Department of Energy Loan Facility and Warrant Obligations - Summary of Fair Value of the Warrant Obligations (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|
Jan. 30, 2026 |
Jun. 30, 2026 |
Dec. 31, 2025 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Class of Warrant or Right [Line Items] | ||||||
| Initial recognition on October 7, 2025 | $ 394,116 | $ 234,091 | ||||
| Loss/(gain) on change in fair value | $ (4,469) | (160,025) | $ 0 | (4,886) | $ 0 | |
| LAC Warrant issued | (88,786) | |||||
| Ending Balance | 140,419 | 234,091 | 140,419 | |||
| LAC Warrants [Member] | ||||||
| Class of Warrant or Right [Line Items] | ||||||
| Initial recognition on October 7, 2025 | 143,391 | 83,796 | ||||
| Loss/(gain) on change in fair value | (59,595) | 4,990 | ||||
| LAC Warrant issued | $ 88,800 | (88,786) | ||||
| Ending Balance | 0 | 83,796 | 0 | |||
| JV Warrants [Member] | ||||||
| Class of Warrant or Right [Line Items] | ||||||
| Initial recognition on October 7, 2025 | 250,725 | 150,295 | ||||
| Loss/(gain) on change in fair value | (100,430) | (9,876) | ||||
| Ending Balance | $ 140,419 | $ 150,295 | $ 140,419 | |||