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INCOME TAXES - Effective Income Tax Rates as Compared to the U.S. Federal Income Tax Rate (Details)	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Effective income tax rates as compared to the U.S. Federal income tax rate
U.S. Federal income tax rate	21.00%	21.00%	21.00%
Effect of foreign taxes	(54.60%)	1.30%	2.10%
State income taxes, net of federal tax benefit	(9.60%)	2.20%	2.40%
Other impact of foreign operations	(15.80%)	1.70%	0.20%
Non-deductible meals and entertainment	(5.60%)	0.90%	0.60%
Equity compensation	(0.60%)	(0.10%)	(0.10%)
Excess officer's compensation	(4.80%)	0.80%	0.40%
Goodwill impairment	(54.60%)	0.00%	0.00%
Other	8.80%	0.70%	0.20%
Effective income tax rate	(115.80%)	28.50%	26.80%

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to officer's compensation.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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