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Loans and Allowance for Credit Losses on Loans - Collateral dependent loans (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | --- | --- | --- | --- | ---
Loans |  |  |  |  |  |
Total loans, including deferred loan loan costs and PCI | $ 3,946,656 |  | $ 3,998,689 |  |  |
ACL Allocation | 44,422 | $ 42,269 | 44,264 | $ 51,729 | $ 55,314 | $ 49,480
Non-accruing loans | 500,000 |  |  |  |  |
Asset Pledged as Collateral without Right |  |  |  |  |  |
Loans |  |  |  |  |  |
Total loans, including deferred loan loan costs and PCI | 50,166 |  | 63,115 |  |  |
Real Estate | Asset Pledged as Collateral without Right |  |  |  |  |  |
Loans |  |  |  |  |  |
Total loans, including deferred loan loan costs and PCI | 33,637 |  | 61,997 |  |  |
Accounts Receivable | Asset Pledged as Collateral without Right |  |  |  |  |  |
Loans |  |  |  |  |  |
Total loans, including deferred loan loan costs and PCI | 16,529 |  | 797 |  |  |
Equipment | Asset Pledged as Collateral without Right |  |  |  |  |  |
Loans |  |  |  |  |  |
Total loans, including deferred loan loan costs and PCI |  |  | 321 |  |  |
Collateral |  |  |  |  |  |
Loans |  |  |  |  |  |
ACL Allocation | 8,161 |  | 7,878 |  |  |
Commercial |  |  |  |  |  |
Loans |  |  |  |  |  |
ACL Allocation | 9,685 | 6,728 | 3,998 | 10,499 | 11,532 | 11,968
Commercial | Asset Pledged as Collateral without Right |  |  |  |  |  |
Loans |  |  |  |  |  |
Total loans, including deferred loan loan costs and PCI | 16,529 |  | 1,634 |  |  |
Commercial | Real Estate | Asset Pledged as Collateral without Right |  |  |  |  |  |
Loans |  |  |  |  |  |
Total loans, including deferred loan loan costs and PCI |  |  | 837 |  |  |
Commercial | Accounts Receivable | Asset Pledged as Collateral without Right |  |  |  |  |  |
Loans |  |  |  |  |  |
Total loans, including deferred loan loan costs and PCI | 16,529 |  | 797 |  |  |
Commercial | Collateral |  |  |  |  |  |
Loans |  |  |  |  |  |
ACL Allocation | 4,286 |  | 2 |  |  |
Leases |  |  |  |  |  |
Loans |  |  |  |  |  |
ACL Allocation | 1,975 | 1,978 | 2,952 | 2,592 | 2,690 | 2,865
Leases | Asset Pledged as Collateral without Right |  |  |  |  |  |
Loans |  |  |  |  |  |
Total loans, including deferred loan loan costs and PCI |  |  | 321 |  |  |
Leases | Equipment | Asset Pledged as Collateral without Right |  |  |  |  |  |
Loans |  |  |  |  |  |
Total loans, including deferred loan loan costs and PCI |  |  | 321 |  |  |
Leases | Collateral |  |  |  |  |  |
Loans |  |  |  |  |  |
ACL Allocation |  |  | 320 |  |  |
Commercial real estate - Investor |  |  |  |  |  |
Loans |  |  |  |  |  |
ACL Allocation | 16,837 | 17,842 | 17,105 | 18,003 | 20,031 | 10,674
Commercial real estate - Investor | Asset Pledged as Collateral without Right |  |  |  |  |  |
Loans |  |  |  |  |  |
Total loans, including deferred loan loan costs and PCI | 8,531 |  | 15,735 |  |  |
Commercial real estate - Investor | Real Estate | Asset Pledged as Collateral without Right |  |  |  |  |  |
Loans |  |  |  |  |  |
Total loans, including deferred loan loan costs and PCI | 8,531 |  | 15,735 |  |  |
Commercial real estate - Investor | Collateral |  |  |  |  |  |
Loans |  |  |  |  |  |
ACL Allocation | 2,896 |  | 3,656 |  |  |
Commercial real estate - Owner occupied |  |  |  |  |  |
Loans |  |  |  |  |  |
ACL Allocation | 7,160 | 7,180 | 12,280 | 12,385 | 12,562 | 15,001
Commercial real estate - Owner occupied | Asset Pledged as Collateral without Right |  |  |  |  |  |
Loans |  |  |  |  |  |
Total loans, including deferred loan loan costs and PCI | 16,422 |  | 34,894 |  |  |
Commercial real estate - Owner occupied | Real Estate | Asset Pledged as Collateral without Right |  |  |  |  |  |
Loans |  |  |  |  |  |
Total loans, including deferred loan loan costs and PCI | 16,422 |  | 34,894 |  |  |
Commercial real estate - Owner occupied | Collateral |  |  |  |  |  |
Loans |  |  |  |  |  |
ACL Allocation |  |  | 3,900 |  |  |
Construction |  |  |  |  |  |
Loans |  |  |  |  |  |
ACL Allocation | 2,417 | 2,020 | 1,038 | 1,240 | 1,179 | 1,546
Construction | Asset Pledged as Collateral without Right |  |  |  |  |  |
Loans |  |  |  |  |  |
Total loans, including deferred loan loan costs and PCI | 5,766 |  | 7,162 |  |  |
Construction | Real Estate | Asset Pledged as Collateral without Right |  |  |  |  |  |
Loans |  |  |  |  |  |
Total loans, including deferred loan loan costs and PCI | 5,766 |  | 7,162 |  |  |
Construction | Collateral |  |  |  |  |  |
Loans |  |  |  |  |  |
ACL Allocation | 758 |  |  |  |  |
Residential real estate - Investor |  |  |  |  |  |
Loans |  |  |  |  |  |
ACL Allocation | 564 | 609 | 669 | 691 | 743 | 768
Residential real estate - Investor | Asset Pledged as Collateral without Right |  |  |  |  |  |
Loans |  |  |  |  |  |
Total loans, including deferred loan loan costs and PCI | 413 |  | 422 |  |  |
Residential real estate - Investor | Real Estate | Asset Pledged as Collateral without Right |  |  |  |  |  |
Loans |  |  |  |  |  |
Total loans, including deferred loan loan costs and PCI | 413 |  | 422 |  |  |
Residential real estate - Owner occupied |  |  |  |  |  |
Loans |  |  |  |  |  |
ACL Allocation | 1,740 | 1,618 | 1,821 | 1,857 | 1,868 | 2,046
Residential real estate - Owner occupied | Asset Pledged as Collateral without Right |  |  |  |  |  |
Loans |  |  |  |  |  |
Total loans, including deferred loan loan costs and PCI | 1,644 |  | 1,506 |  |  |
Residential real estate - Owner occupied | Real Estate | Asset Pledged as Collateral without Right |  |  |  |  |  |
Loans |  |  |  |  |  |
Total loans, including deferred loan loan costs and PCI | 1,644 |  | 1,506 |  |  |
Residential real estate - Owner occupied | Collateral |  |  |  |  |  |
Loans |  |  |  |  |  |
ACL Allocation | 221 |  |  |  |  |
Multifamily |  |  |  |  |  |
Loans |  |  |  |  |  |
ACL Allocation | 2,463 | 2,804 | 2,728 | 2,572 | 2,737 | 2,453
Multifamily | Asset Pledged as Collateral without Right |  |  |  |  |  |
Loans |  |  |  |  |  |
Total loans, including deferred loan loan costs and PCI | 861 |  | 1,402 |  |  |
Multifamily | Real Estate | Asset Pledged as Collateral without Right |  |  |  |  |  |
Loans |  |  |  |  |  |
Total loans, including deferred loan loan costs and PCI | 861 |  | 1,402 |  |  |
HELOC |  |  |  |  |  |
Loans |  |  |  |  |  |
ACL Allocation | 1,574 | 1,483 | 1,656 | 1,652 | 1,694 | 1,806
HELOC | Asset Pledged as Collateral without Right |  |  |  |  |  |
Loans |  |  |  |  |  |
Total loans, including deferred loan loan costs and PCI |  |  | 39 |  |  |
HELOC | Real Estate | Asset Pledged as Collateral without Right |  |  |  |  |  |
Loans |  |  |  |  |  |
Total loans, including deferred loan loan costs and PCI |  |  | 39 |  |  |
Other |  |  |  |  |  |
Loans |  |  |  |  |  |
ACL Allocation | $ 7 | $ 7 | $ 17 | $ 238 | $ 278 | $ 353

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