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Accounts Payable and Accrued Liabilities (Notes) | 12 Months Ended
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Dec. 31, 2013
Accounts Payable and Accrued Liabilities [Abstract] |
Accounts Payable and Accrued Liabilities [Text Block] | ACCOUNTS PAYABLE AND ACCRUED LIABILITES
| December 31,
| 2013 |  | 2012
| (millions)
Trade payables | $ | 8.7 |  |  | $ | 21.1 |
Compensation and benefits | 27.3 |  |  | 41.0 |
American Centrifuge accrued liabilities | 4.6 |  |  | 13.3 |
Accrued property and other taxes payable | 3.2 |  |  | 4.7 |
Accrued lease turnover - current | 30.4 |  |  | 32.2 |
Accrued interest payable on debt | 4.0 |  |  | 5.3 |
Accrued severance payments | 21.2 |  |  | — |
Other accrued liabilities | 15.1 |  |  | 28.2 |
| $ | 114.5 |  |  | $ | 145.8 |

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- Definition The entire disclosure for accounts payable and accrued liabilities at the end of the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Subparagraph a -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(a),20,24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 24 -Article 5 + Details
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