XML 53 R33.htm IDEA: XBRL DOCUMENT
v3.24.2.u1

Revenue and Contracts with Customers - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 19 Months Ended | 66 Months Ended |
--- | --- | --- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2022 | Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Provision for Loss on Contracts Utilized |  |  |  | $ 0.0 | $ (11.3) |  |  |
Deferred revenue, revenue recognized |  |  |  | 64.7 | 14.8 |  |  |
Revenue, remaining performance obligation, amount | $ 900.0 |  |  | 900.0 |  | $ 900.0 | $ 900.0 | $ 1,000.0
Unrealized Gain (Loss), Foreign Currency Transaction, before Tax | 0.0 | $ 0.0 |  | (0.1) | 0.0 |  |  |
Accrued loss |  |  | $ 21.3 |  |  |  |  |
LEU Segment |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Revenue, remaining performance obligation, amount | 800.0 |  |  | 800.0 |  | 800.0 | 800.0 | 1,000.0
Deferred Revenue and Advances from Customers - Current and Noncurrent | 257.0 |  |  | 257.0 |  | 257.0 | 257.0 | 315.0
Technical Solutions Segment |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Revenue, remaining performance obligation, amount | $ 38.9 |  |  | $ 38.9 |  | $ 38.9 | $ 38.9 | $ 77.0
HALEU Demo Contract |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Government cost share, percentage | 80.00% |  |  | 80.00% |  | 80.00% | 80.00% |
HALEU Ops Contract |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Cost obligated to DOE |  |  |  |  |  | $ 89.1 |  |
Total Amount Program Cost |  |  |  |  |  | 125.9 |  |
Contract Value | $ 150.0 |  |  | $ 150.0 |  | 150.0 | $ 150.0 |
New Amount Program Cost |  |  |  |  |  | 5.8 |  |
HALEU Ops Contract | Phase 2 |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Contract Value | 90.0 |  |  | 90.0 |  | 90.0 | 90.0 |
Government [Member] |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Proceeds from Customers |  |  |  |  |  | 76.4 | 173.0 |
Government [Member] | HALEU Demo Contract |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Proceeds from Customers |  |  |  |  |  |  | 171.2 |
Government [Member] | HALEU Ops Contract |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Provision for Loss on Contracts Utilized |  | $ 5.8 |  |  | $ 11.3 |  |  |
Maximum [Member] | HALEU Ops Contract | Phase 1 |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Government cost share portion | 30.0 |  |  | 30.0 |  | 30.0 | 30.0 |
Company cost share portion | $ 30.0 |  |  | $ 30.0 |  | $ 30.0 | $ 30.0 |

X
- Definition Accrued Loss + References No definition available. + Details
Name: | leu_AccruedLoss
Namespace Prefix: | leu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Company cost share portion + References No definition available. + Details
Name: | leu_CompanyCostSharePortion
Namespace Prefix: | leu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Contract Value + References No definition available. + Details
Name: | leu_ContractValue
Namespace Prefix: | leu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Cost obligated to DOE + References No definition available. + Details
Name: | leu_CostObligatedToDOE
Namespace Prefix: | leu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Deferred Revenue and Advances from Customers - Current and Noncurrent + References No definition available. + Details
Name: | leu_DeferredRevenueAndAdvancesFromCustomersCurrentAndNoncurrent
Namespace Prefix: | leu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Government cost share, percentage + References No definition available. + Details
Name: | leu_GovernmentCostSharePercentage
Namespace Prefix: | leu_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Anticipated government cost share portion of new contract + References No definition available. + Details
Name: | leu_Governmentcostshareportion
Namespace Prefix: | leu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition New Amount Program Cost + References No definition available. + Details
Name: | leu_NewAmountProgramCost
Namespace Prefix: | leu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Provision for Loss on Contracts Utilized + References No definition available. + Details
Name: | leu_ProvisionForLossOnContractsUtilized
Namespace Prefix: | leu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Total Amount Program Cost + References No definition available. + Details
Name: | leu_TotalAmountProgramCost
Namespace Prefix: | leu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- 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 Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 20 -Name Accounting Standards Codification -Section 40 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481628/310-20-40-7 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481990/310-10-45-2 + Details
Name: | us-gaap_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of revenue recognized that was previously reported as deferred or unearned revenue. + References No definition available. + Details
Name: | us-gaap_DeferredRevenueRevenueRecognized1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, before tax, of unrealized gain (loss) from foreign currency transaction. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 946 -SubTopic 830 -Name Accounting Standards Codification -Section 55 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479168/946-830-55-10 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section 45 -Paragraph 6 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479105/946-220-45-6 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(7)(c)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 830 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481956/830-20-45-1 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 830 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481926/830-20-50-1 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 + Details
Name: | us-gaap_ForeignCurrencyTransactionGainLossUnrealized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Cash receipts from customers during the current period which are usually for sales of goods and services. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 25 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-25 + Details
Name: | us-gaap_ProceedsFromCustomers
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of transaction price allocated to performance obligation that has not been recognized as revenue. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (a) -SubTopic 10 -Topic 606 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-13 + Details
Name: | us-gaap_RevenueRemainingPerformanceObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=leu_LEUSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=leu_TechnicalSolutionsSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ContractWithCustomerDurationAxis=leu_HALEUDemoContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ContractWithCustomerDurationAxis=leu_HALEUOpsContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | leu_ContractPhaseAxis=leu_Phase2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis=us-gaap_GovernmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | leu_ContractPhaseAxis=leu_Phase1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |