$BPOP
POPULAR, INC. Stock $bpop

$bpop Overview Financials Valuation SEC Filings Company Website

2017 Q4 Form 10-K Financial Statement

#000119312518066922 Filed on March 01, 2018

Income Statement

Concept	2017 Q4	2016 Q4	2015 Q4
Revenue
YoY Change
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$14.80M	$15.00M	$14.50M
YoY Change	-1.33%	3.45%	5.84%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense
YoY Change
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$79.90M	-$7.000M	$120.6M
YoY Change	-1241.43%	-105.8%	131.03%
Income Tax	$13.70M	-$1.800M	-$16.80M
% Of Pretax Income	17.15%		-13.93%
Net Earnings	-$102.2M	-$4.100M	$137.4M
YoY Change	2392.68%	-102.98%	181.56%
Net Earnings / Revenue
Basic Earnings Per Share
Diluted Earnings Per Share	-$1.005M	-$39.65K	$1.333M
COMMON SHARES
Basic Shares Outstanding		103.8M shares
Diluted Shares Outstanding

Balance Sheet

Concept	2017 Q4	2016 Q4	2015 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$412.6M	$374.2M	$378.9M
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	$547.1M	$544.0M	$502.6M
YoY Change	0.58%	8.23%	1.62%
Goodwill	$627.3M	$627.3M	$626.4M
YoY Change	0.0%	0.14%	34.51%
Intangibles	$35.67M	$45.05M	$58.11M
YoY Change	-20.82%	-22.47%	54.57%
Long-Term Investments	$215.3M	$218.1M	$212.8M
YoY Change	-1.24%	2.45%	-5.67%
Other Assets	$1.035B	$1.244B	$1.302B
YoY Change	-16.8%	-4.45%	60.15%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$44.28B	$38.66B	$35.76B
YoY Change	14.53%	8.11%	8.08%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$392.0M	$481.0M	$763.0M
YoY Change	-18.5%	-36.96%	-40.06%
Long-Term Debt Due	$255.0M	$155.0M
YoY Change	64.52%
Total Short-Term Liabilities	$255.0M	$155.0M	$763.0M
YoY Change	64.52%	-79.69%	-40.06%
LONG-TERM LIABILITIES
Long-Term Debt	$650.0M	$812.0M	$915.0M
YoY Change	-19.95%	-11.26%	0.55%
Other Long-Term Liabilities	$1.696B	$912.0M	$1.021B
YoY Change	85.96%	-10.68%	0.39%
Total Long-Term Liabilities	$2.346B	$1.724B	$1.936B
YoY Change	36.08%	-10.95%	0.47%
TOTAL LIABILITIES
Total Short-Term Liabilities	$255.0M	$155.0M	$763.0M
Total Long-Term Liabilities	$2.346B	$1.724B	$1.936B
Total Liabilities	$39.17B	$33.46B	$30.66B
YoY Change	17.06%	9.16%	6.34%
SHAREHOLDERS EQUITY
Retained Earnings	$1.195B	$1.220B	$1.088B
YoY Change	-2.07%	12.17%	328.81%
Common Stock	$1.042M	$1.040M	$1.038M
YoY Change	0.19%	0.19%	0.19%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$90.14M	$8.286M	$6.101M
YoY Change	987.88%	35.81%	48.19%
Treasury Stock Shares	2.169M shares	267.8K shares	197.2K shares
Shareholders Equity	$5.104B	$5.198B	$5.105B
YoY Change
Total Liabilities & Shareholders Equity	$44.28B	$38.66B	$35.76B
YoY Change	14.53%	8.11%	8.05%

Cashflow Statement

Concept	2017 Q4	2016 Q4	2015 Q4
OPERATING ACTIVITIES
Net Income	-$102.2M	-$4.100M	$137.4M
YoY Change	2392.68%	-102.98%	181.56%
Depreciation, Depletion And Amortization	$14.80M	$15.00M	$14.50M
YoY Change	-1.33%	3.45%	5.84%
Cash From Operating Activities	-$8.200M	$147.7M	$249.4M
YoY Change	-105.55%	-40.78%	347.76%
INVESTING ACTIVITIES
Capital Expenditures	-$22.50M	-$22.00M	-$21.60M
YoY Change	2.27%	1.85%	89.47%
Acquisitions
YoY Change
Other Investing Activities	-$1.136B	$44.90M	-$339.0M
YoY Change	-2630.73%	-113.24%	-717.49%
Cash From Investing Activities	-$1.159B	$22.90M	-$360.6M
YoY Change	-5160.26%	-106.35%	-928.97%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	1.053B	-158.7M	154.3M
YoY Change	-763.77%	-202.85%	-411.09%
NET CHANGE
Cash From Operating Activities	-8.200M	147.7M	249.4M
Cash From Investing Activities	-1.159B	22.90M	-360.6M
Cash From Financing Activities	1.053B	-158.7M	154.3M
Net Change In Cash	-113.6M	11.90M	43.10M
YoY Change	-1054.62%	-72.39%	-13.1%
FREE CASH FLOW
Cash From Operating Activities	-$8.200M	$147.7M	$249.4M
Capital Expenditures	-$22.50M	-$22.00M	-$21.60M
Free Cash Flow	$14.30M	$169.7M	$271.0M
YoY Change	-91.57%	-37.38%	303.87%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	635512000	USD
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	238339000	USD
CY2017Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	8490945000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesBeforeReclassificationAdjustmentsTax	-4831000	USD
CY2017	bpop	Proceeds From Issuance Of Stock ProceedsFromIssuanceOfStock	7016000	USD
CY2015	bpop	Accretion Of Fdic Indemnification Asset AccretionOfFDICIndemnificationAsset	20062000	USD
CY2015	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	737889000	USD
CY2015	bpop	Net Gain Loss On Sale And Valuation Adjustments On Investment Securities NetGainLossOnSaleAndValuationAdjustmentsOnInvestmentSecurities	141000	USD
CY2016Q4	bpop	Other Available For Sale Securities OtherAvailableForSaleSecurities	7717963000	USD
CY2016Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	170000000	shares
CY2017	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	-88505000	USD
CY2015	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-60378000	USD
CY2015	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	-225209000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	543981000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	22895172000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-22428000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	-1482000	USD
CY2017	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	36519000	USD
CY2016Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	38661609000	USD
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	0	USD
CY2017Q4	us-gaap	Trading Securities Pledged As Collateral TradingSecuritiesPledgedAsCollateral	625000	USD
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.02
CY2015	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	96760000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	28000	USD
CY2015	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	3629000	USD
CY2015	bpop	Net Payments For Repurchase Of Common Stock NetPaymentsForRepurchaseOfCommonStock	1021000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	103958000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	141000	USD
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	2023295000	USD
CY2017Q4	bpop	Other Available For Sale Securities OtherAvailableForSaleSecurities	9785104000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	895344000	USD
CY2017	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	535534000	USD
CY2015	bpop	Net Accretion Of Discounts Amortization Of Premiums And Deferred Fees NetAccretionOfDiscountsAmortizationOfPremiumsAndDeferredFees	73496000	USD
CY2015	bpop	Gain Loss On Sales Of Loans Net Including Mortgage Banking Activities GainLossOnSalesOfLoansNetIncludingMortgageBankingActivities	35013000	USD
CY2016Q4	us-gaap	Notes Payable NotesPayable	1574852000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax	26283000	USD
CY2017	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	2549000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	40463000	USD
CY2015	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	207338000	USD
CY2017	us-gaap	Heldtomaturity Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Loss HeldtomaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLoss	13356000	USD
CY2016Q4	us-gaap	Assets Assets	38661609000	USD
CY2017Q4	bpop	Unearned Income UnearnedIncome	130633000	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	868330000	USD
CY2015Q4	us-gaap	Stockholders Equity StockholdersEquity	5105324000	USD
CY2017	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	4139762000	USD
CY2015	us-gaap	Payments To Acquire Mortgage Servicing Rights Msr PaymentsToAcquireMortgageServicingRightsMSR	2400000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-5348736000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	0	USD
CY2016Q4	us-gaap	Preferred Stock Value PreferredStockValue	50160000	USD
CY2016Q4	bpop	Unearned Income UnearnedIncome	121425000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	107681000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-505000	USD
CY2017	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	0	USD
CY2015	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	40847000	USD
CY2017	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	325424000	USD
CY2017	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Aggregate Losses AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses	133085000	USD
CY2017Q4	us-gaap	Capital Leases Future Minimum Payments Receivable In Four Years CapitalLeasesFutureMinimumPaymentsReceivableInFourYears	173305000	USD
CY2017	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	12000	USD
CY2016Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	362394000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	-4702000	USD
CY2015	bpop	Transfers To Statutory Reserve TransfersToStatutoryReserve	0	USD
CY2015	us-gaap	Payments To Purchase Loans Held For Sale PaymentsToPurchaseLoansHeldForSale	401991000	USD
CY2015	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	14950000	USD
CY2016Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	8279363000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	5197957000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	4753687000	USD
CY2015	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	750000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Net Reported Amount Covered And Not Covered LoansAndLeasesReceivableNetReportedAmountCoveredAndNotCovered	22805974000	USD
CY2017	bpop	Net Gain Loss On Sale And Valuation Adjustments On Investment Securities NetGainLossOnSaleAndValuationAdjustmentsOnInvestmentSecurities	334000	USD
CY2016Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	2866580000	USD
CY2017	us-gaap	Derivatives Methods Of Accounting Hedging Derivatives DerivativesMethodsOfAccountingHedgingDerivatives	<div><p style='text-align:justify;margin-top:0pt;margin-bottom:6pt;line-height:12pt;' ><font style='font-family:Arial;font-size:8pt;margin-left:0pt;' >For a cash flow hedge, changes in the fair value of the derivative instrument, to the extent that it is effective, are recorded net of taxes in accumulated other co</font><font style='font-family:Arial;font-size:8pt;' >mprehensive income and subsequently reclassified to net income (loss) in the same period(s) that the hedged transaction impacts earnings. The ineffective portion of cash flow hedges is immediately recognized in current earnings. For free-standing derivativ</font><font style='font-family:Arial;font-size:8pt;' >e instruments, changes in fair values are reported in current period earnings.</font></p><p style='text-align:justify;margin-top:0pt;margin-bottom:6pt;line-height:12pt;' ><font style='font-family:Arial;font-size:8pt;margin-left:0pt;' >Prior to entering a hedge transaction, the Corporation formally documents the relationship between hedging instruments and hedged items, as well as the risk management objective</font><font style='font-family:Arial;font-size:8pt;' > and strategy for undertaking various hedge transactions. This process includes linking all derivative instruments to specific assets and liabilities on the statements of financial condition or to specific forecasted transactions or firm commitments along </font><font style='font-family:Arial;font-size:8pt;' >with a formal assessment, at both inception of the hedge and on an ongoing basis, as to the effectiveness of the derivative instrument in offsetting changes </font><font style='font-family:Arial;font-size:8pt;' >in fair values or </font><font style='font-family:Arial;font-size:8pt;' >cash flows of the hedged item. Hedge accounting is discontinued when the derivati</font><font style='font-family:Arial;font-size:8pt;' >ve instrument is not highly effective as a hedge, a derivative expires, is sold, terminated, when it is unlikely that a forecasted transaction will occur or when it is determined that it is no longer appropriate. When hedge accounting is discontinued the d</font><font style='font-family:Arial;font-size:8pt;' >erivative continues to be carried at fair value with changes in fair value included in earnings. </font></p><p style='text-align:justify;margin-top:0pt;margin-bottom:6pt;line-height:12pt;' ></p></div>
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	36439000	USD
CY2016Q4	us-gaap	Other Assets OtherAssets	2145510000	USD
CY2017Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	5255119000	USD
CY2017Q4	us-gaap	Preferred Stock Value PreferredStockValue	50160000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-20100000	USD
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	6232000	USD
CY2017	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-4281000	USD
CY2015	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-17421000	USD
CY2017	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	346000	USD
CY2015	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	3252000	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	41000000	USD
CY2017	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	-501618000	USD
CY2017	us-gaap	Heldtomaturity Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Loss HeldtomaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLoss	0	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount Covered LoansAndLeasesReceivableGrossCarryingAmountCovered	572878000	USD
CY2016Q4	us-gaap	Trading Securities Pledged As Collateral TradingSecuritiesPledgedAsCollateral	11486000	USD
CY2017Q4	us-gaap	Assets Assets	44277337000	USD
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	670135000	USD
CY2017Q4	bpop	Total Of Securities Purchased Under Agreement To Resell TotalOfSecuritiesPurchasedUnderAgreementToResell	0	USD
CY2016Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	98101000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	-1888000	USD
CY2017	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	4954105000	USD
CY2017	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-21715000	USD
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	9149954000	USD
CY2016Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	32164000	USD
CY2016Q4	us-gaap	Common Stock Value CommonStockValue	1040000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	-1482000	USD
CY2015	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	7904000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount Covered LoansAndLeasesReceivableGrossCarryingAmountCovered	517274000	USD
CY2016Q4	us-gaap	Deposits Deposits	30496224000	USD
CY2015	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	141145000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	6015737000	USD
CY2015	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	13329000	USD
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	4498383000	USD
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	170000000	shares
CY2017	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses	30555000	USD
CY2017Q4	us-gaap	Liabilities Liabilities	39173432000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	-1835000	USD
CY2015	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	124111000	USD
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-925895000	USD
CY2017Q4	bpop	Held To Maturity Securities Debt Maturities Average Yield HeldToMaturitySecuritiesDebtMaturitiesAverageYield	0.0337	pure
CY2016Q4	us-gaap	Capital Leases Net Investment In Direct Financing Leases Unguaranteed Residual Values Of Leased Property CapitalLeasesNetInvestmentInDirectFinancingLeasesUnguaranteedResidualValuesOfLeasedProperty	210761000	USD
CY2017	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	24448000	USD
CY2016Q4	us-gaap	Interest Receivable InterestReceivable	138042000	USD
CY2017Q4	us-gaap	Other Liabilities OtherLiabilities	1696439000	USD
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	4267382000	USD
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	325424000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	-3800000	USD
CY2017	bpop	Schedule Of Aggregate Amortized Cost And Fair Value Of Afs By Contractual Maturity Tabletextblock ScheduleOfAggregateAmortizedCostAndFairValueOfAfsByContractualMaturityTabletextblock	<div><table style='border-collapse:collapse;' ><tr style='height:15pt;' ><td style='width:254.25pt;border-bottom-style:solid;border-bottom-width:1;text-align:left;vertical-align:bottom;border-color:Black;min-width:254.25pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >(In thousands)</font></td><td style='width:55.5pt;border-bottom-style:solid;border-bottom-width:1;text-align:right;vertical-align:bottom;border-color:Black;min-width:55.5pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' ></font></td><td style='width:55.5pt;border-bottom-style:solid;border-bottom-width:1;text-align:right;vertical-align:bottom;border-color:Black;min-width:55.5pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >Amortized cost </font></td><td style='width:51.75pt;border-bottom-style:solid;border-bottom-width:1;text-align:right;vertical-align:bottom;border-color:Black;min-width:51.75pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' ></font></td><td style='width:51.75pt;border-bottom-style:solid;border-bottom-width:1;text-align:right;vertical-align:bottom;border-color:Black;min-width:51.75pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >Fair value</font></td></tr><tr style='height:15pt;' ><td style='width:254.25pt;border-top-style:solid;border-top-width:1;text-align:left;vertical-align:bottom;border-color:Black;min-width:254.25pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >Within 1 year</font></td><td style='width:55.5pt;border-top-style:solid;border-top-width:1;text-align:right;vertical-align:bottom;border-color:Black;min-width:55.5pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >$</font></td><td style='width:55.5pt;border-top-style:solid;border-top-width:1;text-align:right;vertical-align:bottom;border-color:Black;min-width:55.5pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >1,389,619</font></td><td style='width:51.75pt;border-top-style:solid;border-top-width:1;text-align:right;vertical-align:bottom;border-color:Black;min-width:51.75pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >$</font></td><td style='width:51.75pt;border-top-style:solid;border-top-width:1;text-align:right;vertical-align:bottom;border-color:Black;min-width:51.75pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >1,386,737</font></td></tr><tr style='height:15pt;' ><td style='width:254.25pt;text-align:left;vertical-align:bottom;border-color:Black;min-width:254.25pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >After 1 to 5 years</font></td><td style='width:55.5pt;text-align:right;vertical-align:bottom;border-color:Black;min-width:55.5pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' ></font></td><td style='width:55.5pt;text-align:right;vertical-align:bottom;border-color:Black;min-width:55.5pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >2,925,277</font></td><td style='width:51.75pt;text-align:right;vertical-align:bottom;border-color:Black;min-width:51.75pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' ></font></td><td style='width:51.75pt;text-align:right;vertical-align:bottom;border-color:Black;min-width:51.75pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >2,895,496</font></td></tr><tr style='height:15.75pt;' ><td style='width:254.25pt;text-align:left;vertical-align:bottom;border-color:Black;min-width:254.25pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >After 5 to 10 years</font></td><td style='width:55.5pt;text-align:right;vertical-align:bottom;border-color:Black;min-width:55.5pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' ></font></td><td style='width:55.5pt;text-align:right;vertical-align:bottom;border-color:Black;min-width:55.5pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >669,715</font></td><td style='width:51.75pt;text-align:right;vertical-align:bottom;border-color:Black;min-width:51.75pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' ></font></td><td style='width:51.75pt;text-align:right;vertical-align:bottom;border-color:Black;min-width:51.75pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >667,974</font></td></tr><tr style='height:15.75pt;' ><td style='width:254.25pt;border-bottom-style:solid;border-bottom-width:1;text-align:left;vertical-align:bottom;border-color:Black;min-width:254.25pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >After 10 years</font></td><td style='width:55.5pt;border-bottom-style:solid;border-bottom-width:1;text-align:right;vertical-align:bottom;border-color:Black;min-width:55.5pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' ></font></td><td style='width:55.5pt;border-bottom-style:solid;border-bottom-width:1;text-align:right;vertical-align:bottom;border-color:Black;min-width:55.5pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >5,299,936</font></td><td style='width:51.75pt;border-bottom-style:solid;border-bottom-width:1;text-align:right;vertical-align:bottom;border-color:Black;min-width:51.75pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' ></font></td><td style='width:51.75pt;border-bottom-style:solid;border-bottom-width:1;text-align:right;vertical-align:bottom;border-color:Black;min-width:51.75pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >5,226,716</font></td></tr><tr style='height:15pt;' ><td style='width:254.25pt;border-top-style:solid;border-top-width:1;text-align:left;vertical-align:bottom;border-color:Black;min-width:254.25pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >Total </font></td><td style='width:55.5pt;border-top-style:solid;border-top-width:1;text-align:right;vertical-align:bottom;border-color:Black;min-width:55.5pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' ></font></td><td style='width:55.5pt;border-top-style:solid;border-top-width:1;text-align:right;vertical-align:bottom;border-color:Black;min-width:55.5pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >10,284,547</font></td><td style='width:51.75pt;border-top-style:solid;border-top-width:1;text-align:right;vertical-align:bottom;border-color:Black;min-width:51.75pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' ></font></td><td style='width:51.75pt;border-top-style:solid;border-top-width:1;text-align:right;vertical-align:bottom;border-color:Black;min-width:51.75pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >10,176,923</font></td></tr><tr style='height:15pt;' ><td style='width:254.25pt;border-bottom-style:solid;border-bottom-width:1;text-align:left;vertical-align:bottom;border-color:Black;min-width:254.25pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >Equity securities</font></td><td style='width:55.5pt;border-bottom-style:solid;border-bottom-width:1;text-align:right;vertical-align:bottom;border-color:Black;min-width:55.5pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' ></font></td><td style='width:55.5pt;border-bottom-style:solid;border-bottom-width:1;text-align:right;vertical-align:bottom;border-color:Black;min-width:55.5pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >1,039</font></td><td style='width:51.75pt;border-bottom-style:solid;border-bottom-width:1;text-align:right;vertical-align:bottom;border-color:Black;min-width:51.75pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' ></font></td><td style='width:51.75pt;border-bottom-style:solid;border-bottom-width:1;text-align:right;vertical-align:bottom;border-color:Black;min-width:51.75pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >1,815</font></td></tr><tr style='height:15.75pt;' ><td style='width:254.25pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:2;text-align:left;vertical-align:bottom;border-color:Black;min-width:254.25pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >Total investment securities available-for-sale</font></td><td style='width:55.5pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:2;text-align:right;vertical-align:bottom;border-color:Black;min-width:55.5pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >$</font></td><td style='width:55.5pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:2;text-align:right;vertical-align:bottom;border-color:Black;min-width:55.5pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >10,285,586</font></td><td style='width:51.75pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:2;text-align:right;vertical-align:bottom;border-color:Black;min-width:51.75pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >$</font></td><td style='width:51.75pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:2;text-align:right;vertical-align:bottom;border-color:Black;min-width:51.75pt;' ><font style='font-family:Arial;font-size:7pt;color:#000000;' >10,178,738</font></td></tr></table></div>
CY2017Q4	us-gaap	Capital Leases Net Investment In Direct Financing Leases Unguaranteed Residual Values Of Leased Property CapitalLeasesNetInvestmentInDirectFinancingLeasesUnguaranteedResidualValuesOfLeasedProperty	246248000	USD
CY2016Q4	us-gaap	Securities Purchased Under Agreements To Resell SecuritiesPurchasedUnderAgreementsToResell	23637000	USD
CY2016Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	2006391	shares
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1194994000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	853000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-30891000	USD
CY2017	us-gaap	Payments To Acquire Mortgage Servicing Rights Msr PaymentsToAcquireMortgageServicingRightsMSR	0	USD
CY2015	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	528000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	207428000	USD
CY2015	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	431676000	USD
CY2016Q4	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	1200000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax	8465000	USD
CY2017	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-13100000	USD
CY2017	us-gaap	Payments Of Dividends PaymentsOfDividends	95910000	USD
CY2016Q4	bpop	Held To Maturity Securities Debt Maturities Average Yield HeldToMaturitySecuritiesDebtMaturitiesAverageYield	0.0346	pure
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	36439000	USD
CY2016Q4	bpop	Available For Sale Securities Weighted Average Yield AvailableForSaleSecuritiesWeightedAverageYield	0.0194	pure
CY2017Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	26962563000	USD
CY2017Q4	us-gaap	Capital Leases Future Minimum Payments Receivable Current CapitalLeasesFutureMinimumPaymentsReceivableCurrent	44986000	USD
CY2017	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses	102530000	USD
CY2016Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	8209806000	USD
CY2016	us-gaap	Heldtomaturity Securities Continuous Unrealized Loss Position Aggregate Loss HeldtomaturitySecuritiesContinuousUnrealizedLossPositionAggregateLoss	23897000	USD
CY2016Q4	bpop	Capital Leases Investment In Direct Financing Leases CapitalLeasesInvestmentInDirectFinancingLeases	703091000	USD
CY2016Q4	bpop	Trading Securities Not Pledged As Collateral TradingSecuritiesNotPledgedAsCollateral	48319000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	-736000	USD
CY2017	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	96540000	USD
CY2016Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	31785000	USD
CY2017Q4	us-gaap	Capital Leases Future Minimum Payments Receivable Due Thereafter CapitalLeasesFutureMinimumPaymentsReceivableDueThereafter	285365000	USD
CY2015Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	537111000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax	3301000	USD
CY2016Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	23515781000	USD
CY2017	bpop	Net Payments From To Fdic Under Loss Sharing Agreements NetPaymentsFromToFDICUnderLossSharingAgreements	-7679000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	373987000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Net Reported Amount Covered And Not Covered LoansAndLeasesReceivableNetReportedAmountCoveredAndNotCovered	24186642000	USD
CY2017Q4	us-gaap	Capital Leases Net Investment In Direct Financing Leases Initial Direct Costs CapitalLeasesNetInvestmentInDirectFinancingLeasesInitialDirectCosts	9496000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-320286000	USD
CY2016	us-gaap	Heldtomaturity Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Loss HeldtomaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLoss	1711000	USD
CY2016Q4	us-gaap	Capital Leases Net Investment In Direct Financing Leases CapitalLeasesNetInvestmentInDirectFinancingLeases	695414000	USD
CY2016Q4	us-gaap	Securities Sold Under Agreements To Repurchase Asset SecuritiesSoldUnderAgreementsToRepurchaseAsset	0	USD
CY2017Q4	us-gaap	Capital Leases Net Investment In Direct Financing Leases CapitalLeasesNetInvestmentInDirectFinancingLeases	798145000	USD
CY2017	bpop	Other Real Estate Owned Sales OtherRealEstateOwnedSales	87183000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax	10251000	USD
CY2017	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	95607000	USD
CY2016Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	2890217000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	623426000	USD
CY2016Q4	us-gaap	Treasury Stock Value TreasuryStockValue	8286000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	77315000	USD
CY2017Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	4298503000	USD
CY2017Q4	us-gaap	Capital Leases Net Investment In Direct Financing Leases Deferred Income CapitalLeasesNetInvestmentInDirectFinancingLeasesDeferredIncome	126797000	USD
CY2016Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	45050000	USD
CY2015Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	211405000	USD
CY2016Q4	us-gaap	Securities Sold Under Agreements To Repurchase Gross SecuritiesSoldUnderAgreementsToRepurchaseGross	479425000	USD
CY2017Q4	us-gaap	Related Party Transaction Due From To Related Party RelatedPartyTransactionDueFromToRelatedParty	182989000	USD
CY2015	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	47500000	USD
CY2015	bpop	Other Real Estate Owned Write Downs OtherRealEstateOwnedWriteDowns	46164000	USD
CY2017Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	1150663000	USD
CY2017Q4	us-gaap	Time Deposits Less Than100000 TimeDepositsLessThan100000	3446575000	USD
CY2015	us-gaap	Interest Paid InterestPaid	193503000	USD
CY2014Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	8465000	USD
CY2015	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-4376000	USD
CY2015	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	338447000	USD
CY2017Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Asset DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset	0	USD
CY2016Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Cash DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimCash	0	USD
CY2017	bpop	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustments	-40325000	USD
CY2017	bpop	Reduction Due To Loan Repurchases ReductionDueToLoanRepurchases	-2225000	USD
CY2017Q4	bpop	Debt Maturities Repayments Of Principal Thereafter DebtMaturitiesRepaymentsOfPrincipalThereafter	533126000	USD
CY2016Q4	us-gaap	Securities Sold Under Agreements To Repurchase Collateral Right To Reclaim Cash SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimCash	0	USD
CY2017	bpop	Related Party Transaction Other Changes RelatedPartyTransactionOtherChanges	51626000	USD
CY2017Q2	dei	Entity Public Float EntityPublicFloat	4195191800	USD
CY2017Q4	us-gaap	Treasury Stock Value TreasuryStockValue	90142000	USD
CY2017	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	-398676000	USD
CY2017	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	8694000	USD
CY2015	bpop	Net Payments From To Fdic Under Loss Sharing Agreements NetPaymentsFromToFDICUnderLossSharingAgreements	247976000	USD
CY2016Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2015	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-3098000	USD
CY2017Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	2006391	shares
CY2015	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesBeforeReclassificationAdjustmentsTax	-2569000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	62697000	USD
CY2015	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-100133000	USD
CY2017Q4	bpop	Average Reserve Required With Federal Reserve Bank AverageReserveRequiredWithFederalReserveBank	1400000000	USD
CY2017Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	10000	USD
CY2016Q4	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	600000000	USD
CY2017Q4	bpop	Securities Sold Under Agreements To Repurchase Offsetting SecuritiesSoldUnderAgreementsToRepurchaseOffsetting	390921000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-39956000	USD
CY2017	bpop	Recognition Of Mortgage Servicing Rights On Securitizations Or Asset Transfers RecognitionOfMortgageServicingRightsOnSecuritizationsOrAssetTransfers	7661000	USD
CY2017	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases	0	USD
CY2017	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersOutOfLevel3	0	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	23077000	USD
CY2017Q4	us-gaap	Interest Receivable InterestReceivable	213844000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	28279000	USD
CY2017	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	0	USD
CY2017	us-gaap	Heldtomaturity Securities Continuous Unrealized Loss Position Aggregate Loss HeldtomaturitySecuritiesContinuousUnrealizedLossPositionAggregateLoss	13356000	USD
CY2017	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	-18986000	USD
CY2016Q4	us-gaap	Transfers Of Financial Assets Accounted For As Sale Initial Fair Value Of Liabilities Incurred TransfersOfFinancialAssetsAccountedForAsSaleInitialFairValueOfLiabilitiesIncurred	0	USD
CY2016Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	6100000	USD
CY2015	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	241478000	USD
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	540651000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-8744000	USD
CY2017	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	95008000	USD
CY2016Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	63949000	USD
CY2015	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	2014315000	USD
CY2016Q4	us-gaap	Fair Value Of Securities Received As Collateral That Can Be Resold Or Repledged FairValueOfSecuritiesReceivedAsCollateralThatCanBeResoldOrRepledged	27388000	USD
CY2017Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	94000	USD
CY2017Q4	bpop	Capital Leases Investment In Direct Financing Leases CapitalLeasesInvestmentInDirectFinancingLeases	810145000	USD
CY2016Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	800000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	649107000	USD
CY2015	bpop	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustments	-29871000	USD
CY2015	bpop	Recoveries On Covered Assets Subject To Reimbursement To Fdic Mirror Accounting RecoveriesOnCoveredAssetsSubjectToReimbursementToFDICMirrorAccounting	-13836000	USD
CY2017	bpop	Extension Of Maturity Date ExtensionOfMaturityDate	125
CY2015	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	-3800000	USD
CY2017	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	527831000	USD
CY2015	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	17250000	USD
CY2016Q4	bpop	Deposits Savings Negotiable Order Of Withdrawal Now Money Market Account And Other Demand Deposits DepositsSavingsNegotiableOrderOfWithdrawalNOWMoneyMarketAccountAndOtherDemandDeposits	15806239000	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	12842000	USD
CY2016Q4	us-gaap	Equity Restrictions EquityRestrictions	513000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	267000	USD
CY2017Q4	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	122070000	USD
CY2017	us-gaap	Description Of Types Of Products And Services From Which Each Reportable Segment Derives Its Revenues DescriptionOfTypesOfProductsAndServicesFromWhichEachReportableSegmentDerivesItsRevenues	Banco Popular de Puerto Rico: Given that Banco Popular de Puerto Rico constitutes a significant portion of the Corporation’s results of operations and total assets at December 31, 2017, additional disclosures are provided for the business areas included in this reportable segment, as described below: Commercial banking represents the Corporation’s banking operations conducted at BPPR, which are targeted mainly to corporate, small and middle size businesses. It includes aspects of the lending and depository businesses, as well as other finance and advisory services. BPPR allocates funds across business areas based on duration matched transfer pricing at market rates. This area also incorporates income related with the investment of excess funds, as well as a proportionate share of the investment function of BPPR. Consumer and retail banking represents the branch banking operations of BPPR which focus on retail clients. It includes the consumer lending business operations of BPPR, as well as the lending operations of Popular Auto and Popular Mortgage. Popular Auto focuses on auto and lease financing, while Popular Mortgage focuses principally on residential mortgage loan originations. The consumer and retail banking area also incorporates income related with the investment of excess funds from the branch network, as well as a proportionate share of the investment function of BPPR. Other financial services include the trust and asset management service units of BPPR, the brokerage and investment banking operations of Popular Securities, and the insurance agency and reinsurance businesses of Popular Insurance, Popular Insurance V.I., Popular Risk Services, and Popular Life Re. Most of the services that are provided by these subsidiaries generate profits based on fee income. Banco Popular North America: Banco Popular North America’s reportable segment consists of the banking operations of BPNA, E-LOAN, Inc., Popular Equipment Finance, Inc. and Popular Insurance Agency, U.S.A. BPNA operates through a retail branch network in the U.S. mainland under the name of Popular Community Bank, while E-LOAN, Inc. supported BPNA’s deposit gathering through its online platform until March 31, 2017, when said operations were transferred to Popular Direct, a division of BPNA. During the third quarter of 2015, BPNA and E-LOAN Inc. completed an asset purchase and sale transaction in which E-LOAN, Inc. sold to BPNA all of its outstanding loan portfolio, including residential mortgage loans and home equity lines of credit, which had a carrying value of approximately $213 million. Prior to this transaction, the Corporation provided additional disclosures for the BPNA reportable segment related to E-LOAN Inc. After the close of the above mentioned asset purchase and sale transaction, additional disclosures with respect to E-LOAN Inc. are no longer considered relevant to the financial statements and accordingly are not presented. During 2017, the E-LOAN brand was transferred to BPPR and is being used to offer personal loans through an online platform. Popular Equipment Finance, Inc. also holds a running-off loan portfolio as this subsidiary ceased originating loans during 2009. Popular Insurance Agency, U.S.A. offers investment and insurance services across the BPNA branch network.
CY2015Q4	us-gaap	Derivative Credit Risk Valuation Adjustment Derivative Assets DerivativeCreditRiskValuationAdjustmentDerivativeAssets	800000	USD
CY2016Q4	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	6000000	USD
CY2017	bpop	Fed Funds Asset Sold Maximum Aggregate Balance Outstanding Month End FedFundsAssetSoldMaximumAggregateBalanceOutstandingMonthEnd	471083000	USD
CY2017Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned	405352000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-18025000	USD
CY2017Q4	invest	Derivative Notional Amount DerivativeNotionalAmount	493931000	USD
CY2015Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	120380000	USD
CY2017	bpop	Transfers Of Loans To Other Real Estate Owned TransfersOfLoansToOtherRealEstateOwned	82035000	USD
CY2017Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	168212000	USD
CY2015Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-35930000	USD
CY2017Q4	bpop	Deferred Tax Assets Depreciation DeferredTaxAssetsDepreciation	8383000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1035110000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	24423427000	USD
CY2017Q4	bpop	Trading Securities Not Pledged As Collateral TradingSecuritiesNotPledgedAsCollateral	42562000	USD
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	14992000	USD
CY2016Q4	us-gaap	Equity Method Investments EquityMethodInvestments	218062000	USD
CY2017Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	94000	USD
CY2017	us-gaap	Increase Decrease In Interest And Dividends Receivable IncreaseDecreaseInInterestAndDividendsReceivable	75802000	USD
CY2017	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	102136000	USD
CY2015	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.3
CY2016Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	267752	shares
CY2015	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	-13301000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Investment In Subsidiaries DeferredTaxAssetsInvestmentInSubsidiaries	13160000	USD
CY2015	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	891621000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	34083000	USD
CY2015	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	62656000	USD
CY2016Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	6980443000	USD
CY2017Q4	bpop	Other Investment Securities At Lower Of Cost Or Realizable Value OtherInvestmentSecuritiesAtLowerOfCostOrRealizableValue	167225000	USD
CY2015	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-1707000	USD
CY2017	us-gaap	Proceeds From Sale Of Loans Receivable ProceedsFromSaleOfLoansReceivable	415000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	5641750000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	22773747000	USD
CY2017	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	334000	USD
CY2016Q4	bpop	Securities Sold Under Agreements To Repurchase Not Offset SecuritiesSoldUnderAgreementsToRepurchaseNotOffset	0	USD
CY2016Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	30000000	shares
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-7839000	USD
CY2015	bpop	Net Disbursements On Loans Held For Sale NetDisbursementsOnLoansHeldForSale	792821000	USD
CY2017	bpop	Other Modifications OtherModifications	668
CY2016Q4	bpop	Other Investment Securities At Lower Of Cost Or Realizable Value OtherInvestmentSecuritiesAtLowerOfCostOrRealizableValue	167818000	USD
CY2015	bpop	Change In Money Market Investments ChangeInMoneyMarketInvestments	-357706000	USD
CY2016Q4	us-gaap	Available For Sale Securities Pledged As Collateral AvailableForSaleSecuritiesPledgedAsCollateral	491843000	USD
CY2015	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1362712000	USD
CY2017Q4	us-gaap	Securities Purchased Under Agreements To Resell SecuritiesPurchasedUnderAgreementsToResell	0	USD
CY2017	us-gaap	Guarantees Indemnifications And Warranties Policies GuaranteesIndemnificationsAndWarrantiesPolicies	<div><p style='text-align:justify;margin-top:0pt;margin-bottom:0pt;line-height:12pt;' ><font style='font-family:Arial;font-size:8pt;font-style:italic;margin-left:0pt;' >Guarantees, including indirect guarantees of indebtedness of others</font></p><p style='text-align:justify;margin-top:0pt;margin-bottom:6pt;line-height:12pt;' ><font style='font-family:Arial;font-size:8pt;margin-left:0pt;' >The C</font><font style='font-family:Arial;font-size:8pt;' >orporation, as a guarantor, recognizes at the inception of a guarantee, a liability for the fair value of the obligation undertaken in issuing the guarantee. Refer to Note </font><font style='font-family:Arial;font-size:8pt;' >26</font><font style='font-family:Arial;font-size:8pt;' > to the consolidated financial statements for further disclosures on guarantees</font><font style='font-family:Arial;font-size:8pt;' >.</font></p><p style='text-align:justify;margin-top:0pt;margin-bottom:0pt;line-height:12pt;' ></p></div>
CY2018Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	102173601	shares
CY2015	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-3877000	USD
CY2015	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	-1083683000	USD
CY2017Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	35672000	USD
CY2015	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-148215000	USD
CY2016Q4	us-gaap	Liabilities Liabilities	33463652000	USD
CY2017	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
CY2016Q4	us-gaap	Fair Value Hedges At Fair Value Net FairValueHedgesAtFairValueNet	0	USD
CY2015	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases	0	USD
CY2017	bpop	Fdic Reimbursable Expenses FDICReimbursableExpenses	2454000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	31127000	USD
CY2017Q4	bpop	Debt Maturities Repayments Of Principal In Year Four DebtMaturitiesRepaymentsOfPrincipalInYearFour	21840000	USD
CY2015Q4	us-gaap	Equity Restrictions EquityRestrictions	495000000	USD
CY2014Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-32832000	USD
CY2015	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	78112000	USD
CY2017	bpop	Net Disbursements On Loans Held For Sale NetDisbursementsOnLoansHeldForSale	315522000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	44277337000	USD
CY2015	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-72980000	USD
CY2016Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	31000000	USD
CY2016Q4	us-gaap	Capital Leases Net Investment In Direct Financing Leases Allowance For Uncollectible Minimum Lease Payments CapitalLeasesNetInvestmentInDirectFinancingLeasesAllowanceForUncollectibleMinimumLeasePayments	7677000	USD
CY2015Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-120000	USD
CY2015	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	35900000	USD
CY2016	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	3763000	USD
CY2016Q4	us-gaap	Fair Value Assets Level1 To Level2 Transfers Amount FairValueAssetsLevel1ToLevel2TransfersAmount	0	USD
CY2015	bpop	Proceeds From Issuance Of Stock ProceedsFromIssuanceOfStock	6226000	USD
CY2017Q4	us-gaap	Deposits Deposits	35453508000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	664287000	USD
CY2016Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	1091335000	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	12842000	USD
CY2016Q4	bpop	Deferred Tax Liabilities Other Liabilities DeferredTaxLiabilitiesOtherLiabilities	58363000	USD
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.02
CY2017	us-gaap	Depreciation Nonproduction DepreciationNonproduction	48364000	USD
CY2015	bpop	Occupancy Expense OccupancyExpense	22900000	USD
CY2017	bpop	Securities Purchased Sold Under Agreements To Resell Setoff Rights Description SecuritiesPurchasedSoldUnderAgreementsToResellSetoffRightsDescription	In addition, the Corporation’s Repurchase Agreements and Reverse Repurchase Agreements have a right of set-off with the respective counterparty under the supplemental terms of the Master Repurchase Agreements. In an event of default each party has a right of set-off against the other party for amounts owed in the related agreement and any other amount or obligation owed in respect of any other agreement or transaction between them.
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	94741000	USD
CY2017Q4	bpop	Prepaid Expense Other Current Noncurrent PrepaidExpenseOtherCurrentNoncurrent	84771000	USD
CY2017	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	52784000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Number Of Shares Of Equity Securities Issued By Employer And Related Parties Included In Plan Assets DefinedBenefitPlanNumberOfSharesOfEquitySecuritiesIssuedByEmployerAndRelatedPartiesIncludedInPlanAssets	145637	shares
CY2017	us-gaap	Factors Used To Identify Entitys Reportable Segments FactorsUsedToIdentifyEntitysReportableSegments	Management determined the reportable segments based on the internal reporting used to evaluate performance and to assess where to allocate resources. The segments were determined based on the organizational structure, which focuses primarily on the markets the segments serve, as well as on the products and services offered by the segments.
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-33852000	USD
CY2017	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	78907	shares
CY2016Q4	bpop	Fed Fund Assets Sold Weighted Average Interest Rate For Year FedFundAssetsSoldWeightedAverageInterestRateForYear	0.0101	pure
CY2016Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Gross DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross	492267000	USD
CY2017	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	362000	USD
CY2015	us-gaap	Increase Decrease In Interest And Dividends Receivable IncreaseDecreaseInInterestAndDividendsReceivable	-5392000	USD
CY2017	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	69464000	USD
CY2017	bpop	Accretion Of Fdic Indemnification Asset AccretionOfFDICIndemnificationAsset	-10066000	USD
CY2015	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	277398000	USD
CY2017	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	106604000	USD
CY2017Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	710484000	USD
CY2017Q4	us-gaap	Securities Sold Under Agreements To Repurchase Collateral Right To Reclaim Cash SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimCash	0	USD
CY2015Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	221811000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	72907000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	920046000	USD
CY2015Q4	us-gaap	Goodwill Goodwill	626388000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-40000	USD
CY2016Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	75576000	USD
CY2015	us-gaap	Proceeds From Sale Of Loans Receivable ProceedsFromSaleOfLoansReceivable	30160000	USD
CY2017	us-gaap	Nature Of Operations NatureOfOperations	<div><p style='text-align:justify;margin-top:12pt;margin-bottom:0pt;line-height:18pt;' ><font style='font-family:Arial;font-size:8pt;font-weight:bold;margin-left:0pt;color:#000000;' >Note </font><font style='font-family:Arial;font-size:8pt;font-weight:bold;color:#000000;' >1</font><font style='font-family:Arial;font-size:8pt;font-weight:bold;color:#000000;' > – Nature of operations</font></p></div><p style='line-height:20pt;' /><div><p style='text-align:justify;margin-top:0pt;margin-bottom:6pt;line-height:12pt;' ><font style='font-family:Arial;font-size:8pt;margin-left:0pt;' >Popular, Inc. (the “Corporation”)</font><font style='font-family:Arial;font-size:8pt;' > is a diversified, publicly owned financial holding company subject to the supervision and regulation of the Board of Governors of the Federal Reserve System. The Corporation has operations in Puerto Rico, the United States and the Caribbean. In Puerto Ric</font><font style='font-family:Arial;font-size:8pt;' >o, the Corporation provides retail, mortgage and commercial banking services, through its principal banking subsidiary, Banco Popular de Puerto Rico (“BPPR”), as well as investment banking, broker-dealer, auto and equipment leasing and financing, and insur</font><font style='font-family:Arial;font-size:8pt;' >ance services through specialized subsidiaries. In the U.S. mainland, the Corporation operates Banco Popular North America (“BPNA”). </font><font style='font-family:Arial;font-size:8pt;color:#000000;' >BPNA focuses efforts and resources on the core community banking business. </font><font style='font-family:Arial;font-size:8pt;' >BPNA operates branches in New York, New Jersey a</font><font style='font-family:Arial;font-size:8pt;' >nd South Florida under the name of Popular Community Bank. </font><font style='font-family:Arial;font-size:8pt;' >Note </font><font style='font-family:Arial;font-size:8pt;' >41</font><font style='font-family:Arial;font-size:8pt;' > to the consolidated financial statements presents information about the Corporation’s business segments.</font></p></div>
CY2016Q4	us-gaap	Goodwill Gross GoodwillGross	795506000	USD
CY2017Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	2023485000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	162149000	USD
CY2017Q4	us-gaap	Fair Value Liabilities Level2 To Level1 Transfers Amount FairValueLiabilitiesLevel2ToLevel1TransfersAmount	0	USD
CY2017	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	77420000	USD
CY2015	bpop	Fdic Loss Share Expense Income Other FDICLossShareExpenseIncomeOther	1714000	USD
CY2017Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	47656000	USD
CY2017Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Cash DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimCash	0	USD
CY2016Q4	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	0	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Other DeferredTaxAssetsTaxCreditCarryforwardsOther	18510000	USD
CY2015	bpop	Rental Income RentalIncome	28100000	USD
CY2016Q4	us-gaap	Prepaid Taxes PrepaidTaxes	172550000	USD
CY2015	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	46341000	USD
CY2016Q4	bpop	Prepaid Expense Other Current Noncurrent PrepaidExpenseOtherCurrentNoncurrent	90320000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	627294000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax	-32440000	USD
CY2015	bpop	Fdic Indemnification Asset Increase From Other Benefits FDICIndemnificationAssetIncreaseFromOtherBenefits	6882000	USD
CY2017Q4	us-gaap	Common Stock Value CommonStockValue	1042000	USD
CY2017Q4	us-gaap	Securities Sold Under Agreements To Repurchase Asset SecuritiesSoldUnderAgreementsToRepurchaseAsset	0	USD
CY2017	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	29672000	USD
CY2016Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1220307000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	67000	USD
CY2015	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	24373000	USD
CY2017	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	957050000	USD
CY2017	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	108342000	USD
CY2016Q4	us-gaap	Capital Leases Net Investment In Direct Financing Leases Initial Direct Costs CapitalLeasesNetInvestmentInDirectFinancingLeasesInitialDirectCosts	8309000	USD
CY2017	bpop	Gain Loss On Sales Of Loans Net Including Mortgage Banking Activities GainLossOnSalesOfLoansNetIncludingMortgageBankingActivities	16670000	USD
CY2017Q4	bpop	Property Plant And Equipment Net Excluding Construction In Progress PropertyPlantAndEquipmentNetExcludingConstructionInProgress	395846000	USD
CY2016Q4	us-gaap	Time Deposits Less Than100000 TimeDepositsLessThan100000	3570956000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	2900000	USD
CY2015	us-gaap	Payments Of Dividends PaymentsOfDividends	19257000	USD
CY2017Q4	us-gaap	Capital Leases Future Minimum Payments Receivable In Two Years CapitalLeasesFutureMinimumPaymentsReceivableInTwoYears	56421000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	48400000	USD
CY2017Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Gross DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross	405352000	USD
CY2017	bpop	Noncash Transfer To Securities From Loans Resulting From Securitization NoncashTransferToSecuritiesFromLoansResultingFromSecuritization	462033000	USD
CY2017	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	7661000	USD
CY2017	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2017	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	69000	USD
CY2017	us-gaap	Shortterm Debt Maximum Monthend Outstanding Amount ShorttermDebtMaximumMonthendOutstandingAmount	240598000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-402000	USD
CY2017	us-gaap	Maximum Length Of Time Hedged In Cash Flow Hedge1 MaximumLengthOfTimeHedgedInCashFlowHedge1	P0Y0M79D
CY2016Q4	us-gaap	Capital Leases Net Investment In Direct Financing Leases Deferred Income CapitalLeasesNetInvestmentInDirectFinancingLeasesDeferredIncome	117296000	USD
CY2017	bpop	Fed Funds Assets Sold Average Monthly Aggregate Balance Outstanding FedFundsAssetsSoldAverageMonthlyAggregateBalanceOutstanding	399422000	USD
CY2014Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-318000	USD
CY2017Q4	bpop	Trust Preferred Securities Subject To Phase Out Provision Of Dodd Frank Act TrustPreferredSecuritiesSubjectToPhaseOutProvisionOfDoddFrankAct	427000000	USD
CY2016Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	4000000	USD
CY2017	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySales	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-29513000	USD
CY2017	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	30265000	USD
CY2015Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	164411000	USD
CY2017Q4	us-gaap	Securities Sold Under Agreements To Repurchase Gross SecuritiesSoldUnderAgreementsToRepurchaseGross	390921000	USD
CY2016Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Asset DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset	0	USD
CY2017Q4	bpop	True Up Payment Term TrueUpPaymentTerm	45
CY2015	us-gaap	Gain Loss On Derivative Instruments Held For Trading Purposes Net GainLossOnDerivativeInstrumentsHeldForTradingPurposesNet	-305000	USD
CY2016Q4	us-gaap	Fair Value Liabilities Level1 To Level2 Transfers Amount FairValueLiabilitiesLevel1ToLevel2TransfersAmount	0	USD
CY2016Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	7793533000	USD
CY2017Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	14431000	USD
CY2017	bpop	Net Payments For Repurchase Of Common Stock NetPaymentsForRepurchaseOfCommonStock	75664000	USD
CY2017Q4	us-gaap	Capital Leases Future Minimum Payments Receivable In Three Years CapitalLeasesFutureMinimumPaymentsReceivableInThreeYears	121121000	USD
CY2017	bpop	Equipment Communications And Other Operating Expenses EquipmentCommunicationsAndOtherOperatingExpenses	24700000	USD
CY2015Q4	us-gaap	Goodwill Gross GoodwillGross	790799000	USD
CY2015Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	191916000	USD
CY2015	bpop	Other Real Estate Owned Additions OtherRealEstateOwnedAdditions	138391000	USD
CY2017Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	581771000	USD
CY2016	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	174234000	USD
CY2017Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	1083152000	USD
CY2017Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	14431000	USD
CY2017	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	2515
CY2017	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	17608000	USD
CY2017Q4	us-gaap	Other Assets OtherAssets	1991323000	USD
CY2017Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Securities DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimSecurities	390929000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2433000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-30366000	USD
CY2017Q4	us-gaap	Capital Leases Net Investment In Direct Financing Leases Minimum Payments To Be Received CapitalLeasesNetInvestmentInDirectFinancingLeasesMinimumPaymentsToBeReceived	681198000	USD
CY2017	bpop	Recent Loss Trend Adjustment RecentLossTrendAdjustment	12-months
CY2016	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Aggregate Losses AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses	112936000	USD
CY2017Q4	bpop	Debt Maturities Repayments Of Principal In Year Five DebtMaturitiesRepaymentsOfPrincipalInYearFive	5143000	USD
CY2017Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	0	USD
CY2017	bpop	Derivative Asset Liabilities Setoff Rights Description DerivativeAssetLiabilitiesSetoffRightsDescription	The Corporation’s derivatives are subject to agreements which allow a right of set-off with each respective counterparty.
CY2015	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-6089000	USD
CY2015	us-gaap	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	6106000	USD
CY2015	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	-9559000	USD
CY2016Q4	bpop	Fed Fund Assets Sold Weighted Average Interest Rate December FedFundAssetsSoldWeightedAverageInterestRateDecember	0.0112	pure
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	6202000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-2867000	USD
CY2017	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	1096000	USD
CY2016Q4	bpop	Property Plant And Equipment Net Excluding Construction In Progress PropertyPlantAndEquipmentNetExcludingConstructionInProgress	387797000	USD
CY2014Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	265766000	USD
CY2016Q4	us-gaap	Time Deposits TimeDeposits	7709542000	USD
CY2017Q4	bpop	Fed Fund Assets Sold Weighted Average Interest Rate December FedFundAssetsSoldWeightedAverageInterestRateDecember	0.015	pure
CY2017Q4	us-gaap	Derivative Credit Risk Valuation Adjustment Derivative Assets DerivativeCreditRiskValuationAdjustmentDerivativeAssets	200000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	697129000	USD
CY2015Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-256886000	USD
CY2017	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	641
CY2017Q4	bpop	Securities Sold Under Agreements To Repurchase Not Offset SecuritiesSoldUnderAgreementsToRepurchaseNotOffset	0	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	9000000	USD
CY2017	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-3078000	USD
CY2017	bpop	Change In Money Market Investments ChangeInMoneyMarketInvestments	-2364902000	USD
CY2015	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-3098000	USD
CY2017	bpop	Combination Interest Rate Reduction Maturity Date Extension CombinationInterestRateReductionMaturityDateExtension	376
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	211610000	USD
CY2017	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	8037000	USD
CY2017Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Amount Offset Against Collateral DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral	14302000	USD
CY2015Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	211276000	USD
CY2017	us-gaap	Gain Loss On Derivative Instruments Held For Trading Purposes Net GainLossOnDerivativeInstrumentsHeldForTradingPurposesNet	-923000	USD
CY2016Q4	us-gaap	Derivative Credit Risk Valuation Adjustment Derivative Liabilities DerivativeCreditRiskValuationAdjustmentDerivativeLiabilities	400000	USD
CY2017	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	521000	USD
CY2015	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	12292000	USD
CY2017Q4	bpop	Fed Fund Assets Sold Weighted Average Interest Rate For Year FedFundAssetsSoldWeightedAverageInterestRateForYear	0.0122	pure
CY2017Q4	us-gaap	Derivative Collateral Right To Reclaim Securities DerivativeCollateralRightToReclaimSecurities	8000	USD
CY2016Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned	492267000	USD
CY2017	bpop	Fdic Indemnification Asset Increase From Other Benefits FDICIndemnificationAssetIncreaseFromOtherBenefits	5550000	USD
CY2016Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	514892000	USD
CY2017Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	5255119000	USD
CY2014Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	159186000	USD
CY2016	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	0	USD
CY2015	bpop	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsAndTax	16032000	USD
CY2016Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	196889000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	334000	USD
CY2017	bpop	Transfers To Statutory Reserve TransfersToStatutoryReserve	0	USD
CY2017	bpop	Net Accretion Of Discounts Amortization Of Premiums And Deferred Fees NetAccretionOfDiscountsAmortizationOfPremiumsAndDeferredFees	22310000	USD
CY2017	bpop	Amortization Of Intangibles AmortizationOfIntangibles	9378000	USD
CY2016Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	153158000	USD
CY2017Q4	us-gaap	Securities Sold Under Agreements To Repurchase Amount Offset Against Collateral SecuritiesSoldUnderAgreementsToRepurchaseAmountOffsetAgainstCollateral	0	USD
CY2015	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	198000	USD
CY2015Q4	us-gaap	Related Party Transaction Due From To Related Party RelatedPartyTransactionDueFromToRelatedParty	165238000	USD
CY2016Q4	us-gaap	Fair Value Liabilities Level2 To Level1 Transfers Amount FairValueLiabilitiesLevel2ToLevel1TransfersAmount	0	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	85488000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	762037000	USD
CY2017	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	2472000	USD
CY2017	bpop	Other Real Estate Owned Write Downs OtherRealEstateOwnedWriteDowns	25198000	USD
CY2016Q4	bpop	Securities Trades Receivables SecuritiesTradesReceivables	46630000	USD
CY2016Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.09	pure
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	11544000	USD
CY2016Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	479425000	USD
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CY2017	bpop	Transfer From Loans To Foreclosed Assets TransferFromLoansToForeclosedAssets	109442000	USD
CY2015	bpop	Payments To Acquire Advance Payments By Borrowers For Taxes And Insurance PaymentsToAcquireAdvancePaymentsByBorrowersForTaxesAndInsurance	61304000	USD
CY2015Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	103618976	shares
CY2017Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	USD
CY2017	us-gaap	Fair Value Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	-11700000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	767539000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Number Of Shares Of Equity Securities Issued By Employer And Related Parties Included In Plan Assets DefinedBenefitPlanNumberOfSharesOfEquitySecuritiesIssuedByEmployerAndRelatedPartiesIncludedInPlanAssets	149127	shares
CY2017Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	154049000	USD
CY2015Q4	us-gaap	Fair Value Assets Level1 To Level2 Transfers Amount FairValueAssetsLevel1ToLevel2TransfersAmount	0	USD
CY2015	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	65063000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	5103905000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-43034000	USD
CY2017	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	9000	USD
CY2017Q4	us-gaap	Income Tax Examination Penalties Accrued IncomeTaxExaminationPenaltiesAccrued	0	USD
CY2015	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	23956000	USD
CY2015	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	4856000	USD
CY2017	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	3723000	USD
CY2015	bpop	Other Real Estate Owned Other Adjustments OtherRealEstateOwnedOtherAdjustments	-1491000	USD
CY2016Q4	us-gaap	Other Borrowings OtherBorrowings	1200000	USD
CY2017Q4	us-gaap	Derivative Credit Risk Valuation Adjustment Derivative Liabilities DerivativeCreditRiskValuationAdjustmentDerivativeLiabilities	100000	USD
CY2017	us-gaap	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	-18947000	USD
CY2017	bpop	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsAndTax	5164000	USD
CY2017	us-gaap	Interest Paid InterestPaid	221432000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	9286000	USD
CY2014Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	205187000	USD
CY2015	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	1949000	USD
CY2015	bpop	Fdic Reimbursable Expenses FDICReimbursableExpenses	73205000	USD
CY2015	bpop	Transfer From Loans To Foreclosed Assets TransferFromLoansToForeclosedAssets	172474000	USD
CY2016Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Securities DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimSecurities	480172000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-68318000	USD
CY2017	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	-11700000	USD
CY2017	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	4252000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	28160000	USD
CY2017	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	32100000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1100000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	2157000	USD
CY2017	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	20305000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	13684000	USD
CY2017	bpop	Payments To Acquire Advance Payments By Borrowers For Taxes And Insurance PaymentsToAcquireAdvancePaymentsByBorrowersForTaxesAndInsurance	0	USD
CY2016Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	908563000	USD
CY2017Q4	us-gaap	Prepaid Taxes PrepaidTaxes	168852000	USD
CY2017Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	164858000	USD
CY2017Q4	us-gaap	Fair Value Liabilities Level1 To Level2 Transfers Amount FairValueLiabilitiesLevel1ToLevel2TransfersAmount	0	USD
CY2016Q4	bpop	Short Term Debt Weighted Average Interest Rate During Year ShortTermDebtWeightedAverageInterestRateDuringYear	0.0215	pure
CY2016Q4	us-gaap	Defined Benefit Plan Amount Of Employer And Related Party Securities Included In Plan Assets DefinedBenefitPlanAmountOfEmployerAndRelatedPartySecuritiesIncludedInPlanAssets	6382000	USD
CY2015	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	103124309	shares
CY2017	bpop	Rental Income RentalIncome	26600000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	73723000	USD
CY2016Q4	bpop	Derivative Liability Fair Value Gross Asset Not Offset DerivativeLiabilityFairValueGrossAssetNotOffset	551000	USD
CY2015	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	230000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Other DeferredTaxAssetsTaxCreditCarryforwardsOther	24048000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	7300000	USD
CY2017	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	3723000	USD
CY2017	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	0	USD
CY2015	us-gaap	Fair Value Assets And Liabilities Measured On Recurring Basis Gain Loss Included In Earnings FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisGainLossIncludedInEarnings	-1009000	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	9000000	USD
CY2017Q4	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	0	USD
CY2017	us-gaap	Fair Value Assets And Liabilities Measured On Recurring Basis Gain Loss Included In Earnings FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisGainLossIncludedInEarnings	-48416000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	2068697000	USD
CY2015	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	157123	shares
CY2017	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	0	USD
CY2015	bpop	Transfers Of Trading Securities To Available For Sale Securities TransfersOfTradingSecuritiesToAvailableForSaleSecurities	63645000	USD
CY2017	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	1705000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	920747000	USD
CY2016Q4	bpop	Deposits Negotiable Order Of Withdrawal Now Money Market Account And Other Demand Deposits DepositsNegotiableOrderOfWithdrawalNOWMoneyMarketAccountAndOtherDemandDeposits	8012706000	USD
CY2017Q4	bpop	Debt Maturities Repayments Of Principal In Year Two DebtMaturitiesRepaymentsOfPrincipalInYearTwo	609015000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	2318000	USD
CY2015	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Other Comprehensive Income FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome	0	USD
CY2015Q4	us-gaap	Fair Value Liabilities Level2 To Level1 Transfers Amount FairValueLiabilitiesLevel2ToLevel1TransfersAmount	0	USD
CY2016Q4	bpop	Trades Payables To Brokers And Counterparties TradesPayablesToBrokersAndCounterparties	102000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	24292794000	USD
CY2016Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.15
CY2015	bpop	Fdic Indemnification Asset Net Cash Payments Received FDICIndemnificationAssetNetCashPaymentsReceived	247976000	USD
CY2017Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	25500000	USD
CY2015	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySales	0	USD
CY2017Q4	us-gaap	Defined Benefit Plan Amount Of Employer And Related Party Securities Included In Plan Assets DefinedBenefitPlanAmountOfEmployerAndRelatedPartySecuritiesIncludedInPlanAssets	5293000	USD
CY2016Q4	us-gaap	Securities Sold Under Agreements To Repurchase Amount Offset Against Collateral SecuritiesSoldUnderAgreementsToRepurchaseAmountOffsetAgainstCollateral	0	USD
CY2017	bpop	Other Real Estate Owned Additions OtherRealEstateOwnedAdditions	89593000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	34786000	USD
CY2017	bpop	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriod	-790000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentals	300000	USD
CY2017Q4	us-gaap	Transfers Of Financial Assets Accounted For As Sale Initial Fair Value Of Liabilities Incurred TransfersOfFinancialAssetsAccountedForAsSaleInitialFairValueOfLiabilitiesIncurred	0	USD
CY2017Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	109091000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	29845000	USD
CY2017	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2017	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2017Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	6100000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesTax	2486000	USD
CY2017Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	8561718000	USD
CY2017Q4	bpop	Unrecognized Tax Benefits Expected Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsExpectedDecreasesResultingFromSettlementsWithTaxingAuthorities	4600000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax	-59666000	USD
CY2016	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	0	USD
CY2016Q4	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	138081000	USD
CY2016Q4	us-gaap	Derivative Collateral Right To Reclaim Securities DerivativeCollateralRightToReclaimSecurities	747000	USD
CY2016Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	USD
CY2016Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	902689000	USD
CY2015Q4	us-gaap	Fair Value Liabilities Level1 To Level2 Transfers Amount FairValueLiabilitiesLevel1ToLevel2TransfersAmount	0	USD
CY2017Q4	us-gaap	Notes Payable NotesPayable	1536356000	USD
CY2017Q4	us-gaap	Fair Value Assets Level2 To Level1 Transfers Amount FairValueAssetsLevel2ToLevel1TransfersAmount	0	USD
CY2015	bpop	Fair Value Assets And Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss Total FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLossTotal	18398000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	10262000	USD
CY2016	us-gaap	Interest Paid InterestPaid	212353000	USD
CY2016Q4	us-gaap	Trading Securities TradingSecurities	59805000	USD
CY2015Q2	bpop	Bulk Sale Of Covered Other Real Estate BulkSaleOfCoveredOtherRealEstate	37000000	USD
CY2016Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	182772000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	31886000	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	18090000	USD
CY2017Q4	us-gaap	Securities Sold Under Agreements To Repurchase Collateral Right To Reclaim Securities SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimSecurities	390921000	USD
CY2016Q4	us-gaap	Derivative Credit Risk Valuation Adjustment Derivative Assets DerivativeCreditRiskValuationAdjustmentDerivativeAssets	900000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	31985000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-27014000	USD
CY2017	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	8299000	USD
CY2015	bpop	Transfers Of Loans To Other Property TransfersOfLoansToOtherProperty	36106000	USD
CY2017	dei	Document Period End Date DocumentPeriodEndDate	2017-12-31
CY2017	dei	Entity Central Index Key EntityCentralIndexKey	0000763901
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesNetOfTax	11959000	USD
CY2014Q4	bpop	Cash And Due From Banks1 CashAndDueFromBanks1	381095000	USD
CY2016Q4	bpop	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Asset Not Offset DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAssetNotOffset	551000	USD
CY2017Q4	us-gaap	Other Notes Payable OtherNotesPayable	18642000	USD
CY2014Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	133634000	USD
CY2017	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	6947000	USD
CY2017	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	11700000	USD
CY2017Q4	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	96208000	USD
CY2017Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	390921000	USD
CY2017Q4	us-gaap	Fair Value Assets Level1 To Level2 Transfers Amount FairValueAssetsLevel1ToLevel2TransfersAmount	0	USD
CY2017Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	1108393000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	4967000	USD
CY2017Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	26237000	USD
CY2016	bpop	Net Accretion Of Discounts Amortization Of Premiums And Deferred Fees NetAccretionOfDiscountsAmortizationOfPremiumsAndDeferredFees	40786000	USD
CY2016	bpop	Rental Income RentalIncome	27800000	USD
CY2015	bpop	Fees And Commission Miscellaneous Other FeesAndCommissionMiscellaneousOther	15060000	USD
CY2016Q4	bpop	Funds Advanced To Investors Under Servicing Agreements FundsAdvancedToInvestorsUnderServicingAgreements	69711000	USD
CY2017Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	524901000	USD
CY2017Q4	bpop	Debt Maturities Repayments Of Principal In Year Three DebtMaturitiesRepaymentsOfPrincipalInYearThree	112144000	USD
CY2017	bpop	Servicing Asset At Fair Value Payments On Loans ServicingAssetAtFairValuePaymentsOnLoans	-15308000	USD
CY2017	bpop	Other Real Estate Owned Other Adjustments OtherRealEstateOwnedOtherAdjustments	-930000	USD
CY2017	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	0	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	38937000	USD
CY2016Q4	bpop	Securities Sold Under Agreements To Repurchase Offsetting SecuritiesSoldUnderAgreementsToRepurchaseOffsetting	479425000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-1152000	USD
CY2017Q4	bpop	Weighted Average Mortgage Servicing Fees WeightedAverageMortgageServicingFees	0.28	pure
CY2017Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	188347000	USD
CY2016Q4	bpop	Deferred Tax Asset Operating Loss Carryforwards And Other Carryforwards DeferredTaxAssetOperatingLossCarryforwardsAndOtherCarryforwards	1238222000	USD
CY2016Q4	us-gaap	Income Tax Examination Penalties Accrued IncomeTaxExaminationPenaltiesAccrued	0	USD
CY2015	bpop	Noncash Transfer To Securities From Loans Resulting From Securitization NoncashTransferToSecuritiesFromLoansResultingFromSecuritization	1088121000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-102170000	USD
CY2016	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	27035000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-1921000	USD
CY2017	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2016	bpop	Servicing Asset At Fair Value Payments On Loans ServicingAssetAtFairValuePaymentsOnLoans	-17482000	USD
CY2017	bpop	Fdic Indemnification Asset Additional Estimated Loss FDICIndemnificationAssetAdditionalEstimatedLoss	3136000	USD
CY2015	bpop	Transfers Of Loans To Other Real Estate Owned TransfersOfLoansToOtherRealEstateOwned	136368000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	627294000	USD
CY2017Q4	bpop	Deposits Negotiable Order Of Withdrawal Now Money Market Account And Other Demand Deposits DepositsNegotiableOrderOfWithdrawalNOWMoneyMarketAccountAndOtherDemandDeposits	10885967000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesBeforeTax	14445000	USD
CY2016Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	15600000	USD
CY2015	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	3723000	USD
CY2017	bpop	Fdic Loss Share Expense Income Other FDICLossShareExpenseIncomeOther	-5892000	USD
CY2017Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	402857000	USD
CY2017	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1
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CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	23402000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1635689000	USD
CY2017Q4	us-gaap	Other Borrowings OtherBorrowings	1208000	USD
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	103377283	shares
CY2017	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2017
CY2017Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	64982000	USD
CY2017Q4	bpop	Available For Sale Securities Weighted Average Yield AvailableForSaleSecuritiesWeightedAverageYield	0.0196	pure
CY2016	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	165000	USD
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CY2016Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	73974000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	29509000	USD
CY2017	bpop	Valuation Allowance And Reserves Recoveries ValuationAllowanceAndReservesRecoveries	68926000	USD
CY2016	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1227966000	USD
CY2016	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	907000	USD
CY2016	us-gaap	Shortterm Debt Maximum Monthend Outstanding Amount ShorttermDebtMaximumMonthendOutstandingAmount	31200000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	-1228000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	2700000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesTax	1559000	USD
CY2017	bpop	Related Party Transactions Payments RelatedPartyTransactionsPayments	-22796000	USD
CY2017Q4	us-gaap	Fair Value Of Securities Received As Collateral That Can Be Resold Or Repledged FairValueOfSecuritiesReceivedAsCollateralThatCanBeResoldOrRepledged	0	USD
CY2016Q4	bpop	Total Of Securities Purchased Under Agreement To Resell TotalOfSecuritiesPurchasedUnderAgreementToResell	27388000	USD
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	4651571000	USD
CY2016	us-gaap	Heldtomaturity Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Loss HeldtomaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLoss	22186000	USD
CY2016Q4	us-gaap	Capital Leases Net Investment In Direct Financing Leases Minimum Payments To Be Received CapitalLeasesNetInvestmentInDirectFinancingLeasesMinimumPaymentsToBeReceived	601317000	USD
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CY2016Q4	bpop	Federal Home Loan Bank Advances And Letters Of Credit Amount Used FederalHomeLoanBankAdvancesAndLettersOfCreditAmountUsed	673000000	USD
CY2016Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Amount Offset Against Collateral DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral	11544000	USD
CY2015Q4	us-gaap	Fair Value Assets Level2 To Level1 Transfers Amount FairValueAssetsLevel2ToLevel1TransfersAmount	0	USD
CY2016	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	77129000	USD
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CY2016	us-gaap	Trading Gains Losses TradingGainsLosses	-785000	USD
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CY2016	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	3801000	USD
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CY2015	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	0	USD
CY2017	bpop	Defined Benefit Plan Amount Of Dividends Received On Employer And Related Party Securities DefinedBenefitPlanAmountOfDividendsReceivedOnEmployerAndRelatedPartySecurities	132000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	9000000	USD
CY2015	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	7152000	USD
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CY2016	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.6
CY2016	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	0	USD
CY2017Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	13356000	USD
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CY2015	us-gaap	Labor And Related Expense LaborAndRelatedExpense	477519000	USD
CY2017	us-gaap	Interest Revenue Expense Net InterestRevenueExpenseNet	1501964000	USD
CY2016Q4	bpop	Guaranteed Mortgage Loan Claims GuaranteedMortgageLoanClaims	152403000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	153291000	USD
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CY2016	us-gaap	Professional Fees ProfessionalFees	323043000	USD
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-495172000	USD
CY2016	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation And Exercise Of Stock Options AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions	47000	USD
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CY2017Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	133085000	USD
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CY2015	bpop	Adjustments To Indemnity Reserves On Loans Sold AdjustmentsToIndemnityReservesOnLoansSold	-18628000	USD
CY2016	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	0	USD
CY2017Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	132395000	USD
CY2016Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	88821000	USD
CY2017	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	64340000	USD
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CY2016	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	5947000	USD
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CY2016	bpop	Transfers Of Trading Securities To Available For Sale Securities TransfersOfTradingSecuritiesToAvailableForSaleSecurities	0	USD
CY2016	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	32400000	USD
CY2015	us-gaap	Fair Value Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	12292000	USD
CY2016	bpop	Defined Benefit Plan Amount Of Dividends Received On Employer And Related Party Securities DefinedBenefitPlanAmountOfDividendsReceivedOnEmployerAndRelatedPartySecurities	22000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	1242261000	USD
CY2015Q4	bpop	Securities Trades Receivables SecuritiesTradesReceivables	78759000	USD
CY2016	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	2161000	USD
CY2017Q4	us-gaap	Goodwill Gross GoodwillGross	795506000	USD
CY2017	bpop	Fees And Commission Debit Cards FeesAndCommissionDebitCards	42721000	USD
CY2016	us-gaap	Payments To Purchase Loans Held For Sale PaymentsToPurchaseLoansHeldForSale	310217000	USD
CY2017Q4	bpop	Derivative Liability Fair Value Gross Asset Not Offset DerivativeLiabilityFairValueGrossAssetNotOffset	121000	USD
CY2017	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersIntoLevel3	0	USD
CY2015	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	-7000	USD
CY2017	bpop	Recoveries On Covered Assets Subject To Reimbursement To Fdic Mirror Accounting RecoveriesOnCoveredAssetsSubjectToReimbursementToFDICMirrorAccounting	2405000	USD
CY2016	us-gaap	Payments Of Dividends PaymentsOfDividends	65932000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Investment In Subsidiaries DeferredTaxAssetsInvestmentInSubsidiaries	30424000	USD
CY2017Q4	bpop	Investments In Subsidiaries InvestmentsInSubsidiaries	0	USD
CY2017Q4	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	500000000	USD
CY2015Q4	bpop	Cash And Due From Banks1 CashAndDueFromBanks1	363674000	USD
CY2016	bpop	Transfers To Statutory Reserve TransfersToStatutoryReserve	0	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-3612000	USD
CY2017	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	51495000	USD
CY2016	bpop	Other Real Estate Owned Write Downs OtherRealEstateOwnedWriteDowns	15071000	USD
CY2016	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	107986000	USD
CY2016Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	826707000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-21948000	USD
CY2016	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	14130000	USD
CY2016	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-19357000	USD
CY2016	bpop	Net Revenue NetRevenue	1719991000	USD
CY2016	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	1384000	USD
CY2016	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	6266000	USD
CY2015	us-gaap	Fees And Commissions Fiduciary And Trust Activities FeesAndCommissionsFiduciaryAndTrustActivities	18866000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	900000	USD
CY2015	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	2086000	USD
CY2017	us-gaap	Communication Communication	22466000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	3838000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-8562000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	2853259000	USD
CY2016	bpop	Occupancy Expense OccupancyExpense	22600000	USD
CY2016	bpop	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriod	-2203000	USD
CY2016	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	62234000	USD
CY2015	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	8.66
CY2017	bpop	Depreciation Nonproduction Continued And Discontinued Operations DepreciationNonproductionContinuedAndDiscontinuedOperations	48364000	USD
CY2016	bpop	Deferred Income Tax Expense Benefit Incluiding Discontinued Operations DeferredIncomeTaxExpenseBenefitIncluidingDiscontinuedOperations	61574000	USD
CY2016	bpop	Other Real Estate Owned Sales OtherRealEstateOwnedSales	90926000	USD
CY2016	bpop	Financing Receivable Allowance For Credit Losses Other Adjustments FinancingReceivableAllowanceForCreditLossesOtherAdjustments	5445000	USD
CY2015	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	58592000	USD
CY2016	bpop	Other Real Estate Owned Expense Net Of Gain Loss On Sale Or Disposition OtherRealEstateOwnedExpenseNetOfGainLossOnSaleOrDisposition	47119000	USD
CY2015	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.01
CY2017	bpop	Reduction In Interest Rate ReductionInInterestRate	1346
CY2017	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	0	USD
CY2015	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	102000	USD
CY2017	us-gaap	Cash Dividends Paid To Parent Company CashDividendsPaidToParentCompany	0	USD
CY2017Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	14302000	USD
CY2017	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-3078000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	113000	USD
CY2016Q4	invest	Derivative Notional Amount DerivativeNotionalAmount	556355000	USD
CY2016Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	4000000	USD
CY2016Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	204959000	USD
CY2015	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	102967186	shares
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	624170000	USD
CY2017	bpop	Transfers Of Loans To Other Property TransfersOfLoansToOtherProperty	27407000	USD
CY2015	bpop	Net Revenue NetRevenue	1928524000	USD
CY2017Q4	us-gaap	Trading Securities TradingSecurities	43187000	USD
CY2017Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	10285586000	USD
CY2017Q4	bpop	Intrinsic Loss Estimate IntrinsicLossEstimate	4600000000	USD
CY2017Q4	us-gaap	Equity Method Investments EquityMethodInvestments	215349000	USD
CY2017	bpop	Transfers Of Financial Assets Accounted For As Sale Initial Fair Value Of Asset Obtained As Proceeds TransfersOfFinancialAssetsAccountedForAsSaleInitialFairValueOfAssetObtainedAsProceeds	468931000	USD
CY2015	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	731279000	USD
CY2015Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	197209	shares
CY2017Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	2169178	shares
CY2017Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	84303000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	547142000	USD
CY2017Q4	us-gaap	Time Deposits TimeDeposits	7514878000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	834526000	USD
CY2017	bpop	Debt Redemption Price Description DebtRedemptionPriceDescription	the junior subordinated debentures at a redemption price equal to 100% of the principal amount, plus accrued and unpaid interest to the date of redemption
CY2017Q4	bpop	Short Term Debt Weighted Average Interest Rate During Year ShortTermDebtWeightedAverageInterestRateDuringYear	0.0161	pure
CY2017	us-gaap	Defined Benefit Plan Transfers Between Measurement Levels DefinedBenefitPlanTransfersBetweenMeasurementLevels	0	USD
CY2015	bpop	Equipment Communications And Other Operating Expenses EquipmentCommunicationsAndOtherOperatingExpenses	24600000	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	14094000	USD
CY2016Q4	bpop	Weighted Average Mortgage Servicing Fees WeightedAverageMortgageServicingFees	0.3	pure
CY2017	bpop	Occupancy Expense OccupancyExpense	23700000	USD
CY2016	us-gaap	Cash Dividends Paid To Parent Company CashDividendsPaidToParentCompany	0	USD
CY2015Q4	bpop	Trades Payables To Brokers And Counterparties TradesPayablesToBrokersAndCounterparties	6150000	USD
CY2016Q4	us-gaap	Fair Value Assets Level2 To Level1 Transfers Amount FairValueAssetsLevel2ToLevel1TransfersAmount	0	USD
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2016	bpop	Related Party Transaction Other Changes RelatedPartyTransactionOtherChanges	-687000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	9042000	USD
CY2017Q4	bpop	Debt Redemption Price Percent Of Principal Amount DebtRedemptionPricePercentOfPrincipalAmount	1	pure
CY2017Q4	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	4000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesNetOfTax	6740000	USD
CY2017	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	5724000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.05
CY2016	bpop	Revenue From Investment Securities RevenueFromInvestmentSecurities	152011000	USD
CY2017	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	153709000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	893997000	USD
CY2016	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	102019	shares
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	109091000	USD
CY2017	us-gaap	Interest Expense InterestExpense	223980000	USD
CY2016	us-gaap	Noninterest Income NoninterestIncome	297936000	USD
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.06
CY2016	bpop	Other Real Estate Owned Additions OtherRealEstateOwnedAdditions	130100000	USD
CY2017Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	93821000	USD
CY2016	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	170016000	USD
CY2016Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	22390568000	USD
CY2017	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2017Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	112897000	USD
CY2017	bpop	Fdic Indemnification Asset Net Cash Payments Received FDICIndemnificationAssetNetCashPaymentsReceived	22589000	USD
CY2017	dei	Document Type DocumentType	10-K
CY2017Q4	bpop	Cash And Due From Banks1 CashAndDueFromBanks1	402857000	USD
CY2015	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	6226000	USD
CY2017Q4	us-gaap	Available For Sale Securities Pledged As Collateral AvailableForSaleSecuritiesPledgedAsCollateral	393634000	USD
CY2017Q4	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	4068303000	USD
CY2017	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	pure
CY2016Q4	bpop	Investments In Subsidiaries InvestmentsInSubsidiaries	0	USD
CY2017Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	168031000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	246959000	USD
CY2016Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	956057000	USD
CY2016	us-gaap	Defined Benefit Plan Transfers Between Measurement Levels DefinedBenefitPlanTransfersBetweenMeasurementLevels	0	USD
CY2016Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Gross DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross	37731000	USD
CY2016	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	2639000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	13386000	USD
CY2017	bpop	Increase Decrease In The Allowance For Loan Losses Result Of Modification IncreaseDecreaseInTheAllowanceForLoanLossesResultOfModification	10176000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	-3149000	USD
CY2016	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	-753839000	USD
CY2016	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	0	USD
CY2017Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	2006391	shares
CY2016Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1243668000	USD
CY2016Q4	us-gaap	Other Notes Payable OtherNotesPayable	18071000	USD
CY2016Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	0	USD
CY2015Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-9560000	USD
CY2015Q4	us-gaap	Derivative Credit Risk Valuation Adjustment Derivative Liabilities DerivativeCreditRiskValuationAdjustmentDerivativeLiabilities	300000	USD
CY2017	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Other Comprehensive Income FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome	0	USD
CY2016	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	-4745000	USD
CY2016Q4	us-gaap	Fdic Indemnification Asset FDICIndemnificationAsset	69334000	USD
CY2017Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	102068981	shares
CY2016Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	0	USD
CY2017	bpop	Servicing Amount Period Trueup Payment ServicingAmountPeriodTrueupPayment	twelve-month period
CY2017	dei	Entity Registrant Name EntityRegistrantName	POPULAR INC
CY2017	bpop	Fdic Indemnification Asset Accretion Amortization Of Discount FdicIndemnificationAssetAccretionAmortizationOfDiscount	-469000	USD
CY2016Q4	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	0	USD
CY2017Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	170420000	USD
CY2016Q4	us-gaap	Securities Purchased Under Agreements To Resell Amount Offset Against Collateral SecuritiesPurchasedUnderAgreementsToResellAmountOffsetAgainstCollateral	0	USD
CY2016	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	1459720000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	78784000	USD
CY2017	bpop	Equity In Undistributed Earnings Losses Of Subsidiaries EquityInUndistributedEarningsLossesOfSubsidiaries	0	USD
CY2016Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	168212000	USD
CY2016	bpop	Change In Money Market Investments ChangeInMoneyMarketInvestments	-710125000	USD
CY2016	bpop	Equipment Communications And Other Operating Expenses EquipmentCommunicationsAndOtherOperatingExpenses	24300000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesNetOfTax	167000	USD
CY2015	us-gaap	Asset Management Fees1 AssetManagementFees1	23846000	USD
CY2015	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	542000	USD
CY2015	bpop	Equity In Undistributed Earnings Losses Of Subsidiaries Of Continued Operations EquityInUndistributedEarningsLossesOfSubsidiariesOfContinuedOperations	0	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	379000	USD
CY2016	bpop	Transfer From Loans To Foreclosed Assets TransferFromLoansToForeclosedAssets	145948000	USD
CY2016	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	2202000	USD
CY2016	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	17000	USD
CY2017	us-gaap	Employee Stock Ownership Plan Esop Method Of Measuring Compensation EmployeeStockOwnershipPlanESOPMethodOfMeasuringCompensation	Stock-based compensation The Corporation opted to use the fair value method of recording stock-based compensation as described in the guidance for employee share plans in ASC Subtopic 718-50.
CY2016	us-gaap	Communication Communication	23897000	USD
CY2015	bpop	Indemnification Asset Reduction IndemnificationAssetReduction	0	USD
CY2016	us-gaap	Fair Value Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	-32778000	USD
CY2016	us-gaap	Gain Loss On Derivative Instruments Held For Trading Purposes Net GainLossOnDerivativeInstrumentsHeldForTradingPurposesNet	-124000	USD
CY2016	bpop	Net Gain Loss And Valuation Adjustments On Investment Securities NetGainLossAndValuationAdjustmentsOnInvestmentSecurities	1962000	USD
CY2015	bpop	Other Real Estate Owned Sales OtherRealEstateOwnedSales	164586000	USD
CY2017Q4	bpop	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Asset Not Offset DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAssetNotOffset	121000	USD
CY2017Q4	us-gaap	Fair Value Hedges At Fair Value Net FairValueHedgesAtFairValueNet	0	USD
CY2016Q4	bpop	Deferred Tax Assets Depreciation DeferredTaxAssetsDepreciation	9828000	USD
CY2016Q4	us-gaap	Securities Sold Under Agreements To Repurchase Collateral Right To Reclaim Securities SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimSecurities	479425000	USD
CY2015	bpop	Recognition Of Mortgage Servicing Rights On Securitizations Or Asset Transfers RecognitionOfMortgageServicingRightsOnSecuritizationsOrAssetTransfers	13460000	USD
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	102045336	shares
CY2016Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	8477000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	43398000	USD
CY2017	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2017Q4	bpop	Derivative Asset Fair Value Gross Liability Not Offset DerivativeAssetFairValueGrossLiabilityNotOffset	121000	USD
CY2017	bpop	Puerto Rico Laws Restrictions On Banks Net Income PuertoRicoLawsRestrictionsOnBanksNetIncome	a minimum of 10% of BPPR’s net income
CY2015	us-gaap	Fees And Commissions Other FeesAndCommissionsOther	236090000	USD
CY2015	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	241478000	USD
CY2015	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	7243000	USD
CY2015	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	52076000	USD
CY2015	us-gaap	Interest Expense Deposits InterestExpenseDeposits	107533000	USD
CY2017	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	26392000	USD
CY2015	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	7512000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.05
CY2015	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	160108000	USD
CY2017	bpop	Fdic Loss Share Income FDICLossShareIncome	-10066000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	398825000	USD
CY2016	bpop	Income Loss Before Equity In Undistributed Earnings Of Subsidiaries IncomeLossBeforeEquityInUndistributedEarningsOfSubsidiaries	215556000	USD
CY2016Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	112936000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	216691000	USD
CY2016	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-55678000	USD
CY2016	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	0	USD
CY2016	bpop	Acquisition Of Trademark AcquisitionOfTrademark	0	USD
CY2016	bpop	Fdic Indemnification Asset Increase From Other Benefits FDICIndemnificationAssetIncreaseFromOtherBenefits	87000	USD
CY2016	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySales	0	USD
CY2016	bpop	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsAndTax	11402000	USD
CY2016	bpop	Increase Decrease In The Allowance For Loan Losses Result Of Modification IncreaseDecreaseInTheAllowanceForLoanLossesResultOfModification	19032000	USD
CY2016Q4	bpop	Realizable Value Of Other Investment Securities RealizableValueOfOtherInvestmentSecurities	170890000	USD
CY2017	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	4784000	USD
CY2016	bpop	Equity In Undistributed Earnings Losses Of Subsidiaries Of Continued Operations EquityInUndistributedEarningsLossesOfSubsidiariesOfContinuedOperations	0	USD
CY2016	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersIntoLevel3	0	USD
CY2016Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowed	37731000	USD
CY2016	bpop	Combination Interest Rate Reduction Maturity Date Extension CombinationInterestRateReductionMaturityDateExtension	522
CY2017Q4	bpop	Fdic Indemnification Asset1 FDICIndemnificationAsset1	46316000	USD
CY2017Q4	bpop	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Liability Not Offset DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiabilityNotOffset	121000	USD
CY2016Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	23897000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	-3800000	USD
CY2016	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	9021000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	7400000	USD
CY2015	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	17065000	USD
CY2016Q4	bpop	Cash And Due From Banks1 CashAndDueFromBanks1	362394000	USD
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	101966429	shares
CY2017Q4	bpop	Deferred Tax Asset Operating Loss Carryforwards And Other Carryforwards DeferredTaxAssetOperatingLossCarryforwardsAndOtherCarryforwards	823670000	USD
CY2016	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	4707000	USD
CY2017Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	23862645000	USD
CY2016	bpop	Fdic Loss Share Income FDICLossShareIncome	-207779000	USD
CY2015	bpop	Equity In Undistributed Earnings Losses Of Discontinued Operations EquityInUndistributedEarningsLossesOfDiscontinuedOperations	0	USD
CY2016Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	3800000000	USD
CY2015	us-gaap	Equipment Expense EquipmentExpense	60110000	USD
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2016	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	12144000	USD
CY2017	us-gaap	Use Of Estimates UseOfEstimates	<div><p style='text-align:justify;margin-top:0pt;margin-bottom:0pt;line-height:12pt;' ><font style='font-family:Arial;font-size:8pt;font-style:italic;margin-left:0pt;' >Use of estimates i</font><font style='font-family:Arial;font-size:8pt;font-style:italic;' >n the preparation of financial statements</font></p><p style='text-align:justify;margin-top:0pt;margin-bottom:6pt;line-height:12pt;' ><font style='font-family:Arial;font-size:8pt;margin-left:0pt;' >The preparation of financial statements in conformity with accounting principles generally accepted in the </font><font style='font-family:Arial;font-size:8pt;' >United States of America</font><font style='font-family:Arial;font-size:8pt;' > requires management to make estimates and assumptions that affect the reported amo</font><font style='font-family:Arial;font-size:8pt;' >unts of assets and liabilities and contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.</font></p><p style='text-align:justify;margin-top:0pt;margin-bottom:0pt;line-height:12pt;' ></p></div>
CY2015	bpop	Deferred Income Tax Expense Benefit Incluiding Discontinued Operations DeferredIncomeTaxExpenseBenefitIncluidingDiscontinuedOperations	-519128000	USD
CY2017	bpop	Fees And Commission Miscellaneous Other FeesAndCommissionMiscellaneousOther	14084000	USD
CY2016	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	15452000	USD
CY2015	bpop	Noninterest Expense Other NoninterestExpenseOther	1229728000	USD
CY2016	bpop	Return Of Capital From Wholly Owned Subsidiaries ReturnOfCapitalFromWhollyOwnedSubsidiaries	0	USD
CY2015	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	85000	USD
CY2015	us-gaap	Depreciation Nonproduction DepreciationNonproduction	47474000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	107681000	USD
CY2015	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	12880000	USD
CY2016	bpop	Reduction Due To Loan Repurchases ReductionDueToLoanRepurchases	-3109000	USD
CY2017Q4	bpop	Deposits Savings Negotiable Order Of Withdrawal Now Money Market Account And Other Demand Deposits DepositsSavingsNegotiableOrderOfWithdrawalNOWMoneyMarketAccountAndOtherDemandDeposits	19447685000	USD
CY2017Q4	bpop	Federal Home Loan Bank Advances And Letters Of Credit Amount Used FederalHomeLoanBankAdvancesAndLettersOfCreditAmountUsed	726000000	USD
CY2017Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	104238159	shares
CY2015	us-gaap	Communication Communication	25146000	USD
CY2016	bpop	Amortization Of Intangibles AmortizationOfIntangibles	12144000	USD
CY2015Q4	bpop	Fdic Indemnification Asset1 FDICIndemnificationAsset1	310221000	USD
CY2016	bpop	Gain Loss On Sales Of Loans Net Including Mortgage Banking Activities GainLossOnSalesOfLoansNetIncludingMortgageBankingActivities	35517000	USD
CY2016	bpop	Reduction In Interest Rate ReductionInInterestRate	1972
CY2016	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax	18691000	USD
CY2016	bpop	Recognition Of Mortgage Servicing Rights On Securitizations Or Asset Transfers RecognitionOfMortgageServicingRightsOnSecuritizationsOrAssetTransfers	10884000	USD
CY2015	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	11019000	USD
CY2015	bpop	Total Financed Sales Of Other Foreclosed And Real Estate Assets TotalFinancedSalesOfOtherForeclosedAndRealEstateAssets	46849000	USD
CY2015	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	1408983000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.02
CY2017Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Liability DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability	0	USD
CY2017Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	10178738000	USD
CY2016	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	11000	USD
CY2017	bpop	Deferred Income Tax Expense Benefit Incluiding Discontinued Operations DeferredIncomeTaxExpenseBenefitIncluidingDiscontinuedOperations	207428000	USD
CY2016	bpop	Net Payments For Repurchase Of Common Stock NetPaymentsForRepurchaseOfCommonStock	563000	USD
CY2016	bpop	Transfers Of Loans To Other Real Estate Owned TransfersOfLoansToOtherRealEstateOwned	117334000	USD
CY2016	bpop	Fdic Reimbursable Expenses FDICReimbursableExpenses	8433000	USD
CY2016	us-gaap	Fair Value Assets And Liabilities Measured On Recurring Basis Gain Loss Included In Earnings FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisGainLossIncludedInEarnings	-58292000	USD
CY2016	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	7437000	USD
CY2016	us-gaap	Asset Management Fees1 AssetManagementFees1	21450000	USD
CY2015	us-gaap	Restructuring Charges RestructuringCharges	18412000	USD
CY2015	bpop	Fdic Loss Share Income FDICLossShareIncome	20062000	USD
CY2016	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	1422055000	USD
CY2017	us-gaap	Equipment Expense EquipmentExpense	65142000	USD
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-350652000	USD
CY2017Q4	bpop	Trades Payables To Brokers And Counterparties TradesPayablesToBrokersAndCounterparties	2000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	205408000	USD
CY2016	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	171033000	USD
CY2016Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	212573000	USD
CY2017	bpop	Financing Receivable Allowance For Charge Offs FinancingReceivableAllowanceForChargeOffs	311575000	USD
CY2016	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	3407779000	USD
CY2016	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	25336000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	39000	USD
CY2016	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	10835000	USD
CY2015	bpop	Income Loss Before Equity In Undistributed Earnings Of Subsidiaries IncomeLossBeforeEquityInUndistributedEarningsOfSubsidiaries	893997000	USD
CY2016Q4	us-gaap	Securities Purchased Under Agreements To Resell Collateral Obligation To Return Cash SecuritiesPurchasedUnderAgreementsToResellCollateralObligationToReturnCash	0	USD
CY2017	bpop	Return Of Capital From Wholly Owned Subsidiaries ReturnOfCapitalFromWhollyOwnedSubsidiaries	0	USD
CY2017Q4	bpop	Change Allowance For Loan Losses Recalibration And Enhancements Of Enviromental Factors Adjustments ChangeAllowanceForLoanLossesRecalibrationAndEnhancementsOfEnviromentalFactorsAdjustments	4900000	USD
CY2016	bpop	Equity In Undistributed Earnings Losses Of Subsidiaries EquityInUndistributedEarningsLossesOfSubsidiaries	0	USD
CY2016Q4	us-gaap	Derivative Assets DerivativeAssets	14094000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	60694000	USD
CY2016	bpop	Fed Funds Asset Sold Maximum Aggregate Balance Outstanding Month End FedFundsAssetSoldMaximumAggregateBalanceOutstandingMonthEnd	954253000	USD
CY2017Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	16598000	USD
CY2016	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	160836000	USD
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	46900000	USD
CY2016	us-gaap	Payments To Acquire Mortgage Servicing Rights Msr PaymentsToAcquireMortgageServicingRightsMSR	0	USD
CY2016	bpop	Fees And Commission Miscellaneous Other FeesAndCommissionMiscellaneousOther	14260000	USD
CY2016	bpop	Equity In Undistributed Earnings Losses Of Discontinued Operations EquityInUndistributedEarningsLossesOfDiscontinuedOperations	0	USD
CY2017Q4	bpop	Loans And Leases Receivable Covered And Not Covered Total Net Of Unearned Income LoansAndLeasesReceivableCoveredAndNotCoveredTotalNetOfUnearnedIncome	24810068000	USD
CY2017	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2016	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	165047000	USD
CY2016	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2017Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	3900000000	USD
CY2016	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	-267205000	USD
CY2016	bpop	Fed Funds Assets Sold Average Monthly Aggregate Balance Outstanding FedFundsAssetsSoldAverageMonthlyAggregateBalanceOutstanding	757230000	USD
CY2015	bpop	Dividend Income From Subsidiaries DividendIncomeFromSubsidiaries	0	USD
CY2017Q4	bpop	Funds Advanced To Investors Under Servicing Agreements FundsAdvancedToInvestorsUnderServicingAgreements	107299000	USD
CY2016Q4	us-gaap	Securities Purchased Under Agreements To Resell Liability SecuritiesPurchasedUnderAgreementsToResellLiability	0	USD
CY2016	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	31162000	USD
CY2016	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	3464
CY2016	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	61643000	USD
CY2015Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	191916000	USD
CY2017	bpop	Fair Value Assets And Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss Total FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLossTotal	-30647000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	26005000	USD
CY2017Q4	bpop	Deferred Tax Liabilities Other Liabilities DeferredTaxLiabilitiesOtherLiabilities	60402000	USD
CY2016Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	111377000	USD
CY2017Q4	us-gaap	Equity Restrictions EquityRestrictions	540000000	USD
CY2017	bpop	Total Financed Sales Of Other Foreclosed And Real Estate Assets TotalFinancedSalesOfOtherForeclosedAndRealEstateAssets	19672000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-13241000	USD
CY2015	bpop	Fees And Commission Debit Cards FeesAndCommissionDebitCards	46176000	USD
CY2016	us-gaap	Occupancy Net OccupancyNet	85653000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesTax	42000	USD
CY2016	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	89887000	USD
CY2017	bpop	Capital Contribution From Parent1 CapitalContributionFromParent1	0	USD
CY2016Q4	bpop	Deferredtaxliabilitiesinvestmentgainloss Deferredtaxliabilitiesinvestmentgainloss	21335000	USD
CY2015	us-gaap	Interest And Dividend Income Securities Trading Or Measured At Fair Value InterestAndDividendIncomeSecuritiesTradingOrMeasuredAtFairValue	11001000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	338511000	USD
CY2017Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	16719000	USD
CY2017	us-gaap	Servicing Asset At Fair Value Other Changes That Affect Balance ServicingAssetAtFairValueOtherChangesThatAffectBalance	0	USD
CY2017	bpop	Net Revenue NetRevenue	1921131000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2017	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	9753000	USD
CY2017	us-gaap	Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Description Of Objectives Methodology And Limitations SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesDescriptionOfObjectivesMethodologyAndLimitations	The sensitivity analyses presented in the tables above for servicing rights are hypothetical and should be used with caution. As the figures indicate, changes in fair value based on a 10 and 20 percent variation in assumptions generally cannot be extrapolated because the relationship of the change in assumption to the change in fair value may not be linear. Also, in the sensitivity tables included herein, the effect of a variation in a particular assumption on the fair value of the retained interest is calculated without changing any other assumption. In reality, changes in one factor may result in changes in another (for example, increases in market interest rates may result in lower prepayments and increased credit losses), which might magnify or counteract the sensitivities.
CY2016	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	2318000	USD
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	111377000	USD
CY2015	us-gaap	Noninterest Income NoninterestIncome	519541000	USD
CY2015	bpop	Other Real Estate Owned Expense Net Of Gain Loss On Sale Or Disposition OtherRealEstateOwnedExpenseNetOfGainLossOnSaleOrDisposition	85568000	USD
CY2016	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	378000	USD
CY2017Q4	bpop	Debt Maturities Repayments Of Principal In Year One DebtMaturitiesRepaymentsOfPrincipalInYearOne	742209000	USD
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1756000	USD
CY2016Q4	bpop	Loans And Leases Receivable Covered And Not Covered Total Net Of Unearned Income LoansAndLeasesReceivableCoveredAndNotCoveredTotalNetOfUnearnedIncome	23346625000	USD
CY2017	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	76392000	USD
CY2017	us-gaap	Noninterest Income NoninterestIncome	419167000	USD
CY2016	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	372776000	USD
CY2016	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	535445000	USD
CY2016	bpop	Recoveries On Covered Assets Subject To Reimbursement To Fdic Mirror Accounting RecoveriesOnCoveredAssetsSubjectToReimbursementToFDICMirrorAccounting	-31338000	USD
CY2016	us-gaap	Fees And Commissions Fiduciary And Trust Activities FeesAndCommissionsFiduciaryAndTrustActivities	18811000	USD
CY2015	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	USD
CY2015	us-gaap	Interest Expense InterestExpense	194031000	USD
CY2017	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	-420000	USD
CY2015	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	78986000	USD
CY2015	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	27626000	USD
CY2017	bpop	Other Real Estate Owned Expense Net Of Gain Loss On Sale Or Disposition OtherRealEstateOwnedExpenseNetOfGainLossOnSaleOrDisposition	48540000	USD
CY2016	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.01
CY2016	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-1409000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	589467000	USD
CY2015	bpop	Revenue From Investment Securities RevenueFromInvestmentSecurities	126064000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	294340000	USD
CY2015Q4	us-gaap	Assets Assets	35761733000	USD
CY2017	bpop	Return Of Capital To Parent Company ReturnOfCapitalToParentCompany	0	USD
CY2016Q4	us-gaap	Securities Purchased Under Agreements To Resell Collateral Obligation To Return Securities SecuritiesPurchasedUnderAgreementsToResellCollateralObligationToReturnSecurities	23637000	USD
CY2016	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	16428000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	230830000	USD
CY2017Q1	bpop	Total Common Shares Repurchased Accelerated Share Repurchase Agreements TotalCommonSharesRepurchasedAcceleratedShareRepurchaseAgreements	1847372	shares
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	300000	USD
CY2015	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-519128000	USD
CY2017	bpop	Capital Contribution Subsidiaries CapitalContributionSubsidiaries	0	USD
CY2015	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	1458706000	USD
CY2016	us-gaap	Labor And Related Expense LaborAndRelatedExpense	487476000	USD
CY2017	us-gaap	Noninterest Expense NoninterestExpense	1257196000	USD
CY2016	bpop	Net Payments From To Fdic Under Loss Sharing Agreements NetPaymentsFromToFDICUnderLossSharingAgreements	98518000	USD
CY2016	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	3723000	USD
CY2016	bpop	Recognized Tax Benefits Current Interest On Income Taxes Accrued RecognizedTaxBenefitsCurrentInterestOnIncomeTaxesAccrued	1200000	USD
CY2015	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2016	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses	22485000	USD
CY2016	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	0	USD
CY2016	bpop	Net Gain Loss On Sale And Valuation Adjustments On Investment Securities NetGainLossOnSaleAndValuationAdjustmentsOnInvestmentSecurities	1962000	USD
CY2017Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Gross DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross	16719000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	340000	USD
CY2015	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	63976000	USD
CY2017	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	11237000	USD
CY2016	bpop	Mortgage Banking Activities MortgageBankingActivities	56538000	USD
CY2016	us-gaap	Taxes Other TaxesOther	42304000	USD
CY2017Q4	us-gaap	Derivative Assets DerivativeAssets	16719000	USD
CY2015	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	1347000	USD
CY2016	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	53014000	USD
CY2016	bpop	Indemnification Asset Reduction IndemnificationAssetReduction	-136197000	USD
CY2017Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	16719000	USD
CY2015	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2016	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.01
CY2016	us-gaap	Interest And Dividend Income Securities Trading Or Measured At Fair Value InterestAndDividendIncomeSecuritiesTradingOrMeasuredAtFairValue	6414000	USD
CY2017	us-gaap	Labor And Related Expense LaborAndRelatedExpense	484230000	USD
CY2015	bpop	Return Of Capital To Parent Company ReturnOfCapitalToParentCompany	0	USD
CY2015	us-gaap	Cash Dividends Paid To Parent Company CashDividendsPaidToParentCompany	0	USD
CY2017	bpop	Marginal Corporate Income Tax Rate MarginalCorporateIncomeTaxRate	0.21	pure
CY2017Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowed	16719000	USD
CY2016	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	8245000	USD
CY2017	us-gaap	Restructuring Charges RestructuringCharges	0	USD
CY2017	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	1176540000	USD
CY2016	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	209000	USD
CY2016Q4	bpop	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Liability Not Offset DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiabilityNotOffset	551000	USD
CY2016	bpop	Return Of Capital To Parent Company ReturnOfCapitalToParentCompany	0	USD
CY2015	bpop	Equity In Undistributed Earnings Losses Of Subsidiaries EquityInUndistributedEarningsLossesOfSubsidiaries	0	USD
CY2017Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	0	USD
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.06
CY2017	bpop	Net Gain Loss And Valuation Adjustments On Investment Securities NetGainLossAndValuationAdjustmentsOnInvestmentSecurities	334000	USD
CY2016Q4	bpop	Fdic Indemnification Asset1 FDICIndemnificationAsset1	69334000	USD
CY2016	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	170016000	USD
CY2017	dei	Amendment Flag AmendmentFlag	false
CY2016	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses	90451000	USD
CY2017	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	1478765000	USD
CY2015	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	3723000	USD
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CY2017	bpop	Limited Period For Fdic Loss Sharing Agreements Covered For Interest Not Collected LimitedPeriodForFDICLossSharingAgreementsCoveredForInterestNotCollected	approximately 90 days
CY2017Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Cash DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnCash	0	USD
CY2016	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	-1482000	USD
CY2016	us-gaap	Proceeds From Sale Of Loans Receivable ProceedsFromSaleOfLoansReceivable	141363000	USD
CY2016	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	7249000	USD
CY2017	bpop	Interest Expense Reduction Due To Expiration Of The Statue Of Limitations InterestExpenseReductionDueToExpirationOfTheStatueOfLimitations	353000	USD
CY2016Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	1372000	USD
CY2016	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	5259000	USD
CY2016	bpop	Transfers Of Loans To Other Property TransfersOfLoansToOtherProperty	28614000	USD
CY2016	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	33413000	USD
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CY2016	us-gaap	Fees And Commissions Credit Cards FeesAndCommissionsCreditCards	70526000	USD
CY2017	bpop	Interest Capitalized Loans Subject Temporary Payment Moratorium InterestCapitalizedLoansSubjectTemporaryPaymentMoratorium	46944000	USD
CY2016	bpop	Transfers Of Financial Assets Accounted For As Sale Initial Fair Value Of Asset Obtained As Proceeds TransfersOfFinancialAssetsAccountedForAsSaleInitialFairValueOfAssetObtainedAsProceeds	785501000	USD
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CY2016	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-1468000	USD
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CY2015	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersOutOfLevel3	0	USD
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CY2016Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Cash DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnCash	0	USD
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CY2017	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	58445000	USD
CY2017	bpop	Income Loss Before Equity In Undistributed Earnings Of Subsidiaries IncomeLossBeforeEquityInUndistributedEarningsOfSubsidiaries	107681000	USD
CY2015	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation And Exercise Of Stock Options AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions	169000	USD
CY2017	us-gaap	Fees And Commissions Other FeesAndCommissionsOther	217267000	USD
CY2016	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	1135000	USD
CY2017	bpop	Noninterest Expense Other NoninterestExpenseOther	1199454000	USD
CY2016	bpop	Dividend Income From Subsidiaries DividendIncomeFromSubsidiaries	0	USD
CY2017Q4	bpop	Realizable Value Of Other Investment Securities RealizableValueOfOtherInvestmentSecurities	170539000	USD
CY2016	bpop	Extension Of Maturity Date ExtensionOfMaturityDate	128
CY2016	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	1252039000	USD
CY2016	bpop	Noncash Transfer To Securities From Loans Resulting From Securitization NoncashTransferToSecuritiesFromLoansResultingFromSecuritization	775612000	USD
CY2016Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	956057000	USD
CY2016Q4	bpop	Fdic Indemnification Asset Net FdicIndemnificationAssetNet	41756000	USD
CY2017Q4	bpop	Fdic Indemnification Asset Net FdicIndemnificationAssetNet	45192000	USD
CY2017Q1	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	75000000	USD
CY2016	bpop	Marginal Corporate Income Tax Rate MarginalCorporateIncomeTaxRate	0.35	pure
CY2014Q4	bpop	Fdic Indemnification Asset1 FDICIndemnificationAsset1	542454000	USD
CY2016	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	3286428000	USD
CY2017	bpop	Transfer To Other Foreclosed TransferToOtherForeclosed	8435000	USD
CY2016	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-334000	USD
CY2016	us-gaap	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	-4788000	USD
CY2015	bpop	Interest Capitalized Loans Subject Temporary Payment Moratorium InterestCapitalizedLoansSubjectTemporaryPaymentMoratorium	0	USD
CY2016Q4	bpop	Balance Due To Fdic BalanceDueToFDIC	-27578000	USD
CY2017Q4	bpop	Receivables From Investment Maturities ReceivablesFromInvestmentMaturities	70000000	USD
CY2017Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Securities DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnSecurities	0	USD
CY2016Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Securities DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnSecurities	23637000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	8.64
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	12261000	USD
CY2017	us-gaap	Interest Expense Deposits InterestExpenseDeposits	141864000	USD
CY2015	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	8.65
CY2015	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	2318000	USD
CY2016	us-gaap	Servicing Asset At Fair Value Other Changes That Affect Balance ServicingAssetAtFairValueOtherChangesThatAffectBalance	-15000	USD
CY2016Q4	us-gaap	Securities Purchased Under Agreements To Resell Gross SecuritiesPurchasedUnderAgreementsToResellGross	23637000	USD
CY2017Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	188855000	USD
CY2017	bpop	Recognized Tax Benefits Current Interest On Income Taxes Accrued RecognizedTaxBenefitsCurrentInterestOnIncomeTaxesAccrued	598000	USD
CY2016	bpop	Accretion Of Fdic Indemnification Asset AccretionOfFDICIndemnificationAsset	-207779000	USD
CY2015	us-gaap	Fees And Commissions Credit Cards FeesAndCommissionsCreditCards	68166000	USD
CY2017Q4	bpop	Deferredtaxliabilitiesinvestmentgainloss Deferredtaxliabilitiesinvestmentgainloss	18403000	USD
CY2015	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	24104000	USD
CY2016	bpop	Noninterest Expense Other NoninterestExpenseOther	1192816000	USD
CY2015	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	226000	USD
CY2017	bpop	Gnma Loans Repurchase Option Change GnmaLoansRepurchaseOptionChange	790942000	USD
CY2015	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	31076000	USD
CY2016	bpop	Valuation Allowance And Reserves Recoveries ValuationAllowanceAndReservesRecoveries	95327000	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	13543000	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	14094000	USD
CY2016Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	103790932	shares
CY2016Q4	us-gaap	Derivative Asset Collateral Obligation To Return Cash Offset DerivativeAssetCollateralObligationToReturnCashOffset	0	USD
CY2016	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	212968000	USD
CY2016Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	2006391	shares
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CY2016	us-gaap	Interest Expense Deposits InterestExpenseDeposits	127577000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.02
CY2015	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersIntoLevel3	0	USD
CY2016Q4	us-gaap	Related Party Deposit Liabilities RelatedPartyDepositLiabilities	328000000	USD
CY2016Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Amount Offset Against Collateral DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral	13543000	USD
CY2016	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersOutOfLevel3	0	USD
CY2016	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-4026000	USD
CY2016	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesBeforeTax	209000	USD
CY2016	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases	0	USD
CY2016	bpop	Other Real Estate Owned Other Adjustments OtherRealEstateOwnedOtherAdjustments	-3446000	USD
CY2016Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Liability DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability	0	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	168358000	USD
CY2017Q4	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	0	USD
CY2016Q4	bpop	Securities Purchased Under Agreements To Resell Not Offset SecuritiesPurchasedUnderAgreementsToResellNotOffset	0	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-3444006000	USD
CY2017	us-gaap	Fees And Commissions Credit Cards FeesAndCommissionsCreditCards	67584000	USD
CY2016	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	12196000	USD
CY2015Q4	bpop	Cash And Due From Banks1 CashAndDueFromBanks1	363674000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-58758000	USD
CY2015	bpop	Gnma Loans Repurchase Option Change GnmaLoansRepurchaseOptionChange	58568000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	514335000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-63400000	USD
CY2016	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-1280000	USD
CY2016	bpop	Related Party Transactions Payments RelatedPartyTransactionsPayments	-30639000	USD
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CY2017Q4	bpop	Debt With No Stated Maturity DebtWithNoStatedMaturity	8000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1100000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	3000000	USD
CY2016	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	791
CY2017	dei	Trading Symbol TradingSymbol	BPOP
CY2016	bpop	Payments To Acquire Advance Payments By Borrowers For Taxes And Insurance PaymentsToAcquireAdvancePaymentsByBorrowersForTaxesAndInsurance	0	USD
CY2015	bpop	Other Adjustments To Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Assets OtherAdjustmentsToFairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssets	0	USD
CY2017	us-gaap	Asset Management Fees1 AssetManagementFees1	21958000	USD
CY2016Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	43379000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax	7289000	USD
CY2016	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	-282719000	USD
CY2016	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	3723000	USD
CY2017	us-gaap	Fees And Commissions Fiduciary And Trust Activities FeesAndCommissionsFiduciaryAndTrustActivities	19972000	USD
CY2016	us-gaap	Increase Decrease In Interest And Dividends Receivable IncreaseDecreaseInInterestAndDividendsReceivable	13808000	USD
CY2016	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	-25514000	USD
CY2017Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	947423000	USD
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CY2015Q4	bpop	Receivables From Investment Maturities ReceivablesFromInvestmentMaturities	0	USD
CY2017Q4	us-gaap	Fdic Indemnification Asset FDICIndemnificationAsset	45192000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	300000	USD
CY2017Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Amount Offset Against Collateral DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral	16598000	USD
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CY2017Q4	bpop	Balance Due To Fdic BalanceDueToFDIC	-1124000	USD
CY2015	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	963000	USD
CY2016	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	8897000	USD
CY2017	bpop	Interest Expense Reduction Due To Settlement InterestExpenseReductionDueToSettlement	505000	USD
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CY2015	bpop	Reclassification Of Other Real Estate Expiration Lsa ReclassificationOfOtherRealEstateExpirationLSA	0	USD
CY2016Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	104058684	shares

Files In Submission

Name	View Source	Status
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$BPOP
POPULAR, INC. Stock $bpop

2017 Q4 Form 10-K Financial Statement

#000119312518066922 Filed on March 01, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BPOP POPULAR, INC. Stock $bpop

2017 Q4 Form 10-K Financial Statement

#000119312518066922 Filed on March 01, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BPOP
POPULAR, INC. Stock $bpop