FAIR VALUE (Tables) |
3 Months Ended |
|---|---|
Mar. 31, 2026 | |
| FAIR VALUE [Abstract] | |
| Assets and Liabilities Measured at Fair Value on Recurring Basis [Table Text Block] | Assets and liabilities measured at fair value on a recurring basis are summarized below as of As of March 31, 2026 As of December 31, 2025 Fair Value Measurements Using Fair Value Measurements Using Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total (In thousands) Assets: U.S. Treasury securities $ 497,254 $ - $ - $ 497,254 $ 497,342 $ - $ - $ 497,342 Noncallable U.S. agencies debt securities - 277,130 - 277,130 - 336,849 - 336,849 Callable U.S. agencies debt securities - 562,787 - 562,787 - 566,263 - 566,263 MBS - 3,326,804 3,113 (1) 3,329,917 - 3,148,692 3,266 (1) 3,151,958 Puerto Rico government obligation - - 1,609 1,609 - - 1,620 1,620 5,005 - - 5,005 5,024 - - 5,024 Derivative assets - 350 - 350 - 345 - 345 Liabilities: Derivative liabilities - 162 - 162 - 200 - 200 (1) Related to private label MBS. |
| Fair Value of Assets and Liabilities Measured on Recurring Basis [Table Text Block] | The recurring basis using significant unobservable inputs (Level 3) for the Quarter Ended March 31, 2026 2025 Level 3 Instruments Only Securities Available for Sale (1) Securities Available for Sale (1) (In thousands) Beginning balance $ 4,886 $ 6,815 182 46 (2) (88) 5 (258) (233) Ending balance $ 4,722 $ 6,633 (1) Amounts mostly related to private label MBS. (2) Changes in unrealized (losses) gains included in earnings were |
| Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] | The significant unobservable inputs (Level 3) as of the indicated dates: March 31, 2026 Fair Value Valuation Technique Unobservable Input Range Weighted Average Minimum Maximum (Dollars in thousands) Available-for-sale $ 3,113 Discounted cash flows Discount rate 16.2% 16.2% 16.2% Prepayment rate 1.6% 8.0% 2.5% Projected cumulative loss rate 0.1% 12.5% 6.8% $ 1,609 Discounted cash flows Discount rate 10.8% 10.8% 10.8% Projected cumulative loss rate 23.6% 23.6% 23.6% December 31, 2025 Fair Value Valuation Technique Unobservable Input Range Weighted Average Minimum Maximum (Dollars in thousands) Available-for-sale $ 3,266 Discounted cash flows Discount rate 15.9% 15.9% 15.9% Prepayment rate 1.6% 8.0% 3.1% Projected cumulative loss rate 0.1% 11.4% 5.5% $ 1,620 Discounted cash flows Discount rate 10.8% 10.8% 10.8% Projected cumulative loss rate 24.0% 24.0% 24.0% |
| Impairment of Valuation Adjustments were Recorded for Assets Recognized at Fair Value [Table Text Block] | For the quarters ended March 31, 2026 and 2025, the Corporation recorded fair value on a non-recurring basis and still held at the respective reporting dates, Carrying value as of March 31, Related to losses recorded for the Quarter Ended March 31, 2026 2025 2026 2025 (In thousands) Level 3: Loans receivable $ 3,970 $ 4,647 $ (436) $ (164) OREO (2) 119 335 (6) (24) (1) Consists mainly of the fair values from assumptions of the 3 % for the quarter 22 % for the quarter ended March 31, 2025. (2) The Corporation characteristics and assumptions of market valuation adjustments 16 % for the 2 % to 24 % for the quarter ended March 31, 2025. |
| Estimated Fair Value and Carrying Value of Financial Instruments [Table Text Block] | The instruments as of the indicated dates: Total Carrying Amount in Statement of Financial Condition as of March 31, 2026 Fair Value Estimate as March 31, 2026 Level 1 Level 2 Level 3 (In thousands) Assets: Cash and due from banks and money market investments (amortized $ 550,899 $ 550,899 $ 550,899 $ - $ - Available-for-sale debt 4,668,697 4,668,697 497,254 4,166,721 4,722 Held-to-maturity debt securities: 257,522 (641) $ 256,881 253,485 - 171,353 82,132 Equity securities (amortized cost) 41,427 41,427 - 41,427 (1) - Other equity securities (fair value) 5,005 5,005 5,005 - - Loans held for sale (lower of cost or market) 12,805 13,006 - 13,006 - Loans held for investment: 13,091,077 (245,060) $ 12,846,017 12,773,439 - - 12,773,439 MSRs (amortized cost) 22,880 40,485 - - 40,485 Derivative assets (fair value) (2) 350 350 - 350 - Liabilities: Deposits (amortized cost) $ 16,595,821 $ 16,600,047 $ - $ 16,600,047 $ - Short-term advances from the FHLB (amortized cost) 90,000 90,001 - 90,001 - Long-term advances from the FHLB (amortized cost) 200,000 201,168 - 201,168 - Derivative liabilities (fair value) (2) 162 162 - 162 - (1) Includes FHLB stock with a carrying value of $ 24.7 (2) Includes interest rate swap agreements, forward contracts, and interest rate lock commitments. Total Carrying Amount in Statement of Financial Condition as of December 31, 2025 Fair Value Estimate as December 31, 2025 Level 1 Level 2 Level 3 (In thousands) Assets: Cash and due from banks and money market investments (amortized $ 658,599 $ 658,599 $ 658,599 $ - $ - Available-for-sale debt 4,554,032 4,554,032 497,342 4,051,804 4,886 Held-to-maturity debt securities: 265,296 (733) $ 264,563 262,055 - 178,815 83,240 Equity securities (amortized cost) 39,729 39,729 - 39,729 (1) - Other equity securities (fair value) 5,024 5,024 5,024 - - Loans held for sale (lower of cost or market) 16,697 16,996 - 16,996 - Loans held for investment: 13,125,356 (249,037) $ 12,876,319 12,806,115 - - 12,806,115 MSRs (amortized cost) 23,288 40,874 - - 40,874 Derivative assets (fair value) (2) 345 345 - 345 - Liabilities: Deposits (amortized cost) $ 16,670,143 $ 16,675,488 $ - $ 16,675,488 $ - Long-term advances from the FHLB (amortized cost) 290,000 292,581 - 292,581 - Derivative liabilities (fair value) (2) 200 200 - 200 - (1) Includes FHLB stock with a carrying value of $ 24.7 (2) Includes interest rate swap agreements, forward contracts, and interest rate lock commitments. |