LEGAL (Details) $ in Millions		3 Months Ended
	May 01, 2024 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2024	Aug. 31, 2020 $ / MWh
Commitments and Contingencies Disclosure [Abstract]
Notice period for contract termination payment			2 years
Amount received for contract termination payment	$ 709.4
Exit fee related to contract termination payment	627.2
Patronage capital credit related to contract termination payment	$ 82.2
Soft-cap price for short term spot market sales (per megawatt hour) | $ / MWh				1,000
Funds in excess of soft-cap		$ 2.9
Energy sales refunded to third party		$ 0.4