LOAN PORTFOLIO -Changes in Carrying Amount Of Purchased Credit Impaired Loans (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014
Financing Receivable Impaired [Line Items]
Beggining balance: purchased credit-impaired loans		$ 173,913	[1]	$ 102,604
Additions	[2]	0		79,889
Accretion recognized in earnings		11,533		11,188
Purchased Credit Impaired Loans Principal Collections		(17,184)		(19,572)
Purchased Credit Impaired Loans Foreclosures		(2,444)		(196)
Ending balance: purchased credit-impaired loans		165,818	[3]	173,913	[1]
Allowance for losses purchased credit impaired		(6,857)		(3,962)		$ 0
Purchased Credit Impaired Loans, Net		$ 158,961		$ 169,951

[1] According to the Corporation's delinquency policy and consistent with the instructions for the preparation of the Consolidated Financial Statements for Bank Holding Companies (FR Y-9C) required by the Federal Reserve Board, residential mortgage and commercial mortgage loans are considered past due when the borrower is in arrears two or more monthly payments. PCI residential mortgage loans past due 30-59 days as of December 31, 2015 amounted to $23.6 million.

[2] For the year ended December 31, 2015, additions represents the estimated fair value of PCI loans acquired from Doral Bank at the date of acquisition.

[3] According to the Corporation's delinquency policy and consistent with the instructions for the preparation of the Consolidated Financial Statements for Bank Holding Companies (FR Y-9C) required by the Federal Reserve Board, residential mortgage and commercial mortgage loans are considered past due when the borrower is in arrears two or more monthly payments. PCI residential mortgage loans and commercial mortgage loans past due 30-59 days as of December 31, 2016 amounted to $22.3 million and $0.1 million, respectively.