INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Income Tax Disclosure [Abstract]
Provision (benefit) for income taxes	$ 24,430	$ (27,904)	$ 42,395	$ (8,586)
Income (loss) before taxes	88,573	(90,159)	148,715	(22,139)
Effective income tax rate reconciliation, adjustments related to strategic review cost, amount	2,676	6,190	7,334	14,422
Effective income tax rate reconciliation, adjustments related to strategic review cost, net of tax	1,997	4,658	5,497	10,880
Restructuring charges	2,401	78,334	14,801	78,334
Restructuring charges, net of tax	1,769	58,529	10,982	58,529
Effective income tax rate reconciliation, tax gain on disposition of assets	11		558	10,852
Effective income tax rate reconciliation, tax gain on disposition of assets, net of tax	9		415	8,323
Other tax expense (benefit) that affect comparability	$ (390)	(8,723)	$ 393	(9,056)
Effective income tax rate reconciliation, impairment charges		100,000		100,000
Effective income tax rate reconciliation, impairment charges, net of tax		74,256		74,256
Effective income tax rate reconciliation, proxy contest cost		614		2,117
Effective income tax rate reconciliation, proxy contest cost, net of tax		$ 471		$ 1,624
Effective tax rate	27.90%	29.50%	27.90%	29.40%