DEBT AND CREDIT FACILITIES - Letters of Credit Under the Domestic Facilities (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Sep. 30, 2024
Debt Instrument [Line Items]
Letters of credit outstanding amount	$ 36,623	$ 38,245
Backstopped letters of credit
Debt Instrument [Line Items]
Letters of credit outstanding amount	1,200	750
Surety backstopped letters of credit
Debt Instrument [Line Items]
Letters of credit outstanding amount	12,017	8,742
Letters of credit subject to currency revaluation
Debt Instrument [Line Items]
Letters of credit outstanding amount	4,395	4,400
Performance letters of credit
Debt Instrument [Line Items]
Letters of credit outstanding amount	21,258	15,695
Financial letters of credit
Debt Instrument [Line Items]
Letters of credit outstanding amount	$ 15,365	$ 22,550

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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