DERIVATIVE INSTRUMENTS - BROKER MARGIN DEPOSITS (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Sep. 30, 2022
Natural Gas Distribution | Assets, Current
Derivative [Line Items]
Broker margin - current assets	$ 23,846	$ 26,138
Energy Services | Assets, Current
Derivative [Line Items]
Broker margin - current assets	69,327	68,123
Energy Services | Liabilities, Current
Derivative [Line Items]
Broker margin - Current liabilities	$ 7,297	$ 0