XML 69 R43.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Environmental Compliance (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2012
Environmental Compliance |
Schedule of Change in Asset Retirement Obligation [Table Text Block] |
|  | ARO Liability |  |  | ARO Asset |
Balance at December 31, 2009 |  | $ | 21.3 |  |  | $ | 19.3 |
Additional retirement obligation |  |  | - |  |  |  | - |
Accretion |  |  | 1.3 |  |  |  | - |
Balance at December 31, 2010 |  | $ | 22.6 |  |  | $ | 19.3 |
Additional retirement obligation |  |  | - |  |  |  | - |
Accretion |  |  | - |  |  |  | - |
Balance at December 31, 2011 |  | $ | 22.6 |  |  | $ | 19.3 |
Additional retirement obligation |  |  | - |  |  |  | - |
Accretion |  |  | - |  |  |  | - |
Expense of American Centrifuge capital assets |  |  | - |  |  |  | (19.3 | )
Balance at December 31, 2012 |  | $ | 22.6 |  |  | $ | - |

X
- Details
Name: | us-gaap_AssetRetirementObligationDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13201-110859 + Details
Name: | us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration