GOVERNMENT GRANTS - Narrative (Details) - USD ($) $ in Thousands |
6 Months Ended | |||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
Feb. 28, 2022 |
|
| Government Assistance [Line Items] | ||||
| Reimbursements received from the government | $ 0 | $ 12,200 | ||
| HREE Production Project Agreement | ||||
| Government Assistance [Line Items] | ||||
| HREE Production Project Agreement, stage II optimization contribution | $ 35,000 | |||
| Receivable From Government Reimbursements For Property, Plant And Equipment | 5,000 | |||
| Reimbursements received from the government | $ 12,200 | |||
| 45 X Credit Government Grant | ||||
| Government Assistance [Line Items] | ||||
| Grants Receivable, Noncurrent | 23,400 | $ 0 | ||
| 45 X Credit Government Grant | UNITED STATES | ||||
| Government Assistance [Line Items] | ||||
| Proceeds from Income Tax Refunds | $ 19,000 | |||