LOANS (Aging of the Amortized Cost of Collateral-Dependent Loans Held For Investment) (Details) - Commercial loans - Domestic - Puerto Rico - USD ($) $ in Thousands |
Mar. 31, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Commercial loans secured by real estate | $ 4,924 | $ 3,065 |
| Commercial secured by real estate | Real Estate | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Commercial loans secured by real estate | 3,026 | 3,065 |
| Other commercial and industrial | Real Estate | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Commercial loans secured by real estate | $ 1,898 | $ 0 |