PREMISES AND EQUIPMENT - Narrative (Details) $ in Millions	3 Months Ended
Dec. 31, 2023 USD ($)
Property, Plant and Equipment [Abstract]
Purchase of new regional headquarters	$ 16.7

Amount of acquisition of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

No definition available.

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