T D R that subsequently defaulted (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014 loans		Mar. 31, 2013 loans
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	250		244
Financing Receivable Modifications That Defaulted	$ 8,157		$ 12,683
Commercial Multi Family [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	0		0
Financing Receivable Modifications That Defaulted	0		0
Commercial Real Estate Non Owner Occupied [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	2		1
Financing Receivable Modifications That Defaulted	937		1,139
Commercial Real Estate Owner Occupied [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	2		0
Financing Receivable Modifications That Defaulted	333		0
Commercial And Industrial Loans [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	3		1
Financing Receivable Modifications That Defaulted	171		932
Commercial Real Estate Construction Financing Receivable Member
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	0		0
Financing Receivable Modifications That Defaulted	0		0
Mortgages [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	19		63
Financing Receivable Modifications That Defaulted	4,445		8,871
Legacy [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	0		0
Financing Receivable Modifications That Defaulted	0		0
Finance Leases Portfolio Segment Member
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	2		7
Financing Receivable Modifications That Defaulted	64		44
Consumer Credit Card Financing Receivable [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	178		131
Financing Receivable Modifications That Defaulted	1,642		1,120
Home Equity Line of Credit [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	0		0
Financing Receivable Modifications That Defaulted	0		0
Personal [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	37		41
Financing Receivable Modifications That Defaulted	443		577
Consumer Loans Auto Financing Receivable [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	5		0
Financing Receivable Modifications That Defaulted	118		0
Consumer Other Financing Receivable Member
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	2		0
Financing Receivable Modifications That Defaulted	4		0
PUERTO RICO
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	249	[1]	243	[1]
Financing Receivable Modifications That Defaulted	7,250	[1]	11,544	[1]
PUERTO RICO | Commercial Multi Family [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	0		0
Financing Receivable Modifications That Defaulted	0		0
PUERTO RICO | Commercial Real Estate Non Owner Occupied [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	1		0
Financing Receivable Modifications That Defaulted	30		0
PUERTO RICO | Commercial Real Estate Owner Occupied [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	2		0
Financing Receivable Modifications That Defaulted	333		0
PUERTO RICO | Commercial And Industrial Loans [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	3		1
Financing Receivable Modifications That Defaulted	171		932
PUERTO RICO | Commercial Real Estate Construction Financing Receivable Member
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	0		0
Financing Receivable Modifications That Defaulted	0		0
PUERTO RICO | Mortgages [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	19		63
Financing Receivable Modifications That Defaulted	4,445		8,871
PUERTO RICO | Finance Leases Portfolio Segment Member
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	2		7
Financing Receivable Modifications That Defaulted	64		44
PUERTO RICO | Consumer Credit Card Financing Receivable [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	178		131
Financing Receivable Modifications That Defaulted	1,642		1,120
PUERTO RICO | Home Equity Line of Credit [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	0		0
Financing Receivable Modifications That Defaulted	0		0
PUERTO RICO | Personal [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	37		41
Financing Receivable Modifications That Defaulted	443		577
PUERTO RICO | Consumer Loans Auto Financing Receivable [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	5		0
Financing Receivable Modifications That Defaulted	118		0
PUERTO RICO | Consumer Other Financing Receivable Member
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	2		0
Financing Receivable Modifications That Defaulted	4		0
UNITED STATES
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	1		1
Financing Receivable Modifications That Defaulted	907		1,139
UNITED STATES | Commercial Multi Family [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	0		0
Financing Receivable Modifications That Defaulted	0		0
UNITED STATES | Commercial Real Estate Non Owner Occupied [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	1		1
Financing Receivable Modifications That Defaulted	907		1,139
UNITED STATES | Commercial Real Estate Owner Occupied [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	0		0
Financing Receivable Modifications That Defaulted	0		0
UNITED STATES | Commercial And Industrial Loans [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	0		0
Financing Receivable Modifications That Defaulted	0		0
UNITED STATES | Commercial Real Estate Construction Financing Receivable Member
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	0		0
Financing Receivable Modifications That Defaulted	0		0
UNITED STATES | Mortgages [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	0		0
Financing Receivable Modifications That Defaulted	0		0
UNITED STATES | Legacy [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	0		0
Financing Receivable Modifications That Defaulted	0		0
UNITED STATES | Consumer Credit Card Financing Receivable [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	0		0
Financing Receivable Modifications That Defaulted	0		0
UNITED STATES | Home Equity Line of Credit [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	0		0
Financing Receivable Modifications That Defaulted	0		0
UNITED STATES | Personal [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	0		0
Financing Receivable Modifications That Defaulted	0		0
UNITED STATES | Consumer Loans Auto Financing Receivable [Member]
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	0		0
Financing Receivable Modifications That Defaulted	0		0
UNITED STATES | Consumer Other Financing Receivable Member
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
Modifications Number of Contracts that Default	0		0
Financing Receivable Modifications That Defaulted	$ 0		$ 0

[1] Excludes loans for which the Corporation has entered into liquidation agreements with borrowers and guarantors and is accepting payments which differ from the contractual payment schedule. The Corporation considers these as defaulted loans and does not intent to return them to accrual status.