SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Property Plant and Equipment (Details)	12 Months Ended
	Sep. 30, 2020
Minimum | Buildings, building components and land improvements
Property, Plant and Equipment [Line Items]
Estimated useful lives (in years)	10 years
Minimum | Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives (in years)	3 years
Minimum | Software
Property, Plant and Equipment [Line Items]
Estimated useful lives (in years)	2 years
Maximum | Buildings, building components and land improvements
Property, Plant and Equipment [Line Items]
Estimated useful lives (in years)	40 years
Maximum | Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives (in years)	5 years
Maximum | Software
Property, Plant and Equipment [Line Items]
Estimated useful lives (in years)	10 years