Financial Instruments - Restricted Cash (Details) - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022	Dec. 31, 2019
Variable Interest Entity [Line Items]
Restricted cash, short-term	[1]	$ 42,614	$ 51,515
Restricted cash, long-term	[1]	37,698	118,353
Restricted cash		80,312	169,868
Consolidated Entity, Excluding Consolidated VIE
Variable Interest Entity [Line Items]
Restricted cash, short-term		42,614	50,965
Restricted cash, long-term		37,698	110,353
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Restricted cash, short-term			550
Restricted cash, long-term			8,000
Variable Interest Entity, Primary Beneficiary | Power Purchase Agreements Entities
Variable Interest Entity [Line Items]
Restricted cash, short-term		0	550
Restricted cash, long-term		0	8,000
Variable Interest Entity, Primary Beneficiary | PPA II
Variable Interest Entity [Line Items]
Restricted cash, short-term		28,100	40,600
Restricted cash, long-term		12,300	28,500
Restricted cash		40,400	69,100
Variable Interest Entity, Primary Beneficiary | PPA IIIB
Variable Interest Entity [Line Items]
Restricted cash, short-term		900	1,200
Restricted cash, long-term		$ 6,700	$ 6,700
Restricted cash				$ 20,000

[1] We have a variable interest entity related to PPA V (see Note 10 - Portfolio Financings) and a joint venture in the Republic of Korea (see Note 16 - SK ecoplant Strategic Investment), which represent a portion of the consolidated balances recorded within these financial statement line items.In August 2023, we sold the PPA V entity as a result of the PPA V Repowering of Energy Servers (see Note 10 - Portfolio Financings), as such the consolidated balances recorded within these financial statement line items as of September 30, 2023 exclude PPA V balances.