XML 114 R99.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

ADVANCES FROM THE FEDERAL HOME LOAN BANK (FHLB) - Advances from FHLB Mature (Parenthetical) (Detail) | 3 Months Ended
--- | ---
Mar. 31, 2024
ADVANCES FROM THE FEDERAL HOME LOAN BANK (FHLB) [Abstract] |
FHLB, average remaining term to maturity | 2 years 2 months 26 days

X
- Definition Federal Home Loan Bank Advances, Average Remaining Term To Maturity + References No definition available. + Details
Name: | fbp_FederalHomeLoanBankAdvancesAverageRemainingTermToMaturity
Namespace Prefix: | fbp_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_FederalHomeLoanBankAdvancesFixedRateAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration