BASIS OF PRESENTATION - Narrative (Details) - USD ($) $ in Millions			9 Months Ended
Feb. 24, 2023	Feb. 21, 2023	Sep. 30, 2023	Sep. 30, 2022
Accounting Policies [Abstract]
Noninterest income			$ 17.8	$ 11.5
Litigation settlement, expense		$ 1.0	1.0	5.1
Proceeds from plan of reorganization, recoupment of collateral			$ 5.0
Litigation settlement, amount awarded from other party	$ 17.8			$ 5.2

Proceeds From Plan Of Reorganization, Recoupment Of Collateral

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- References

No definition available.

+ Details

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- Definition

Amount awarded from other party in judgment or settlement of litigation.

+ References

No definition available.

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- Definition

Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.

+ References

No definition available.

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- Definition

Amount of revenue earned, classified as other, excluding interest income.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-03(1)(e))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483621/220-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(13))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1

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