Commitments and Contingencies (Details) - USD ($) $ in Millions |
3 Months Ended | 12 Months Ended |
|---|---|---|
Mar. 31, 2024 |
Dec. 31, 2023 |
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| Total contractual commitments | $ 3.5 | $ 3.6 |
| INL Project [Member] | ||
| Total contractual commitments | 3.1 | 2.9 |
| Romania Feasibility Study [Member] | ||
| Total contractual commitments | 0.1 | 0.2 |
| Centrus Energy FEED Study [Member] | ||
| Total contractual commitments | $ 0.3 | $ 0.5 |
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