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Period of guaranteed residential mortgage loans that are no longer accruing interest.

No definition available.

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Represent the minimum receivable amount to be considered a collateral dependent loan

No definition available.

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Threshold period past due, considered collateral dependent.

No definition available.

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Threshold period past due of financing receivables to be considered nonperforming.

No definition available.

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Troubled debt restructurings sustained performance period

No definition available.

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Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Name Accounting Standards Codification
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-Paragraph 3B
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Paragraph 5
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-5

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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.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-14

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 80
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479294/326-20-55-80

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Threshold period for when financing receivable is considered past due to write off as uncollectible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Name:	us-gaap_FinancialInstrumentPerformanceStatusAxis=us-gaap_NonperformingFinancingReceivableMember
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Data Type:	na
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Name:	us-gaap_ClassOfFinancingReceivableTypeOfBorrowerAxis=fbp_PuertoRicoHousingFinanceAuthorityMember
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Data Type:	na
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Data Type:	na
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Name:	srt_RangeAxis=srt_MinimumMember
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Namespace Prefix:
Data Type:	na
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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=fbp_PersonalLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

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