LONG-TERM DEBT, CREDIT AGREEMENTS AND FINANCE LIABILITY - Narrative (Details) $ / shares in Units, $ in Thousands, shares in Millions, ₪ in Billions																						1 Months Ended		12 Months Ended
	Sep. 26, 2024 USD ($) payment	Jul. 15, 2024 USD ($)	May 22, 2024 USD ($)	Apr. 04, 2024 USD ($)	Mar. 28, 2024 USD ($) geothermalPowerPlant	Jan. 02, 2024 USD ($)	Nov. 01, 2023 USD ($)	Feb. 27, 2023 USD ($)	Nov. 28, 2022 USD ($)	Jun. 27, 2022 USD ($)	Jun. 22, 2022 USD ($) tradingDay $ / shares shares	Apr. 12, 2022 USD ($)	Sep. 02, 2021 USD ($)	Jul. 15, 2021 USD ($)	Jul. 12, 2021 USD ($)	Apr. 09, 2019 USD ($)	Apr. 04, 2019 USD ($)	Mar. 25, 2019 USD ($)	Mar. 22, 2018 USD ($)	Dec. 21, 2016 USD ($)	Feb. 29, 2012	Oct. 31, 2018 MWh	May 31, 2013	Dec. 31, 2024 USD ($) $ / shares	Dec. 31, 2023 USD ($) $ / shares	Dec. 31, 2022 USD ($)	Nov. 20, 2024	Nov. 19, 2024 USD ($)	Sep. 30, 2023	Mar. 14, 2023 $ / shares	Jan. 28, 2022	Dec. 31, 2021 USD ($)	Jul. 01, 2020 USD ($)	Jul. 01, 2020 ILS (₪)	Apr. 30, 2020 USD ($)	Apr. 29, 2019	Jan. 04, 2019 USD ($)	Apr. 30, 2018 USD ($)	Nov. 29, 2016 USD ($)	Oct. 20, 2016 USD ($)	Aug. 29, 2014 USD ($)	Aug. 23, 2012 USD ($)	Oct. 31, 2011 USD ($)	Sep. 30, 2011 USD ($)	Aug. 31, 2011 USD ($)
Debt Instrument [Line Items]
Proceeds from revolving credit lines with banks																								$ 185,500	$ 55,000	$ 0
Long-term debt																								2,344,746
Proceeds from issuance of convertible notes, net of transaction costs																								$ 44,041	$ 0	419,698
Common stock, par or stated value per share (in dollars per share) | $ / shares											$ 0.001													$ 0.001	$ 0.001					$ 0.001
Amortization of debt issuance costs																								$ 5,900	$ 5,900	4,200
Purchase of capped call transactions																										24,538
Letters of credit outstanding, amount																								286,600
Stockholders' equity attributable to parent, ending balance																								2,425,129	2,315,427
Stockholders' equity, including portion attributable to noncontrolling interest																								2,550,932	2,440,987	2,020,975						$ 1,998,461
Cash dividends paid																								$ 29,109	$ 28,412	27,143
Covenant requirement minimum
Debt Instrument [Line Items]
Debt to earnings before interest tax depreciation and amortization ratio																								4.03
Stockholders' equity attributable to parent, ending balance																								$ 750,000
Percentage of company assets																								25.00%
Covenant requirement
Debt Instrument [Line Items]
Percentage of company assets																								45.00%
Stockholders' equity, including portion attributable to noncontrolling interest																								$ 2,550,900
Call Option [Member]
Debt Instrument [Line Items]
Option indexed to issuer's equity, shares (in shares) | shares											4.8
Option indexed to issuer's equity, strike price (in dollars per share) | $ / shares											$ 90.27
Option indexed to issuer's equity, cap price | $ / shares											$ 107.63
Option indexed to issuer's equity, premium percentage											55.00%
Purchase of capped call transactions											$ 24,500
Revolving Credit Facility
Debt Instrument [Line Items]
Short-Term Debt																								$ 0
Convertible Senior Notes
Debt Instrument [Line Items]
Debt instrument, face amount										$ 431,250	$ 375,000
Annual interest rate		2.50%								2.50%	2.50%
Proceeds from issuance of convertible notes, net of transaction costs										$ 56,250
Debt instrument, convertible, threshold trading days | tradingDay											20
Debt instrument, convertible, threshold consecutive trading days | tradingDay											30
Debt instrument, convertible, threshold percentage of stock price trigger											130.00%
Debt instrument, convertible, conversion price (in dollars per share) | $ / shares											$ 90.27													$ 90.27	$ 90.27
Debt instrument, convertible, conversion shares											11.0776
Debt instrument, redemption price (in percentage)											100.00%
Debt issuance costs, gross																								$ 11,600
Amortization of debt issuance costs																								$ 2,300	$ 2,300	$ 1,100
Debt instrument, interest rate, effective percentage																								3.10%
Convertible Senior Notes | First circumstance, Convertible Senior Notes
Debt Instrument [Line Items]
Debt instrument, convertible, threshold trading days | tradingDay											20
Debt instrument, convertible, threshold consecutive trading days | tradingDay											30
Debt instrument, convertible, threshold percentage of stock price trigger											130.00%
Debt instrument, convertible, conversion price (in dollars per share) | $ / shares											$ 90.27
Convertible Senior Notes | Second circumstance, Convertible Senior Notes
Debt Instrument [Line Items]
Debt instrument, convertible, threshold consecutive trading days | tradingDay											5
Debt instrument, convertible, consecutive business day after trading period											5 days
Debt instrument, convertible, maximum percentage of stock price trigger											98.00%
Mammoth Pacific, LLC | Project Subsidiaries, Geothermal Power Plants
Debt Instrument [Line Items]
Equity ownership, excluding consolidated entity and equity method investee (in percentage)					100.00%
Number of contracted geothermal power plants, business combination | geothermalPowerPlant					4
Maximum | Covenant requirement minimum
Debt Instrument [Line Items]
Debt to earnings before interest tax depreciation and amortization ratio																								6.0
Hapoalim 2024 Loan
Debt Instrument [Line Items]
Debt instrument, face amount						$ 75,000																		$ 75,000
Debt instrument, covenant, maximum debt to EBITDA ratio						6.0
Debt instrument, covenant, minimum equity capital, amount						$ 75,000
Debt instrument, covenant, equity capital to total assets (in percentage)						25.00%
Annual interest rate																								6.60%
Long-term debt, gross																								$ 68,000
HSBC Bank 2024 Loan
Debt Instrument [Line Items]
Debt instrument, face amount						$ 125,000																		$ 125,000
Debt instrument, covenant, maximum debt to EBITDA ratio						6.0
Debt instrument, covenant, minimum equity capital, amount						$ 750,000
Debt instrument, covenant, equity capital to total assets (in percentage)						25.00%
Debt instrument, number of semi-annual payments						7
Debt instrument, periodic payment, total						$ 12,500
Debt instrument periodic payment terms final principal payment to be paid						$ 37,500
Debt instrument, term						4 years
Debt instrument, basis spread on variable rate						2.25%
Annual interest rate																								2.25%
Long-term debt, gross																								$ 112,500
HSBC Bank 2024 Loan | Interest rate swap derivative
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate						3.90%
Discount 2024 Loan
Debt Instrument [Line Items]
Debt instrument, face amount			$ 31,800																					$ 31,800
Debt instrument, covenant, maximum debt to EBITDA ratio			6.0
Debt instrument, covenant, minimum equity capital, amount			$ 750,000
Debt instrument, covenant, equity capital to total assets (in percentage)			25.00%
Debt instrument, number of quarterly installment			32
Debt instrument, periodic payment, principal			$ 1,000
Annual interest rate																								6.75%
Long-term debt, gross																								$ 29,800
Discount 2024 II Loan
Debt Instrument [Line Items]
Debt instrument, face amount	$ 50,000																							$ 50,000
Debt instrument, covenant, maximum debt to EBITDA ratio	6.0
Debt instrument, covenant, minimum equity capital, amount	$ 750,000
Debt instrument, covenant, equity capital to total assets (in percentage)	25.00%
Debt instrument, periodic payment, total	$ 1,560
Debt instrument, term	4 years
Debt instrument, basis spread on variable rate	2.35%
Debt instrument, number of quarterly installment | payment	15
Debt instrument, last payment	$ 26,600
Debt instrument, extension period	4 years
Annual interest rate																								2.35%
Long-term debt, gross																								$ 48,400
Discount 2024 II Loan | Minimum
Debt Instrument [Line Items]
Annual interest rate	2.50%
Mizrahi Loan 2023
Debt Instrument [Line Items]
Debt instrument, face amount							$ 50,000																	$ 50,000
Debt instrument, covenant, maximum debt to EBITDA ratio							6.0
Debt instrument, covenant, minimum equity capital, amount							$ 750,000
Debt instrument, covenant, equity capital to total assets (in percentage)							25.00%
Debt instrument, number of semi-annual payments							16
Debt instrument, periodic payment, total							$ 3,100
Debt instrument, term							8 years
Annual interest rate																								7.15%
Long-term debt, gross																								$ 43,800
Hapoalim Loan 2023
Debt Instrument [Line Items]
Debt instrument, face amount								$ 100,000							$ 100,000
Debt instrument, covenant, maximum debt to EBITDA ratio								6.0
Debt instrument, covenant, minimum equity capital, amount								$ 750,000
Debt instrument, covenant, equity capital to total assets (in percentage)								25.00%
Debt instrument, number of semi-annual payments								20
Debt instrument, periodic payment, total								$ 5,000
Debt instrument, term								10 years
Annual interest rate																								6.45%
Long-term debt, gross																								$ 85,000
Mizrahi Loan
Debt Instrument [Line Items]
Debt instrument, face amount												$ 75,000												$ 75,000
Debt instrument, covenant, maximum debt to EBITDA ratio												6.0
Debt instrument, covenant, minimum equity capital, amount												$ 750,000
Debt instrument, covenant, equity capital to total assets (in percentage)												25.00%
Debt instrument, number of semi-annual payments												16
Debt instrument, periodic payment, total												$ 4,700
Debt instrument, term												8 years
Annual interest rate																								4.10%
Long-term debt, gross																								$ 51,600
Hapoalim Loan
Debt Instrument [Line Items]
Debt instrument, face amount															$ 125,000									$ 125,000
Debt instrument, covenant, maximum debt to EBITDA ratio															6.0
Debt instrument, covenant, minimum equity capital, amount															$ 750,000
Debt instrument, covenant, equity capital to total assets (in percentage)															25.00%
Debt instrument, number of semi-annual payments															14
Debt instrument, periodic payment, total															$ 8,900
Debt instrument, term															7 years
Annual interest rate																								3.45%
Long-term debt, gross																								$ 62,500
HSBC Loan
Debt Instrument [Line Items]
Debt instrument, face amount														$ 50,000
Debt instrument, covenant, maximum debt to EBITDA ratio														6.0
Debt instrument, covenant, minimum equity capital, amount														$ 750,000
Debt instrument, covenant, equity capital to total assets (in percentage)														25.00%
Debt instrument, number of semi-annual payments														14
Debt instrument, periodic payment, total														$ 3,600
Debt instrument, term														7 years
Discount Loan
Debt Instrument [Line Items]
Debt instrument, face amount													$ 100,000											$ 100,000
Debt instrument, covenant, maximum debt to EBITDA ratio													6.0
Debt instrument, covenant, minimum equity capital, amount													$ 750,000
Debt instrument, covenant, equity capital to total assets (in percentage)													25.00%
Debt instrument, number of semi-annual payments													16
Debt instrument, periodic payment, total													$ 6,250
Debt instrument, term													8 years
Annual interest rate																								2.90%
Long-term debt, gross																								$ 62,500
Senior Unsecured Bonds - Series 4
Debt Instrument [Line Items]
Debt instrument, face amount																								$ 289,800									$ 289,800	₪ 1.0
Annual interest rate																								3.35%
Debt instrument, number of annual payments																																	10	10
Long-term debt, gross																								$ 192,200
Senior Unsecured Bonds - Series 4 | Cross currency swap derivative
Debt Instrument [Line Items]
Derivative, fixed interest rate																																	4.34%	4.34%
Senior Unsecured Loan (“Migdal”)
Debt Instrument [Line Items]
Debt instrument, face amount																			$ 100,000					$ 100,000
Debt instrument, periodic payment, total																			4,200
Annual interest rate																								4.80%
Debt instrument, periodic payment terms, balloon payment to be paid																			$ 37,000
Debt instrument increase in stated interest rate if rating is downgraded																			0.50%
Debt instrument increase in stated interest rate each additional downgrade																			0.25%
Debt instrument decrease in stated interest rate for each rating upgrade																			0.25%
Debt to EBITDA ratio threshold for rate increase																			4.5
Debt instrument increase in stated interest rate if debt to EBITDA ratio exceeds threshold																			0.50%
Debt to EBITDA ratio requirement																			6.0
Stockholders equity, debt covenant, minimum threshold																			$ 750,000
Stockholders equity to total assets, ratio																			25.00%
Long-term debt, gross																								$ 70,600
Senior Unsecured Loan (“Migdal”) | Minimum
Debt Instrument [Line Items]
Annual interest rate																			4.80%
Senior Unsecured Loan (“Migdal”) | Maximum
Debt Instrument [Line Items]
Debt instrument, increase in stated interest rate																			1.00%
Additional Migdal Loan
Debt Instrument [Line Items]
Debt instrument, face amount																		$ 50,000						$ 50,000
Debt instrument, number of semi-annual payments																		15
Debt instrument, periodic payment, total																		$ 2,100
Annual interest rate																								4.60%
Debt instrument, periodic payment terms, balloon payment to be paid																		$ 18,500
Long-term debt, gross																								$ 35,300
Second Addendum Migdal Loan
Debt Instrument [Line Items]
Debt instrument, face amount																								$ 50,000											$ 50,000
Debt instrument, number of semi-annual payments																																			15
Annual interest rate																								5.44%
Debt instrument, periodic payment terms, balloon payment to be paid																																			$ 18,500
Debt instrument, principal to be repaid in installments																																			$ 31,500
Long-term debt, gross																								$ 35,300
DEG 2 Facility Agreement
Debt Instrument [Line Items]
Debt instrument, face amount																																								$ 50,000
Debt instrument, number of semi-annual payments																																								20
Annual interest rate																				6.28%
Proceeds from revolving credit lines with banks																				$ 50,000
DEG 3 Loan Agreement
Debt Instrument [Line Items]
Annual interest rate																																					6.04%
DEG 3 Loan Agreement | OrPower 4, Inc
Debt Instrument [Line Items]
Debt instrument, face amount																																					$ 41,500
Debt instrument, number of semi-annual payments																																					19
DEG 4 Loan
Debt Instrument [Line Items]
Debt instrument, face amount				$ 30,000
Debt instrument, number of semi-annual payments				6
Proceeds from revolving credit lines with banks				$ 30,000
Bottleneck Loan
Debt Instrument [Line Items]
Annual interest rate																								6.31%
Bottleneck Loan | Senior notes
Debt Instrument [Line Items]
Debt instrument, face amount																								$ 72,600				$ 72,600
Debt instrument, number of semi-annual payments																											30
Annual interest rate																											6.31%
Long-term debt, gross																								72,600
Mammoth Senior Secured Notes | Senior notes
Debt Instrument [Line Items]
Debt instrument, face amount					$ 135,100																			$ 135,100
Debt instrument, basis spread on variable rate					1.25%
Annual interest rate					6.73%																			6.73%
Debt instrument number of semiannual installment					46
Long-term debt, gross																								$ 129,200
Floating Rate Notes | Senior notes
Debt Instrument [Line Items]
Debt instrument floating rate notes to be issued					$ 9,000
Debt instrument commitment fee (in percentage)					0.50%
Loan agreement with DFC (the Olkaria III power plant)
Debt Instrument [Line Items]
Debt instrument, face amount																								310,000																		$ 310,000
Long-term debt, gross																								102,600
Loan agreement with DFC (the Platanares power plant)
Debt Instrument [Line Items]
Debt instrument, face amount																								$ 114,700														$ 114,700
Annual interest rate																								7.02%
Current power generation (megawatt-hour) | MWh																						35
Long-term debt, gross																								$ 63,500
Don A. Cambell Senior Secured Notes
Debt Instrument [Line Items]
Debt instrument, face amount																																							$ 92,500
OFC 2 LLC Senior Secured Notes ("OFC 2")
Debt Instrument [Line Items]
Debt instrument, face amount																																											$ 151,700	$ 350,000
Government guarantee percent																																												80.00%
OFC 2 LLC Senior Secured Notes ("OFC 2") | Wholly owned subsidiaries with project debt
Debt Instrument [Line Items]
Debt instrument, face amount																																									$ 140,000
Idaho Refinancing Note
Debt Instrument [Line Items]
Debt instrument, face amount									$ 61,600
Debt instrument, number of semi-annual payments																															31
Annual interest rate									6.26%
Idaho Refinancing Note | Raft River Energy I LLC
Debt Instrument [Line Items]
Debt instrument, secured, percentage of ownership interests									100.00%
Idaho Refinancing Note | Oregon USG Holdings, LLC
Debt Instrument [Line Items]
Debt instrument, secured, percentage of ownership interests									60.00%
Idaho Refinancing Note | Revolving Note Tranche
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate									1.40%
Line of credit facility, maximum borrowing capacity									$ 4,300
Line of credit facility, unused capacity, commitment fee percentage									0.50%
USG Prudential - ID Refinancing
Debt Instrument [Line Items]
Long-term debt									$ 16,000
DOE loan guarantee
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity																																													$ 96,800
Loan Agreement with Bpifrance | Guadeloupe 1
Debt Instrument [Line Items]
Debt instrument, face amount																	$ 8,900
Annual interest rate																																				1.93%
Debt instrument number of quarterly payments																	20
Long-term debt, gross																								2,700
Loan Agreement with Société Général | Guadeloupe 1
Debt Instrument [Line Items]
Debt instrument, face amount																$ 8,900
Annual interest rate																1.52%
Debt instrument number of quarterly payments																28
Long-term debt, gross																								$ 2,300
Senior convertible notes due 2027 | Convertible debt
Debt Instrument [Line Items]
Debt instrument, face amount		$ 45,200
Annual interest rate		2.50%
Convertible debt, noncurrent		$ 431,300
Proceeds from convertible debt		44,000
Debt instrument, fee amount		$ 1,100
Senior unsecured bonds, Series 3
Debt Instrument [Line Items]
Repayments of long-term debt, total										221,900
Extinguishment of debt, amount										218,000
Interest paid, including capitalized interest, operating and investing activities, total										2,800
Debt instrument, unamortized premium, total										$ 1,100
Finance liability
Debt Instrument [Line Items]
Annual interest rate																								6.11%	6.12%				2.55%
Long-term debt, gross																								$ 220,600
Amount of restricted net assets for consolidated and unconsolidated subsidiaries																								1,400
Credit agreements with eight commercial banks
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity																								688,000
Credit agreements with eight commercial banks | Extensions of Credit in The Form of Loans and/or Letters of Credit
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity																								533,000
Credit agreements with eight commercial banks | Letter of Credit
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity																								155,000
Credit agreements with eight commercial banks | Union Bank, N.A.
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity																								100,000
Union Bank, N.A.
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity																								$ 100,000
Debt to earnings before interest tax depreciation and amortization ratio																								1.90
Debt services, coverage ratio																								5.32
Amount available for dividend distribution percent of cumulative net income																					2.0			0.4
Long-term line of credit, total																								$ 86,700
Union Bank, N.A. | Minimum
Debt Instrument [Line Items]
Debt services, coverage ratio																					1.35
Union Bank, N.A. | Maximum
Debt Instrument [Line Items]
Debt to earnings before interest tax depreciation and amortization ratio																					4.5
HSBC Bank USA, N.A.
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity																								$ 35,000
Debt to earnings before interest tax depreciation and amortization ratio																								1.90
Debt services, coverage ratio																								5.32
Amount available for dividend distribution percent of cumulative net income																								0.4
Long-term line of credit, total																								$ 34,800
Uncommitted line of credit facility, maximum borrowing capacity																								20,000
Uncommitted long-term line of credit																								36,900
HSBC Bank USA, N.A. | Letter of Credit
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity																								65,000
HSBC Bank USA, N.A. | Minimum
Debt Instrument [Line Items]
Debt to earnings before interest tax depreciation and amortization ratio																							1.35
HSBC Bank USA, N.A. | Maximum
Debt Instrument [Line Items]
Debt to earnings before interest tax depreciation and amortization ratio																							4.5
Amount available for dividend distribution percent of cumulative net income																							2.0
Surety agreement | Chubb
Debt Instrument [Line Items]
Surety bonds, maximum amount available																								960,000
Surety bonds, available																								750,000
Surety agreement, bonds | Chubb
Debt Instrument [Line Items]
Surety bonds, issued																								230,000
Surety agreement, surety-backed letters of credit | Chubb
Debt Instrument [Line Items]
Surety bonds, issued																								$ 62,600