SEGMENT INFORMATION - revenues and selected balance sheet data by geography based on the location (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Revenues		$ 673,246	$ 686,894	$ 695,297
Total assets		11,922,455	12,573,019
Loans		8,886,873	9,112,382
Deposits		8,831,205	9,338,124
Brokered CDs allocated to Puerto Rico operations		1,439,697	2,097,483
P R
Segment Reporting Information [Line Items]
Revenues		568,180	575,016	588,744
Total assets		9,765,530	10,648,179	10,969,305
Loans		6,926,719	7,332,274	7,544,845
Deposits	[1]	6,291,353	6,747,638	6,687,844
Brokered CDs allocated to Puerto Rico operations		1,400,000	2,100,000	3,100,000
U S
Segment Reporting Information [Line Items]
Revenues		60,607	61,879	58,979
Total assets		1,499,548	1,202,318	1,072,962
Loans		1,382,440	1,125,501	982,713
Deposits	[2]	1,564,839	1,606,723	1,836,430
V I
Segment Reporting Information [Line Items]
Revenues		44,459	49,999	47,574
Total assets		657,377	722,522	685,568
Loans		627,720	690,476	649,813
Deposits		$ 975,013	$ 983,763	$ 959,671

[1] For 2016, 2015, and 2014, includes $1.4 billion, $2.1 billion, and $2.9 billion, respectively, of brokered CDs allocated to Puerto Rico operations.

[2] For 2016 includes $60.1 million of brokered CDs allocated to the United States operations.