Related Party Transactions - Results of Operations (Details) $ in Thousands		12 Months Ended
		Dec. 31, 2023 USD ($) Loan	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Related Party Transaction [Line Items]
Total revenue from related parties	[1]	$ 1,333,470	$ 1,199,125	$ 972,176
Total cost of revenue	[2]	1,135,676	1,050,837	774,595
General and administrative expenses	[3]	160,875	167,740	122,188
Interest expense		108,300	53,500	69,000
SK Ecoplant
Related Party Transaction [Line Items]
Interest expense		$ 52,800
SK Ecoplant | Korean Joint Venture
Related Party Transaction [Line Items]
Number of term loans | Loan		2
Rent Expenses
Related Party Transaction [Line Items]
General and administrative expenses		$ 600
Miscellaneous Expense
Related Party Transaction [Line Items]
General and administrative expenses		200
Related Party
Related Party Transaction [Line Items]
Total revenue from related parties		487,240	36,281	16,038
Total cost of revenue		133	0	0
General and administrative expenses		812	0	0
Interest expense		84	0	0
Related Party | SK Ecoplant
Related Party Transaction [Line Items]
Total revenue from related parties		$ 37,300	$ 36,300	$ 14,500

[1] Including related party revenue of $487.2 million, $36.3 million and $16.0 million for the years ended December 31, 2023, 2022 and 2021, respectively.

[2] Including related party cost of revenue of $0.1 million for the year ended December 31, 2023. There was no related party cost of revenue for the years ended December 31, 2022 and 2021.

[3] Including related party general and administrative expenses of $0.8 million for the year ended December 31, 2023. There were no related party general and administrative expenses for the years ended December 31, 2022 and 2021.