Workforce Reductions and Advisory Costs	12 Months Ended
Workforce Reductions and Advisory Costs	Dec. 31, 2012
Restructuring and Related Activities [Abstract]
Workforce Reductions and Advisory Costs	9. WORKFORCE REDUCTIONS AND ADVISORY COSTS In early 2012, USEC initiated an internal review of its organizational structure and engaged a management consulting firm to support this review. Costs and related cash expenditures for the management consulting firm and other advisors totaled $8.4 million in 2012. Actions taken to-date related to USEC's organizational structure resulted in workforce reductions at the American Centrifuge design and engineering operations in Oak Ridge, Tennessee, at the headquarters operations located in Bethesda, Maryland and at the central services operations located in Piketon, Ohio. The reductions to-date involved approximately 50 employees including two senior corporate officers. Charges and related cash expenditures totaling $3.9 million were incurred in 2012 for one-time termination benefits consisting of severance payments, short-term health care coverage and immediate vesting of restricted stock and stock options for certain employees. Additional actions affecting employees to align the organization with USEC's evolving business environment are expected.

The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled.

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