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Document and Entity Information (USD $)
 12 Months Ended
Dec. 31, 2014
Mar. 15, 2015
Jun. 30, 2014
Document and Entity Information      
Entity Registrant Name CENTRUS ENERGY CORP    
Entity Central Index Key 0001065059    
Current Fiscal Year End Date --12-31    
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2014    
Entity Filer Category Smaller Reporting Company    
Entity Common Stock, Shares Outstanding   9,000,000dei_EntityCommonStockSharesOutstanding  
Document Fiscal Year Focus 2014    
Document Fiscal Period Focus FY    
Entity Well-known Seasoned Issuer No    
Entity Public Float     $ 14,400,000dei_EntityPublicFloat
Entity Current Reporting Status Yes    
Entity Voluntary Filers No