Amount of increase (decrease) in allowance for loan and lease losses write-offs, net.

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Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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ALLOWANCE FOR CREDIT LOSSES FOR LOANS AND FINANCE LEASES - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Financing Receivable Allowance For Credit Losses [Line Items]
Increase (decrease) in ACL			$ (7,300)
Provision for credit losses - (benefit) expense	$ 11,930	$ 20,770	24,847	$ 37,026
Net charge-offs	21,000	19,300	32,200	32,500
Increase (decrease) in net charge-offs	1,700		(300)
Recoveries	5,424	4,805	23,595	9,453
Off-Balance Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal)	(417)	721	(136)	616
Off-Balance Sheet, Credit Loss, Liability	4,502	4,889	4,502	4,889	$ 4,919	$ 4,638	$ 4,168	$ 4,273
Charge-offs	26,414	24,084	55,753	42,001
Net disbursements on loans held for investment			307,677	226,714
Allowance for credit losses	254,532	267,058	254,532	267,058	263,592	261,843	265,567	260,464
Residential Portfolio Segment [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Increase (decrease) in ACL			(11,300)
Provision for credit losses - (benefit) expense	(10,593)	(3,500)	(11,057)	(3,427)
Recoveries	446	757	718	1,254
Charge-offs	491	1,146	1,007	2,129
Allowance for credit losses	46,051	60,514	46,051	60,514	56,689	57,397	64,403	62,760
Residential Portfolio Segment [Member] \| U S [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Charge-offs			0
Commercial Portfolio Segment [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Increase (decrease) in ACL			(1,300)
Commercial Portfolio Segment [Member] \| Construction Loans [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Provision for credit losses - (benefit) expense	(554)	1,202	17	2,062
Recoveries	14	409	24	472
Charge-offs	0	38	0	38
Allowance for credit losses	5,646	4,804	5,646	4,804	6,186	5,605	3,231	2,308
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Provision for credit losses - (benefit) expense	(668)	2,997	(4,028)	1,347
Increase (decrease) in net charge-offs	6,200
Recoveries	958	132	6,077	222
Charge-offs	332	6,350	791	6,468
Allowance for credit losses	34,448	28,014	34,448	28,014	34,490	33,190	31,235	32,906
Commercial Portfolio Segment [Member] \| U S [Member] \| Construction Loans [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Charge-offs			0
Commercial Portfolio Segment [Member] \| U S [Member] \| Commercial And Industrial Sector [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Charge-offs			307
Commercial Portfolio Segment [Member] \| Puerto Rico [Member] \| Commercial And Industrial Sector [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Recoveries			5,000
Consumer Portfolio Segment [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Increase (decrease) in ACL			5,300
Provision for credit losses - (benefit) expense	26,721	14,072	42,901	29,799
Recoveries	3,613	3,451	16,343	7,281
Charge-offs	25,591	16,462	53,955	33,260
Allowance for credit losses	$ 138,309	$ 131,299	138,309	$ 131,299	$ 133,566	$ 133,020	$ 130,238	$ 127,426
Consumer Portfolio Segment [Member] \| Automobile Loan [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Charge-offs			16,093
Consumer Portfolio Segment [Member] \| Bulk Sale Of Nonaccrual Loans [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Recoveries			9,500
Consumer Portfolio Segment [Member] \| U S [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Charge-offs			66
Consumer Portfolio Segment [Member] \| U S [Member] \| Automobile Loan [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Charge-offs			$ 66