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INVESTMENT SECURITIES (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items] |  |  |
Money market investments | $ 4,623 | $ 4,161 | $ 8,952
Restricted cash | 0 | 157 | 175
Intersegment revenue | 35,000 | 196,742 | 380,322
Securitized GNMA pools retained, amortized cost | $ 76,400 | $ 112,400 | $ 149,100
Securitized GNMA pool retained, yield | 5.33% | 3.90% | 2.45%
Retained FNMA pools | $ 17,200 | $ 13,700 | $ 0
FNMA pools retained, yield | 5.37% | 4.97% |
OFG Bancorp |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Intersegment revenue | $ 35,000 |  |
OFG Bancorp | Private Placement Revenue Bond |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Acquisition period | 2 years |  |
Investment securities | US Treasury securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Available for sale, purchase price | $ 300,000 | $ 550,000 | $ 0
Proceeds from sale of available for sale securities | 203,300 | 242,400 |
Loss on available for sale securities | 1,100 | 247 |
Debt Securities, Held To Maturity, Purchase Price |  | 200,000 |
OIB |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Restricted cash | 325 | 325 |
Oriental Overseas |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Restricted cash | 325 | 325 |
Asset Pledged as Collateral |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Pledged assets | 1,624,000 | 294,200 |
Asset Pledged as Collateral | Public Funds |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Pledged assets | $ 1,575,000 | $ 293,700 |

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- Definition Amount of realized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-9 + Details
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- Definition The aggregate fair value as of the balance sheet date of financial instruments and other positions owned by the entity including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities. Includes both pledged and unpledged holdings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481961/940-320-45-2 + Details
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