Inventories (Narrative) (Details) - USD ($) $ in Millions |
1 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|
Mar. 31, 2023 |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Inventory, Net [Abstract] | |||||
| Separative work units borrowed in period, value | $ 28.3 | ||||
| Separative work units repaid in period, value | $ (39.7) | $ (13.6) | $ (11.1) | ||
| Separative work units valuation change in period | 3.6 | $ 2.1 | $ 7.4 | ||
| UF6 units borrowed in period | $ 22.5 | ||||
| UF6 repaid in period, value | $ (29.8) | ||||