TAX MONETIZATION TRANSACTIONS (Details) $ in Thousands								12 Months Ended
	Jul. 10, 2025 USD ($) geothermalPowerPlant	Jul. 31, 2024 USD ($)	Oct. 27, 2023 USD ($)	Dec. 23, 2022 USD ($)	Oct. 25, 2021 USD ($)	Aug. 14, 2019 USD ($)	May 17, 2018 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	May 20, 2025 USD ($)
Investments in and Advances to Affiliates, Activity [Line Items]
Noncontrolling interest, decrease from purchase of interests									$ 1,418
Income generated from expected sale of transferable production tax credits								$ 17,900	23,400
Income tax credits and adjustments								$ 44,100	47,700
Noncontrolling Interest
Investments in and Advances to Affiliates, Activity [Line Items]
Noncontrolling interest, decrease from purchase of interests									1,697
Additional Paid-in Capital
Investments in and Advances to Affiliates, Activity [Line Items]
Noncontrolling interest, decrease from purchase of interests									$ (279)
Opal Geo
Investments in and Advances to Affiliates, Activity [Line Items]
Business combination, consideration transferred		$ 9,800
Opal Geo | Noncontrolling Interest
Investments in and Advances to Affiliates, Activity [Line Items]
Noncontrolling interest, decrease from purchase of interests		1,700
Opal Geo | Additional Paid-in Capital
Investments in and Advances to Affiliates, Activity [Line Items]
Noncontrolling interest, decrease from purchase of interests		$ (500)
Common Class B | Opal Geo
Investments in and Advances to Affiliates, Activity [Line Items]
Business acquisition, percentage of voting interests acquired		100.00%
Tungsten Mountain
Investments in and Advances to Affiliates, Activity [Line Items]
Partnership agreement, initial purchase price							$ 33,400
Partnership agreement, expected additional installments							$ 13,000
Partnership agreement, percentage of distributable cash flow generated to private investor if target return not reached							100.00%
Partnership agreement, percentage of taxable income to private investor if target return not reached							99.00%
Partnership agreement, percentage of taxable income to private investor if target return not reached, no longer generating PTCs							5.00%
Partnership agreement, percentage of distributable cash flow generated							97.50%
Partnership agreement, percentage of taxable income							95.00%
Heber Geothermal Power Plants | Ormat Nevada
Investments in and Advances to Affiliates, Activity [Line Items]
Number of contracted geothermal power plants, business combination | geothermalPowerPlant	2
Partnership agreement, initial purchase price	$ 77,100
Partnership agreement, expected additional installments	$ 25,700
Partnership agreement, percentage of distributable cash and taxable income generated	95.00%
Partnership agreement, percentage of distributable cash flow generated to private investor if target return not reached	75.00%
Partnership agreement, percentage of taxable income to private investor if target return not reached	99.00%
Partnership agreement, initial purchase price, allocated to noncontrolling interest	$ 8,100
Partnership agreement, initial purchase price, allocated to tax benefits	$ 69,000
Lower Rio and Arrowleaf storage facilities
Investments in and Advances to Affiliates, Activity [Line Items]
Partnership agreement, initial purchase price, allocated to noncontrolling interest										$ 3,900
Partnership agreement, initial purchase price, allocated to tax benefits										62,900
Partnership agreement, purchase price										$ 62,900
Purchase option, percent of the aggregate capital contributions										5.00%
North Valley Geothermal Power Plant | Ormat Nevada
Investments in and Advances to Affiliates, Activity [Line Items]
Partnership agreement, initial purchase price			$ 43,100
Partnership agreement, expected additional installments			$ 6,100
Partnership agreement, percentage of distributable cash and taxable income generated			97.50%
Partnership agreement, percentage of distributable cash flow generated to private investor if target return not reached			100.00%
Partnership agreement, percentage of taxable income to private investor if target return not reached			99.00%
Partnership agreement, initial purchase price, allocated to noncontrolling interest			$ 300
Partnership agreement, initial purchase price, allocated to tax benefits			$ 42,800
Partnership agreement, percentage of taxable income to private investor if target return not reached, no longer generating PTCs			5.00%
CD4 Geothermal Power Plant | Mammoth Complex
Investments in and Advances to Affiliates, Activity [Line Items]
Partnership agreement, initial purchase price				$ 50,300
Partnership agreement, expected additional installments				$ 7,300
Partnership agreement, percentage of distributable cash flow generated to private investor if target return not reached				75.00%
Partnership agreement, percentage of taxable income to private investor if target return not reached				99.00%
Partnership agreement, initial purchase price, allocated to noncontrolling interest				$ 3,900
Partnership agreement, initial purchase price, allocated to tax benefits				$ 46,400
Partnership agreement, percentage of taxable income to private investor if target return not reached, no longer generating PTCs				5.00%
Partnership agreement, percentage of tax attributes attributable to investor				99.00%
Partnership agreement, percentage of distributable cash flow generated				97.50%
Partnership agreement, percentage of taxable income				95.00%
Steamboat Hills Repower Geothermal Power Plant | Ormat Nevada Inc.
Investments in and Advances to Affiliates, Activity [Line Items]
Partnership agreement, initial purchase price					$ 38,900
Partnership agreement, expected additional installments					$ 5,300
Partnership agreement, percentage of distributable cash flow generated to private investor if target return not reached					100.00%
Partnership agreement, percentage of taxable income to private investor if target return not reached					99.00%
Partnership agreement, percentage of taxable income to private investor if target return not reached, no longer generating PTCs					5.00%
Partnership agreement, percentage of distributable cash flow generated					97.50%
Partnership agreement, percentage of taxable income					95.00%
McGinness Plant
Investments in and Advances to Affiliates, Activity [Line Items]
Partnership agreement, initial purchase price						$ 59,300
Partnership agreement, expected additional installments						$ 9,000
Partnership agreement, percentage of distributable cash flow generated to private investor if target return not reached						100.00%
Partnership agreement, percentage of taxable income to private investor if target return not reached						99.00%
Partnership agreement, percentage of taxable income to private investor if target return not reached, no longer generating PTCs						5.00%
Partnership agreement, percentage of distributable cash flow generated						97.50%
Partnership agreement, percentage of taxable income						95.00%
McGinness Plant | Maximum
Investments in and Advances to Affiliates, Activity [Line Items]
Partnership agreement, expected additional installments						$ 22,000