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Amount of investment in collateral dependent financing receivable individually evaluated for purposes of determining the ACL for wich there is no related allowance for credit losses.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Amount of investment in collateral dependent financing receivable individually evaluated for purposes of determining the ACL for wich there is a related allowance for credit losses.

No definition available.

Name:	fbp_CollateralDependentFinancingReceivableIndividuallyEvaluatedWithRelatedAllowanceRecordedInvestment
Namespace Prefix:	fbp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 11B
-Subparagraph (g)
-SubTopic 10
-Topic 310
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B

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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.

No definition available.

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