GOODWILL AND OTHER INTANGIBLES - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible asset impairment	$ 0	$ 100,000	$ 0	$ 100,000	$ 0
Indefinite-lived intangible asset (excluding goodwill) impairment, net of tax		$ 74,256
Carry amount of intangible assets related to foreign currency translation	7,122
Amortization expense	5,669		$ 5,514	16,946	$ 12,371
Estimated amortization expense, remainder of fiscal year	4,839			4,839
Estimated amortization expense, year one	21,305			21,305
Estimated amortization expense, year two	21,305			21,305
Estimated amortization expense, year three	21,305			21,305
Estimated amortization expense, year four	21,305			21,305
Estimated amortization expense, year five	21,305			21,305
Estimated amortization expense, thereafter	$ 236,311			$ 236,311