Amount of loans acquired at the acquisition date.

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- Definition

Recalibration and updates of the enviromental factors adjustments.

+ References

No definition available.

+ Details

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- Definition

Historical loss period used to compute the base net loss rate in the determination for the general reserves of the allowance for loan losses.

+ References

No definition available.

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- Definition

The increase in the Watch category for Puerto Rico commercial loans.

+ References

No definition available.

+ Details

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- Definition

Recent loss trend adjustment replaces the base loss rate, when these trends are higher than the respective base loss rates, up to a determined cap. The objective of this adjustment is to include information about recent increases in loss rates in a timely and prudent manner.

+ References

No definition available.

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- Definition

Percentage of the ALLL for our loan portfolios that utilized the recent loss trend adjustment instead of the base loss.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=82895541&loc=d3e18845-111554

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- Definition

Reflects the unfunded portion of contractual agreements to lend funds to borrowers for loans whose terms have been modified by troubled debt restructuring.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82895541&loc=d3e18794-111554

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Note Allowance for loan losses (Allowance for loan losses - Additional Information) (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Aug. 01, 2018	Dec. 31, 2017
Financing Receivable, Modifications [Line Items]
Recent Loss Trend Adjustment	12-months
Increase Watch Category Puerto Rico	$ 581,000
Reliable Financial Services
Financing Receivable, Modifications [Line Items]
Loans			$ 1,785,958
Reliable Financial Services \| Commercial Loans
Financing Receivable, Modifications [Line Items]
Loans			$ 341,000
Popular U.S.
Financing Receivable, Modifications [Line Items]
Recent Loss Trend Adjustment Percentage	6.00%	5.00%
Non Covered Loans
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings	$ 1,431,012			$ 1,258,327
Non Covered Loans \| Banco Popular de Puerto Rico
Financing Receivable, Modifications [Line Items]
Recent Loss Trend Adjustment Percentage	80.00%	45.00%
Commercial \| Non Covered Loans
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings	$ 319,446			220,846
Mortgage and consumer
Financing Receivable, Modifications [Line Items]
Historical Loss Period	18-months
Commercial and construction
Financing Receivable, Modifications [Line Items]
Historical Loss Period	5-year
Mortgages \| Non Covered Loans
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings	$ 997,362			930,076
Mortgages \| Non Covered Loans \| Guaranteed By US Sponsored Entities
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings	503,000			449,000
Loan
Financing Receivable, Modifications [Line Items]
Change Allowance For Loan Losses Recalibration And Updates Of The Enviromental Factors Adjustments	6,100
Loan \| Popular U.S.
Financing Receivable, Modifications [Line Items]
Change Allowance For Loan Losses Recalibration And Updates Of The Enviromental Factors Adjustments	200
Loan \| Non Covered Loans \| Banco Popular de Puerto Rico
Financing Receivable, Modifications [Line Items]
Change Allowance For Loan Losses Recalibration And Updates Of The Enviromental Factors Adjustments	5,900
Loan \| Commercial
Financing Receivable, Modifications [Line Items]
Outstanding commitments to lend additional funds to debtors owing receivables whose terms have been modified in troubled debt restructurings	$ 17,000			$ 8,000