OUTSTANDING COMMITMENTS AND CONTINGENT LIABILITIES - Schedule of Contractual Amount of Exposure to Off-Balance-Sheet Risk (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Credit Commitments and Contingencies | ||
| Total commitments | $ 4,109,842 | $ 4,820,613 |
| Commitments to extend credit | ||
| Credit Commitments and Contingencies | ||
| Total commitments | 4,006,100 | 4,696,867 |
| Standby letters of credit | ||
| Credit Commitments and Contingencies | ||
| Total commitments | $ 103,742 | $ 123,746 |