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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, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2023	Jan. 01, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable Allowance For Credit Losses [Line Items]
Increase (decrease) in ACL			$ (6,600)
Provision for credit losses - (benefit) expense	$ 20,770	$ 12,665	37,026	$ (4,324)
Recoveries	4,805	6,632	9,453	12,753
Off-Balance Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal)	721	812	616	634
Off-Balance Sheet, Credit Loss, Liability	4,889	2,171	4,889	2,171	$ 4,168		$ 4,273	$ 1,359	$ 1,537
Charge-offs	24,084	12,592	42,001	25,307
Net disbursements on loans held for investment			226,714	186,902
Residential Portfolio Segment [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Increase (decrease) in ACL			(2,300)
Provision for credit losses - (benefit) expense	(3,500)	(2,797)	(3,427)	(7,668)
Recoveries	757	1,287	1,254	2,669
Charge-offs	1,146	2,079	2,129	4,607
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			5,000
Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Provision for credit losses - (benefit) expense	2,997	(1,102)	1,347	653
Recoveries	132	589	222	1,624
Charge-offs	6,350	68	6,468	358
Commercial Portfolio Segment [Member] \| Construction Loans [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Provision for credit losses - (benefit) expense	1,202	151	2,062	(2,063)
Recoveries	409	43	472	95
Charge-offs	38	16	38	60
Commercial Portfolio Segment [Member] \| U S [Member] \| Commercial And Industrial Sector [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Charge-offs			6,202
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] \| Mortgage Receivable [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Provision for credit losses - (benefit) expense	5,999	1,265	7,245	(21,375)
Recoveries	56	1,218	224	1,262
Charge-offs	88	2	106	39
Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member] \| U S [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Charge-offs			0
Consumer Portfolio Segment [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Increase (decrease) in ACL			3,900
Provision for credit losses - (benefit) expense	14,072	15,148	29,799	26,129
Recoveries	3,451	3,495	7,281	7,103
Charge-offs	$ 16,462	$ 10,427	33,260	$ 20,243
Consumer Portfolio Segment [Member] \| Automobile Loan [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Charge-offs			8,873
Consumer Portfolio Segment [Member] \| U S [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Charge-offs			221
Consumer Portfolio Segment [Member] \| U S [Member] \| Automobile Loan [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Charge-offs			$ 221
Accounting Standard Update 2022-02 [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Financing Receivable Allowance For Credit Losses						$ 2,116
Accounting Standard Update 2022-02 [Member] \| Residential Portfolio Segment [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Financing Receivable Allowance For Credit Losses						2,056
Accounting Standard Update 2022-02 [Member] \| Commercial Portfolio Segment [Member] \| Commercial And Industrial Sector [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Financing Receivable Allowance For Credit Losses						7
Accounting Standard Update 2022-02 [Member] \| Commercial Portfolio Segment [Member] \| Construction Loans [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Financing Receivable Allowance For Credit Losses						0
Accounting Standard Update 2022-02 [Member] \| Commercial Portfolio Segment [Member] \| Mortgage Receivable [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Financing Receivable Allowance For Credit Losses						0
Accounting Standard Update 2022-02 [Member] \| Consumer Portfolio Segment [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Financing Receivable Allowance For Credit Losses						$ 53