Note Loans (Loans in non-performing status and accruing loans past-due 90 days or more by loan class) (Detail) - Non Covered Loans - USD ($) $ in Thousands	Mar. 31, 2017		Dec. 31, 2016
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	$ 575,613	[1]	$ 557,915	[2]
Accruing loans past-due 90 days or more	408,346		426,652
Commercial multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	777		870
Accruing loans past-due 90 days or more	0		0
CRE non-owner occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	24,888		25,806
Accruing loans past-due 90 days or more	0		0
CRE owner occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	105,712		103,243
Accruing loans past-due 90 days or more	0		0
Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	47,864		33,429
Accruing loans past-due 90 days or more	278		538
Mortgages
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	331,339	[3],[4]	329,907	[5],[6]
Accruing loans past-due 90 days or more	387,641	[3],[4]	406,583	[5],[6]
Leasing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	2,444		3,062
Accruing loans past-due 90 days or more	0		0
Legacy
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	3,335		3,337
Accruing loans past-due 90 days or more	0		0
Consumer | Credit cards
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	35		30
Accruing loans past-due 90 days or more	19,330		18,725
Consumer | Home equity lines of credit
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	5,801		4,762
Accruing loans past-due 90 days or more	572		185
Consumer | Personal
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	21,769		22,417
Accruing loans past-due 90 days or more	9		34
Consumer | Auto
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	12,685		12,320
Accruing loans past-due 90 days or more	0		0
Consumer | Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	18,964		18,732
Accruing loans past-due 90 days or more	516		587
PUERTO RICO
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	548,385	[1]	532,508	[2]
Accruing loans past-due 90 days or more	408,346		426,652
PUERTO RICO | Commercial multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	578		664
Accruing loans past-due 90 days or more	0		0
PUERTO RICO | CRE non-owner occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	23,259		24,611
Accruing loans past-due 90 days or more	0		0
PUERTO RICO | CRE owner occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	104,950		102,771
Accruing loans past-due 90 days or more	0		0
PUERTO RICO | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	46,690		31,609
Accruing loans past-due 90 days or more	278		538
PUERTO RICO | Mortgages
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	319,450	[3],[4]	318,194	[5],[6]
Accruing loans past-due 90 days or more	387,641	[3],[4]	406,583	[5],[6]
PUERTO RICO | Leasing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	2,444		3,062
Accruing loans past-due 90 days or more	0		0
PUERTO RICO | Legacy
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	0		0
Accruing loans past-due 90 days or more	0		0
PUERTO RICO | Consumer | Credit cards
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	0		0
Accruing loans past-due 90 days or more	19,330		18,725
PUERTO RICO | Consumer | Home equity lines of credit
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	0		0
Accruing loans past-due 90 days or more	572		185
PUERTO RICO | Consumer | Personal
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	19,365		20,553
Accruing loans past-due 90 days or more	9		34
PUERTO RICO | Consumer | Auto
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	12,685		12,320
Accruing loans past-due 90 days or more	0		0
PUERTO RICO | Consumer | Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	18,964		18,724
Accruing loans past-due 90 days or more	516		587
UNITED STATES
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	27,228	[1]	25,407	[2]
Accruing loans past-due 90 days or more	0		0
UNITED STATES | Commercial multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	199		206
Accruing loans past-due 90 days or more	0		0
UNITED STATES | CRE non-owner occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	1,629		1,195
Accruing loans past-due 90 days or more	0		0
UNITED STATES | CRE owner occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	762		472
Accruing loans past-due 90 days or more	0		0
UNITED STATES | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	1,174		1,820
Accruing loans past-due 90 days or more	0		0
UNITED STATES | Mortgages
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	11,889	[3],[4]	11,713	[5],[6]
Accruing loans past-due 90 days or more	0	[3],[4]	0	[5],[6]
UNITED STATES | Leasing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	0		0
Accruing loans past-due 90 days or more	0		0
UNITED STATES | Legacy
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	3,335		3,337
Accruing loans past-due 90 days or more	0		0
UNITED STATES | Consumer | Credit cards
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	35		30
Accruing loans past-due 90 days or more	0		0
UNITED STATES | Consumer | Home equity lines of credit
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	5,801		4,762
Accruing loans past-due 90 days or more	0		0
UNITED STATES | Consumer | Personal
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	2,404		1,864
Accruing loans past-due 90 days or more	0		0
UNITED STATES | Consumer | Auto
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	0		0
Accruing loans past-due 90 days or more	0		0
UNITED STATES | Consumer | Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	0		8
Accruing loans past-due 90 days or more	$ 0		$ 0

[1] For purposes of this table non-performing loans exclude non-performing loans held-for-sale.

[2] For purposes of this table non-performing loans exclude non-performing loans held-for-sale.

[3] It is the Corporation’s policy to report delinquent residential mortgage loans insured by FHA or guar anteed by the VA as accruing loans past due 90 days or more as opposed to non-performing since the principal repayment is insured. These balances include $ 173 million of residential mortgage loans in Puerto Rico insured by FHA or guaranteed by the VA that are no longer accruing interest as of March 31, 2017 . Furthermore, the Co rporation has approximately $ 59 million in reverse mortgage loans in Puerto Rico which are guaranteed by FHA, but which are currently not accruing interest. Due to the guaranteed nature of the loans, it is the Corporation’s policy to exclude these balances from non-performing assets .

[4] Non-covered loans of $ 194 million accounted for under ASC Subtopic 310-30 are excluded from the above table as they are considered to be performing due to the application of the accretion method, in which these loans will accrete interest income over the remaining life of the loans using estimated cash flow analysis.

[5] It is the Corporation’s policy to report delinque nt residential mortgage loans insured by FHA or guaranteed by the VA as accruing loans past due 90 days or more as opposed to non-performing since the principal repayment is insured. These balances include $ 181 million of residential mortgage loans in Puer to Rico insured by FHA or guaranteed by the VA that are no longer accruing interest as of December 31, 2016 . Furthermore, the Corporation has approximately $68 million in reverse mortgage loans in Puerto Rico which are guaranteed by FHA, but which are currently not accruing interest. Due to the guaranteed nature of the loans, it is the Corporation’s policy to exclude these balances from non-performing assets .

[6] Non-covered loans by $ 215 million accounted for under ASC Subtopic 310-30 are excluded from the above table as they are considered to be performing due to the application of the accretion method, in which these loans will accrete interest income over the remaining life of the loans using estimated cash flow analysis.