BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property, Plant and Equipment (Details) - USD ($)	3 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2019
Property, plant and equipment
Impairment of property, plant and equipment	$ 9,500,000	$ 0
Building
Property, plant and equipment
Useful lives		30 years
Machinery and equipment | Minimum
Property, plant and equipment
Useful lives		3 years
Machinery and equipment | Maximum
Property, plant and equipment
Useful lives		7 years
Building and leasehold improvements | Minimum
Property, plant and equipment
Useful lives		3 years
Building and leasehold improvements | Maximum
Property, plant and equipment
Useful lives		15 years
Furniture and fixtures | Minimum
Property, plant and equipment
Useful lives		5 years
Furniture and fixtures | Maximum
Property, plant and equipment
Useful lives		8 years
Software | Minimum
Property, plant and equipment
Useful lives		3 years
Software | Maximum
Property, plant and equipment
Useful lives		5 years