Name:	bpop_HistoricalLossPeriod
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Period Type:	duration

Recent loss trend adjustment replaces the base loss rate, when these trends are higher than the respective base loss rates, up to a determined cap. The objective of this adjustment is to include information about recent increases in loss rates in a timely and prudent manner.

No definition available.

Name:	bpop_RecentLossTrendAdjustment
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Data Type:	xbrli:stringItemType
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Percentage of the ALLL for our loan portfolios that utilized the recent loss trend adjustment instead of the base loss.

No definition available.

Name:	bpop_RecentLossTrendAdjustmentPercentage
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_FinancingReceivableModificationsLineItems
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Data Type:	xbrli:stringItemType
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The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=82895541&loc=d3e18845-111554

Name:	us-gaap_FinancingReceivableModificationsRecordedInvestment
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Reflects the unfunded portion of contractual agreements to lend funds to borrowers for loans whose terms have been modified by troubled debt restructuring.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82895541&loc=d3e18794-111554

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Data Type:	xbrli:monetaryItemType
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Data Type:	na
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Name:	us-gaap_StatementBusinessSegmentsAxis=bpop_PopularBankMember
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Data Type:	na
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Data Type:	na
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Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=bpop_CommercialConstructionPortfoliosMember
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Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_MortgageReceivablesMember
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Name:	us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis=bpop_GuaranteedByUsSponsoredEntitiesMember
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Data Type:	na
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Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_CommercialPortfolioSegmentMember
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Data Type:	na
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