Contract Estimated Fee

No definition available.

Name:	leu_ContractEstimatedFee
Namespace Prefix:	leu_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Contract Minimum Fee

+ References

No definition available.

+ Details

Name:	leu_ContractMinimumFee
Namespace Prefix:	leu_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Contract Value

+ References

No definition available.

+ Details

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

- Definition

Cost obligated to DOE

+ References

No definition available.

+ Details

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

- Definition

Deferred Revenue and Advances from Customers - Current and Noncurrent

+ References

No definition available.

+ Details

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Namespace Prefix:	leu_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-3

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3)(c)(3))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 3: 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 4: 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

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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

- 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

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Revenue and Contracts with Customers - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		40 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Dec. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]
Deferred revenue, revenue recognized	$ 18.5	$ 0.0
Revenue, remaining performance obligation, amount	800.0		$ 800.0	$ 600.0
LEU Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenue, remaining performance obligation, amount	700.0		700.0	600.0
Deferred Revenue and Advances from Customers - Current and Noncurrent	112.8		112.8	131.1
Technical Solutions Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenue, remaining performance obligation, amount	48.1		48.1	$ 79.1
Option 1a
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contract Value	108.2		108.2
Contract Minimum Fee	99.3		99.3
Contract Estimated Fee	8.7		8.7
Option 1b
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contract Minimum Fee	163.5		163.5
Contract Estimated Fee	15.2		15.2
HALEU Ops Contract
Accounts, Notes, Loans and Financing Receivable [Line Items]
Cost obligated to DOE			317.0
Contract Value	$ 150.0		150.0
Government [Member] \| HALEU Ops Contract
Accounts, Notes, Loans and Financing Receivable [Line Items]
Proceeds from Customers			$ 247.8