$FBP
FIRST BANCORP /PR/ Stock $fbp

$fbp Overview Financials Valuation SEC Filings Company Website

2017 Q4 Form 10-Q Financial Statement

#000105770617000023 Filed on November 09, 2017

Income Statement

Concept	2017 Q4	2017 Q3	2016 Q3
Revenue		$148.0M	$143.6M
YoY Change		3.08%	-4.16%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development		$1.603M	$1.711M
YoY Change		-6.31%	-21.84%
% of Gross Profit
Depreciation & Amortization	$5.200M	$5.200M	$5.700M
YoY Change	-3.7%	-8.77%	-13.64%
% of Gross Profit
Operating Expenses		$1.603M	$1.711M
YoY Change		-6.31%	-21.84%
Operating Profit
YoY Change
Interest Expense		$25.16M	$25.40M
YoY Change		-0.91%	2.06%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$26.40M	-$19.15M	$34.52M
YoY Change	-29.03%	-155.48%	-22.45%
Income Tax	$2.200M	-$8.398M	$10.44M
% Of Pretax Income	8.33%		30.26%
Net Earnings	$24.20M	-$10.75M	$24.07M
YoY Change	1.26%	-144.66%	63.13%
Net Earnings / Revenue		-7.27%	16.77%
Basic Earnings Per Share		-$0.05	$0.11
Diluted Earnings Per Share	$112.0K	-$0.05	$0.11
COMMON SHARES
Basic Shares Outstanding	216.2M shares	214.2M shares	212.9M shares
Diluted Shares Outstanding		214.2M shares	216.6M shares

Balance Sheet

Concept	2017 Q4	2017 Q3	2016 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$716.4M	$737.2M	$528.9M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$141.9M	$144.2M	$154.0M
YoY Change	-5.92%	-6.33%	-5.52%
Goodwill	$28.10M	$28.10M	$28.10M
YoY Change	0.0%	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$12.26B	$12.17B	$12.08B
YoY Change	2.84%	0.81%	-5.82%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$146.0M	$130.0M	$216.0M
YoY Change	23.73%	-39.81%	43.05%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$300.0M	$300.0M	$600.0M
YoY Change	0.0%	-50.0%	-14.29%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$146.0M	$130.0M	$216.0M
YoY Change	23.73%	-39.81%	43.05%
LONG-TERM LIABILITIES
Long-Term Debt	$209.0M	$209.0M	$123.0M
YoY Change	-3.24%	69.92%	-45.58%
Other Long-Term Liabilities	$0.00	$0.00	$0.00
YoY Change	-100.0%		-100.0%
Total Long-Term Liabilities	$209.0M	$209.0M	$123.0M
YoY Change	-3.69%	69.92%	-45.81%
TOTAL LIABILITIES
Total Short-Term Liabilities	$146.0M	$130.0M	$216.0M
Total Long-Term Liabilities	$209.0M	$209.0M	$123.0M
Total Liabilities	$10.39B	$10.32B	$10.28B
YoY Change	2.53%	0.43%	-7.6%
SHAREHOLDERS EQUITY
Retained Earnings	$895.2M	$871.7M
YoY Change	7.74%
Common Stock	$22.04M	$22.02M	$21.86M
YoY Change	0.77%	0.74%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$410.0K	$404.0K	$122.0K
YoY Change	228.0%	231.15%
Treasury Stock Shares	4.104M shares	4.045M shares	1.218M shares
Shareholders Equity	$1.869B	$1.854B	$1.800B
YoY Change
Total Liabilities & Shareholders Equity	$12.26B	$12.17B	$12.08B
YoY Change	2.84%	0.81%	-5.82%

Cashflow Statement

Concept	2017 Q4	2017 Q3	2016 Q3
OPERATING ACTIVITIES
Net Income	$24.20M	-$10.75M	$24.07M
YoY Change	1.26%	-144.66%	63.13%
Depreciation, Depletion And Amortization	$5.200M	$5.200M	$5.700M
YoY Change	-3.7%	-8.77%	-13.64%
Cash From Operating Activities	$41.40M	$63.00M	$36.90M
YoY Change	-48.44%	70.73%	-44.43%
INVESTING ACTIVITIES
Capital Expenditures	-$1.800M	-$2.300M	-$2.900M
YoY Change	-18.18%	-20.69%	-14.71%
Acquisitions
YoY Change
Other Investing Activities	-$114.1M	-$19.30M	$111.6M
YoY Change	-17.8%	-117.29%	1616.92%
Cash From Investing Activities	-$116.0M	-$21.60M	$108.7M
YoY Change	-17.73%	-119.87%	3523.33%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	53.90M	263.1M	-444.6M
YoY Change	-131.97%	-159.18%	-311.82%
NET CHANGE
Cash From Operating Activities	41.40M	63.00M	36.90M
Cash From Investing Activities	-116.0M	-21.60M	108.7M
Cash From Financing Activities	53.90M	263.1M	-444.6M
Net Change In Cash	-20.70M	304.5M	-299.0M
YoY Change	-90.97%	-201.84%	-207.05%
FREE CASH FLOW
Cash From Operating Activities	$41.40M	$63.00M	$36.90M
Capital Expenditures	-$1.800M	-$2.300M	-$2.900M
Free Cash Flow	$43.20M	$65.30M	$39.80M
YoY Change	-47.64%	64.07%	-42.98%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	171
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	1786243000	USD
CY2016Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0
CY2016Q4	us-gaap	Interest Bearing Domestic Deposit Checking InterestBearingDomesticDepositChecking	1075929000	USD
CY2017Q3	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	0	USD
	fbp	Direct Non Interest Expenses DirectNonInterestExpenses	197529000	USD
	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	3878000	USD
CY2017Q3	us-gaap	Debt Instrument Description Of Variable Rate Basis DebtInstrumentDescriptionOfVariableRateBasis	90-day LIBOR
CY2016Q3	fbp	Troubled Debt Restructurings Loans Sold TroubledDebtRestructuringsLoansSold	0	USD
CY2016Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	22914000	USD
CY2017Q3	fbp	Callable Debt Securities Held At Premium CallableDebtSecuritiesHeldAtPremium	4200000	USD
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	11220000	USD
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	686000	USD
CY2017Q3	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	6792000	USD
CY2017Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.1
CY2017Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	37128000	USD
	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	5947000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	172493000	USD
CY2016Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	2000000000	shares
CY2017Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	7122000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	7098000	USD
	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	66992000	USD
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	814540000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	122077000	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	6687000	USD
CY2017Q3	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	1391000	USD
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2017Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	216175003	shares
CY2016	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	924341000	USD
CY2016Q4	fbp	Other Held To Maturity Securities OtherHeldToMaturitySecurities	156190000	USD
CY2017Q3	us-gaap	Insurance Investment Income InsuranceInvestmentIncome	1377000	USD
CY2017Q3	fbp	Principal Repayments PrincipalRepayments	1186000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	270345000	USD
CY2017Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	8877214000	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	6104000	USD
CY2016Q3	us-gaap	Interest Expense Federal Funds Purchased And Securities Sold Under Agreements To Repurchase InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	5363000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	19090000	USD
CY2016Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-12157000	USD
CY2017Q3	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Amount Of Available Unused Funds FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresAmountOfAvailableUnusedFunds	502700000000	USD
CY2015Q1	fbp	Branches Doral BranchesDoral	10
CY2016Q4	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	1439697000	USD
CY2016Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	50006000	USD
CY2016Q3	us-gaap	Contractually Specified Servicing Fees Amount ContractuallySpecifiedServicingFeesAmount	1930000	USD
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	4178791	shares
CY2016Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	216187000	USD
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	166376000	USD
CY2016Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	28981000	USD
	us-gaap	Interest Expense InterestExpense	78284000	USD
	fbp	Period Of Residential Mortgage Loan That Are No Longer Accruing Interest PeriodOfResidentialMortgageLoanThatAreNoLongerAccruingInterest	P1Y3M0D
	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	39361000	USD
	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2017Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	108971000	USD
CY2017Q3	fbp	Insurance And Supervisory Fees InsuranceAndSupervisoryFees	4353000	USD
CY2016Q4	us-gaap	Other Assets OtherAssets	476430000	USD
CY2015Q2	fbp	Trust Preferred Securities Exchanged Liquidation Value TrustPreferredSecuritiesExchangedLiquidationValue	5300000	USD
CY2016Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	1881920000	USD
CY2017Q3	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	15604000	USD
CY2016Q3	fbp	Segment Reporting Information Average Non Earning Assets SegmentReportingInformationAverageNonEarningAssets	926043000	USD
CY2016Q3	fbp	Other Expense Not Allocated OtherExpenseNotAllocated	24901000	USD
	fbp	Period During Which Credit Card Loans Continue To Accrue Finance Charges And Fees PeriodDuringWhichCreditCardLoansContinueToAccrueFinanceChargesAndFees	P0Y5M27D
CY2017Q3	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	21618000	USD
	fbp	Percentage Of Dividend Received Deduction From Controlled Subsidiaries PercentageOfDividendReceivedDeductionFromControlledSubsidiaries	1	pure
CY2017Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	935231000	USD
CY2016Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10444000	USD
CY2017Q3	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	3209000	USD
	fbp	Impaired Loans Removed ImpairedLoansRemoved	3324000	USD
CY2017Q3	fbp	Reclassification Adjustment For Recovery On Securities Previously Impaired ReclassificationAdjustmentForRecoveryOnSecuritiesPreviouslyImpaired	0	USD
CY2016Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	118178000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	119109000	USD
	fbp	Effective Tax Rate Pretax Losses EffectiveTaxRatePretaxLosses	0.24	pure
CY2016Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	34518000	USD
CY2016Q4	us-gaap	Available For Sale Securities Pledged As Collateral AvailableForSaleSecuritiesPledgedAsCollateral	339390000	USD
	fbp	Impaired Financing Receivable Increases During Period ImpairedFinancingReceivableIncreasesDuringPeriod	2852000	USD
CY2016Q4	fbp	Preferred Stock Liquidation Value PreferredStockLiquidationValue	36104000	USD
CY2017Q3	fbp	Minimum Number Of Payments In Arrears To Consider Commercial Mortgage And Construction Loan As Past Due MinimumNumberOfPaymentsInArrearsToConsiderCommercialMortgageAndConstructionLoanAsPastDue	2
	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	124927000	USD
CY2017Q3	us-gaap	Deposits Deposits	8765891000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	5762000	USD
CY2017Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2015Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	118385000	USD
CY2017Q3	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Aggregate Write Downs ValuationAllowanceForImpairmentOfRecognizedServicingAssetsAggregateWriteDowns	690000	USD
	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	17206000	USD
CY2017Q3	fbp	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Liability Not Offset DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiabilityNotOffset	219000	USD
CY2017Q3	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	585795000	USD
CY2016Q4	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	7294000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-566815000	USD
CY2017Q3	us-gaap	Loans Receivable Net LoansReceivableNet	8673920000	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	0	USD
CY2016Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Liability DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability	200000000	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	33113000	USD
CY2016Q3	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Period Increase Decrease ValuationAllowanceForImpairmentOfRecognizedServicingAssetsPeriodIncreaseDecrease	-263000	USD
	fbp	Minimum Percentage Of Bank Net Taxable Income For Paying Income Tax At Normal Rate MinimumPercentageOfBankNetTaxableIncomeForPayingIncomeTaxAtNormalRate	0.2	pure
CY2015Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	24282000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	158313000	USD
CY2016Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Provision For Loan Losses1 CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesProvisionForLoanLosses1	0	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	5293000	USD
	fbp	Impaired Financing Receivable Paid Or Partial Payments ImpairedFinancingReceivablePaidOrPartialPayments	51998000	USD
	fbp	Financing Receivable Modifications New Troubled Debt Restructurings FinancingReceivableModificationsNewTroubledDebtRestructurings	83368000	USD
CY2016Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	753000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	20186000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	4217000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	2007000	USD
CY2016Q3	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	3927000	USD
CY2016Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	931856000	USD
	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	6166000	USD
CY2016Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	670000000	USD
CY2016Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Outstanding Balance CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance	207300000	USD
CY2016Q3	fbp	Other Than Temporary Impairment Non Credit Losses Reductions Securities Sold OtherThanTemporaryImpairmentNonCreditLossesReductionsSecuritiesSold	0	USD
CY2016Q3	us-gaap	Net Income Loss NetIncomeLoss	24074000	USD
	fbp	Derivatives Instruments And Hedging Activities Loss Gain DerivativesInstrumentsAndHedgingActivitiesLossGain	272000	USD
CY2016Q3	fbp	Impaired Financing Receivable Determined During Period ImpairedFinancingReceivableDeterminedDuringPeriod	26613000	USD
CY2015Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	661591000	USD
CY2017Q3	fbp	Financing Receivable Modifications Troubled Debt Restructurings Paid Or Partial Paid FinancingReceivableModificationsTroubledDebtRestructuringsPaidOrPartialPaid	7986000	USD
CY2017Q3	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	12771000	USD
CY2016Q3	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	2811000	USD
	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	7623000	USD
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CY2016Q4	us-gaap	Derivative Assets DerivativeAssets	554000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	6104000	USD
	dei	Trading Symbol TradingSymbol	fbp
CY2016Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	156190000	USD
	fbp	Other Than Temporary Impairment Non Credit Losses Reductions Securities Sold OtherThanTemporaryImpairmentNonCreditLossesReductionsSecuritiesSold	0	USD
	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	5777000	USD
	fbp	Securitization Of Mortgage Loans Into Mortgage Backed Securities SecuritizationOfMortgageLoansIntoMortgageBackedSecurities	200200000	USD
CY2017Q3	us-gaap	Securities Sold Under Agreements To Repurchase Gross SecuritiesSoldUnderAgreementsToRepurchaseGross	200000000	USD
	fbp	Principal Repayments PrincipalRepayments	3771000	USD
	fbp	Interest Expense Deposits No Broker Placement Fees InterestExpenseDepositsNoBrokerPlacementFees	49104000	USD
CY2016Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	59419000	USD
	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	8691000	USD
CY2017Q3	us-gaap	Professional Fees ProfessionalFees	12023000	USD
CY2016Q3	fbp	Financing Receivable Modifications New Troubled Debt Restructurings FinancingReceivableModificationsNewTroubledDebtRestructurings	15596000	USD
CY2017Q3	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Securities DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnSecurities	219000	USD
CY2016Q3	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	224000	USD
	fbp	Segment Reporting Information Average Earning Assets SegmentReportingInformationAverageEarningAssets	11631135000	USD
	fbp	All Other Fees AllOtherFees	-1000	USD
CY2017Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	221000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3325000	USD
CY2017Q3	fbp	Net Charge Credit For Transfer Of Funds NetChargeCreditForTransferOfFunds	0	USD
CY2015Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	22294000	USD
	fbp	Financing Receivable Modifications Troubled Debt Restructurings Paid Or Partial Paid FinancingReceivableModificationsTroubledDebtRestructuringsPaidOrPartialPaid	43719000	USD
CY2017Q3	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	27576000	USD
CY2017Q3	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	2333965000	USD
CY2016Q3	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	5788000	USD
CY2017Q3	fbp	Portion Of Other Than Temporary Impairment Losses Recognized In Other Comprehensive Income PortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncome	0	USD
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	4791000	USD
	fbp	Impaired Financing Receivable Increases During Period ImpairedFinancingReceivableIncreasesDuringPeriod	4454000	USD
CY2016Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-3833000	USD
CY2017Q3	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	2949000	USD
CY2017Q3	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	0	USD
CY2017Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-8398000	USD
CY2017Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications To Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsToNonaccretableDifference	0	USD
CY2016Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	300000000	USD
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	22248000	USD
CY2016Q1	fbp	Trust Preferred Securities Winning Bid TrustPreferredSecuritiesWinningBid	0.7	pure
CY2017Q3	fbp	Legal Surplus Amount LegalSurplusAmount	52436000	USD
CY2017Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	75013000	USD
CY2017Q3	us-gaap	Noninterest Expense NoninterestExpense	85614000	USD
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	1030000	USD
CY2016Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	11917000	USD
	fbp	Reclassification Adjustment For Recovery On Securities Previously Impaired ReclassificationAdjustmentForRecoveryOnSecuritiesPreviouslyImpaired	0	USD
CY2016Q4	us-gaap	Securities Purchased Under Agreements To Resell Gross SecuritiesPurchasedUnderAgreementsToResellGross	200000000	USD
CY2016Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.1
	fbp	Amortization Of Premiums And Discounts On Deferred Loan Fees And Costs AmortizationOfPremiumsAndDiscountsOnDeferredLoanFeesAndCosts	-6629000	USD
	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-19000	USD
	fbp	Purchased Credit Impaired Loans Foreclosures PurchasedCreditImpairedLoansForeclosures	1327000	USD
	fbp	All Other Fees AllOtherFees	-35000	USD
CY2016Q2	fbp	Interest Expense Accrued Trust Preferred Securities InterestExpenseAccruedTrustPreferredSecurities	31200000	USD
CY2016Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	26020000	USD
	fbp	Financing Receivable Modifications New Troubled Debt Restructurings FinancingReceivableModificationsNewTroubledDebtRestructurings	66075000	USD
CY2016Q3	fbp	Credit And Debit Processing Fees CreditAndDebitProcessingFees	3546000	USD
CY2017Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	3088000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	101467000	USD
	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Recoveries ValuationAllowanceForImpairmentOfRecognizedServicingAssetsRecoveries	73000	USD
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	34989	shares
	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	84100000	USD
CY2017Q3	fbp	Noninterest Income For Reportable Segments NoninterestIncomeForReportableSegments	18645000	USD
CY2017Q3	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	73
CY2016Q3	fbp	Portion Of Other Than Temporary Impairment Losses Recognized In Other Comprehensive Income PortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncome	0	USD
CY2016Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	881954000	USD
CY2016Q3	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Portion Attributable To Parent Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParentAvailableforsaleSecurities	0	USD
CY2016Q4	fbp	Fha Va Loans No Longer Accruing Interest FhaVaLoansNoLongerAccruingInterest	29300000	USD
CY2017Q3	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	7179693000	USD
	fbp	Amortization Of Broker Placement Fees AmortizationOfBrokerPlacementFees	1461000	USD
CY2016Q3	fbp	Impaired Loans Removed ImpairedLoansRemoved	2674000	USD
CY2016Q4	fbp	Carrying Value Of Other Equity Security CarryingValueOfOtherEquitySecurity	2200000	USD
CY2017Q3	fbp	Securities Weighted Average Yield SecuritiesWeightedAverageYield	0.022	pure
CY2017Q3	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	5797000	USD
CY2016Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	11922455000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	32109000	USD
CY2016Q3	fbp	Dividend Income From Federal Home Land Bank Stock DividendIncomeFromFederalHomeLandBankStock	400000	USD
	us-gaap	Impairment Of Investments ImpairmentOfInvestments	12231000	USD
CY2017Q3	us-gaap	Securities Sold Under Agreements To Repurchase Amount Offset Against Collateral SecuritiesSoldUnderAgreementsToRepurchaseAmountOffsetAgainstCollateral	0	USD
CY2016Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.11
CY2016Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	289591000	USD
CY2017Q3	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	2456403000	USD
CY2017Q3	us-gaap	Loans Receivable Commercial Development LoansReceivableCommercialDevelopment	29953000	USD
	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	4416000	USD
CY2016Q4	invest	Derivative Notional Amount DerivativeNotionalAmount	216020000	USD
	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	11184000	USD
CY2017Q3	fbp	Late Charges And Prepayment Penalties LateChargesAndPrepaymentPenalties	103000	USD
CY2016Q2	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	86372000	USD
	us-gaap	Noninterest Income NoninterestIncome	64393000	USD
CY2016Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	-477000	USD
CY2016Q3	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	10108000	USD
	fbp	Late Charges And Prepayment Penalties LateChargesAndPrepaymentPenalties	505000	USD
CY2017Q3	fbp	Business Combination Finite Lived Intangible Assets Net BusinessCombinationFiniteLivedIntangibleAssetsNet	3900000	USD
CY2016Q3	us-gaap	Contractually Specified Servicing Fees Late Fees And Ancillary Fees Earned In Exchange For Servicing Financial Assets ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets	2221000	USD
CY2016Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	106809000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	0	USD
CY2016Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	7839101000	USD
	us-gaap	Professional Fees ProfessionalFees	32775000	USD
CY2017Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	12173648000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-13944000	USD
CY2016Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	7414000	USD
CY2017Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	2656000	USD
CY2016Q3	us-gaap	Servicing Asset At Amortized Value Amortization1 ServicingAssetAtAmortizedValueAmortization1	817000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	420513000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment Not Credit Loss Net Of Tax Debt Securities AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentNotCreditLossNetOfTaxDebtSecurities	22372000	USD
CY2016Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	28981000	USD
CY2016	us-gaap	Fair Value Inputs Loss Severity FairValueInputsLossSeverity	0.04	pure
CY2017Q3	us-gaap	Principal Amount Outstanding On Loans Securitized PrincipalAmountOutstandingOnLoansSecuritized	1600000000	USD
CY2017Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	147995000	USD
CY2017Q3	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	4100000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	3072000	USD
CY2017Q3	fbp	Guarantor Obligation Carrying Value GuarantorObligationCarryingValue	17600000	USD
	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	2800000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	28100000	USD
CY2016Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	1444146	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	3.57
CY2016Q4	fbp	Defaulted Loans Collateralizing Securities DefaultedLoansCollateralizingSecurities	43700000	USD
CY2016Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	122179000	USD
CY2017Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	1444146	shares
CY2016Q3	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	3169000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	3205000	USD
	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications To Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsToNonaccretableDifference	-9610000	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	371000	USD
CY2017Q3	fbp	Period Of Residential Mortgage Loan That Are No Longer Accruing Interest PeriodOfResidentialMortgageLoanThatAreNoLongerAccruingInterest	P1Y3M0D
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	205603000	USD
CY2016Q3	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	6096000	USD
CY2016Q2	fbp	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmount	169690000	USD
CY2017Q3	us-gaap	Interest Bearing Domestic Deposit Checking InterestBearingDomesticDepositChecking	1134066000	USD
CY2017Q3	fbp	Callable Debt Securities Unamortized Premium CallableDebtSecuritiesUnamortizedPremium	100000	USD
CY2016Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	212927000	shares
CY2016Q4	us-gaap	Securities Sold Under Agreements To Repurchase Asset SecuritiesSoldUnderAgreementsToRepurchaseAsset	0	USD
CY2016Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	461000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	-387000	USD
CY2016Q3	fbp	Net Charge Credit For Transfer Of Funds NetChargeCreditForTransferOfFunds	0	USD
CY2017Q3	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	1464000	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	42934000	USD
CY2016Q4	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	2312928000	USD
CY2017Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	230870000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	24034000	USD
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	83368000	USD
	fbp	Net Charge Credit For Transfer Of Funds NetChargeCreditForTransferOfFunds	0	USD
	fbp	Derivatives Instruments And Hedging Activities Loss Gain DerivativesInstrumentsAndHedgingActivitiesLossGain	-19000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	7607000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	2.33
CY2016Q4	us-gaap	Federal Home Loan Bank Advances FederalHomeLoanBankAdvances	670000000	USD
CY2017Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	6108000	USD
CY2015Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	136000	USD
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	1147
CY2016Q3	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	0	USD
CY2016Q4	fbp	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Liability Not Offset DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiabilityNotOffset	554000	USD
CY2016Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	207262000	USD
	fbp	Adjustment To Servicing Assets For Loans Repurchased AdjustmentToServicingAssetsForLoansRepurchased	387000	USD
	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	-9127000	USD
	us-gaap	Occupancy Net OccupancyNet	41114000	USD
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	63542000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	23408000	USD
CY2017Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	4667000	USD
	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	7025000	USD
	fbp	Effective Income Tax Rate Excluding Discrete Items EffectiveIncomeTaxRateExcludingDiscreteItems	0.21	pure
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	34989	shares
CY2017Q3	us-gaap	Treasury Stock Value TreasuryStockValue	404000	USD
	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	11475000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	441338000	USD
	fbp	Late Charges And Prepayment Penalties LateChargesAndPrepaymentPenalties	340000	USD
CY2016Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Allowance For Loan Losses CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLosses	6857000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	48155000	USD
	fbp	Amortization Of Premiums And Discounts On Deferred Loan Fees And Costs AmortizationOfPremiumsAndDiscountsOnDeferredLoanFeesAndCosts	-6331000	USD
	fbp	Financing Receivable Removed From Troubled Debt Restructurings Classification FinancingReceivableRemovedFromTroubledDebtRestructuringsClassification	3031000	USD
CY2017Q3	fbp	Percentage Of Held To Maturity Securities PercentageOfHeldToMaturitySecurities	0.7	pure
CY2017Q2	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	197000	USD
	us-gaap	Net Income Loss NetIncomeLoss	42787000	USD
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	118551000	USD
	fbp	Proceeds From Loans Originated Or Purchased ProceedsFromLoansOriginatedOrPurchased	2092161000	USD
CY2017Q3	us-gaap	Interest Receivable InterestReceivable	49231000	USD
CY2016Q4	fbp	Commercial And Industrial Loans Including Financial Institutions CommercialAndIndustrialLoansIncludingFinancialInstitutions	2180455000	USD
	us-gaap	Proceeds From Sale And Collection Of Loans Heldforsale ProceedsFromSaleAndCollectionOfLoansHeldforsale	275855000	USD
CY2017Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	871708000	USD
CY2016Q3	fbp	Impaired Financing Receivable Paid Or Partial Payments ImpairedFinancingReceivablePaidOrPartialPayments	23668000	USD
CY2016Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	3651000	shares
	us-gaap	Interest Expense Federal Funds Purchased And Securities Sold Under Agreements To Repurchase InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	16868000	USD
CY2017Q3	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	915000000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	93061000	USD
	fbp	Financing Receivable Modifications Troubled Debt Restructurings Paid Or Partial Paid FinancingReceivableModificationsTroubledDebtRestructuringsPaidOrPartialPaid	41024000	USD
CY2016Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Securities DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnSecurities	554000	USD
CY2011Q1	fbp	Working Capital Line Of Credit To Fund Certain Expenses WorkingCapitalLineOfCreditToFundCertainExpenses	20000000	USD
CY2017Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-7033000	USD
CY2016Q4	fbp	Legal Surplus Amount LegalSurplusAmount	52436000	USD
CY2017Q2	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	40794000	USD
CY2016Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	1028945000	USD
CY2017Q3	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Gross DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross	200219000	USD
CY2016Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	7347050000	USD
CY2017Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	0	USD
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	49218000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	437509000	USD
CY2017Q3	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Cash DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnCash	0	USD
CY2016Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	96675000	USD
CY2017Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Allowance For Loan Losses CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLosses	9446000	USD
CY2016Q3	fbp	Insurance And Supervisory Fees InsuranceAndSupervisoryFees	5604000	USD
CY2017Q3	us-gaap	Other Assets OtherAssets	462861000	USD
	fbp	Sop Collections SopCollections	13327000	USD
CY2016Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	116462000	USD
	fbp	Consolidated Average Assets ConsolidatedAverageAssets	11915320000	USD
	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Period Increase Decrease ValuationAllowanceForImpairmentOfRecognizedServicingAssetsPeriodIncreaseDecrease	-387000	USD
CY2016Q2	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	953774000	USD
	us-gaap	Contractually Specified Servicing Fees Late Fees And Ancillary Fees Earned In Exchange For Servicing Financial Assets ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets	6287000	USD
CY2017Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1
CY2016Q3	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	0	USD
CY2016Q3	fbp	Adjustment To Servicing Assets For Loans Repurchased AdjustmentToServicingAssetsForLoansRepurchased	91000	USD
CY2017Q3	fbp	Other Than Temporary Impairment Non Credit Losses Reductions Securities Sold OtherThanTemporaryImpairmentNonCreditLossesReductionsSecuritiesSold	0	USD
	us-gaap	Depreciation Nonproduction DepreciationNonproduction	12263000	USD
CY2017Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	3591000	USD
CY2016Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	131017000	USD
	us-gaap	Servicing Asset At Amortized Value Amortization1 ServicingAssetAtAmortizedValueAmortization1	2342000	USD
CY2016Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	217446205	shares
CY2017Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	19771000	USD
	us-gaap	Noninterest Income NoninterestIncome	47437000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-358930000	USD
	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	16068000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	0	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	2404223	shares
CY2016Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	132759000	USD
CY2016Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Cash DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnCash	0	USD
CY2017Q3	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	219000	USD
CY2017Q3	us-gaap	Treasury Stock Shares TreasuryStockShares	4045023	shares
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.19
	fbp	Consolidated Average Assets ConsolidatedAverageAssets	12558867000	USD
CY2017Q3	fbp	Minimum Credit Score MinimumCreditScore	700
CY2016Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	22004000	shares
CY2017Q3	fbp	Loans And Lease Receivables Not Impaired Carrying Amount LoansAndLeaseReceivablesNotImpairedCarryingAmount	7940161000	USD
CY2016Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	143573000	USD
CY2017Q3	fbp	Accretion Of Premium From Acquisitions AccretionOfPremiumFromAcquisitions	9000	USD
CY2017Q3	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	3126000	USD
CY2017Q3	fbp	Other Expense Not Allocated OtherExpenseNotAllocated	26272000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	USD
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	9717000	USD
	us-gaap	Valuation Allowances And Reserves Recoveries ValuationAllowancesAndReservesRecoveries	14467000	USD
	us-gaap	Servicing Fees Net ServicingFeesNet	3200000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	23690000	USD
CY2017Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	298229000	USD
	fbp	Impaired Financing Receivable Determined During Period ImpairedFinancingReceivableDeterminedDuringPeriod	261544000	USD
CY2017Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	6963000	USD
CY2016Q4	us-gaap	Securities Sold Under Agreements To Repurchase Collateral Right To Reclaim Cash SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimCash	0	USD
CY2017Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Provision For Loan Losses1 CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesProvisionForLoanLosses1	789000	USD
CY2017Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-11421000	USD
CY2017Q3	fbp	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmount	157794000	USD
CY2017Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	130125000	USD
	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Provisions ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisions	621000	USD
CY2017Q3	us-gaap	Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Impact Of20 Percent Adverse Change In Prepayment Speed SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf20PercentAdverseChangeInPrepaymentSpeed	1500000	USD
	fbp	Purchased Credit Impaired Loans Foreclosures PurchasedCreditImpairedLoansForeclosures	2874000	USD
CY2016Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	10094000	USD
CY2017Q3	us-gaap	Derivative Assets DerivativeAssets	294000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	219780000	USD
CY2017Q3	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	109551000	USD
CY2017Q3	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	1293000	USD
CY2017Q3	us-gaap	Securities Purchased Under Agreements To Resell Liability SecuritiesPurchasedUnderAgreementsToResellLiability	200000000	USD
	fbp	Financing Receivable Modifications Increases To Existing Troubled Debt Restructurings FinancingReceivableModificationsIncreasesToExistingTroubledDebtRestructurings	3404000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	806509000	USD
	fbp	Proceeds From Loans Originated Or Purchased ProceedsFromLoansOriginatedOrPurchased	2085444000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	40780000	USD
CY2016Q3	fbp	Impaired Financing Receivable Increases During Period ImpairedFinancingReceivableIncreasesDuringPeriod	1091000	USD
	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	26976000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-4503000	USD
CY2017Q3	us-gaap	Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Weighted Average Life1 ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueWeightedAverageLife1	P8Y5M19D
CY2017Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	214187000	shares
	fbp	Transfer Of Impaired Loans Held For Sale To Portfolio Loans TransferOfImpairedLoansHeldForSaleToPortfolioLoans	0	USD
CY2016Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	2800000	USD
CY2017Q2	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	568543000	USD
	fbp	Payments To Acquire Insurance Contracts PaymentsToAcquireInsuranceContracts	960000	USD
CY2017Q3	fbp	Segment Reporting Information Average Earning Assets SegmentReportingInformationAverageEarningAssets	11083964000	USD
CY2016Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	137681000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	779259000	USD
	us-gaap	Fair Value Inputs Discount Rate FairValueInputsDiscountRate	0.142	pure
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	6
CY2017Q3	us-gaap	Valuation Allowances And Reserves Recoveries ValuationAllowancesAndReservesRecoveries	1741000	USD
CY2016Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	821683000	USD
CY2017Q3	fbp	Percentage Of Weighted Average Yield With Third Party PercentageOfWeightedAverageYieldWithThirdParty	0.0238	pure
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-223515000	USD
CY2017Q3	fbp	Threshold Mortgage Loans Principal Amount Puerto Rico Housing Financing Authority ThresholdMortgageLoansPrincipalAmountPuertoRicoHousingFinancingAuthority	75000000	USD
CY2016Q3	fbp	Noninterest Income For Reportable Segments NoninterestIncomeForReportableSegments	26146000	USD
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.32
CY2017Q3	us-gaap	Servicing Fees Net ServicingFeesNet	666000	USD
CY2015Q2	fbp	Puerto Rico Housing Finance Authority Restricted Net Position PuertoRicoHousingFinanceAuthorityRestrictedNetPosition	77400000	USD
CY2017Q3	fbp	Interest Expense Deposits No Broker Placement Fees InterestExpenseDepositsNoBrokerPlacementFees	16453000	USD
CY2016Q3	fbp	Financing Receivable Allowance For Credit Losses Net Write Offs Impaired Loans FinancingReceivableAllowanceForCreditLossesNetWriteOffsImpairedLoans	30309000	USD
	dei	Document Period End Date DocumentPeriodEndDate	2017-09-30
CY2017Q3	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	230870000	USD
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2577000	shares
CY2016Q3	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Aggregate Write Downs ValuationAllowanceForImpairmentOfRecognizedServicingAssetsAggregateWriteDowns	266000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1283000	USD
CY2016Q4	us-gaap	Interest Receivable InterestReceivable	45453000	USD
CY2016	fbp	Period During Which Credit Card Loans Continue To Accrue Finance Charges And Fees PeriodDuringWhichCreditCardLoansContinueToAccrueFinanceChargesAndFees	P0Y5M27D
CY2017Q3	fbp	Commercial And Industrial Loans Including Financial Institutions CommercialAndIndustrialLoansIncludingFinancialInstitutions	2144236000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	6642000	USD
	us-gaap	Servicing Fees Net ServicingFeesNet	3476000	USD
CY2017Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	2000000000	shares
	fbp	Credit And Debit Processing Fees CreditAndDebitProcessingFees	10102000	USD
CY2016	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	175499000	USD
	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Provision For Loan Losses1 CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesProvisionForLoanLosses1	3378000	USD
	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	10289000	USD
CY2017Q3	fbp	Impaired Loans Sold ImpairedLoansSold	0	USD
CY2017Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-19150000	USD
CY2017Q2	fbp	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmount	160368000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	299512000	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Period Increase Decrease OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsPeriodIncreaseDecrease	6687000	USD
CY2017Q3	fbp	Impaired Financing Receivable Paid Or Partial Payments ImpairedFinancingReceivablePaidOrPartialPayments	18794000	USD
CY2017Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	2066000	USD
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2322000	shares
CY2017Q3	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-35000	USD
	fbp	Accretion Of Premium From Acquisitions AccretionOfPremiumFromAcquisitions	181000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	10275000	USD
CY2017Q3	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group Mortgage LoansReceivableHeldForSaleNetNotPartOfDisposalGroupMortgage	19286000	USD
CY2017Q3	fbp	Impaired Financing Receivable Determined During Period ImpairedFinancingReceivableDeterminedDuringPeriod	71884000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	8886873000	USD
CY2016	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	748842000	USD
	us-gaap	Contractually Specified Servicing Fees Late Fees And Ancillary Fees Earned In Exchange For Servicing Financial Assets ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets	6589000	USD
CY2015Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Allowance For Loan Losses CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLosses	3962000	USD
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	213812000	shares
CY2016Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	46566000	USD
CY2016Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	USD
CY2017Q3	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	887000	USD
CY2017Q3	us-gaap	Common Stock Value CommonStockValue	22022000	USD
CY2016Q4	us-gaap	Loans Receivable Net LoansReceivableNet	8731276000	USD
	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	2757000	USD
CY2017Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	19369000	USD
CY2016Q4	us-gaap	Loans Receivable Commercial Mortgage LoansReceivableCommercialMortgage	1568808000	USD
CY2016Q3	fbp	Reclassification Adjustment For Recovery On Securities Previously Impaired ReclassificationAdjustmentForRecoveryOnSecuritiesPreviouslyImpaired	0	USD
CY2016Q3	fbp	Foreclosures Of Troubled Debt Restructurings ForeclosuresOfTroubledDebtRestructurings	5567000	USD
CY2017Q3	us-gaap	Liabilities Liabilities	10319897000	USD
CY2016Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	726288000	USD
CY2017Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	0	shares
CY2015Q2	fbp	Puerto Rico Housing Finance Authority Covered Loans PuertoRicoHousingFinanceAuthorityCoveredLoans	552000000	USD
CY2016Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	0	USD
CY2016Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	1254189	shares
CY2016Q4	us-gaap	Deposits Deposits	8831205000	USD
CY2017Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	47819000	USD
CY2017Q3	us-gaap	Securities Purchased Under Agreements To Resell Amount Offset Against Collateral SecuritiesPurchasedUnderAgreementsToResellAmountOffsetAgainstCollateral	0	USD
CY2016Q3	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	15596000	USD
CY2017Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount Net CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet	147559000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	USD
CY2017Q3	fbp	Financing Receivable Removed From Troubled Debt Restructurings Classification FinancingReceivableRemovedFromTroubledDebtRestructuringsClassification	0	USD
	us-gaap	Real Estate Acquisitions Through Foreclosures RealEstateAcquisitionsThroughForeclosures	46648000	USD
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	43093000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	114190000	USD
	fbp	Segment Reporting Information Average Non Earning Assets SegmentReportingInformationAverageNonEarningAssets	927732000	USD
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	2.58
	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	15899000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	43302000	USD
	fbp	Net Charge Credit For Transfer Of Funds NetChargeCreditForTransferOfFunds	0	USD
CY2017Q3	us-gaap	Interest Expense Federal Funds Purchased And Securities Sold Under Agreements To Repurchase InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	2917000	USD
	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	5930000	USD
CY2017Q3	us-gaap	Stockholders Equity StockholdersEquity	1853751000	USD
	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	8177000	USD
CY2017Q3	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Recoveries ValuationAllowanceForImpairmentOfRecognizedServicingAssetsRecoveries	0	USD
	fbp	Mortgage Loans Foreclosure Delinquency Threshold MortgageLoansForeclosureDelinquencyThreshold	P0Y3M28D
CY2017Q3	fbp	Impaired Loans Removed ImpairedLoansRemoved	542000	USD
CY2016Q3	fbp	Financing Receivable Modifications Increases To Existing Troubled Debt Restructurings FinancingReceivableModificationsIncreasesToExistingTroubledDebtRestructurings	517000	USD
CY2016Q3	fbp	Interest Expense Deposits No Broker Placement Fees InterestExpenseDepositsNoBrokerPlacementFees	16130000	USD
CY2016	fbp	Loans Considered To Be Defaulted If Borrower Has Failed To Make Payment For Period Or More Than Period LoansConsideredToBeDefaultedIfBorrowerHasFailedToMakePaymentForPeriodOrMoreThanPeriod	P0Y2M29D
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-34390000	USD
	us-gaap	Interest Expense InterestExpense	71312000	USD
	fbp	Net Loss On Real Estate Owned Operations NetLossOnRealEstateOwnedOperations	8796000	USD
CY2016Q3	us-gaap	Professional Fees ProfessionalFees	10672000	USD
CY2016Q2	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	670991000	USD
CY2017Q3	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	156800000	USD
CY2017Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	75013000	USD
CY2016Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	20752000	USD
CY2015Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	27297000	USD
	us-gaap	Insurance Investment Income InsuranceInvestmentIncome	6819000	USD
CY2016Q3	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
	us-gaap	Financing Receivable Significant Purchases FinancingReceivableSignificantPurchases	48900000	USD
CY2016Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Gross DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross	200554000	USD
CY2016Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	234454000	USD
	us-gaap	Schedule Of Repurchase Agreements ScheduleOfRepurchaseAgreements	<div><table style='border-collapse:collapse;' ><tr style='height:12.75pt;' ><td colspan='7' rowspan='1' style='width:530.25pt;text-align:left;vertical-align:bottom;border-color:Black;min-width:530.25pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' > Securities sold under agreements to repurchase (repurchase agreements) consist of the following:</font></td></tr><tr style='height:9pt;' ><td style='width:21pt;text-align:left;vertical-align:bottom;border-color:Black;min-width:21pt;' ><font style='font-family:Arial;font-size:10pt;color:#000000;' ></font></td><td style='width:285pt;text-align:left;vertical-align:bottom;border-color:Black;min-width:285pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td><td colspan='2' rowspan='1' style='width:106.5pt;text-align:center;vertical-align:bottom;border-color:Black;min-width:106.5pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' ></font></td><td style='width:15pt;text-align:left;vertical-align:bottom;border-color:Black;min-width:15pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' ></font></td><td colspan='2' rowspan='1' style='width:102.75pt;text-align:center;vertical-align:bottom;border-color:Black;min-width:102.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' ></font></td></tr><tr style='height:11.25pt;' ><td colspan='2' rowspan='1' style='width:306pt;text-align:left;vertical-align:middle;border-color:Black;min-width:306pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td><td colspan='2' rowspan='1' style='width:106.5pt;border-bottom-style:solid;border-bottom-width:2;text-align:center;vertical-align:bottom;border-color:Black;min-width:106.5pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >September 30, 2017</font></td><td style='width:15pt;text-align:left;vertical-align:bottom;border-color:Black;min-width:15pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' ></font></td><td colspan='2' rowspan='1' style='width:102.75pt;border-bottom-style:solid;border-bottom-width:2;text-align:center;vertical-align:bottom;border-color:Black;min-width:102.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >December 31, 2016</font></td></tr><tr style='height:12.75pt;' ><td colspan='2' rowspan='1' style='width:306pt;text-align:left;vertical-align:middle;border-color:Black;min-width:306pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >(Dollars in thousands)</font></td><td style='width:9pt;text-align:left;vertical-align:middle;border-color:Black;min-width:9pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td><td style='width:97.5pt;text-align:left;vertical-align:middle;border-color:Black;min-width:97.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td><td style='width:15pt;text-align:left;vertical-align:middle;border-color:Black;min-width:15pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td><td style='width:9pt;text-align:left;vertical-align:middle;border-color:Black;min-width:9pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td><td style='width:93.75pt;text-align:left;vertical-align:middle;border-color:Black;min-width:93.75pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td></tr><tr style='height:11.25pt;' ><td colspan='2' rowspan='1' style='width:306pt;text-align:left;vertical-align:middle;background-color:#CCEEFF;border-color:Black;min-width:306pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >Repurchase agreements, interest ranging from 1.96% to 3.26% </font></td><td style='width:9pt;text-align:left;vertical-align:middle;background-color:#CCEEFF;border-color:Black;min-width:9pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td><td style='width:97.5pt;text-align:left;vertical-align:middle;background-color:#CCEEFF;border-color:Black;min-width:97.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td><td style='width:15pt;text-align:left;vertical-align:middle;background-color:#CCEEFF;border-color:Black;min-width:15pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td><td style='width:9pt;text-align:left;vertical-align:middle;background-color:#CCEEFF;border-color:Black;min-width:9pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td><td style='width:93.75pt;text-align:left;vertical-align:middle;background-color:#CCEEFF;border-color:Black;min-width:93.75pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td></tr><tr style='height:11.25pt;' ><td colspan='2' rowspan='1' style='width:306pt;text-align:left;vertical-align:middle;background-color:#CCEEFF;border-color:Black;min-width:306pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' > (December 31, 2016 - 1.96% to 2.83%) </font><sup><font style='font-family:Times New Roman;font-size:8pt;color:#000000;' >(1)(2)</font></sup></td><td style='width:9pt;text-align:center;vertical-align:middle;background-color:#CCEEFF;border-color:Black;min-width:9pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >$</font></td><td style='width:97.5pt;text-align:right;vertical-align:middle;background-color:#CCEEFF;border-color:Black;min-width:97.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >300,000</font></td><td style='width:15pt;text-align:left;vertical-align:middle;background-color:#CCEEFF;border-color:Black;min-width:15pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td><td style='width:9pt;text-align:center;vertical-align:middle;background-color:#CCEEFF;border-color:Black;min-width:9pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >$</font></td><td style='width:93.75pt;text-align:right;vertical-align:middle;background-color:#CCEEFF;border-color:Black;min-width:93.75pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >300,000</font></td></tr><tr style='height:4.5pt;' ><td style='width:21pt;text-align:left;vertical-align:middle;border-color:Black;min-width:21pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td><td style='width:285pt;text-align:left;vertical-align:middle;border-color:Black;min-width:285pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td><td style='width:9pt;text-align:center;vertical-align:middle;border-color:Black;min-width:9pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td><td style='width:97.5pt;text-align:left;vertical-align:middle;border-color:Black;min-width:97.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td><td style='width:15pt;text-align:left;vertical-align:middle;border-color:Black;min-width:15pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td><td style='width:9pt;text-align:center;vertical-align:middle;border-color:Black;min-width:9pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td><td style='width:93.75pt;text-align:left;vertical-align:middle;border-color:Black;min-width:93.75pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td></tr><tr style='height:23.25pt;' ><td style='width:21pt;text-align:right;vertical-align:top;border-color:Black;min-width:21pt;' ><font style='font-family:Times New Roman;font-size:8pt;color:#000000;' >(1)</font></td><td colspan='6' rowspan='1' style='width:509.25pt;text-align:left;vertical-align:top;border-color:Black;min-width:509.25pt;' ><font style='font-family:Times New Roman;font-size:8pt;color:#000000;' >Reported net of securities purchased under agreements to repurchase (reverse repurchase agreements) by counterparty, when applicable, pursuant to ASC 210-20-45-11.</font></td></tr><tr style='height:24pt;' ><td style='width:21pt;text-align:right;vertical-align:top;border-color:Black;min-width:21pt;' ><font style='font-family:Times New Roman;font-size:8pt;color:#000000;' >(2)</font></td><td colspan='6' rowspan='1' style='width:509.25pt;text-align:left;vertical-align:top;border-color:Black;min-width:509.25pt;' ><font style='font-family:Times New Roman;font-size:8pt;color:#000000;' >As of September 30, 2017, includes $200 million with an average rate of 2.11% that lenders have the right to call before their contractual maturities at various dates beginning on July 19, 2017. In addition, $100 million is tied to variable rates. </font></td></tr><tr style='height:9pt;' ><td style='width:21pt;text-align:left;vertical-align:bottom;border-color:Black;min-width:21pt;' ><font style='font-family:Arial;font-size:10pt;color:#000000;' ></font></td><td style='width:285pt;text-align:left;vertical-align:middle;border-color:Black;min-width:285pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td><td style='width:9pt;text-align:left;vertical-align:middle;border-color:Black;min-width:9pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td><td style='width:97.5pt;text-align:left;vertical-align:middle;border-color:Black;min-width:97.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td><td style='width:15pt;text-align:left;vertical-align:middle;border-color:Black;min-width:15pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td><td style='width:9pt;text-align:left;vertical-align:middle;border-color:Black;min-width:9pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td><td style='width:93.75pt;text-align:left;vertical-align:middle;border-color:Black;min-width:93.75pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' ></font></td></tr></table></div>
CY2017Q3	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	0	USD
CY2017Q3	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	219000	USD
	fbp	Financing Receivable Allowance For Credit Losses Net Write Offs Impaired Loans FinancingReceivableAllowanceForCreditLossesNetWriteOffsImpairedLoans	49910000	USD
	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	17390000	USD
CY2017Q3	us-gaap	Assets Assets	12173648000	USD
	fbp	Noncash Loan Securitizations NoncashLoanSecuritizations	200236000	USD
CY2016Q3	us-gaap	Occupancy Net OccupancyNet	13888000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Impaired Nonperforming Nonaccrual Of Interest LoansAndLeasesReceivableImpairedNonperformingNonaccrualOfInterest	560094000	USD
CY2017Q3	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	3117000	USD
	us-gaap	Stock Issued During Period Shares Restricted Stock Award Gross StockIssuedDuringPeriodSharesRestrictedStockAwardGross	1091692	shares
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	200133000	USD
CY2017Q3	fbp	Financing Receivable Modifications Increases To Existing Troubled Debt Restructurings FinancingReceivableModificationsIncreasesToExistingTroubledDebtRestructurings	2650000	USD
CY2016Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	6096000	USD
	us-gaap	Net Income Loss NetIncomeLoss	69371000	USD
CY2017Q3	us-gaap	Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment Not Credit Loss Net Of Tax Debt Securities AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentNotCreditLossNetOfTaxDebtSecurities	5990000	USD
CY2016Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	218700394	shares
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.05
CY2017Q3	fbp	Federal Home Loan Bank Capital Stock Par Value FederalHomeLoanBankCapitalStockParValue	100
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	-10752000	USD
CY2017Q3	fbp	Other Than Temporary Impairment Losses Subsequent Unrealized Gain On Debt Securities OtherThanTemporaryImpairmentLossesSubsequentUnrealizedGainOnDebtSecurities	647000	USD
CY2017Q3	us-gaap	Occupancy Net OccupancyNet	13745000	USD
CY2016Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	2875000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	363054000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	369285000	USD
	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	272000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	5423000	USD
CY2017Q3	fbp	Secondary Offering Of Common Stock SecondaryOfferingOfCommonStock	20000000	shares
	fbp	Noninterest Income For Reportable Segments NoninterestIncomeForReportableSegments	47437000	USD
	fbp	Foreclosures Of Impaired Loans ForeclosuresOfImpairedLoans	36347000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	32299000	USD
	fbp	Direct Non Interest Expenses DirectNonInterestExpenses	185283000	USD
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	138
CY2016Q3	us-gaap	Deposits Deposits	8765891000	USD
	fbp	Financing Receivable Allowance For Credit Losses Write Offs Impaired Loans FinancingReceivableAllowanceForCreditLossesWriteOffsImpairedLoans	50027000	USD
CY2016Q3	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1586198000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3669000	USD
CY2016Q4	us-gaap	Securities Purchased Under Agreements To Resell Amount Offset Against Collateral SecuritiesPurchasedUnderAgreementsToResellAmountOffsetAgainstCollateral	0	USD
CY2016Q4	us-gaap	Held To Maturity Securities Pledged As Collateral HeldToMaturitySecuritiesPledgedAsCollateral	0	USD
CY2017Q3	fbp	Carrying Value Of Other Equity Security CarryingValueOfOtherEquitySecurity	2200000	USD
CY2017Q3	fbp	Payment To Be Made On Pro Rata Basis PaymentToBeMadeOnProRataBasis	0.65	pure
	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	53245000	USD
	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	40065000	USD
CY2017Q3	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	12109000	USD
CY2016Q3	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	0	USD
	fbp	Provsion For Loan Losses Expensed Impaired Loans ProvsionForLoanLossesExpensedImpairedLoans	50014000	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	6687000	USD
CY2016Q4	us-gaap	Securities Purchased Under Agreements To Resell Liability SecuritiesPurchasedUnderAgreementsToResellLiability	200000000	USD
CY2017Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	1754000	USD
CY2016Q4	us-gaap	Liabilities Liabilities	10136212000	USD
CY2016Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	1908557000	USD
	us-gaap	Fair Value Inputs Prepayment Rate FairValueInputsPrepaymentRate	0.165	pure
	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Portion Attributable To Parent Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParentAvailableforsaleSecurities	0	USD
	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	5244000	USD
CY2017Q3	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	299800000	USD
	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y2M12D
	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	151
CY2015Q2	us-gaap	Conversion Of Stock Shares Issued1 ConversionOfStockSharesIssued1	852831	shares
	us-gaap	Valuation Allowances And Reserves Recoveries ValuationAllowancesAndReservesRecoveries	11285000	USD
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	398732000	USD
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.33
CY2017Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	12653000	USD
CY2017Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	2851000	USD
CY2016Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	38005000	USD
	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Aggregate Write Downs ValuationAllowanceForImpairmentOfRecognizedServicingAssetsAggregateWriteDowns	1047000	USD
CY2017Q3	us-gaap	Cash And Due From Banks CashAndDueFromBanks	726779000	USD
CY2016Q3	us-gaap	Insurance Investment Income InsuranceInvestmentIncome	1363000	USD
CY2017Q3	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	208639000	USD
	fbp	Other Than Temporary Impairment Losses Subsequent Unrealized Gain On Debt Securities OtherThanTemporaryImpairmentLossesSubsequentUnrealizedGainOnDebtSecurities	-773000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	3.3
CY2016Q3	fbp	Segment Reporting Information Average Earning Assets SegmentReportingInformationAverageEarningAssets	11354259000	USD
CY2017Q3	us-gaap	Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Impact Of20 Percent Adverse Change In Discount Rate SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf20PercentAdverseChangeInDiscountRate	2653000	USD
CY2016	fbp	Period Of Residential Mortgage Loan That Are No Longer Accruing Interest PeriodOfResidentialMortgageLoanThatAreNoLongerAccruingInterest	P1Y3M0D
CY2017Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-10910000	USD
CY2017Q3	fbp	Commitments To Extent Credit CommitmentsToExtentCredit	1100000000	USD
CY2017Q3	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	25
	fbp	Provsion For Loan Losses Expensed Impaired Loans ProvsionForLoanLossesExpensedImpairedLoans	70011000	USD
CY2017Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	216208829	shares
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	43124000	USD
CY2016Q2	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	260000	USD
CY2016	us-gaap	Fair Value Inputs Prepayment Rate FairValueInputsPrepaymentRate	0.138	pure
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-4926000	USD
CY2017Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	22004000	shares
CY2016Q3	fbp	Other Than Temporary Impairment Losses Subsequent Unrealized Gain On Debt Securities OtherThanTemporaryImpairmentLossesSubsequentUnrealizedGainOnDebtSecurities	-2228000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	66267000	USD
CY2017Q3	us-gaap	Other Liabilities OtherLiabilities	130367000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	1375300000	USD
CY2016Q3	fbp	Consolidated Average Assets ConsolidatedAverageAssets	12280302000	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Portion Attributable To Parent Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParentAvailableforsaleSecurities	4842000	USD
CY2017Q3	fbp	Transfers From Loansto Other Receivable TransfersFromLoanstoOtherReceivable	22600000	USD
CY2017Q3	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Period Increase Decrease ValuationAllowanceForImpairmentOfRecognizedServicingAssetsPeriodIncreaseDecrease	-690000	USD
	fbp	Financing Receivable Removed From Troubled Debt Restructurings Classification FinancingReceivableRemovedFromTroubledDebtRestructuringsClassification	0	USD
CY2016Q3	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	5445000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	1050356	shares
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-18094000	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities Portion Recognized In Earnings Net Qualitative Disclosures Default Rate OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecuritiesPortionRecognizedInEarningsNetQualitativeDisclosuresDefaultRate	1	pure
CY2016Q4	us-gaap	Common Stock Value CommonStockValue	21870000	USD
CY2016Q3	fbp	Financing Receivable Removed From Troubled Debt Restructurings Classification FinancingReceivableRemovedFromTroubledDebtRestructuringsClassification	0	USD
CY2016Q3	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Provisions ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisions	0	USD
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-27865000	USD
	fbp	Impaired Loans Removed ImpairedLoansRemoved	27560000	USD
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	255102	shares
CY2017Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	214187000	shares
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	113841000	USD
	fbp	Accretion Of Premium From Acquisitions AccretionOfPremiumFromAcquisitions	47000	USD
	us-gaap	Interest Paid InterestPaid	68869000	USD
CY2016Q4	us-gaap	Securities Purchased Under Agreements To Resell Collateral Obligation To Return Cash SecuritiesPurchasedUnderAgreementsToResellCollateralObligationToReturnCash	0	USD
CY2017Q3	fbp	Percentage Of Debt Securities Government And Government Sponsored Agencies PercentageOfDebtSecuritiesGovernmentAndGovernmentSponsoredAgencies	0.99	pure
	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	257997000	USD
	us-gaap	Proceeds From Principal Repayments On Loans And Leases Held For Investment ProceedsFromPrincipalRepaymentsOnLoansAndLeasesHeldForInvestment	2174933000	USD
	fbp	Property Plant And Equipment Transferred To Other Assets PropertyPlantAndEquipmentTransferredToOtherAssets	0	USD
CY2017Q3	us-gaap	Servicing Asset At Amortized Value Amortization1 ServicingAssetAtAmortizedValueAmortization1	775000	USD
CY2016Q4	fbp	Other Investment Securities Available For Sale OtherInvestmentSecuritiesAvailableForSale	1542530000	USD
CY2016Q4	us-gaap	Securities Owned Not Readily Marketable SecuritiesOwnedNotReadilyMarketable	42992000	USD
CY2016Q4	us-gaap	Preferred Stock Value PreferredStockValue	36104000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	250734000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	8239000	USD
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	215259000	shares
CY2017Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	134593000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	752458000	USD
	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	5319000	USD
CY2016Q3	fbp	Provsion For Loan Losses Expensed Impaired Loans ProvsionForLoanLossesExpensedImpairedLoans	16619000	USD
	dei	Document Type DocumentType	10-Q
CY2016Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	64421000	USD
CY2016Q3	fbp	Principal Repayments PrincipalRepayments	1065000	USD
CY2016Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	2518496000	USD
	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	2557000	USD
CY2016Q3	fbp	Late Charges And Prepayment Penalties LateChargesAndPrepaymentPenalties	200000	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Period Increase Decrease OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsPeriodIncreaseDecrease	12231000	USD
CY2017Q3	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	346
	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	12231000	USD
	fbp	Portion Of Other Than Temporary Impairment Losses Recognized In Other Comprehensive Income PortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncome	-4842000	USD
CY2017Q3	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	10415000	USD
CY2016Q3	fbp	Amortization Of Broker Placement Fees AmortizationOfBrokerPlacementFees	655000	USD
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2017
	fbp	Principal Repayments PrincipalRepayments	5075000	USD
	fbp	Foreclosures Of Impaired Loans ForeclosuresOfImpairedLoans	28466000	USD
CY2017Q3	fbp	Financing Receivable Related General Allowance FinancingReceivableRelatedGeneralAllowance	172480000	USD
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	212682000	shares
	us-gaap	Noninterest Expense NoninterestExpense	270844000	USD
CY2017Q3	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	0	USD
CY2017Q3	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	829221000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Cash Basis Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeCashBasisMethod	527000	USD
CY2017Q3	fbp	Adjustment To Servicing Assets For Loans Repurchased AdjustmentToServicingAssetsForLoansRepurchased	129000	USD
CY2017Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	0
CY2016Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Amount Offset Against Collateral DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral	0	USD
CY2017Q3	us-gaap	Contractually Specified Servicing Fees Late Fees And Ancillary Fees Earned In Exchange For Servicing Financial Assets ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets	2130000	USD
CY2017Q3	us-gaap	Interest Expense Deposits InterestExpenseDeposits	16898000	USD
	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications To Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsToNonaccretableDifference	1970000	USD
CY2017Q3	fbp	Preferred Stock Liquidation Value PreferredStockLiquidationValue	36104000	USD
CY2016Q4	fbp	Securities Purchased Under Agreements To Resell Not Offset SecuritiesPurchasedUnderAgreementsToResellNotOffset	0	USD
CY2016	us-gaap	Fair Value Inputs Discount Rate FairValueInputsDiscountRate	0.141	pure
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	146000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	440597000	USD
	fbp	Loans Considered To Be Defaulted If Borrower Has Failed To Make Payment For Period Or More Than Period LoansConsideredToBeDefaultedIfBorrowerHasFailedToMakePaymentForPeriodOrMoreThanPeriod	P0Y2M29D
CY2016Q3	fbp	Financing Receivable Allowance For Credit Losses Write Offs Impaired Loans FinancingReceivableAllowanceForCreditLossesWriteOffsImpairedLoans	30426000	USD
	us-gaap	Noninterest Expense NoninterestExpense	262565000	USD
	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	371000	USD
	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Recoveries ValuationAllowanceForImpairmentOfRecognizedServicingAssetsRecoveries	0	USD
CY2017Q3	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	152977000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	194638000	USD
	fbp	Segment Reporting Information Average Non Earning Assets SegmentReportingInformationAverageNonEarningAssets	896071000	USD
	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	0	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	53208000	USD
CY2017Q3	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Portion Attributable To Parent Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParentAvailableforsaleSecurities	0	USD
	us-gaap	Occupancy Net OccupancyNet	41592000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	2500000	USD
CY2017Q3	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	0	USD
CY2017Q3	fbp	Reserve For Unfunded Loan Commitments ReserveForUnfundedLoanCommitments	900000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	15926000	USD
	fbp	Financing Receivable Allowance For Credit Losses Write Offs Impaired Loans FinancingReceivableAllowanceForCreditLossesWriteOffsImpairedLoans	66959000	USD
	fbp	Insurance And Supervisory Fees InsuranceAndSupervisoryFees	14117000	USD
CY2017Q3	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	USD
	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	3006000	USD
CY2017Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0
	fbp	Other Expense Not Allocated OtherExpenseNotAllocated	77282000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	5563000	USD
	fbp	Amortization Of Broker Placement Fees AmortizationOfBrokerPlacementFees	2300000	USD
	fbp	Property Plant And Equipment Transferred To Other Assets PropertyPlantAndEquipmentTransferredToOtherAssets	1185000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	112888000	USD
CY2017Q3	fbp	Other Held To Maturity Securities OtherHeldToMaturitySecurities	150627000	USD
CY2017Q3	fbp	Direct Non Interest Expenses DirectNonInterestExpenses	59342000	USD
	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	3452000	USD
	us-gaap	Depreciation Nonproduction DepreciationNonproduction	13359000	USD
CY2016Q3	fbp	Financing Receivable Modifications Troubled Debt Restructurings Paid Or Partial Paid FinancingReceivableModificationsTroubledDebtRestructuringsPaidOrPartialPaid	19774000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	710000	USD
CY2017Q3	us-gaap	Interest Expense InterestExpense	25163000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	101480000	USD
	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	4774000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	9604000	USD
CY2016Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group Mortgage LoansReceivableHeldForSaleNetNotPartOfDisposalGroupMortgage	41927000	USD
CY2017Q3	us-gaap	Loans Receivable Commercial Mortgage LoansReceivableCommercialMortgage	1601638000	USD
CY2017Q3	us-gaap	Goodwill Goodwill	28100000	USD
	fbp	Legal Surplus Reserve Rate LegalSurplusReserveRate	0.1	pure
CY2016Q4	fbp	Transfers From Loansto Other Receivable TransfersFromLoanstoOtherReceivable	15000000	USD
CY2016Q3	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	1420000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	1331998000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	8681270000	USD
CY2016Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1484155000	USD
CY2017Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Allowance For Loan Losses CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLosses	10235000	USD
CY2016Q3	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	662000	USD
CY2017Q3	fbp	Provsion For Loan Losses Expensed Impaired Loans ProvsionForLoanLossesExpensedImpairedLoans	13819000	USD
CY2017Q1	fbp	Purchase Of Common Stock Secondary Offering PurchaseOfCommonStockSecondaryOffering	3000000	shares
CY2017Q2	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	26502000	USD
	us-gaap	Contractually Specified Servicing Fees Amount ContractuallySpecifiedServicingFeesAmount	5657000	USD
CY2017Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	144247000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	3719000	USD
CY2016Q4	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	554000	USD
CY2016Q4	us-gaap	Securities Sold Under Agreements To Repurchase Amount Offset Against Collateral SecuritiesSoldUnderAgreementsToRepurchaseAmountOffsetAgainstCollateral	0	USD
CY2015Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	52581000	USD
CY2016Q4	fbp	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmount	165818000	USD
	dei	Amendment Flag AmendmentFlag	false
CY2016Q4	us-gaap	Securities Borrowed Amount Offset Against Collateral SecuritiesBorrowedAmountOffsetAgainstCollateral	200000000	USD
CY2016Q4	us-gaap	Securities Sold Under Agreements To Repurchase Collateral Right To Reclaim Securities SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimSecurities	0	USD
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	22118000	USD
CY2016Q3	us-gaap	Interest Expense Deposits InterestExpenseDeposits	16742000	USD
	fbp	Other Than Temporary Impairment Non Credit Losses Reductions Securities Sold OtherThanTemporaryImpairmentNonCreditLossesReductionsSecuritiesSold	5678000	USD
CY2017Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	173485000	USD
CY2016Q3	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	11894000	USD
CY2016Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	161617000	USD
CY2017Q3	fbp	Troubled Debt Restructurings Loans Sold TroubledDebtRestructuringsLoansSold	0	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	42738000	USD
CY2017Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	220220026	shares
CY2017Q3	us-gaap	Securities Sold Under Agreements To Repurchase Asset SecuritiesSoldUnderAgreementsToRepurchaseAsset	0	USD
	fbp	Original Amount Contributed In Percentage OriginalAmountContributedInPercentage	0.2	pure
CY2016Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount Net CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet	158961000	USD
	us-gaap	Real Estate Acquisitions Through Foreclosures RealEstateAcquisitionsThroughForeclosures	37606000	USD
CY2017Q3	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	4000000	USD
	us-gaap	Proceeds From Sale Of Other Productive Assets ProceedsFromSaleOfOtherProductiveAssets	2040000	USD
CY2016Q3	us-gaap	Interest Expense InterestExpense	25395000	USD
CY2017Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	20339000	USD
CY2017Q3	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	669000	USD
CY2017Q3	fbp	Commercian Loans Collaterized By Real Estate CommercianLoansCollaterizedByRealEstate	884000000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	860000	USD
CY2016Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications To Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsToNonaccretableDifference	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	1339000	USD
	fbp	Effective Tax Rate Pretax Losses EffectiveTaxRatePretaxLosses	0.2	pure
CY2016Q3	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Recoveries ValuationAllowanceForImpairmentOfRecognizedServicingAssetsRecoveries	3000	USD
CY2016Q4	fbp	Commercian Loans Collaterized By Real Estate CommercianLoansCollaterizedByRealEstate	853900000	USD
CY2017Q3	fbp	Other Investment Securities Available For Sale OtherInvestmentSecuritiesAvailableForSale	1401748000	USD
	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	354006000	USD
CY2017Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	2.76
CY2017Q3	fbp	Dividend Income From Federal Home Land Bank Stock DividendIncomeFromFederalHomeLandBankStock	500000	USD
CY2016Q4	us-gaap	Securities Purchased Under Agreements To Resell Collateral Obligation To Return Securities SecuritiesPurchasedUnderAgreementsToResellCollateralObligationToReturnSecurities	0	USD
CY2017Q3	fbp	Balance Of Amortization With Third Party BalanceOfAmortizationWithThirdParty	23600000	USD
CY2017Q3	us-gaap	Available For Sale Securities Pledged As Collateral AvailableForSaleSecuritiesPledgedAsCollateral	348724000	USD
CY2016Q3	us-gaap	Cash And Due From Banks CashAndDueFromBanks	518835000	USD
CY2017Q3	us-gaap	Available For Sale Securities AvailableForSaleSecurities	1750472000	USD
CY2017Q3	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	29101000	USD
	fbp	Segment Reporting Information Average Earning Assets SegmentReportingInformationAverageEarningAssets	11019249000	USD
CY2017Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	1077000	USD
	fbp	Other Than Temporary Impairment Losses Subsequent Unrealized Gain On Debt Securities OtherThanTemporaryImpairmentLossesSubsequentUnrealizedGainOnDebtSecurities	-1156000	USD
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0
CY2017Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	833777000	USD
CY2017Q3	us-gaap	Securities Purchased Under Agreements To Resell Gross SecuritiesPurchasedUnderAgreementsToResellGross	200000000	USD
	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	2504000	USD
CY2017Q3	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	2139000	USD
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	1733
CY2017Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	2658000	USD
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	51223000	USD
CY2017Q3	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	29543000	USD
	us-gaap	Proceeds From Sale Of Other Productive Assets ProceedsFromSaleOfOtherProductiveAssets	2265000	USD
	us-gaap	Interest Expense Federal Funds Purchased And Securities Sold Under Agreements To Repurchase InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	8305000	USD
CY2016Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Cash Basis Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeCashBasisMethod	1490000	USD
CY2017Q3	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	1603000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	23480000	USD
CY2017Q3	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	7289000	USD
CY2017Q3	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	186900000	USD
CY2017Q3	us-gaap	Securities Purchased Under Agreements To Resell Collateral Obligation To Return Securities SecuritiesPurchasedUnderAgreementsToResellCollateralObligationToReturnSecurities	0	USD
CY2016Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	830928000	USD
CY2016Q3	fbp	Purchased Credit Impaired Loans Foreclosures PurchasedCreditImpairedLoansForeclosures	240000	USD
CY2015Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	240710000	USD
CY2017Q3	fbp	Sop Collections SopCollections	4225000	USD
CY2017Q3	fbp	Foreclosures Of Troubled Debt Restructurings ForeclosuresOfTroubledDebtRestructurings	3564000	USD
CY2017Q3	fbp	Net Loss On Real Estate Owned Operations NetLossOnRealEstateOwnedOperations	1351000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1878000	USD
	fbp	Foreclosures Of Troubled Debt Restructurings ForeclosuresOfTroubledDebtRestructurings	24085000	USD
CY2017Q3	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	300000000	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	12231000	USD
CY2016Q3	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	1816000	USD
CY2017Q3	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Period Increase Decrease OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsPeriodIncreaseDecrease	0	USD
CY2016Q3	fbp	Accretion Of Premium From Acquisitions AccretionOfPremiumFromAcquisitions	43000	USD
CY2017Q3	fbp	Defaulted Loans Collateralizing Securities DefaultedLoansCollateralizingSecurities	45100000	USD
	us-gaap	Impairment Of Investments ImpairmentOfInvestments	1845000	USD
CY2016Q4	fbp	Legal Surplus Amount Additions LegalSurplusAmountAdditions	9600000	USD
CY2016Q4	us-gaap	Other Liabilities OtherLiabilities	118820000	USD
CY2016Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	887905000	USD
	fbp	Adjustment To Servicing Assets For Loans Repurchased AdjustmentToServicingAssetsForLoansRepurchased	126000	USD
CY2017Q3	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	49900000	USD
CY2017Q3	fbp	Impaired Financing Receivable Increases During Period ImpairedFinancingReceivableIncreasesDuringPeriod	3215000	USD
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	386611	shares
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	0	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	13282000	USD
CY2016Q3	fbp	Direct Non Interest Expenses DirectNonInterestExpenses	63402000	USD
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.05
CY2016Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	40800000	USD
	dei	Entity Central Index Key EntityCentralIndexKey	0001057706
CY2017Q3	fbp	Financing Receivable Allowance For Credit Losses Write Offs Impaired Loans FinancingReceivableAllowanceForCreditLossesWriteOffsImpairedLoans	6472000	USD
CY2017Q3	us-gaap	Securities Sold Under Agreements To Repurchase Collateral Right To Reclaim Securities SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimSecurities	0	USD
	fbp	Interest Expense Deposits No Broker Placement Fees InterestExpenseDepositsNoBrokerPlacementFees	47804000	USD
	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Provisions ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisions	0	USD
CY2017Q3	fbp	Segment Reporting Information Average Non Earning Assets SegmentReportingInformationAverageNonEarningAssets	900334000	USD
	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	7794000	USD
	fbp	Impaired Loans Sold ImpairedLoansSold	53245000	USD
CY2016Q4	us-gaap	Securities Sold Under Agreements To Repurchase Gross SecuritiesSoldUnderAgreementsToRepurchaseGross	200000000	USD
CY2017Q3	fbp	Fha Va Loans No Longer Accruing Interest FhaVaLoansNoLongerAccruingInterest	28900000	USD
	fbp	Sop Collections SopCollections	13136000	USD
CY2016Q4	us-gaap	Assets Assets	11922455000	USD
	fbp	Noncash Loan Securitizations NoncashLoanSecuritizations	238599000	USD
CY2017Q3	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	3244000	USD
	fbp	Insurance And Supervisory Fees InsuranceAndSupervisoryFees	20013000	USD
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-7258000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	786775000	USD
CY2017Q3	fbp	Consolidated Average Assets ConsolidatedAverageAssets	11984298000	USD
CY2016Q3	fbp	Foreclosures Of Impaired Loans ForeclosuresOfImpairedLoans	11856000	USD
CY2016Q3	us-gaap	Valuation Allowances And Reserves Recoveries ValuationAllowancesAndReservesRecoveries	4679000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	299685000	USD
	us-gaap	Insurance Investment Income InsuranceInvestmentIncome	6174000	USD
CY2016Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	647048000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	69371000	USD
CY2017Q3	us-gaap	Securities Owned Not Readily Marketable SecuritiesOwnedNotReadilyMarketable	52119000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	945088000	USD
CY2016Q3	fbp	Sop Collections SopCollections	4184000	USD
	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	6104000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	118551000	USD
	us-gaap	Interest Paid InterestPaid	104031000	USD
	fbp	Proceeds From Repayments Of Federal Home Loan Bank Advances ProceedsFromRepaymentsOfFederalHomeLoanBankAdvances	100000000	USD
	fbp	Dividend Income From Federal Home Land Bank Stock DividendIncomeFromFederalHomeLandBankStock	1500000	USD
CY2017Q3	fbp	All Other Fees AllOtherFees	0	USD
CY2016Q3	us-gaap	Noninterest Income NoninterestIncome	26146000	USD
CY2017Q3	us-gaap	Loans And Leases Receivable Impaired Nonperforming Nonaccrual Of Interest LoansAndLeasesReceivableImpairedNonperformingNonaccrualOfInterest	473132000	USD
CY2017Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	122832000	USD
CY2017Q3	us-gaap	Securities Borrowed Amount Offset Against Collateral SecuritiesBorrowedAmountOffsetAgainstCollateral	200000000	USD
	us-gaap	Proceeds From Sale And Collection Of Loans Heldforsale ProceedsFromSaleAndCollectionOfLoansHeldforsale	355636000	USD
CY2016Q3	fbp	All Other Fees AllOtherFees	0	USD
CY2017Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	1815904	shares
CY2017Q3	us-gaap	Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Impact Of10 Percent Adverse Change In Prepayment Speed SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf10PercentAdverseChangeInPrepaymentSpeed	767000	USD
	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	5348000	USD
	fbp	Impaired Financing Receivable Determined During Period ImpairedFinancingReceivableDeterminedDuringPeriod	110488000	USD
CY2016Q3	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	5485000	USD
	fbp	Proceeds From Repayments Of Federal Home Loan Bank Advances ProceedsFromRepaymentsOfFederalHomeLoanBankAdvances	-245000000	USD
	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	15131000	USD
	dei	Entity Registrant Name EntityRegistrantName	FIRST BANCORP /PR/
CY2017Q3	us-gaap	Federal Home Loan Bank Advances FederalHomeLoanBankAdvances	915000000	USD
CY2017Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Outstanding Balance CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance	196400000	USD
CY2016Q3	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	15726000	USD
	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Provision For Loan Losses1 CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesProvisionForLoanLosses1	2895000	USD
CY2016Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	26244000	USD
	fbp	Financing Receivable Modifications Increases To Existing Troubled Debt Restructurings FinancingReceivableModificationsIncreasesToExistingTroubledDebtRestructurings	1573000	USD
	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	2183000	USD
CY2017Q3	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Liability DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability	200000000	USD
CY2017Q3	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	2077000	USD
	fbp	Other Expense Not Allocated OtherExpenseNotAllocated	73315000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Cash Basis Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeCashBasisMethod	183000	USD
	fbp	Impaired Loans Sold ImpairedLoansSold	0	USD
CY2016Q3	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	42
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	107751000	USD
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CY2017Q3	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	1753629000	USD
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CY2017Q3	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1586198000	USD
CY2016Q4	fbp	Securities Weighted Average Yield SecuritiesWeightedAverageYield	0.0214	pure
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	fbp	Troubled Debt Restructurings Loans Sold TroubledDebtRestructuringsLoansSold	-53245000	USD
CY2016Q4	us-gaap	Loans Receivable Commercial Development LoansReceivableCommercialDevelopment	31766000	USD
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CY2016Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.11
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CY2016Q4	us-gaap	Treasury Stock Value TreasuryStockValue	125000	USD
CY2017Q3	us-gaap	Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Prepayment Speed ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeed	0.0641	pure
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	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	1321000	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	554000	USD
CY2017Q3	us-gaap	Held To Maturity Securities Pledged As Collateral HeldToMaturitySecuritiesPledgedAsCollateral	0	USD
CY2017Q3	fbp	Securities Purchased Under Agreements To Resell Not Offset SecuritiesPurchasedUnderAgreementsToResellNotOffset	0	USD
CY2017Q3	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
CY2016Q3	us-gaap	Noninterest Expense NoninterestExpense	88303000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	657182000	USD
CY2017Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	6792000	USD
CY2017Q3	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	1255259000	USD
CY2016Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	216578000	shares
CY2016Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	16487000	USD
CY2017Q3	fbp	Fdic Maximum Insured Amount FdicMaximumInsuredAmount	250000	USD
	us-gaap	Servicing Asset At Amortized Value Amortization1 ServicingAssetAtAmortizedValueAmortization1	2424000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	5132000	USD
CY2017Q3	fbp	Credit And Debit Processing Fees CreditAndDebitProcessingFees	3737000	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	554000	USD
CY2017Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	106315000	USD
CY2015Q4	fbp	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmount	173913000	USD
CY2017Q3	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	833000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	224191000	USD
	fbp	Credit And Debit Processing Fees CreditAndDebitProcessingFees	10134000	USD
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.02	pure
	fbp	Net Loss On Real Estate Owned Operations NetLossOnRealEstateOwnedOperations	9134000	USD
CY2016Q3	fbp	Interest Income Impaired Loans InterestIncomeImpairedLoans	7200000	USD
CY2017Q3	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	29388000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-34754000	USD
CY2016Q3	fbp	Impaired Loans Sold ImpairedLoansSold	0	USD
CY2016Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	21503000	USD
CY2016Q3	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	523
CY2017Q3	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	150627000	USD
	fbp	Troubled Debt Restructurings Loans Sold TroubledDebtRestructuringsLoansSold	0	USD
CY2017Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	880000	USD
CY2011Q1	fbp	Maturity Period Of Loan Acquired MaturityPeriodOfLoanAcquired	P7Y0M0D
CY2016Q3	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	1711000	USD
CY2017Q3	us-gaap	Securities Purchased Under Agreements To Resell Collateral Obligation To Return Cash SecuritiesPurchasedUnderAgreementsToResellCollateralObligationToReturnCash	0	USD
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.19
CY2015Q2	fbp	Common Stock Issued In Exchange For Trust Preferred Securities Additional Paid In Capital Value CommonStockIssuedInExchangeForTrustPreferredSecuritiesAdditionalPaidInCapitalValue	5500000	USD
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	18900000	USD
CY2017Q3	invest	Derivative Notional Amount DerivativeNotionalAmount	203020000	USD
CY2017Q3	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	0	USD
	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	11579000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-7181000	USD
	fbp	Maximum Loan To Value Ratio MaximumLoanToValueRatio	0.8	pure
CY2017Q3	us-gaap	Noninterest Income NoninterestIncome	18645000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2176000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	150828000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	19153000	USD
CY2017Q3	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Amount Offset Against Collateral DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral	0	USD
CY2016Q3	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	1474000	USD
CY2017Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	737194000	USD
CY2017Q3	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	219000	USD
	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	689613000	USD
	fbp	Noninterest Income For Reportable Segments NoninterestIncomeForReportableSegments	64393000	USD
CY2016Q3	us-gaap	Stockholders Equity StockholdersEquity	1799886000	USD
CY2016Q3	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Period Increase Decrease OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsPeriodIncreaseDecrease	0	USD
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	18625000	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	34420000	USD
CY2017Q3	us-gaap	Preferred Stock Value PreferredStockValue	36104000	USD
	us-gaap	Proceeds From Principal Repayments On Loans And Leases Held For Investment ProceedsFromPrincipalRepaymentsOnLoansAndLeasesHeldForInvestment	1920088000	USD
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	138
CY2017Q3	us-gaap	Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Impact Of10 Percent Adverse Change In Discount Rate SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf10PercentAdverseChangeInDiscountRate	1383000	USD
	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Aggregate Write Downs ValuationAllowanceForImpairmentOfRecognizedServicingAssetsAggregateWriteDowns	460000	USD
CY2017Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	35606000	USD
CY2016Q3	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	1898000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	63542000	USD
CY2017Q3	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Provisions ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisions	0	USD
CY2016Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	5178000	USD
	us-gaap	Professional Fees ProfessionalFees	34779000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	205603000	USD
CY2017Q3	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	0	USD
CY2017Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	18761000	USD
CY2016Q3	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	0	USD
CY2016Q4	fbp	Reserve For Unfunded Loan Commitments ReserveForUnfundedLoanCommitments	1600000	USD
CY2017Q3	fbp	Purchased Credit Impaired Loans Foreclosures PurchasedCreditImpairedLoansForeclosures	1005000	USD
CY2016Q3	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	6400000	USD
CY2017Q3	fbp	Financing Receivable Allowance For Credit Losses Net Write Offs Impaired Loans FinancingReceivableAllowanceForCreditLossesNetWriteOffsImpairedLoans	6458000	USD
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
CY2016Q3	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	800000	USD
	fbp	Dividend Income From Federal Home Land Bank Stock DividendIncomeFromFederalHomeLandBankStock	1100000	USD
CY2012Q2	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	24500000	USD
CY2017Q3	fbp	Foreclosures Of Impaired Loans ForeclosuresOfImpairedLoans	5657000	USD
	fbp	Interest Income Impaired Loans InterestIncomeImpairedLoans	21700000	USD
CY2017Q3	us-gaap	Securities Sold Under Agreements To Repurchase Collateral Right To Reclaim Cash SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimCash	0	USD
CY2017Q3	fbp	Trust Preferred Securities Purchase Price TrustPreferredSecuritiesPurchasePrice	0.81	pure
	fbp	Impaired Financing Receivable Paid Or Partial Payments ImpairedFinancingReceivablePaidOrPartialPayments	63713000	USD
CY2016Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	21745000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	1391000	USD
	fbp	Financing Receivable Allowance For Credit Losses Net Write Offs Impaired Loans FinancingReceivableAllowanceForCreditLossesNetWriteOffsImpairedLoans	66280000	USD
CY2017Q3	fbp	Financing Receivable Modifications New Troubled Debt Restructurings FinancingReceivableModificationsNewTroubledDebtRestructurings	29101000	USD
	us-gaap	Contractually Specified Servicing Fees Amount ContractuallySpecifiedServicingFeesAmount	5897000	USD
CY2017Q3	us-gaap	Contractually Specified Servicing Fees Amount ContractuallySpecifiedServicingFeesAmount	1898000	USD
CY2016Q3	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	25475000	USD
CY2016Q3	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	523000	USD
CY2016Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	24478000	USD
	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	0	USD
	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	10332000	USD
CY2017Q1	fbp	Income Tax Benefit Change In Tax Status IncomeTaxBenefitChangeInTaxStatus	13200000	USD
	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	0	USD
	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	640000	USD
CY2017Q3	fbp	Allowance For Loan And Lease Losses Natural Disasters Methodology And Assumptions AllowanceForLoanAndLeaseLossesNaturalDisastersMethodologyAndAssumptions	As described in Note 2 – “Natural Disasters Affecting First BanCorp. in Third Quarter 2017” two strong hurricanes affected the Corporation’s service areas during September 2017. These storms caused widespread property damage, flooding, power outages, and water and communication services interruptions, and severely disrupted normal economic activity in the affected areas. Damages associated with the storm-related events will have significant short-term economic repercussions, both positive and negative, for the Corporation’ s commercial and individual loan customers in the most severely affected parts of Puerto Rico and the Virgin Islands. While these events have affected certain asset quality metrics, including higher delinquencies and non-performing loans, the storms’ ultimate effect on loan collections is uncertain. However, the Corporation’s loan officers are making individual storm-impact assessments for all commercial customers. The recent occurrence of the events makes it difficult to estimate the immediate impact at such level. The expectation is that the assessment will be substantially completed by the fourth quarter of 2017. The Corporation’s loan portfolio in Puerto Rico and the Virgin Islands totaled $7.3 billion as of September 30, 2017, or 82% of the entire portfolio. The composition of these loans generally reflects the composition of the entire portfolio, which is close to 60% of residential and consumer loans to individual customers and 40% of commercial and construction loans. Management has determined a separate qualitative element of the allowance to represent the estimate of inherent losses associated with the impact of the storm-related events on the Corporation’s Puerto Rico and Virgin Islands loan portfolios. This estimate is judgmental and subject to changes as conditions evolve. This qualitative element of the allowance was determined based on the estimated impact the storms could have on current employment levels (e.g unemployment rate that doubles current levels in Puerto Rico based on statistics observed in the aftermath of similar natural disasters in the U.S mainland like Hurricane Katrina) economic activity in the Corporation’s geographic regions, and the time it could take for the affected regions to return to a more normalized operating environment. It is expected that the rebuilding efforts will stimulate economic activity and accelerate the pace of economic recovery from the hurricanes. The Corporation’s credit risk modeling framework used to determine the storm-related estimate is similar to the one used for benchmarking purposes as part of the annual Dodd-Frank Act Stress Testing (“DFAST”) regulatory exercise. Models were developed following a regression modeling approach in which relationships between portfolio-level loss rates and key economic indicators were derived based on historical behavior. These models went through an extensive model specification and selection process that resulted in the use of certain variables, such as the unemployment rate and the Puerto Rico Economic Activity Index, which showed the highest predictive power of potential losses in our outstanding loan portfolio. Resulting loss factors were assigned to the overall performing balance of each major loan portfolio category in the affected regions, resulting in a total charge of $66.5 million (composed of $59.2 million for Puerto Rico and $7.3 million for Virgin Islands) that consisted of: (i) a $13.7 million charge to the provision for residential mortgage loans, (ii) an $18.1 million charge to the provision of commercial mortgage loans, (iii) an $8.0 million charge to the provision for commercial and industrial loans, (iv) a $0.8 million charge to the provision for construction loans, and (v) a $25.9 million charge to the provision for consumer loans. Residential and consumer loans are underwritten principally on income streams, with collateral viewed as a second source of repayment. The storms’ impact varies widely within the residential and consumer portfolio, with some individual borrowers experiencing the devastation of loss of both home and employment and others with both homes and jobs intact. Properties used as collateral generally require insurance, minimizing the potential loss from property damages. For the commercial portfolio, the Corporation conducted a preliminary review of all loans in the Puerto Rico and Virgin Islands regions in amounts over $10 million, which accounts for 74.5% of the total commercial portfolio of such regions, and determined that 100% of the real estate-backed loans have property insurance. As such, the Corporation understands that credit losses and/or credit deterioration will mainly occur from the overall economic effect the storms will have on the economy of Puerto Rico and the Virgin Islands. Estimates of the storms’ effect on loan losses will change over time as additional information becomes available, and any related revisions in the allowance calculation will be reflected in the provision for loan losses as they occur. Such revisions could be material.
CY2016Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	214070000	USD
CY2016Q3	fbp	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmount	168141000	USD
CY2016Q3	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	72682000	USD
CY2016Q3	fbp	Financing Receivable Related General Allowance FinancingReceivableRelatedGeneralAllowance	134531000	USD
CY2016Q3	fbp	Loans And Lease Receivables Not Impaired Carrying Amount LoansAndLeaseReceivablesNotImpairedCarryingAmount	7782659000	USD
CY2016Q3	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	912854000	USD
CY2016Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	8863654000	USD
CY2016Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	119304000	USD
CY2016Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount Net CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet	161284000	USD
CY2016Q3	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	656318000	USD
CY2016Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	528943000	USD
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.25	pure
CY2016Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Allowance For Loan Losses CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLosses	6857000	USD
	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	-100000000	USD
	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	0	USD
CY2016Q3	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	28981000	USD

Files In Submission

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2017 Q4 Form 10-Q Financial Statement

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Balance Sheet

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$FBP FIRST BANCORP /PR/ Stock $fbp

2017 Q4 Form 10-Q Financial Statement

#000105770617000023 Filed on November 09, 2017

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FBP
FIRST BANCORP /PR/ Stock $fbp