COMMITMENTS AND CONTINGENCIES - Narrative (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|
Sep. 30, 2026 |
Jun. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
Mar. 31, 2026 |
Dec. 31, 2025 |
Jun. 30, 2025 |
Dec. 31, 2024 |
|
| Other Commitments [Line Items] | |||||||||
| Allowance for loan losses | $ 44,038 | $ 43,660 | $ 44,892 | $ 44,038 | $ 44,892 | $ 43,666 | $ 43,888 | $ 51,014 | $ 47,729 |
| Provision for/(reversal of) credit losses | 500 | 77 | 750 | 377 | 9,983 | ||||
| Reserve for unfunded loan commitments | |||||||||
| Other Commitments [Line Items] | |||||||||
| Allowance for loan losses | 407 | 407 | 504 | 407 | 504 | $ 484 | 484 | $ 629 | $ 729 |
| Provision for/(reversal of) credit losses | 0 | $ (77) | $ (125) | (77) | $ (225) | ||||
| Affordable Housing Partnerships and SBIC Funds | |||||||||
| Other Commitments [Line Items] | |||||||||
| Other commitment | $ 1,100 | $ 1,100 | $ 1,600 | ||||||