XML 149 R138.htm IDEA: XBRL DOCUMENT
v3.21.2

SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE - Securities Sold Under Agreements to Repurchase (Parenthetical) (Detail) - USD ($) $ in Thousands | Sep. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Assets Sold under Agreements to Repurchase [Line Items] |  |  |
Reverse repurchase agreements | $ 0 |  | $ 0
Assets sold under agreements to repurchase fixed rate |  | 3.90% |
Maximum [Member] | 3-Month LIBOR [Member] |  |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |  |
Assets sold under agreements to repurchase interest rate | 1.32% |  |
Minimum [Member] | 3-Month LIBOR [Member] |  |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |  |
Assets sold under agreements to repurchase interest rate | 1.30% |  |
long term debt [member] |  |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |  |
Reverse repurchase agreements |  | $ 200,000 |
long term debt [member] | Weighted Average [Member] |  |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |  |
Assets sold under agreements to repurchase interest rate | 3.35% |  | 1.77%

X
- Definition Interest fixed rate on the amount to be repaid to the counterparty to the repurchase agreement when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under the repurchase agreement exceeds 10 percent of total assets. + References No definition available. + Details
Name: | fbp_AssetsSoldUnderAgreementsToRepurchaseFixedRate
Namespace Prefix: | fbp_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Interest rate on the amount to be repaid to the counterparty to the repurchase agreement when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under the repurchase agreement exceeds 10 percent of total assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(m)(1)(i)(A)(ii)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
Name: | us-gaap_AssetsSoldUnderAgreementsToRepurchaseInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
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_AssetsSoldUnderAgreementsToRepurchaseLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, after effects of master netting arrangements, of securities borrowed from entities in exchange for collateral offset against an obligation to return collateral under a master netting arrangement. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226016-175313 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_SecuritiesBorrowedAmountOffsetAgainstCollateral
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=fbp_ThreeMonthLiborMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_LongTermDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_WeightedAverageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |