LOAN PORTFOLIO - Loans Held for Investment on Which Accrual of Interest Income had been Discontinued (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014		Dec. 31, 2013
Non-performing loans:
Total non-performing loans held for investment	$ 559,516	[1],[2],[3]	$ 495,549	[1],[2],[3]
Residential Mortgage [Member]
Non-performing loans:
Total non-performing loans held for investment	185,025		161,441
Commercial Mortgage [Member]
Non-performing loans:
Total non-performing loans held for investment	169,967		120,107
Commercial And Industrial [Member]
Non-performing loans:
Total non-performing loans held for investment	130,917		114,833
Consumer Auto Loans [Member]
Non-performing loans:
Total non-performing loans held for investment	22,925		21,316
Finance Leases [Member]
Non-performing loans:
Total non-performing loans held for investment	4,501		3,082
Consumer Retail Banking [Member]
Non-performing loans:
Total non-performing loans held for investment	16,070		15,904
Residential Construction [Member]
Non-performing loans:
Total non-performing loans held for investment	13,849		27,108
Commercial Construction [Member]
Non-performing loans:
Total non-performing loans held for investment	0		3,924
Land Construction [Member]
Non-performing loans:
Total non-performing loans held for investment	$ 16,262		$ 27,834

[1] Amount excludes PCI loans with a carrying value of approximately $104.3 million and $4.8 million as of September 30, 2014 and December 31, 2013, respectively, primarily mortgage loans acquired from Doral in the 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 estimated cash flow analysis.

[2] Non-performing loans exclude $485.1 million and $425.4 million of Trouble Debt Restructuring loans that are in compliance with modified terms and in accrual status as of September 30, 2014 and December 31, 2013, respectively.

[3] As of September 30, 2014 and December 31, 2013, excludes $54.6 million and $54.8 million, respectively, of non-performing loans held for sale.