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	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	$ 11,060,658	$ 11,777,289
Puerto Rico and Virgin Islands regions [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	9,113,918	9,788,106
Florida region [Member}
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	1,946,740	1,989,183
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	556,630
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	355,661
Financing Receivable, Originated Two Years before Latest Fiscal Year	631,282
Financing Receivable, Originated Three Years before Latest Fiscal Year	257,150
Financing Receivable, Originated Four Years before Latest Fiscal Year	236,741
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	263,974
Financing Receivable, Revolving	585,813
Loans held for investment	2,887,251	3,202,590
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	317,613
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	209,402
Financing Receivable, Originated Two Years before Latest Fiscal Year	362,116
Financing Receivable, Originated Three Years before Latest Fiscal Year	182,710
Financing Receivable, Originated Four Years before Latest Fiscal Year	177,559
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	233,436
Financing Receivable, Revolving	463,761
Loans held for investment	1,946,597	2,264,731
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	239,017
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	146,259
Financing Receivable, Originated Two Years before Latest Fiscal Year	269,166
Financing Receivable, Originated Three Years before Latest Fiscal Year	74,440
Financing Receivable, Originated Four Years before Latest Fiscal Year	59,182
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	30,538
Financing Receivable, Revolving	122,052
Loans held for investment	940,654	937,859
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member] \| Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	546,448
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	328,375
Financing Receivable, Originated Two Years before Latest Fiscal Year	554,229
Financing Receivable, Originated Three Years before Latest Fiscal Year	255,041
Financing Receivable, Originated Four Years before Latest Fiscal Year	219,571
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	222,923
Financing Receivable, Revolving	552,788
Loans held for investment	2,679,375	2,978,350
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	307,431
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	206,560
Financing Receivable, Originated Two Years before Latest Fiscal Year	346,746
Financing Receivable, Originated Three Years before Latest Fiscal Year	180,601
Financing Receivable, Originated Four Years before Latest Fiscal Year	160,389
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	201,785
Financing Receivable, Revolving	449,040
Loans held for investment	1,852,552	2,155,226
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	239,017
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	121,815
Financing Receivable, Originated Two Years before Latest Fiscal Year	207,483
Financing Receivable, Originated Three Years before Latest Fiscal Year	74,440
Financing Receivable, Originated Four Years before Latest Fiscal Year	59,182
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	21,138
Financing Receivable, Revolving	103,748
Loans held for investment	826,823	823,124
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	9,549
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,372
Financing Receivable, Originated Two Years before Latest Fiscal Year	28,043
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	16,411
Financing Receivable, Revolving	27,221
Loans held for investment	82,596	133,395
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	9,549
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,372
Financing Receivable, Originated Two Years before Latest Fiscal Year	836
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	11,641
Financing Receivable, Revolving	9,252
Loans held for investment	32,650	59,421
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	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	27,207
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	4,770
Financing Receivable, Revolving	17,969
Loans held for investment	49,946	73,974
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member] \| Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	633
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	25,914
Financing Receivable, Originated Two Years before Latest Fiscal Year	49,010
Financing Receivable, Originated Three Years before Latest Fiscal Year	2,109
Financing Receivable, Originated Four Years before Latest Fiscal Year	17,170
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	24,640
Financing Receivable, Revolving	5,804
Loans held for investment	125,280	90,845
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	633
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,470
Financing Receivable, Originated Two Years before Latest Fiscal Year	14,534
Financing Receivable, Originated Three Years before Latest Fiscal Year	2,109
Financing Receivable, Originated Four Years before Latest Fiscal Year	17,170
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	20,010
Financing Receivable, Revolving	5,469
Loans held for investment	61,395	50,084
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	24,444
Financing Receivable, Originated Two Years before Latest Fiscal Year	34,476
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	4,630
Financing Receivable, Revolving	335
Loans held for investment	63,885	40,761
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	0
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	0
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	0
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	0
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	258,532
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	459,744
Financing Receivable, Originated Two Years before Latest Fiscal Year	407,284
Financing Receivable, Originated Three Years before Latest Fiscal Year	311,927
Financing Receivable, Originated Four Years before Latest Fiscal Year	229,424
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	482,168
Financing Receivable, Revolving	18,390
Loans held for investment	2,167,469	2,230,602
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	161,317
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	375,532
Financing Receivable, Originated Two Years before Latest Fiscal Year	306,351
Financing Receivable, Originated Three Years before Latest Fiscal Year	243,766
Financing Receivable, Originated Four Years before Latest Fiscal Year	194,017
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	421,018
Financing Receivable, Revolving	230
Loans held for investment	1,702,231	1,853,224
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| Florida region [Member}
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	97,215
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	84,212
Financing Receivable, Originated Two Years before Latest Fiscal Year	100,933
Financing Receivable, Originated Three Years before Latest Fiscal Year	68,161
Financing Receivable, Originated Four Years before Latest Fiscal Year	35,407
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	61,150
Financing Receivable, Revolving	18,160
Loans held for investment	465,238	377,378
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	256,308
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	441,997
Financing Receivable, Originated Two Years before Latest Fiscal Year	304,274
Financing Receivable, Originated Three Years before Latest Fiscal Year	285,196
Financing Receivable, Originated Four Years before Latest Fiscal Year	103,722
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	389,986
Financing Receivable, Revolving	18,390
Loans held for investment	1,799,873	1,803,454
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	159,093
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	364,911
Financing Receivable, Originated Two Years before Latest Fiscal Year	216,942
Financing Receivable, Originated Three Years before Latest Fiscal Year	223,817
Financing Receivable, Originated Four Years before Latest Fiscal Year	73,668
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	356,908
Financing Receivable, Revolving	230
Loans held for investment	1,395,569	1,511,827
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	97,215
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	77,086
Financing Receivable, Originated Two Years before Latest Fiscal Year	87,332
Financing Receivable, Originated Three Years before Latest Fiscal Year	61,379
Financing Receivable, Originated Four Years before Latest Fiscal Year	30,054
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	33,078
Financing Receivable, Revolving	18,160
Loans held for investment	404,304	291,627
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	17,747
Financing Receivable, Originated Two Years before Latest Fiscal Year	103,010
Financing Receivable, Originated Three Years before Latest Fiscal Year	25,949
Financing Receivable, Originated Four Years before Latest Fiscal Year	123,475
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	49,700
Financing Receivable, Revolving	0
Loans held for investment	319,881	378,163
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	10,621
Financing Receivable, Originated Two Years before Latest Fiscal Year	89,409
Financing Receivable, Originated Three Years before Latest Fiscal Year	19,167
Financing Receivable, Originated Four Years before Latest Fiscal Year	118,122
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	21,944
Financing Receivable, Revolving	0
Loans held for investment	259,263	292,736
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	7,126
Financing Receivable, Originated Two Years before Latest Fiscal Year	13,601
Financing Receivable, Originated Three Years before Latest Fiscal Year	6,782
Financing Receivable, Originated Four Years before Latest Fiscal Year	5,353
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	27,756
Financing Receivable, Revolving	0
Loans held for investment	60,618	85,427
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	2,224
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	782
Financing Receivable, Originated Four Years before Latest Fiscal Year	2,227
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	42,482
Financing Receivable, Revolving	0
Loans held for investment	47,715	48,985
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	2,224
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	782
Financing Receivable, Originated Four Years before Latest Fiscal Year	2,227
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	42,166
Financing Receivable, Revolving	0
Loans held for investment	47,399	48,661
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	316
Financing Receivable, Revolving	0
Loans held for investment	316	324
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	33,203
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	38,805
Financing Receivable, Originated Two Years before Latest Fiscal Year	19,849
Financing Receivable, Originated Three Years before Latest Fiscal Year	38,613
Financing Receivable, Originated Four Years before Latest Fiscal Year	193
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	8,336
Financing Receivable, Revolving	0
Loans held for investment	138,999	212,500
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	1,401
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	12,596
Financing Receivable, Originated Two Years before Latest Fiscal Year	19,766
Financing Receivable, Originated Three Years before Latest Fiscal Year	841
Financing Receivable, Originated Four Years before Latest Fiscal Year	193
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	8,336
Financing Receivable, Revolving	0
Loans held for investment	43,133	85,016
Commercial Portfolio Segment [Member] \| Construction Loans [Member] \| Florida region [Member}
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	31,802
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	26,209
Financing Receivable, Originated Two Years before Latest Fiscal Year	83
Financing Receivable, Originated Three Years before Latest Fiscal Year	37,772
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	95,866	127,484
Commercial Portfolio Segment [Member] \| Construction Loans [Member] \| Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	33,203
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	38,805
Financing Receivable, Originated Two Years before Latest Fiscal Year	19,084
Financing Receivable, Originated Three Years before Latest Fiscal Year	37,772
Financing Receivable, Originated Four Years before Latest Fiscal Year	193
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	4,875
Financing Receivable, Revolving	0
Loans held for investment	133,932	196,320
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	1,401
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	12,596
Financing Receivable, Originated Two Years before Latest Fiscal Year	19,001
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	193
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	4,875
Financing Receivable, Revolving	0
Loans held for investment	38,066	68,836
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	31,802
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	26,209
Financing Receivable, Originated Two Years before Latest Fiscal Year	83
Financing Receivable, Originated Three Years before Latest Fiscal Year	37,772
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	95,866	127,484
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	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	765
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	765	776
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	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	765
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	765	776
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	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	841
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	3,461
Financing Receivable, Revolving	0
Loans held for investment	4,302	15,404
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	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	841
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	3,461
Financing Receivable, Revolving	0
Loans held for investment	4,302	15,404
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