INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Provision (benefit) for income taxes	$ (27,904)	$ 24,638	$ (8,586)	$ 31,851
Income (loss) before taxes from continuing operations	(90,159)	82,798	(22,139)	106,715
Effective income tax rate reconciliation, adjustments related to strategic review cost, amount	6,190		14,422
Effective income tax rate reconciliation, adjustments related to strategic review cost, net of tax	4,658		10,880
Restructuring charges	78,334	4,766	78,334	6,482
Restructuring charges, net of tax	58,529	3,496	58,529	4,826
Effective income tax rate reconciliation, impairment losses	100,000		100,000
Effective income tax rate reconciliation, impairment losses, net of tax	74,256		74,256
Effective income tax rate reconciliation, proxy contest cost	614	4,661	2,117	6,952
Effective income tax rate reconciliation, proxy contest cost, net of tax	471	3,591	1,624	5,359
Other tax expense (benefit) that affect comparability	$ (8,723)	(683)	$ (9,056)	(1,574)
Effective income tax rate reconciliation, acquisition cost		6,708		9,303
Effective income tax rate reconciliation, acquisition cost, net of tax		$ 6,146		$ 8,149
Effective tax rate	29.50%	28.50%	29.40%	29.10%
Effective income tax rate reconciliation, disposition of assets			$ (10,852)
Effective income tax rate reconciliation, disposition of assets, net of tax			$ (8,323)
Effective income tax rate reconciliation, acquired inventory sold		$ 2,701		$ 2,701
Effective income tax rate reconciliation, acquired inventory sold, net of tax		$ 2,007		$ 2,007