The quantified amount of the future effect on cash flows.

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Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.

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RESTRUCTURING CHARGES - Narrative (Details) $ in Thousands		3 Months Ended			6 Months Ended
RESTRUCTURING CHARGES - Narrative (Details) $ in Thousands	Nov. 12, 2020 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Mar. 31, 2021 USD ($)	Mar. 31, 2022 USD ($) position	Mar. 31, 2021 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 4,766		$ 7,502	$ 6,482	$ 10,581
Payments for restructuring		3,005	$ 1,442
Non-cash charges		1,766	289
Consumer and Professional Products
Restructuring Cost and Reserve [Line Items]
Restructuring charges				7,502		10,581
Impairment charge, manufacturing assets					1,766
Inventory write down					$ 289	2,690
Reduction of headcount \| position					20
Next-generation Business Platform \| Consumer and Professional Products
Restructuring Cost and Reserve [Line Items]
Annual cash savings					$ 25,000
Payments for restructuring					4,427	7,891
Non-cash charges					2,055	2,690
Minimum \| Next-generation Business Platform \| Consumer and Professional Products
Restructuring Cost and Reserve [Line Items]
Annual cash savings	$ 30,000
Maximum \| Next-generation Business Platform \| Consumer and Professional Products
Restructuring Cost and Reserve [Line Items]
Annual cash savings	35,000
One-time charges \| Next-generation Business Platform \| Consumer and Professional Products
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	65,000	50,000			50,000
Capital investments \| Next-generation Business Platform \| Consumer and Professional Products
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	$ 65,000	15,000			15,000
Personnel related costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges		1,878		722	2,138	1,084
Payments for restructuring		1,883	275
Non-cash charges		0	0
Personnel related costs \| Next-generation Business Platform \| Consumer and Professional Products
Restructuring Cost and Reserve [Line Items]
Payments for restructuring					2,138	1,084
Facilities & Exit Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges		1,122		$ 4,283	2,289	6,807
Payments for restructuring		1,122	1,167
Non-cash charges		$ 0	$ 0
Facilities & Exit Costs \| Next-generation Business Platform \| Consumer and Professional Products
Restructuring Cost and Reserve [Line Items]
Payments for restructuring					$ 2,289	$ 6,807