GOODWILL AND OTHER INTANGIBLES - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible asset impairment	$ 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	6,007
Amortization expense	5,653	$ 4,470	11,277	$ 6,857
Estimated amortization expense, remainder of fiscal year	10,508		10,508
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	$ 235,709		$ 235,709