GOODWILL AND OTHER INTANGIBLE ASSETS (Narrative) (Details) $ in Millions	3 Months Ended
Dec. 31, 2020 USD ($)
Core deposit intangible
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill and core deposit intangibles	$ 0.0

Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill.

No definition available.

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