XML 22 R1.htm IDEA: XBRL DOCUMENT v3.22.0.1
Cover Page - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Mar. 01, 2022
Jun. 30, 2021
Cover [Abstract]      
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2021    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Entity File Number 1-14287    
Entity Registrant Name Centrus Energy Corp.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 52-2107911    
Entity Address, Address Line One 6901 Rockledge Drive, Suite 800    
Entity Address, City or Town Bethesda    
Entity Address, State or Province MD    
Entity Address, Postal Zip Code 20817    
City Area Code (301)    
Local Phone Number 564-3200    
Title of 12(b) Security Class A Common Stock, par value $0.10 per share    
Trading Symbol LEU    
Security Exchange Name NYSEAMER    
Entity Interactive Data Current Yes    
Entity Filer Category Accelerated Filer    
Entity Central Index Key 0001065059    
Current Fiscal Year End Date --12-31    
Entity Common Stock, Shares Outstanding   13,673,933  
Amendment Flag false    
Entity Current Reporting Status Yes    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Public Float     $ 257.9
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Shell Company false    
Document Type 10-K    
ICFR Auditor Attestation Flag true