GOODWILL AND OTHER INTANGIBLES - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Carry amount of intangible assets related to foreign currency translation	$ 1,589
Amortization expense	5,581	$ 5,653	$ 11,137	$ 11,277
Estimated amortization expense, remainder of fiscal year	11,037		11,037
Estimated amortization expense, year one	22,174		22,174
Estimated amortization expense, year two	22,174		22,174
Estimated amortization expense, year three	22,174		22,174
Estimated amortization expense, year four	22,174		22,174
Estimated amortization expense, year five	21,354		21,354
Estimated amortization expense, thereafter	$ 214,226		$ 214,226