REVENUE AND GRANT INCOME RECOGNITION - Additional Information (Details) - USD ($) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Disaggregation of Revenue [Line Items] | ||||
| Grant income | $ 4,482,000 | $ 4,585,000 | $ 7,999,000 | $ 8,298,000 |
| Direct costs | 86,658,000 | 36,129,000 | 152,017,000 | 64,853,000 |
| Advanced Reactor Demonstrator Program ("ARDP") | ||||
| Disaggregation of Revenue [Line Items] | ||||
| Grant income | 2,000,000 | 1,300,000 | 5,200,000 | 2,600,000 |
| Direct costs | $ 1,800,000 | $ 1,300,000 | $ 4,500,000 | $ 2,400,000 |
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- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of revenue that is not accounted for under Topic 606. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Details
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