XML 160 R149.htm IDEA: XBRL DOCUMENT v3.10.0.1

REGULATORY MATTERS, COMMITMENTS AND CONTINGENCIES - Additional Information (Detail) - USD ($) $ in Millions	Sep. 30, 2018	Nov. 21, 2017
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Commitments To Extent Credit	$ 1,300.0
Banking Organizations Basel Advanced Approach Asset Requirement		$ 250,000.0
Foreign Subsidiaries Basel Advanced Approach Asset Requirement		$ 10,000.0
Credit Cards [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Commitments To Extent Credit	664.4
Commercial And Financial Standby Letters Of Credit [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Commitments To Extent Credit	$ 72.5

X

- Definition

Basel advanced approach rules apply to banking organizations with more than $250 billion in assets

+ References

No definition available.

+ Details

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

X

- Definition

Amount represents legally binding commitments to extend credit to a counterparty under certain terms and conditions.

+ References

No definition available.

+ Details

Name:	fbp_CommitmentsToExtentCredit
Namespace Prefix:	fbp_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Advanced approaches rules apply only to banking organizations with more than $250 billion in total consolidated assets or at least $10 billion in total on-balance sheet foreign exposure.

+ References

No definition available.

+ Details

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

X

- Definition

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.

+ References

No definition available.

+ Details

Name:	us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	fbp_CommitmentsAxis=fbp_CreditCardsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	fbp_CommitmentsAxis=fbp_CommercialAndFinancialStandbyLettersOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: