |  |
Aging of the recorded investment in past due loans by loan segment |  |
Totals |  | 15,110
Commercial |  |
Aging of the recorded investment in past due loans by loan segment |  |
Nonaccrual without ACL | 175 | 95
Totals | 483,069 | 464,061
Commercial | Current |  |
Aging of the recorded investment in past due loans by loan segment |  |
Totals | 482,894 | 463,966
Construction and Land Development |  |
Aging of the recorded investment in past due loans by loan segment |  |
Nonaccrual without ACL | 74 | 80
Totals | 200,970 | 232,804
Construction and Land Development | Current |  |
Aging of the recorded investment in past due loans by loan segment |  |
Totals | 200,896 | 232,724
1-4 Family Construction |  |
Aging of the recorded investment in past due loans by loan segment |  |
Nonaccrual without ACL |  | 249
Totals | 65,606 | 65,087
1-4 Family Construction | Current |  |
Aging of the recorded investment in past due loans by loan segment |  |
Totals | 65,606 | 64,838
1-4 Family Mortgage |  |
Aging of the recorded investment in past due loans by loan segment |  |
Totals | 417,773 | 402,396
1-4 Family Mortgage | Current |  |
Aging of the recorded investment in past due loans by loan segment |  |
Totals | 417,773 | 402,396
Multifamily |  |
Aging of the recorded investment in past due loans by loan segment |  |
Totals | 1,389,345 | 1,388,541
Multifamily | Current |  |
Aging of the recorded investment in past due loans by loan segment |  |
Totals | 1,389,345 | 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 | 182,589 | 175,783
CRE Owner Occupied | Current |  |
Aging of the recorded investment in past due loans by loan segment |  |
Totals | 182,589 | 175,289
CRE Non-owner Occupied |  |
Aging of the recorded investment in past due loans by loan segment |  |
Totals | 1,035,702 | 987,306
CRE Non-owner Occupied | Current |  |
Aging of the recorded investment in past due loans by loan segment |  |
Totals | 1,035,702 | 987,306
Consumer and other |  |
Aging of the recorded investment in past due loans by loan segment |  |
Nonaccrual without ACL |  | 1
Totals | 9,151 | 8,304
Consumer and other | Current |  |
Aging of the recorded investment in past due loans by loan segment |  |
Totals | $ 9,151 | $ 8,303

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