OUR BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property, Plant and Equipment (Details)	12 Months Ended
	Sep. 30, 2020
Land improvements
Property, Plant and Equipment [Line Items]
Estimated Useful Lives	10 years
Buildings and improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives	5 years
Buildings and improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives	40 years
Machinery and equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives	3 years
Machinery and equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives	10 years
Furniture and fixtures | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives	3 years
Furniture and fixtures | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives	7 years
Software | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives	3 years
Software | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives	10 years