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Stock-Based Compensation - Amazon Warrant Activities (Details) - USD ($) | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2026 | Mar. 31, 2025 | Jun. 14, 2021 | Apr. 16, 2021
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Contra revenue charge | $ 10,107,000 | $ 17,338,000 |  |
Fuel Sales |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Contra revenue charge | 7,500,000 |  |  |
Volume-related, O&M services |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Contra revenue charge | 2,600,000 |  |  |
Amazon Warrant |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Aggregate number of warrant shares (in shares) |  |  | 5,625,959 | 53,141,755
Purchase obligation for fuel |  |  |  | $ 500,000,000
Exercise price of the warrant (in dollars per share) |  |  | $ 13.49 | $ 13.49
Outstanding and unvested Beginning Balance | $ 21,157,323 |  |  |
Granted | 0 |  |  |
Vested | (1,175,408) |  |  |
Outstanding and unvested as of Ending Balance | $ 19,981,915 |  |  |
Number of warrants vested | 1,175,408 |  |  |
Contra revenue charge | $ 10,100,000 | 17,300,000 |  |
Amazon Warrant | Fuel Sales |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Contra revenue charge | 7,500,000 | 7,500,000 |  |
Amazon Warrant | Volume-related, O&M services |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Contra revenue charge | $ 2,600,000 | $ 2,600,000 |  |

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