Basis of Presentation Basis of Presentation (Policies)	9 Months Ended
Sep. 30, 2014
Accounting Policies [Abstract]
New Accounting Pronouncements, Policy [Policy Text Block]	New Accounting Standards In July 2013, the Financial Accounting Standards Board ("FASB") issued guidance requiring an entity to present unrecognized tax benefits as a reduction to deferred tax assets when a net operating loss carryforward, similar tax loss or a tax credit carryforward exists, with limited exceptions. This pronouncement was effective beginning in the first quarter of 2014. The Company has historically presented uncertain tax positions in accordance with the new guidance and the implementation of the guidance did not have a material impact on its consolidated financial statements. In April 2014, the FASB issued amendments to guidance for reporting discontinued operations and disposals of components of an entity. The amended guidance changes the definition of a discontinued operation to include only those disposals of components of an entity that represent a strategic shift that has, or will have, a major effect on an entity’s operations and financial results. The amendments also expand the disclosure requirements for discontinued operations and add new disclosures for individually significant dispositions that do not qualify as discontinued operations. The amendments are effective prospectively beginning in the first quarter of 2015 (early adoption is permitted only for disposals that have not been previously reported). The implementation of the amended guidance is not expected to have a material impact on Centrus' results of operations, cash flows or financial position. In May 2014, the FASB issued comprehensive new guidance for revenue recognition. The core principle of the new standard is that revenue should be recognized when an entity transfers promised goods or services to customers in an amount that reflects the consideration the entity expects to receive in exchange for those goods or services. The new standard will supersede current guidance in effect and may require the use of more judgment and estimates, including estimating the amount of variable revenue to recognize over each identified performance obligation. The new standard requires additional disclosures to describe the nature, amount and timing of revenue and cash flows arising from contracts. The new standard will become effective for Centrus beginning with the first quarter of 2017 and can be adopted either retrospectively to each prior reporting period presented or as a cumulative effect adjustment as of the date of adoption. Centrus is evaluating the impact of adopting this new guidance on its consolidated financial statements. In August 2014, the FASB issued guidance which will require management to evaluate whether there is substantial doubt about the entity’s ability to continue as a going concern for 12 months following the issuance of the financial statements. In the event there is substantial doubt, the guidance requires disclosure of the relevant facts and circumstances. This standard is effective for annual reporting periods beginning after December 15, 2016, and interim periods thereafter. Early adoption is permitted. Centrus does not expect this standard will have a significant impact on its consolidated financial statements or disclosures.

New Accounting Standards

In July 2013, the Financial Accounting Standards Board ("FASB") issued guidance requiring an entity to present unrecognized tax benefits as a reduction to deferred tax assets when a net operating loss carryforward, similar tax loss or a tax credit carryforward exists, with limited exceptions. This pronouncement was effective beginning in the first quarter of 2014. The Company has historically presented uncertain tax positions in accordance with the new guidance and the implementation of the guidance did not have a material impact on its consolidated financial statements.

In April 2014, the FASB issued amendments to guidance for reporting discontinued operations and disposals of components of an entity. The amended guidance changes the definition of a discontinued operation to include only those disposals of components of an entity that represent a strategic shift that has, or will have, a major effect on an entity’s operations and financial results. The amendments also expand the disclosure requirements for discontinued operations and add new disclosures for individually significant dispositions that do not qualify as discontinued operations. The amendments are effective prospectively beginning in the first quarter of 2015 (early adoption is permitted only for disposals that have not been previously reported). The implementation of the amended guidance is not expected to have a material impact on Centrus' results of operations, cash flows or financial position.

In May 2014, the FASB issued comprehensive new guidance for revenue recognition. The core principle of the new standard is that revenue should be recognized when an entity transfers promised goods or services to customers in an amount that reflects the consideration the entity expects to receive in exchange for those goods or services. The new standard will supersede current guidance in effect and may require the use of more judgment and estimates, including estimating the amount of variable revenue to recognize over each identified performance obligation. The new standard requires additional disclosures to describe the nature, amount and timing of revenue and cash flows arising from contracts. The new standard will become effective for Centrus beginning with the first quarter of 2017 and can be adopted either retrospectively to each prior reporting period presented or as a cumulative effect adjustment as of the date of adoption. Centrus is evaluating the impact of adopting this new guidance on its consolidated financial statements.

In August 2014, the FASB issued guidance which will require management to evaluate whether there is substantial doubt about the entity’s ability to continue as a going concern for 12 months following the issuance of the financial statements. In the event there is substantial doubt, the guidance requires disclosure of the relevant facts and circumstances. This standard is effective for annual reporting periods beginning after December 15, 2016, and interim periods thereafter. Early adoption is permitted. Centrus does not expect this standard will have a significant impact on its consolidated financial statements or disclosures.