XML 126 R114.htm IDEA: XBRL DOCUMENT
v3.22.2.2

STOCK-BASED COMPENSATION - Treasury Stock - Additional Information (Detail) - shares | 9 Months Ended
--- | ---
Sep. 30, 2022 | Sep. 30, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Shares Withheld for Tax Withholding Obligation | 202,649 | 213,757
Omnibus Plan [Member] |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Shares Withheld for Tax Withholding Obligation | 202,649 | 213,757

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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement. + References No definition available. + Details
Name: | us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_PlanNameAxis=fbp_OmnibusPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |