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, 2022	Dec. 31, 2021
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	$ 11,552,825	$ 11,060,658
Puerto Rico and Virgin Islands regions [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	9,464,474	9,113,918
Florida region [Member}
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	2,088,351	1,946,740
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	575,910
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	359,933
Financing Receivable, Originated Two Years before Latest Fiscal Year	263,474
Financing Receivable, Originated Three Years before Latest Fiscal Year	584,936
Financing Receivable, Originated Four Years before Latest Fiscal Year	165,560
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	242,707
Financing Receivable, Revolving	693,743
Loans held for investment	2,886,263	2,887,251
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	298,273
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	196,723
Financing Receivable, Originated Two Years before Latest Fiscal Year	186,180
Financing Receivable, Originated Three Years before Latest Fiscal Year	330,606
Financing Receivable, Originated Four Years before Latest Fiscal Year	99,076
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	192,070
Financing Receivable, Revolving	557,181
Loans held for investment	1,860,109	1,946,597
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	277,637
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	163,210
Financing Receivable, Originated Two Years before Latest Fiscal Year	77,294
Financing Receivable, Originated Three Years before Latest Fiscal Year	254,330
Financing Receivable, Originated Four Years before Latest Fiscal Year	66,484
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	50,637
Financing Receivable, Revolving	136,562
Loans held for investment	1,026,154	940,654
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member] \| Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	575,569
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	358,670
Financing Receivable, Originated Two Years before Latest Fiscal Year	261,883
Financing Receivable, Originated Three Years before Latest Fiscal Year	539,491
Financing Receivable, Originated Four Years before Latest Fiscal Year	154,968
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	214,229
Financing Receivable, Revolving	663,913
Loans held for investment	2,768,723	2,679,375
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	297,932
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	195,460
Financing Receivable, Originated Two Years before Latest Fiscal Year	184,856
Financing Receivable, Originated Three Years before Latest Fiscal Year	315,987
Financing Receivable, Originated Four Years before Latest Fiscal Year	88,484
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	179,201
Financing Receivable, Revolving	527,652
Loans held for investment	1,789,572	1,852,552
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	277,637
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	163,210
Financing Receivable, Originated Two Years before Latest Fiscal Year	77,027
Financing Receivable, Originated Three Years before Latest Fiscal Year	223,504
Financing Receivable, Originated Four Years before Latest Fiscal Year	66,484
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	35,028
Financing Receivable, Revolving	136,261
Loans held for investment	979,151	826,823
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	138
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	912
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	6,474
Financing Receivable, Originated Four Years before Latest Fiscal Year	9,867
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	14,562
Financing Receivable, Revolving	29,176
Loans held for investment	61,129	82,596
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	138
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	912
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	500
Financing Receivable, Originated Four Years before Latest Fiscal Year	9,867
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2,631
Financing Receivable, Revolving	29,176
Loans held for investment	43,224	32,650
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	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	5,974
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	11,931
Financing Receivable, Revolving	0
Loans held for investment	17,905	49,946
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member] \| Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	203
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	351
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,591
Financing Receivable, Originated Three Years before Latest Fiscal Year	38,971
Financing Receivable, Originated Four Years before Latest Fiscal Year	725
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	13,916
Financing Receivable, Revolving	654
Loans held for investment	56,411	125,280
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	203
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	351
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,324
Financing Receivable, Originated Three Years before Latest Fiscal Year	14,119
Financing Receivable, Originated Four Years before Latest Fiscal Year	725
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	10,238
Financing Receivable, Revolving	353
Loans held for investment	27,313	61,395
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	267
Financing Receivable, Originated Three Years before Latest Fiscal Year	24,852
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	3,678
Financing Receivable, Revolving	301
Loans held for investment	29,098	63,885
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	569,053
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	211,981
Financing Receivable, Originated Two Years before Latest Fiscal Year	416,265
Financing Receivable, Originated Three Years before Latest Fiscal Year	374,840
Financing Receivable, Originated Four Years before Latest Fiscal Year	277,241
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	489,889
Financing Receivable, Revolving	19,582
Loans held for investment	2,358,851	2,167,469
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	392,922
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	141,456
Financing Receivable, Originated Two Years before Latest Fiscal Year	366,698
Financing Receivable, Originated Three Years before Latest Fiscal Year	306,692
Financing Receivable, Originated Four Years before Latest Fiscal Year	205,837
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	419,573
Financing Receivable, Revolving	1,026
Loans held for investment	1,834,204	1,702,231
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| Florida region [Member}
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	176,131
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	70,525
Financing Receivable, Originated Two Years before Latest Fiscal Year	49,567
Financing Receivable, Originated Three Years before Latest Fiscal Year	68,148
Financing Receivable, Originated Four Years before Latest Fiscal Year	71,404
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	70,316
Financing Receivable, Revolving	18,556
Loans held for investment	524,647	465,238
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	567,720
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	211,981
Financing Receivable, Originated Two Years before Latest Fiscal Year	404,528
Financing Receivable, Originated Three Years before Latest Fiscal Year	351,793
Financing Receivable, Originated Four Years before Latest Fiscal Year	265,199
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	338,109
Financing Receivable, Revolving	19,582
Loans held for investment	2,158,912	1,799,873
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	391,589
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	141,456
Financing Receivable, Originated Two Years before Latest Fiscal Year	363,115
Financing Receivable, Originated Three Years before Latest Fiscal Year	296,954
Financing Receivable, Originated Four Years before Latest Fiscal Year	193,795
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	267,793
Financing Receivable, Revolving	1,026
Loans held for investment	1,655,728	1,395,569
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	176,131
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	70,525
Financing Receivable, Originated Two Years before Latest Fiscal Year	41,413
Financing Receivable, Originated Three Years before Latest Fiscal Year	54,839
Financing Receivable, Originated Four Years before Latest Fiscal Year	71,404
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	70,316
Financing Receivable, Revolving	18,556
Loans held for investment	503,184	404,304
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	1,198
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	10,569
Financing Receivable, Originated Three Years before Latest Fiscal Year	20,228
Financing Receivable, Originated Four Years before Latest Fiscal Year	12,042
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	121,673
Financing Receivable, Revolving	0
Loans held for investment	165,710	319,881
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	1,198
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	3,583
Financing Receivable, Originated Three Years before Latest Fiscal Year	6,919
Financing Receivable, Originated Four Years before Latest Fiscal Year	12,042
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	121,673
Financing Receivable, Revolving	0
Loans held for investment	145,415	259,263
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	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	6,986
Financing Receivable, Originated Three Years before Latest Fiscal Year	13,309
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	20,295	60,618
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	135
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,168
Financing Receivable, Originated Three Years before Latest Fiscal Year	2,819
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	30,107
Financing Receivable, Revolving	0
Loans held for investment	34,229	47,715
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	135
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	2,819
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	30,107
Financing Receivable, Revolving	0
Loans held for investment	33,061	47,399
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	1,168
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	1,168	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	57,999
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	61,226
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	14
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	6,924
Financing Receivable, Revolving	6,790
Loans held for investment	132,953	138,999
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	9,463
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	18,385
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	6,924
Financing Receivable, Revolving	0
Loans held for investment	34,772	43,133
Commercial Portfolio Segment [Member] \| Construction Loans [Member] \| Florida region [Member}
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	48,536
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	42,841
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	14
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	6,790
Loans held for investment	98,181	95,866
Commercial Portfolio Segment [Member] \| Construction Loans [Member] \| Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	57,999
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	61,226
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	14
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	4,031
Financing Receivable, Revolving	6,790
Loans held for investment	130,060	133,932
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	9,463
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	18,385
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	4,031
Financing Receivable, Revolving	0
Loans held for investment	31,879	38,066
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	48,536
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	42,841
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	14
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	6,790
Loans held for investment	98,181	95,866
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	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	765
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	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	765
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	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2,893
Financing Receivable, Revolving	0
Loans held for investment	2,893	4,302
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	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2,893
Financing Receivable, Revolving	0
Loans held for investment	2,893	4,302
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