Name:	ofg_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInAoci
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The net amount of gross unrealized losses for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.

No definition available.

Name:	ofg_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInAoci
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Reflects the calculation as of the balance sheet date of the average interest rate weighted by the amount of investment securities outstanding by type or by instrument at that time.

No definition available.

Name:	ofg_AvailableForSaleSecuritiesWeightedAverageYield
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Reflects the calculation as of the balance sheet date of the average interest rate weighted by the amount of held to maturity securities outstanding by type or by instrument at that time.

No definition available.

Name:	ofg_Heldtomaturitysecuritiesdebtmaturitiesaverageyield
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As of the balance sheet date, the excess of fair value over carrying value (amortized cost) of a debt security categorized as held-to-maturity, exclusive of dividend or interest income recognized but not yet received and exclusive of any write-downs for other-than-temporary impairment. Such item represents the gross unrecognized holding gain.

No definition available.

Name:	ofg_HeldToMaturitySecuritiesUnrecognizedGains
Namespace Prefix:	ofg_
Data Type:	xbrli:monetaryItemType
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As of the balance sheet date, the excess of carrying value (amortized cost) over fair value of a debt security categorized as held-to-maturity, exclusive of dividend or interest income recognized but not yet received and exclusive of any write-downs for other-than-temporary impairment. Such item represents the gross unrecognized holding loss.

No definition available.

Name:	ofg_HeldToMaturitySecuritiesUnrecognizedLoss
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This item represents the cost of debt and equity securities, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

No definition available.

Name:	ofg_Marketablesecuritiesamortizedcost
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Data Type:	xbrli:monetaryItemType
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This item represents the gross unrealized gains for securities, at a point in time, which include held-to-maturity and Available for sale securities.

No definition available.

Name:	ofg_MarketableSecuritiesGrossUnrealizedGain
Namespace Prefix:	ofg_
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This item represents the gross unrealized losses for securities, at a point in time, which include held-to-maturity and Available for sale securities.

No definition available.

Name:	ofg_MarketableSecuritiesGrossUnrealizedLosses
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Reflects the calculation as of the balance sheet date of the average interest rate weighted by the amount of marketable securities outstanding by type or by instrument at that time.

No definition available.

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Data Type:	num:percentItemType
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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

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This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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Amount before other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

No definition available.

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Fair value of investments in debt securities classified as held-to-maturity.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Total debt and equity financial instruments including: (1) securities held-to-maturity, (2) trading securities, and (3) securities available-for-sale.

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-Publisher FASB

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