LOAN PORTFOLIO - Loans Held for Investment on Which Accrual of Interest Income had been Discontinued (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015		Dec. 31, 2014
Non-performing loans:
Total non-performing loans held for investment	$ 563,544	[1],[2],[3]	$ 523,896	[1],[2],[3]
Residential Mortgage [Member]
Non-performing loans:
Total non-performing loans held for investment	172,583		180,707
Commercial Mortgage [Member]
Non-performing loans:
Total non-performing loans held for investment	142,385		148,473
Commercial And Industrial [Member]
Non-performing loans:
Total non-performing loans held for investment	186,500		122,547
Consumer Auto Loans [Member]
Non-performing loans:
Total non-performing loans held for investment	19,043		22,276
Finance Leases [Member]
Non-performing loans:
Total non-performing loans held for investment	2,979		5,245
Consumer Retail Banking [Member]
Non-performing loans:
Total non-performing loans held for investment	12,891		15,294
Residential Construction [Member]
Non-performing loans:
Total non-performing loans held for investment	13,072		14,324
Commercial Construction [Member]
Non-performing loans:
Total non-performing loans held for investment	0		0
Land Construction [Member]
Non-performing loans:
Total non-performing loans held for investment	$ 14,091		$ 15,030

[1] As of March 31, 2015 and December 31, 2014, excludes $54.6 million of non-performing loans held for sale.

[2] Amount excludes purchased-credit impaired ("PCI") loans with a carrying value of approximately $181.1 million and $102.6 million as of March 31, 2015 and December 31, 2014, respectively, primarily mortgage loans acquired from Doral Bank in the first quarter of 2015 and second quarter of 2014, as further discussed below. These loans are not considered non-performing due to the application of the accretion method, under which these loans will accrete interest income over the remaining life of the loans using an estimated cash flow analysis.

[3] Non-performing loans exclude $434.2 million and $494.6 million of Troubled Debt Restructuring ("TDR") loans that are in compliance with the modified terms and in accrual status as of March 31, 2015 and December 31, 2014, respectively.