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Accounts Payable and Accrued Liabilities | 12 Months Ended
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Dec. 31, 2011
Accounts Payable and Accrued Liabilities, Current [Abstract] |
Accounts Payable and Accrued Liabilities | 5. ACCOUNTS PAYABLE AND ACCRUED LIABILITES
|  | December 31, |
|  | 2011 |  |  | 2010 |
|  | (millions) |
Trade payables |  | $ | 20.2 |  |  | $ | 36.3 |
Compensation and benefits |  |  | 45.2 |  |  |  | 61.3 |
American Centrifuge accrued liabilities |  |  | 11.0 |  |  |  | 14.5 |
Accrued property and other taxes payable |  |  | 10.9 |  |  |  | 9.8 |
Accrued lease turnover – current |  |  | - |  |  |  | 10.5 |
Accrued interest payable on debt |  |  | 4.7 |  |  |  | 5.3 |
Other accrued liabilities |  |  | 28.1 |  |  |  | 34.7 |
|  | $ | 120.1 |  |  | $ | 172.4 |
The decline in accounts payable and accrued liabilities is primarily due to the Portsmouth site transition to the D&D contractor in 2011, reduced ACP related activities, and reduced compensation related accruals.

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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 SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 24 -Article 5 Reference 3: 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 + Details
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