Subsequent Event	9 Months Ended
Sep. 30, 2026
Subsequent Events [Abstract]
Subsequent Event	SUBSEQUENT EVENT On October 16, 2026, Centrus entered into a Membership Interest Purchase Agreement with Ventura Trust, not in its individual capacity but solely as trustee of the Westerman Employee Stock Ownership Trust (“Seller”), and Westerman Holdings, LLC, a Delaware limited liability company (“Westerman”), pursuant to which on the same date the Company purchased 100% of the issued and outstanding limited liability company membership interests of Westerman (the “LLC Interests”) from the Seller (the “Acquisition”). Westerman is a U.S. equipment manufacturing and engineering firm focused primarily on the energy sector. As a result of the Acquisition, Westerman is a wholly owned subsidiary of the Company. The aggregate purchase price for the LLC Interests was approximately $116.0 million (“Purchase Price”), which was paid by the Company $95.0 million in cash, and $21.0 million in shares of Class A Common Stock. In connection with the Acquisition, the Company paid, out of the Purchase Price and on behalf of Westerman, an aggregate amount of (a) approximately $31.5 million to the holders of subordinated notes previously issued by Westerman in full satisfaction of the notes and (b) $12.7 million to the lender under a term loan facility of Westerman in full repayment of the loan. The Company also paid, out of the Purchase Price, approximately $10.5 million of the Seller’s and Westerman’s transaction expenses. The number of shares of Class A Common Stock issued was determined based on the closing price of the Class A Common Stock as of October 15, 2026, and were issued pursuant to Section 4(a)(2) of the Securities Act of 1933, as amended.

On October 16, 2026, Centrus entered into a Membership Interest Purchase Agreement with Ventura Trust, not in its individual capacity but solely as trustee of the Westerman Employee Stock Ownership Trust (“Seller”), and Westerman Holdings, LLC, a Delaware limited liability company (“Westerman”), pursuant to which on the same date the Company purchased 100% of the issued and outstanding limited liability company membership interests of Westerman (the “LLC Interests”) from the Seller (the “Acquisition”). Westerman is a U.S. equipment manufacturing and engineering firm focused primarily on the energy sector. As a result of the Acquisition, Westerman is a wholly owned subsidiary of the Company.

The aggregate purchase price for the LLC Interests was approximately $116.0 million (“Purchase Price”), which was paid by the Company $95.0 million in cash, and $21.0 million in shares of Class A Common Stock. In connection with the Acquisition, the Company paid, out of the Purchase Price and on behalf of Westerman, an aggregate amount of (a) approximately $31.5 million to the holders of subordinated notes previously issued by Westerman in full satisfaction of the notes and (b) $12.7 million to the lender under a term loan facility of Westerman in full repayment of the loan. The Company also paid, out of the Purchase Price, approximately $10.5 million of the Seller’s and Westerman’s transaction expenses. The number of shares of Class A Common Stock issued was determined based on the closing price of the Class A Common Stock as of October 15, 2026, and were issued pursuant to Section 4(a)(2) of the Securities Act of 1933, as amended.