SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND RECENT ACCOUNTING PRONOUNCEMENTS - Schedule of Balance Receivable Related to Services Revenue and Government Grants (Details) - USD ($) $ in Thousands |
3 Months Ended | ||
|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Dec. 31, 2025 |
|
| Summary Of Significant Accounting Policy [Line Items] | |||
| Unbilled Receivables and Contract Assets | $ 51,159 | $ 41,529 | |
| DOE | |||
| Summary Of Significant Accounting Policy [Line Items] | |||
| Accounts Receivable | 20,010 | 23,628 | |
| Unbilled Receivables and Contract Assets | 51,129 | 39,644 | |
| Department of War | |||
| Summary Of Significant Accounting Policy [Line Items] | |||
| Unbilled Receivables and Contract Assets | $ 1,442 | $ 1,091 | |
| United States Government | |||
| Summary Of Significant Accounting Policy [Line Items] | |||
| Percentage of total revenue and grant income | 92.00% | 82.00% | |
| DOW Chemical Company | |||
| Summary Of Significant Accounting Policy [Line Items] | |||
| Percentage of total revenue and grant income | 4.00% | 10.00% | |