VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Valuation allowance for deferred tax assets
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
BEGINNING BALANCE	$ 5,747	$ 22,241	$ 23,613
ADDITIONS CHARGED TO EXPENSE	(126)	(16,494)	(1,372)
OTHER	0	0	0
ENDING BALANCE	5,621	5,747	22,241
Allowance for doubtful accounts
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
BEGINNING BALANCE	11,036	19,379	24,652
ADDITIONS CHARGED TO EXPENSE	1,229	1,570	2,401
OTHER	(3,759)	(9,913)	(7,674)
ENDING BALANCE	$ 8,506	$ 11,036	$ 19,379