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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. Excludes net investment in lease.

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

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Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease.

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Amount of expected credit loss for credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, financial guarantee not accounted for as insurance. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

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The net cash outflow or inflow for other changes, net, in the loan and lease balances held for investment purposes that are not separately disclosed. Includes cash payments and proceeds associated with (a) loans held-for-investment, (b) leases held-for-investment, and (c) both.

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ALLOWANCE FOR CREDIT LOSSES FOR LOANS AND FINANCE LEASES - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Financing Receivable Allowance For Credit Losses [Line Items]
Increase (decrease) in ACL	$ 3,400
Provision for credit losses - (benefit) expense	24,837	$ 12,917
Net charge-offs	21,400	11,200
Recoveries	6,700	18,171
Off-Balance Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal)	(63)	281
Off-Balance Sheet, Credit Loss, Liability	3,080	4,919	$ 3,080	$ 3,143	$ 4,638
Charge-offs	28,210	29,339
Net disbursements on loans held for investment	(32,663)	156,118
Allowance for credit losses	247,269	263,592	247,269	243,942	261,843
Qualitative Adjustments due to Uncertainty in Economic Environment [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Increase (decrease) in ACL	2,700
Residential Portfolio Segment [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Increase (decrease) in ACL	(900)
Provision for credit losses - (benefit) expense	1,004	(464)
Recoveries	217	272
Charge-offs	235	516
Allowance for credit losses	41,640	56,689	41,640	40,654	57,397
Residential Portfolio Segment [Member] \| US [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	(4,700)
Commercial Portfolio Segment [Member] \| Construction Loans [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Provision for credit losses - (benefit) expense	(421)	571
Recoveries	14	10
Charge-offs	0	0
Allowance for credit losses	3,417	6,186	3,417	3,824	5,605
Commercial Portfolio Segment [Member] \| Commercial and Industrial Sector [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Provision for credit losses - (benefit) expense	3,353	(3,160)
Recoveries	154	5,119
Charge-offs	77	532
Allowance for credit losses	36,464	35,423	36,464	33,034	33,996
Commercial Portfolio Segment [Member] \| US [Member] \| Construction Loans [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Charge-offs	0
Commercial Portfolio Segment [Member] \| US [Member] \| Commercial and Industrial Sector [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			(2,200)
Provision for credit losses - (benefit) expense	19,245	15,980
Recoveries	6,275	12,730
Charge-offs	27,898	28,291
Allowance for credit losses	141,605	132,633	$ 141,605	$ 143,983	$ 132,214
Consumer Portfolio Segment [Member] \| Automobile Loan [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Charge-offs	8,730
Consumer Portfolio Segment [Member] \| Bulk Sale Of Nonaccrual Loans [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Increase (decrease) in net charge-offs	5,000
Charge-offs	2,400	$ 9,500
Consumer Portfolio Segment [Member] \| US [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Charge-offs	16
Consumer Portfolio Segment [Member] \| US [Member] \| Automobile Loan [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Charge-offs	$ 16