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v3.23.1

Inventories (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2023 | Dec. 31, 2022
Inventory [Line Items] |  |
UF6 units borrowed in period, value | $ 22.5 |
Inventory Loans, Current & Noncurrent | 83.2 | $ 58.6
Inventory Loans, Current | 9.9 | $ 9.9
Separative work units valuation change in period | $ 2.1 |

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- Definition Inventory Loans, Current + References No definition available. + Details
Name: | leu_InventoryLoansCurrent
Namespace Prefix: | leu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Inventory Loans, Current & Noncurrent + References No definition available. + Details
Name: | leu_InventoryLoansCurrentNoncurrent
Namespace Prefix: | leu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Separative work units valuation change in period + References No definition available. + Details
Name: | leu_SeparativeWorkUnitsValuationChangeInPeriod
Namespace Prefix: | leu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition UF6 units borrowed in period, value + References No definition available. + Details
Name: | leu_UF6UnitsBorrowedInPeriodValue
Namespace Prefix: | leu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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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. + References No definition available. + Details
Name: | us-gaap_InventoryLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration