GENERAL AND BASIS OF PRESENTATION - Business Combination - Enel purchase transaction, details (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Jan. 04, 2024	Dec. 31, 2023
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]
Goodwill	$ 151,345		$ 151,345			$ 90,544
Electricity
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]
Goodwill	146,700	$ 85,600	146,700	$ 85,600
Enel Green Power North America ("EGPNA")
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]
Trade receivables and others					$ 4,400
Deferred income taxes					3,100
Property, plant and equipment and construction-in-process					197,700
Operating lease right of use					1,200
Other long-term assets					200
Intangible assets					23,600
Total assets acquired					230,200
Accounts payable, accrued expenses and others					1,500
Other current liabilities					1,800
Operating lease liabilities					1,200
Other long-term liabilities					5,000
Asset retirement obligation					6,800
Total liabilities assumed					16,300
Total assets acquired, and liabilities assumed, net					213,900
Goodwill					$ 60,700
Business acquisition, pro forma revenue	211,800	216,100	648,900	614,100
Net income attributable to the Company's stockholders	22,100	32,800	84,300	80,100
Enel Green Power North America ("EGPNA") | Electricity
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]
Business acquisition, pro forma revenue	$ 164,600	$ 165,300	$ 522,100	$ 508,900