SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	3 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	Mar. 31, 2023
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Nature of Operations OFG is a publicly-owned financial holding company incorporated under the laws of the Commonwealth of Puerto Rico. OFG operates through various subsidiaries including, a commercial bank, Oriental Bank (the “Bank”), a securities broker-dealer and investment adviser, Oriental Financial Services LLC (“Oriental Financial Services”), an insurance agency, Oriental Insurance, LLC (“Oriental Insurance”), a captive reinsurance company, OFG Reinsurance Ltd (“OFG Reinsurance”), and OFG Ventures LLC (“OFG Ventures”), which holds investments. Through these subsidiaries and their respective divisions, OFG provides a wide range of banking and financial services such as commercial, consumer and mortgage lending, auto leasing and lending, financial planning, insurance sales, money management, investment banking and securities brokerage services, as well as corporate and individual trust services. Effective December 31, 2022, OFG sold its retirement plan administration business which was operated under a retirement plan administrator, Oriental Pension Consultants, Inc. (“OPC”), the OPC subsidiary and OPC thereafter discontinued its operations. The results for the quarter ended March 31, 2022 included these operations. Basis of Presentation The accompanying unaudited consolidated financial statements of OFG have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and in accordance with guidance provided by the Securities and Exchange Commission (“SEC”). Accordingly, these consolidated financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates. In the opinion of management, the accompanying unaudited consolidated financial statements reflect all adjustments considered necessary for a fair presentation of the financial position, results of operations and cash flows of OFG on a consolidated basis, and all such adjustments are of a normal recurring nature. The consolidated financial statements should be read in conjunction with the audited consolidated financial statements and footnotes thereto included in OFG’s annual report on Form 10-K for the fiscal year ended December 31, 2022 (the “2022 Form 10-K”). Operating results for three-months period ended March 31, 2023 are not necessarily indicative of the results that may be expected for the year ending December 31, 2023. OFG evaluated subsequent events through the filing date of its quarterly report on Form 10-Q with the SEC and has recorded or disclosed those material events or transactions as described within the accompanying consolidated financial statements and notes. Material estimates that are particularly susceptible to significant change in the near term relate mainly to the determination of the allowance for credit losses, the valuation of securities, the determination of income taxes, impairment of securities, and goodwill valuation and impairment assessment Recently Adopted Accounting Standards Updates Financial Instruments—Credit Losses Troubled Debt Restructurings and Vintage Disclosures. In March 2022, the Financial Accounting Standards Board issued ASU 2022-02 to address the accounting guidance on troubled debt restructurings (“TDRs”) for creditors in ASC 310-402 and amend the guidance on vintage disclosures to require disclosure of current-period gross write-offs by year of origination. The ASU also updates the requirements related to accounting for credit losses under ASC 326 and adds enhanced disclosures for creditors with respect to loan refinancing and restructurings for borrowers experiencing financial difficulty. The amendments in this update are effective for fiscal years beginning after December 15, 2022, and interim periods within those fiscal years. OFG adopted the guidance related to the elimination of the recognition and measurement of TDRs and the enhancement of disclosures for loan restructurings for borrowers experiencing financial difficulty as of January 1, 2023, using the prospective transition method. As of our adoption date, all restructurings, including restructurings for borrowers experiencing financial difficulty, are evaluated to determine whether they result in a new loan or a continuation of an existing loan. Loan restructurings for borrowers experiencing financial difficulty are generally accounted for as a continuation of the existing loan as the terms of the restructured loans are typically not at market rates. When a loan is restructured under ASU 2022-02 we continue to measure impairment on the loan using a discounted cash flow approach that utilizes the loan’s restructured terms, including the post-restructuring interest rate, and it did not result in any material changes to the allowance for credit losses. We also adopted the disclosure guidance related to the presentation of gross write-offs by year of origination in our vintage disclosures on January 1, 2023. At the adoption of this guidance on January 1, 2023, there was no material impact on our financial statements.