Financial Instruments - Restricted Cash (Details) - USD ($) $ in Thousands		Mar. 31, 2024	Dec. 31, 2023
Cash and Cash Equivalents [Abstract]
Restricted cash, current	[1]	$ 51,387	$ 46,821
Restricted cash, non-current	[1]	15,378	33,764
Restricted cash		$ 66,765	$ 80,585

[1] We have a variable interest entity related to a joint venture in the Republic of Korea (see Note 15 — SK ecoplant Strategic Investment), which represents a portion of the consolidated balances recorded within these financial statement line items.