COVER - USD ($) $ in Millions	12 Months Ended
COVER - USD ($) $ in Millions	Dec. 31, 2025	Jan. 31, 2026	Jun. 30, 2025
Cover [Abstract]
Document Type	10-K/A
Document Annual Report	true
Document Period End Date	Dec. 31, 2025
Document Transition Report	false
Entity File Number	001-12647
Entity Registrant Name	OFG Bancorp
Entity Incorporation, State or Country Code	PR
Entity Tax Identification Number	66-0538893
Entity Address, Address Line One	254 Muñoz Rivera Avenue
Entity Address, City or Town	San Juan
Entity Address, Country	PR
Entity Address, Postal Zip Code	00918
City Area Code	787
Local Phone Number	771-6800
Title of 12(b) Security	Common shares, par value $1.00 per share
Trading Symbol	OFG
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 1,915
Entity Common Stock, Shares Outstanding		43,063,277
Documents Incorporated by Reference	Portions of the Company’s definitive proxy statement relating to the 2026 annual meeting of shareholders are incorporated herein by reference in response to Items 10 through 14 of Part III.
Amendment Flag	true
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	FY
Entity Central Index Key	0001030469
Current Fiscal Year End Date	--12-31
Amendment Description	This Amendment No. 1 on Form 10-K/A (the “Amendment”) amends the Annual Report on Form 10-K for the year ended December 31, 2025 (the “Annual Report”) of OFG Bancorp (the “Company”), as originally filed (the “Original Filing”) with the U.S. Securities and Exchange Commission (the “SEC”) on February 25, 2026 solely to correct the cover page to the Annual Report, which checked the incorrect box regarding well-known seasoned issuer status. Except as described above, this Amendment does not amend, modify or update the information in, or exhibits to, the Original Filing, and we have not updated disclosures included therein to reflect any subsequent developments or events.

OFG BANCORP 10-K/A