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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 |  |  |  |

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