DERIVATIVES AND HEDGING ACTIVITIES - Cash Flow Hedges Narrative (Details) $ in Millions	9 Months Ended
Sep. 30, 2024 USD ($) DerivativeInstrument	Sep. 30, 2023 DerivativeInstrument	Dec. 31, 2023 USD ($)
DERIVATIVES AND HEDGING ACTIVITIES
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net	$ 4.4
Number of derivatives terminated \| DerivativeInstrument	0	0
Collateral received against obligations in net asset position	$ 8.9		$ 13.5
Designated as Hedging Instrument \| Cash Flow Hedging
DERIVATIVES AND HEDGING ACTIVITIES
Clearing house related to the fair value derivatives	$ 8.0		$ 4.9

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

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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
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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.

+ References

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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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