DERIVATIVES AND HEDGING ACTIVITIES - Cash Flow Hedges Narrative (Details)	3 Months Ended
Mar. 31, 2025 USD ($) DerivativeInstrument	Mar. 31, 2024 DerivativeInstrument	Dec. 31, 2024 USD ($)
DERIVATIVES AND HEDGING ACTIVITIES
Interest rate cash flow hedge gain (loss) to be reclassified during next 12 months, net	$ 5,100,000
Number of derivatives terminated \| DerivativeInstrument	0	0
Collateral received against obligations in net asset position	$ 7,400,000		$ 9,100,000
Designated as Hedging Instrument \| Cash Flow Hedging
DERIVATIVES AND HEDGING ACTIVITIES
Clearing house related to the fair value derivatives	3,000,000		856,000
Loan level interest rate swaps with third party counterparties (assets) \| Designated as Hedging Instrument
DERIVATIVES AND HEDGING ACTIVITIES
Collateral already posted, aggregate fair value	$ 0		$ 0

The number of derivative instruments held terminated.

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- Definition

Amount payable to other broker-dealer and clearing organization, including, but not limited to, security failed-to-receive, deposit received for security loaned, open transaction, and floor-brokerage payable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Rule 15c3-1
-Number 240
-Section 15c3-1
-Publisher SEC

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 940
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-Name Accounting Standards Codification
-Section 45
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481833/940-20-45-3

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- Definition

The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4H
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4H

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- Definition

Amount of obligation to return cash collateral under master netting arrangements that have not been offset against derivative assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 55
-Paragraph 13
-SubTopic 20
-Topic 210
-Publisher FASB
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-Topic 210
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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
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The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months.

+ References

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-Section 50
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