LONG-TERM DEBT, NET (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Sep. 30, 2021	Feb. 18, 2020
Debt Instrument [Line Items]
Debt issuance costs, net	$ (2,823)	$ (3,599)
Total long-term debt, net of issuance costs	307,927	200,605
Line of Credit \| Revolving lines of credit to banks under the Senior Secured Credit Facility
Debt Instrument [Line Items]
Long-term debt	207,406	104,396
Exchangeable Notes \| 1% Exchangeable Senior Notes due 2025
Debt Instrument [Line Items]
Long-term debt	103,344	$ 99,808
Debt issuance costs, net	$ (2,113)
Stated interest rate (percent)	1.00%		1.00%

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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