LOANS HELD FOR INVESTMENT - Corporation's Commercial and Construction Loans by Portfolio Classes and by Origination Year Based on the Internal Credit Risk Category (Detail) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Financing Receivable Recorded Investment [Line Items]
Loans held for investment	$ 9,366,216	$ 9,002,205
Puerto Rico and Virgin Islands regions [Member]
Financing Receivable Recorded Investment [Line Items]
Loans held for investment	7,356,082	7,128,277
Florida region [Member]
Financing Receivable Recorded Investment [Line Items]
Loans held for investment	2,010,134	1,873,928
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	515,808
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	581,844
Financing Receivable, Originated Two Years before Latest Fiscal Year	324,680
Financing Receivable, Originated Three Years before Latest Fiscal Year	260,629
Financing Receivable, Originated Four Years before Latest Fiscal Year	75,117
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	305,925
Financing Receivable, Revolving	483,809
Loans held for investment	2,547,812	2,230,876
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member] \| Puerto Rico and Virgin Islands regions [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	320,640
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	239,201
Financing Receivable, Originated Two Years before Latest Fiscal Year	204,833
Financing Receivable, Originated Three Years before Latest Fiscal Year	156,682
Financing Receivable, Originated Four Years before Latest Fiscal Year	62,858
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	242,694
Financing Receivable, Revolving	379,621
Loans held for investment	1,606,529	1,391,413
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member] \| Florida region [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	195,168
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	342,643
Financing Receivable, Originated Two Years before Latest Fiscal Year	119,847
Financing Receivable, Originated Three Years before Latest Fiscal Year	103,947
Financing Receivable, Originated Four Years before Latest Fiscal Year	12,259
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	63,231
Financing Receivable, Revolving	104,188
Loans held for investment	941,283	839,463
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member] \| Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	477,018
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	541,011
Financing Receivable, Originated Two Years before Latest Fiscal Year	303,507
Financing Receivable, Originated Three Years before Latest Fiscal Year	234,515
Financing Receivable, Originated Four Years before Latest Fiscal Year	73,426
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	245,142
Financing Receivable, Revolving	471,290
Loans held for investment	2,345,909	2,159,501
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member] \| Pass [Member] \| Puerto Rico and Virgin Islands regions [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	320,640
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	239,121
Financing Receivable, Originated Two Years before Latest Fiscal Year	201,537
Financing Receivable, Originated Three Years before Latest Fiscal Year	136,879
Financing Receivable, Originated Four Years before Latest Fiscal Year	61,167
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	183,641
Financing Receivable, Revolving	367,102
Loans held for investment	1,510,087	1,321,804
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member] \| Pass [Member] \| Florida region [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	156,378
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	301,890
Financing Receivable, Originated Two Years before Latest Fiscal Year	101,970
Financing Receivable, Originated Three Years before Latest Fiscal Year	97,636
Financing Receivable, Originated Four Years before Latest Fiscal Year	12,259
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	61,501
Financing Receivable, Revolving	104,188
Loans held for investment	835,822	837,697
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member] \| Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	38,790
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	40,753
Financing Receivable, Originated Two Years before Latest Fiscal Year	18,475
Financing Receivable, Originated Three Years before Latest Fiscal Year	7,658
Financing Receivable, Originated Four Years before Latest Fiscal Year	83
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	38,538
Financing Receivable, Revolving	6,736
Loans held for investment	151,033	39,327
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member] \| Special Mention [Member] \| Puerto Rico and Virgin Islands regions [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	598
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,347
Financing Receivable, Originated Four Years before Latest Fiscal Year	83
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	38,538
Financing Receivable, Revolving	6,736
Loans held for investment	47,302	39,327
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member] \| Special Mention [Member] \| Florida region [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	38,790
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	40,753
Financing Receivable, Originated Two Years before Latest Fiscal Year	17,877
Financing Receivable, Originated Three Years before Latest Fiscal Year	6,311
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Loans held for investment	103,731	0
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member] \| Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	80
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,698
Financing Receivable, Originated Three Years before Latest Fiscal Year	18,456
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,608
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	22,245
Financing Receivable, Revolving	5,783
Loans held for investment	50,870	29,031
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member] \| Substandard [Member] \| Puerto Rico and Virgin Islands regions [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	80
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,698
Financing Receivable, Originated Three Years before Latest Fiscal Year	18,456
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,608
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	20,515
Financing Receivable, Revolving	5,783
Loans held for investment	49,140	27,265
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member] \| Substandard [Member] \| Florida region [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,730
Financing Receivable, Revolving	0
Loans held for investment	1,730	1,766
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member] \| Doubtful [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Loans held for investment	0	2,768
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member] \| Doubtful [Member] \| Puerto Rico and Virgin Islands regions [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Loans held for investment	0	2,768
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member] \| Doubtful [Member] \| Florida region [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Loans held for investment	0	0
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member] \| Loss [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Loans held for investment	0	249
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member] \| Loss [Member] \| Puerto Rico and Virgin Islands regions [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Loans held for investment	0	249
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member] \| Loss [Member] \| Florida region [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Loans held for investment	0	0
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	100,938
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	411,358
Financing Receivable, Originated Two Years before Latest Fiscal Year	251,256
Financing Receivable, Originated Three Years before Latest Fiscal Year	210,730
Financing Receivable, Originated Four Years before Latest Fiscal Year	142,218
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	314,989
Financing Receivable, Revolving	23,594
Loans held for investment	1,455,083	1,444,586
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| Puerto Rico and Virgin Islands regions [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	88,750
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	298,938
Financing Receivable, Originated Two Years before Latest Fiscal Year	201,311
Financing Receivable, Originated Three Years before Latest Fiscal Year	139,152
Financing Receivable, Originated Four Years before Latest Fiscal Year	90,128
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	266,500
Financing Receivable, Revolving	6
Loans held for investment	1,084,785	1,079,900
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| Florida region [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	12,188
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	112,420
Financing Receivable, Originated Two Years before Latest Fiscal Year	49,945
Financing Receivable, Originated Three Years before Latest Fiscal Year	71,578
Financing Receivable, Originated Four Years before Latest Fiscal Year	52,090
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	48,489
Financing Receivable, Revolving	23,588
Loans held for investment	370,298	364,686
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	100,938
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	311,344
Financing Receivable, Originated Two Years before Latest Fiscal Year	191,430
Financing Receivable, Originated Three Years before Latest Fiscal Year	104,216
Financing Receivable, Originated Four Years before Latest Fiscal Year	122,115
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	234,526
Financing Receivable, Revolving	18,756
Loans held for investment	1,083,325	1,255,668
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| Pass [Member] \| Puerto Rico and Virgin Islands regions [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	88,750
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	218,043
Financing Receivable, Originated Two Years before Latest Fiscal Year	148,209
Financing Receivable, Originated Three Years before Latest Fiscal Year	48,055
Financing Receivable, Originated Four Years before Latest Fiscal Year	80,783
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	201,990
Financing Receivable, Revolving	6
Loans held for investment	785,836	891,298
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| Pass [Member] \| Florida region [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	12,188
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	93,301
Financing Receivable, Originated Two Years before Latest Fiscal Year	43,221
Financing Receivable, Originated Three Years before Latest Fiscal Year	56,161
Financing Receivable, Originated Four Years before Latest Fiscal Year	41,332
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	32,536
Financing Receivable, Revolving	18,750
Loans held for investment	297,489	364,370
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	99,888
Financing Receivable, Originated Two Years before Latest Fiscal Year	59,826
Financing Receivable, Originated Three Years before Latest Fiscal Year	106,514
Financing Receivable, Originated Four Years before Latest Fiscal Year	19,421
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	27,039
Financing Receivable, Revolving	4,838
Loans held for investment	317,526	13,080
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| Special Mention [Member] \| Puerto Rico and Virgin Islands regions [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	80,769
Financing Receivable, Originated Two Years before Latest Fiscal Year	53,102
Financing Receivable, Originated Three Years before Latest Fiscal Year	91,097
Financing Receivable, Originated Four Years before Latest Fiscal Year	8,663
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	11,406
Financing Receivable, Revolving	0
Loans held for investment	245,037	13,080
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| Special Mention [Member] \| Florida region [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	19,119
Financing Receivable, Originated Two Years before Latest Fiscal Year	6,724
Financing Receivable, Originated Three Years before Latest Fiscal Year	15,417
Financing Receivable, Originated Four Years before Latest Fiscal Year	10,758
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	15,633
Financing Receivable, Revolving	4,838
Loans held for investment	72,489	0
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	126
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	682
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	53,424
Financing Receivable, Revolving	0
Loans held for investment	54,232	175,838
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| Substandard [Member] \| Puerto Rico and Virgin Islands regions [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	126
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	682
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	53,104
Financing Receivable, Revolving	0
Loans held for investment	53,912	175,522
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| Substandard [Member] \| Florida region [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	320
Financing Receivable, Revolving	0
Loans held for investment	320	316
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| Doubtful [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Loans held for investment	0	0
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| Doubtful [Member] \| Puerto Rico and Virgin Islands regions [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Loans held for investment	0	0
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| Doubtful [Member] \| Florida region [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Loans held for investment	0	0
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| Loss [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Loans held for investment	0	0
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| Loss [Member] \| Puerto Rico and Virgin Islands regions [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Loans held for investment	0	0
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| Loss [Member] \| Florida region [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Loans held for investment	0	0
Commercial Portfolio Segment [Member] \| Construction Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	52,474
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	27,888
Financing Receivable, Originated Two Years before Latest Fiscal Year	55,383
Financing Receivable, Originated Three Years before Latest Fiscal Year	23,885
Financing Receivable, Originated Four Years before Latest Fiscal Year	7,166
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	8,339
Financing Receivable, Revolving	2,642
Loans held for investment	177,777	111,317
Commercial Portfolio Segment [Member] \| Construction Loans [Member] \| Puerto Rico and Virgin Islands regions [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	7,046
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	17,188
Financing Receivable, Originated Two Years before Latest Fiscal Year	8,122
Financing Receivable, Originated Three Years before Latest Fiscal Year	14,945
Financing Receivable, Originated Four Years before Latest Fiscal Year	7,166
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	8,339
Financing Receivable, Revolving	0
Loans held for investment	62,806	48,246
Commercial Portfolio Segment [Member] \| Construction Loans [Member] \| Florida region [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	45,428
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	10,700
Financing Receivable, Originated Two Years before Latest Fiscal Year	47,261
Financing Receivable, Originated Three Years before Latest Fiscal Year	8,940
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	2,642
Loans held for investment	114,971	63,071
Commercial Portfolio Segment [Member] \| Construction Loans [Member] \| Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	52,474
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	26,232
Financing Receivable, Originated Two Years before Latest Fiscal Year	53,492
Financing Receivable, Originated Three Years before Latest Fiscal Year	23,885
Financing Receivable, Originated Four Years before Latest Fiscal Year	2,016
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	3,903
Financing Receivable, Revolving	2,642
Loans held for investment	164,644	98,751
Commercial Portfolio Segment [Member] \| Construction Loans [Member] \| Pass [Member] \| Puerto Rico and Virgin Islands regions [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	7,046
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	15,532
Financing Receivable, Originated Two Years before Latest Fiscal Year	6,231
Financing Receivable, Originated Three Years before Latest Fiscal Year	14,945
Financing Receivable, Originated Four Years before Latest Fiscal Year	2,016
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	3,903
Financing Receivable, Revolving	0
Loans held for investment	49,673	35,680
Commercial Portfolio Segment [Member] \| Construction Loans [Member] \| Pass [Member] \| Florida region [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	45,428
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	10,700
Financing Receivable, Originated Two Years before Latest Fiscal Year	47,261
Financing Receivable, Originated Three Years before Latest Fiscal Year	8,940
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	2,642
Loans held for investment	114,971	63,071
Commercial Portfolio Segment [Member] \| Construction Loans [Member] \| Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	770
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Loans held for investment	770	0
Commercial Portfolio Segment [Member] \| Construction Loans [Member] \| Special Mention [Member] \| Puerto Rico and Virgin Islands regions [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	770
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Loans held for investment	770	0
Commercial Portfolio Segment [Member] \| Construction Loans [Member] \| Special Mention [Member] \| Florida region [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Loans held for investment	0	0
Commercial Portfolio Segment [Member] \| Construction Loans [Member] \| Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	886
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,891
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	5,150
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	4,436
Financing Receivable, Revolving	0
Loans held for investment	12,363	12,566
Commercial Portfolio Segment [Member] \| Construction Loans [Member] \| Substandard [Member] \| Puerto Rico and Virgin Islands regions [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	886
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,891
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	5,150
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	4,436
Financing Receivable, Revolving	0
Loans held for investment	12,363	12,566
Commercial Portfolio Segment [Member] \| Construction Loans [Member] \| Substandard [Member] \| Florida region [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Loans held for investment	0	0
Commercial Portfolio Segment [Member] \| Construction Loans [Member] \| Doubtful [Member]
Financing Receivable Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Loans held for investment	0	0
Commercial Portfolio Segment [Member] \| Construction Loans [Member] \| Doubtful [Member] \| Puerto Rico and Virgin Islands regions [Member]
Financing Receivable Recorded Investment [Line Items]

LOANS HELD FOR INVESTMENT - Corporation's Commercial and Construction Loans by Portfolio Classes and by Origination Year Based on the Internal Credit Risk Category (Detail) - USD ($)
$ in Thousands