INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Operating Loss Carryforwards [Line Items]
Income taxes paid, net	$ 1,843	$ 7,146
Effective income tax rate reconciliation, GILTI, amount	0
Uncertain tax position	1,861
Acquired foreign net operating losses	2,222
Domestic Tax Jurisdiction
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards allowance	7,114	4,618
Operating loss carryforwards	52,194
Foreign Tax Jurisdiction
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards allowance	11,093	$ 11,757
Operating loss carryforwards	41,644
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Loss carryforwards which expires	108,067
Operating loss carry forward indefinitely	$ 31,365