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LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	$ 4,733,420,000		$ 4,733,420,000		$ 4,608,956,000
Allowance for credit losses	972,000		972,000
Provision for credit loss expense	4,338,000	$ 2,591,000	5,894,000	$ 3,911,000
Provision for (benefit from) unfunded commitments	63,000	$ 87,000	180,000	$ 63,000
Financing receivable, excluding accrued interest, modified, subsequent default	0
Syndicated Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	78,936,000		78,936,000		79,882,000
Unfunded Loan Commitment
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable excluding accrued interest modified accumulated			0
Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	709,896,000		709,896,000		718,775,000
Commercial and Industrial | Syndicated Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	$ 78,900,000		$ 78,900,000		$ 79,900,000

X

- Definition

Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal) And Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal)

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

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Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

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Amortized cost excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty.

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Amount of expense (reversal of expense) for expected credit loss for off-balance sheet credit exposure. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

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