v3.26.1
Revenue and Contracts with Customers (Tables)
 3 Months Ended
Mar. 31, 2026
Revenue from Contract with Customer [Abstract]  
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue
The following table presents revenue from SWU and uranium sales disaggregated by geographical region based on the billing addresses of customers (in millions):

Three Months Ended March 31,
20262025
United States$17.3 $51.3 
Foreign 27.3 — 
Revenue - SWU and uranium$44.6 $51.3 
Contract with Customer, Asset and Liability
The following table presents changes in contract liability balances (in millions):
March 31, 
 2026		December 31, 
 2025		Year-To-Date Change
Deferred revenue - current$112.8 $131.1 $(18.3)
Accounts Receivable, Allowance for Credit Loss
The following table presents the components of accounts receivable (in millions):
March 31, 2026December 31, 2025
Accounts receivable:
Billed$22.7 $19.9 
Unbilled *19.1 10.8 
Accounts receivable$41.8 $30.7 
* Billings under certain contracts in the Technical Solutions segment are invoiced based on approved provisional billing rates. Unbilled revenue represents the difference between actual costs incurred and invoiced amounts. The Company expects to invoice and collect the unbilled amounts after actual rates are submitted to and approved by the customer. Unbilled revenue also includes unconditional rights to payment that are not yet billable under applicable contracts due to timing of invoice processing or pending the compilation of supporting documentation.