BORROWINGS - Summary of Collateral Pledged for Repurchase Agreements (Details) - U.S. Government-sponsored mortgage-backed securities - USD ($) $ in Thousands |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Assets Sold under Agreements to Repurchase [Line Items] | ||
| Remaining Contractual Maturity of the Agreements | $ 99,638 | $ 103,755 |
| Overnight and Continuous | ||
| Assets Sold under Agreements to Repurchase [Line Items] | ||
| Remaining Contractual Maturity of the Agreements | 99,638 | 103,755 |
| Up to 30 Days | ||
| Assets Sold under Agreements to Repurchase [Line Items] | ||
| Remaining Contractual Maturity of the Agreements | 0 | 0 |
| 30-90 Days | ||
| Assets Sold under Agreements to Repurchase [Line Items] | ||
| Remaining Contractual Maturity of the Agreements | 0 | 0 |
| Greater Than 90 Days | ||
| Assets Sold under Agreements to Repurchase [Line Items] | ||
| Remaining Contractual Maturity of the Agreements | $ 0 | $ 0 |