SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Interest Rate Swap Agreement and Credit Risk (Details) - USD ($) $ in Thousands			12 Months Ended
		Oct. 23, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Concentration Risk [Line Items]
Proceeds from derivative instrument	[1]		$ 3,715	$ 0	$ 0
Customer Concentration Risk | Revenue | Pastoria Energy Facility, LLC
Concentration Risk [Line Items]
Percentage of revenue			11.00%	6.00%	8.00%
Interest Rate Swap
Concentration Risk [Line Items]
Proceeds from derivative instrument		$ 3,715

[1] The Company had an interest rate swap agreement with Bank of America, N.A. to reduce its exposure to fluctuations in the floating interest rate tied to SOFR under the term note. The hedging relationship qualified as an effective cash flow hedge and was recorded at fair value. On October 23, 2023, the Company terminated the interest rate swap, and received a $3,715,000 cash termination fee from Bank of America, N.A.