Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2020	Nov. 01, 2020
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-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		11,320,689
Document Quarterly Report	true
Document Transition Report	false
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity File Number	1-14287
Entity Interactive Data Current	Yes
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