LOAN PORTFOLIO - Loans Held for Investment on Which Accrual of Interest Income had been Discontinued (Detail) - USD ($) $ in Thousands		Sep. 30, 2017	Dec. 31, 2016
Non-performing loans:
Total non-performing loans held for investment	[1],[2],[3]	$ 473,132	$ 560,094
Residential Mortgage [Member]
Non-performing loans:
Total non-performing loans held for investment		178,530	160,867
Commercial Mortgage [Member]
Non-performing loans:
Total non-performing loans held for investment		137,059	178,696
Commercial And Industrial [Member]
Non-performing loans:
Total non-performing loans held for investment		84,317	146,599
Consumer Auto Loans [Member]
Non-performing loans:
Total non-performing loans held for investment		15,809	14,346
Finance Leases [Member]
Non-performing loans:
Total non-performing loans held for investment		1,888	1,335
Consumer Retail Banking [Member]
Non-performing loans:
Total non-performing loans held for investment		26,500
Residential Construction [Member]
Non-performing loans:
Total non-performing loans held for investment		701	1,933
Commercial Construction [Member]
Non-performing loans:
Total non-performing loans held for investment		35,519	36,893
Land Construction [Member]
Non-performing loans:
Total non-performing loans held for investment		10,500	11,026
Other Consumer Loans [Member]
Non-performing loans:
Total non-performing loans held for investment		$ 8,809	$ 8,399

[1] Amount excludes purchased-credit impaired ("PCI") loans with a carrying value of approximately $157.8 million and $165.8 million as of September 30, 2017 and December 31, 2016, respectively, primarily mortgage loans acquired from Doral Bank in the first quarter of 2015 and from Doral Financial 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 an estimated cash flow analysis.

[2] Excludes $8.3 million and $8.1 million of non-performing loans held for sale as of September 30, 2017 and December 31, 2016, respectively.

[3] Non-performing loans exclude $388.8 million and $384.9 million of Troubled Debt Restructuring ("TDR") loans that are in compliance with modified terms and in accrual status as of September 30, 2017 and December 31, 2016, respectively.