LOANS HELD FOR INVESTMENT - Corporation's Consumer Loans by Origination Year Based on Accrual Status (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	$ 11,298,618	$ 11,060,658
Puerto Rico and Virgin Islands regions [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	9,247,998	9,113,918
Florida region [Member}
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	2,050,620	1,946,740
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	951,514
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	838,286
Financing Receivable, Originated Two Years before Latest Fiscal Year	416,646
Financing Receivable, Originated Three Years before Latest Fiscal Year	396,636
Financing Receivable, Originated Four Years before Latest Fiscal Year	203,620
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	97,329
Financing Receivable, Revolving	315,719
Loans held for investment	3,219,750	2,888,044
Consumer Portfolio Segment [Member] \| Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	950,618
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	835,687
Financing Receivable, Originated Two Years before Latest Fiscal Year	414,692
Financing Receivable, Originated Three Years before Latest Fiscal Year	393,415
Financing Receivable, Originated Four Years before Latest Fiscal Year	201,860
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	95,208
Financing Receivable, Revolving	315,483
Loans held for investment	3,206,963	2,877,590
Consumer Portfolio Segment [Member] \| Nonperforming Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	896
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	2,599
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,954
Financing Receivable, Originated Three Years before Latest Fiscal Year	3,221
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,760
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2,121
Financing Receivable, Revolving	236
Loans held for investment	12,787	10,454
Consumer Portfolio Segment [Member] \| Puerto Rico and Virgin Islands regions [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	951,190
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	837,982
Financing Receivable, Originated Two Years before Latest Fiscal Year	416,164
Financing Receivable, Originated Three Years before Latest Fiscal Year	396,259
Financing Receivable, Originated Four Years before Latest Fiscal Year	200,751
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	92,898
Financing Receivable, Revolving	313,193
Loans held for investment	3,208,437	2,872,384
Consumer Portfolio Segment [Member] \| Puerto Rico and Virgin Islands regions [Member] \| Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	950,294
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	835,383
Financing Receivable, Originated Two Years before Latest Fiscal Year	414,210
Financing Receivable, Originated Three Years before Latest Fiscal Year	393,038
Financing Receivable, Originated Four Years before Latest Fiscal Year	198,991
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	90,811
Financing Receivable, Revolving	313,057
Loans held for investment	3,195,784	2,862,063
Consumer Portfolio Segment [Member] \| Puerto Rico and Virgin Islands regions [Member] \| Nonperforming Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	896
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	2,599
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,954
Financing Receivable, Originated Three Years before Latest Fiscal Year	3,221
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,760
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2,087
Financing Receivable, Revolving	136
Loans held for investment	12,653	10,321
Consumer Portfolio Segment [Member] \| Florida region [Member}
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	324
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	304
Financing Receivable, Originated Two Years before Latest Fiscal Year	482
Financing Receivable, Originated Three Years before Latest Fiscal Year	377
Financing Receivable, Originated Four Years before Latest Fiscal Year	2,869
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	4,431
Financing Receivable, Revolving	2,526
Loans held for investment	11,313	15,660
Consumer Portfolio Segment [Member] \| Florida region [Member} \| Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	324
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	304
Financing Receivable, Originated Two Years before Latest Fiscal Year	482
Financing Receivable, Originated Three Years before Latest Fiscal Year	377
Financing Receivable, Originated Four Years before Latest Fiscal Year	2,869
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	4,397
Financing Receivable, Revolving	2,426
Loans held for investment	11,179	15,527
Consumer Portfolio Segment [Member] \| Florida region [Member} \| Nonperforming Financial Instruments [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	34
Financing Receivable, Revolving	100
Loans held for investment	134	133
Consumer Portfolio Segment [Member] \| Auto loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	531,454
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	545,805
Financing Receivable, Originated Two Years before Latest Fiscal Year	276,785
Financing Receivable, Originated Three Years before Latest Fiscal Year	230,286
Financing Receivable, Originated Four Years before Latest Fiscal Year	116,459
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	53,511
Financing Receivable, Revolving	0
Loans held for investment	1,754,300	1,571,540
Consumer Portfolio Segment [Member] \| Auto loans [Member] \| Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	530,902
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	544,149
Financing Receivable, Originated Two Years before Latest Fiscal Year	275,432
Financing Receivable, Originated Three Years before Latest Fiscal Year	227,878
Financing Receivable, Originated Four Years before Latest Fiscal Year	115,045
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	52,191
Financing Receivable, Revolving	0
Loans held for investment	1,745,597	1,564,856
Consumer Portfolio Segment [Member] \| Auto loans [Member] \| Nonperforming Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	552
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,656
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,353
Financing Receivable, Originated Three Years before Latest Fiscal Year	2,408
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,414
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,320
Financing Receivable, Revolving	0
Loans held for investment	8,703	6,684
Consumer Portfolio Segment [Member] \| Auto loans [Member] \| Puerto Rico and Virgin Islands regions [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	531,454
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	545,805
Financing Receivable, Originated Two Years before Latest Fiscal Year	276,785
Financing Receivable, Originated Three Years before Latest Fiscal Year	229,909
Financing Receivable, Originated Four Years before Latest Fiscal Year	113,629
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	52,031
Financing Receivable, Revolving	0
Loans held for investment	1,749,613	1,562,781
Consumer Portfolio Segment [Member] \| Auto loans [Member] \| Puerto Rico and Virgin Islands regions [Member] \| Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	530,902
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	544,149
Financing Receivable, Originated Two Years before Latest Fiscal Year	275,432
Financing Receivable, Originated Three Years before Latest Fiscal Year	227,501
Financing Receivable, Originated Four Years before Latest Fiscal Year	112,215
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	50,723
Financing Receivable, Revolving	0
Loans held for investment	1,740,922	1,556,097
Consumer Portfolio Segment [Member] \| Auto loans [Member] \| Puerto Rico and Virgin Islands regions [Member] \| Nonperforming Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	552
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,656
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,353
Financing Receivable, Originated Three Years before Latest Fiscal Year	2,408
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,414
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,308
Financing Receivable, Revolving	0
Loans held for investment	8,691	6,684
Consumer Portfolio Segment [Member] \| Auto loans [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	377
Financing Receivable, Originated Four Years before Latest Fiscal Year	2,830
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,480
Financing Receivable, Revolving	0
Loans held for investment	4,687	8,759
Consumer Portfolio Segment [Member] \| Auto loans [Member] \| Florida region [Member} \| Performing Financial Instruments [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	377
Financing Receivable, Originated Four Years before Latest Fiscal Year	2,830
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,468
Financing Receivable, Revolving	0
Loans held for investment	4,675	8,759
Consumer Portfolio Segment [Member] \| Auto loans [Member] \| Florida region [Member} \| Nonperforming Financial Instruments [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	12
Financing Receivable, Revolving	0
Loans held for investment	12	0
Consumer Portfolio Segment [Member] \| Finance Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	212,178
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	201,117
Financing Receivable, Originated Two Years before Latest Fiscal Year	94,469
Financing Receivable, Originated Three Years before Latest Fiscal Year	88,492
Financing Receivable, Originated Four Years before Latest Fiscal Year	54,596
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	18,262
Financing Receivable, Revolving	0
Loans held for investment	669,114	575,005
Consumer Portfolio Segment [Member] \| Finance Leases [Member] \| Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	212,139
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	200,819
Financing Receivable, Originated Two Years before Latest Fiscal Year	94,148
Financing Receivable, Originated Three Years before Latest Fiscal Year	88,244
Financing Receivable, Originated Four Years before Latest Fiscal Year	54,392
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	17,942
Financing Receivable, Revolving	0
Loans held for investment	667,684	574,139
Consumer Portfolio Segment [Member] \| Finance Leases [Member] \| Nonperforming Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	39
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	298
Financing Receivable, Originated Two Years before Latest Fiscal Year	321
Financing Receivable, Originated Three Years before Latest Fiscal Year	248
Financing Receivable, Originated Four Years before Latest Fiscal Year	204
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	320
Financing Receivable, Revolving	0
Loans held for investment	1,430	866
Consumer Portfolio Segment [Member] \| Finance Leases [Member] \| Puerto Rico and Virgin Islands regions [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	212,178
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	201,117
Financing Receivable, Originated Two Years before Latest Fiscal Year	94,469
Financing Receivable, Originated Three Years before Latest Fiscal Year	88,492
Financing Receivable, Originated Four Years before Latest Fiscal Year	54,596
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	18,262
Financing Receivable, Revolving	0
Loans held for investment	669,114	575,005
Consumer Portfolio Segment [Member] \| Finance Leases [Member] \| Puerto Rico and Virgin Islands regions [Member] \| Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	212,139
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	200,819
Financing Receivable, Originated Two Years before Latest Fiscal Year	94,148
Financing Receivable, Originated Three Years before Latest Fiscal Year	88,244
Financing Receivable, Originated Four Years before Latest Fiscal Year	54,392
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	17,942
Financing Receivable, Revolving	0
Loans held for investment	667,684	574,139
Consumer Portfolio Segment [Member] \| Finance Leases [Member] \| Puerto Rico and Virgin Islands regions [Member] \| Nonperforming Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	39
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	298
Financing Receivable, Originated Two Years before Latest Fiscal Year	321
Financing Receivable, Originated Three Years before Latest Fiscal Year	248
Financing Receivable, Originated Four Years before Latest Fiscal Year	204
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	320
Financing Receivable, Revolving	0
Loans held for investment	1,430	866
Consumer Portfolio Segment [Member] \| Finance Leases [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
Consumer Portfolio Segment [Member] \| Finance Leases [Member] \| Florida region [Member} \| Performing Financial Instruments [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
Consumer Portfolio Segment [Member] \| Finance Leases [Member] \| Florida region [Member} \| Nonperforming Financial Instruments [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
Consumer Portfolio Segment [Member] \| Personal Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	142,120
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	63,660
Financing Receivable, Originated Two Years before Latest Fiscal Year	34,165
Financing Receivable, Originated Three Years before Latest Fiscal Year	63,077
Financing Receivable, Originated Four Years before Latest Fiscal Year	27,482
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	17,598
Financing Receivable, Revolving	0
Loans held for investment	348,102	316,182
Consumer Portfolio Segment [Member] \| Personal Loans [Member] \| Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	142,033
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	63,379
Financing Receivable, Originated Two Years before Latest Fiscal Year	33,973
Financing Receivable, Originated Three Years before Latest Fiscal Year	62,696
Financing Receivable, Originated Four Years before Latest Fiscal Year	27,401
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	17,474
Financing Receivable, Revolving	0
Loans held for investment	346,956	314,974
Consumer Portfolio Segment [Member] \| Personal Loans [Member] \| Nonperforming Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	87
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	281
Financing Receivable, Originated Two Years before Latest Fiscal Year	192
Financing Receivable, Originated Three Years before Latest Fiscal Year	381
Financing Receivable, Originated Four Years before Latest Fiscal Year	81
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	124
Financing Receivable, Revolving	0
Loans held for investment	1,146	1,208
Consumer Portfolio Segment [Member] \| Personal Loans [Member] \| Puerto Rico and Virgin Islands regions [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	141,846
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	63,589
Financing Receivable, Originated Two Years before Latest Fiscal Year	34,152
Financing Receivable, Originated Three Years before Latest Fiscal Year	63,077
Financing Receivable, Originated Four Years before Latest Fiscal Year	27,482
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	17,598
Financing Receivable, Revolving	0
Loans held for investment	347,744	316,075
Consumer Portfolio Segment [Member] \| Personal Loans [Member] \| Puerto Rico and Virgin Islands regions [Member] \| Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	141,759
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	63,308
Financing Receivable, Originated Two Years before Latest Fiscal Year	33,960
Financing Receivable, Originated Three Years before Latest Fiscal Year	62,696
Financing Receivable, Originated Four Years before Latest Fiscal Year	27,401
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	17,474
Financing Receivable, Revolving	0
Loans held for investment	346,598	314,867
Consumer Portfolio Segment [Member] \| Personal Loans [Member] \| Puerto Rico and Virgin Islands regions [Member] \| Nonperforming Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	87
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	281
Financing Receivable, Originated Two Years before Latest Fiscal Year	192
Financing Receivable, Originated Three Years before Latest Fiscal Year	381
Financing Receivable, Originated Four Years before Latest Fiscal Year	81
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	124
Financing Receivable, Revolving	0
Loans held for investment	1,146	1,208
Consumer Portfolio Segment [Member] \| Personal Loans [Member] \| Florida region [Member}
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	274
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	71
Financing Receivable, Originated Two Years before Latest Fiscal Year	13
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	358	107
Consumer Portfolio Segment [Member] \| Personal Loans [Member] \| Florida region [Member} \| Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	274
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	71
Financing Receivable, Originated Two Years before Latest Fiscal Year	13
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	358	107
Consumer Portfolio Segment [Member] \| Personal Loans [Member] \| Florida region [Member} \| Nonperforming Financial Instruments [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
Consumer Portfolio Segment [Member] \| Credit Card Receivables [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	304,072
Loans held for investment	304,072	290,226
Consumer Portfolio Segment [Member] \| Credit Card Receivables [Member] \| Performing Financial Instruments [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	304,072
Loans held for investment	304,072	290,226
Consumer Portfolio Segment [Member] \| Credit Card Receivables [Member] \| Nonperforming Financial Instruments [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
Consumer Portfolio Segment [Member] \| Credit Card Receivables [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	304,072
Loans held for investment	304,072	290,226
Consumer Portfolio Segment [Member] \| Credit Card Receivables [Member] \| Puerto Rico and Virgin Islands regions [Member] \| Performing Financial Instruments [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	304,072
Loans held for investment	304,072	290,226
Consumer Portfolio Segment [Member] \| Credit Card Receivables [Member] \| Puerto Rico and Virgin Islands regions [Member] \| Nonperforming Financial Instruments [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
Consumer Portfolio Segment [Member] \| Credit Card Receivables [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
Consumer Portfolio Segment [Member] \| Credit Card Receivables [Member] \| Florida region [Member} \| Performing Financial Instruments [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
Consumer Portfolio Segment [Member] \| Credit Card Receivables [Member] \| Florida region [Member} \| Nonperforming Financial Instruments [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
Consumer Portfolio Segment [Member] \| Other Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	65,762
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	27,704
Financing Receivable, Originated Two Years before Latest Fiscal Year	11,227
Financing Receivable, Originated Three Years before Latest Fiscal Year	14,781
Financing Receivable, Originated Four Years before Latest Fiscal Year	5,083
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	7,958
Financing Receivable, Revolving	11,647
Loans held for investment	144,162	135,091
Consumer Portfolio Segment [Member] \| Other Loans [Member] \| Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	65,544
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	27,340
Financing Receivable, Originated Two Years before Latest Fiscal Year	11,139
Financing Receivable, Originated Three Years before Latest Fiscal Year	14,597
Financing Receivable, Originated Four Years before Latest Fiscal Year	5,022
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	7,601
Financing Receivable, Revolving	11,411
Loans held for investment	142,654	133,395
Consumer Portfolio Segment [Member] \| Other Loans [Member] \| Nonperforming Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	218
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	364
Financing Receivable, Originated Two Years before Latest Fiscal Year	88
Financing Receivable, Originated Three Years before Latest Fiscal Year	184
Financing Receivable, Originated Four Years before Latest Fiscal Year	61
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	357
Financing Receivable, Revolving	236
Loans held for investment	1,508	1,696
Consumer Portfolio Segment [Member] \| Other Loans [Member] \| Puerto Rico and Virgin Islands regions [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Originated in Current Fiscal Year	65,712
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	27,471
Financing Receivable, Originated Two Years before Latest Fiscal Year	10,758
Financing Receivable, Originated Three Years before Latest Fiscal Year	14,781
Financing Receivable, Originated Four Years before Latest Fiscal Year	5,044
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	5,007
Financing Receivable, Revolving	9,121
Loans held for investment	137,894	128,297
Consumer Portfolio Segment [Member] \| Other Loans [Member] \| Puerto Rico and Virgin Islands regions [Member] \| Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]

LOANS HELD FOR INVESTMENT - Corporation's Consumer Loans by Origination Year Based on Accrual Status (Detail) - USD ($)
$ in Thousands

Sep. 30, 2022

Dec. 31, 2021

Financing Receivable, Recorded Investment [Line Items]

Loans held for investment

$ 11,298,618

$ 11,060,658

Puerto Rico and Virgin Islands regions [Member]

Financing Receivable, Recorded Investment [Line Items]

Loans held for investment

9,247,998

9,113,918