DEPOSITS - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2023
Statistical Disclosure for Banks [Abstract]
Demand and savings deposits	$ 438.7
Maturity deposits decline	1,100.0
Non-maturity deposits decline	623.6
Deposits exceeding FDIC amount	$ 8,100.0	$ 8,600.0

The net cash inflow or outflow for the increase (decrease) in the beginning and end of period deposits balances.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482740/230-10-45-8

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 942
-SubTopic 230
-Section 45
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481160/942-230-45-1

Name:	us-gaap_IncreaseDecreaseInDeposits
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration