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Inventories (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Inventory, Net [Abstract]
Separative work units valuation change in period	$ 2.1	$ 0.3
Separative work units repaid in period, value		$ (26.5)

X

- Definition

Borrowed inventory valuation change in period

+ References

No definition available.

+ Details

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Namespace Prefix:	leu_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Separative work units repaid in period, value

+ References

No definition available.

+ Details

Name:	leu_SeparativeWorkUnitsRepaidInPeriodValue
Namespace Prefix:	leu_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_InventoryNetAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration