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REVENUE - Electric Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Electric Operations
Disaggregation of Revenue [Line Items]
Revenues	$ 85,943	$ 60,681
Delivered energy
Disaggregation of Revenue [Line Items]
Revenues	72,136	48,908
Delivered energy | Electric Operations
Disaggregation of Revenue [Line Items]
Revenues	72,136	48,908
Energy Capacity
Disaggregation of Revenue [Line Items]
Revenues	13,807	11,773
Energy Capacity | Electric Operations
Disaggregation of Revenue [Line Items]
Revenues	$ 13,807	$ 11,773

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