DERIVATIVE FINANCIAL INSTRUMENTS - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2026	Sep. 30, 2025
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative, notional amount	$ 168.1	$ 136.6
Margin accounts cash collateral	2.3
Cash collateral posted	$ 0.6	$ 17.3

Amount of obligation to return cash collateral under master netting arrangements that have not been offset against derivative assets.

Amount of right to receive cash collateral under master netting arrangements that have not been offset against derivative liabilities.