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v3.19.2

Organization, Consolidation and Basis of Presentation (Details) $ in Thousands | Dec. 31, 2018 USD ($)
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Organization, Consolidation and Basis of Presentation [Line Items] |
Held-to-maturity, Amortized cost | $ 424,740

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- References No definition available. + Details
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Namespace Prefix: | ofg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount, before other-than-temporary impairment (OTTI) accretion, of investment in debt securities measured at amortized cost (held-to-maturity). + References No definition available. + Details
Name: | us-gaap_HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant