PROPERTY, PLANT AND EQUIPMENT - Summary of Property Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Sep. 30, 2022
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	$ 711,918	$ 706,961
Accumulated depreciation and amortization	(421,413)	(412,400)
Total	290,505	294,561
Land, building and building improvements
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	157,626	159,693
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	518,478	511,779
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	$ 35,814	$ 35,489