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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Oct. 31, 2025 USD ($)	Jun. 30, 2026 USD ($) GW	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($) GW	Jun. 30, 2025 USD ($)	Dec. 31, 2025 USD ($) GW
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Allowance for credit losses related to trade accounts receivables \| $		$ 5.6		$ 5.6		$ 5.6
Deferred revenue recognized \| $				52.2	$ 40.2
Purchase of equity investments without readily determinable fair value \| $	$ 5.0
Carrying value of the SAFE investment \| $		5.0		5.0		$ 5.0
Unrealized gain on derivatives \| $		$ 0.8	$ 0.5	$ 1.5	$ 0.6
PV Solar Modules
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Contract with customer, amount of power for future sales		5.4		5.4
Amount of power expected to be sold remainder of year		1.5		1.5
Amount of power expected to be sold in 2027		1.3		1.3
Amount of power expected to be sold, thereafter		2.6		2.6
Revenue, remaining performance obligation, prepayment percentage		0.50		0.50
Revenue, remaining performance obligation, percentage		50.00%		50.00%
Revenue, remaining performance obligation, payment terms				30 days
Customer One \| Revenue from Contract with Customer Benchmark \| Customer Concentration Risk
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Concentration risk, percentage				100.00%	64.00%
Customer One \| Accounts Receivable \| Customer Concentration Risk
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Concentration risk, percentage				100.00%		100.00%
Customer Two \| Revenue from Contract with Customer Benchmark \| Customer Concentration Risk
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Concentration risk, percentage					35.00%
Wilmer, TX
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Power generation capacity of solar modules (in GW)						5
Milam County, Texas
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Power generation capacity of solar modules (in GW)						2.1