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Quarterly Financial Data (Unaudited) | 12 Months Ended
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Dec. 31, 2011
Quarterly Financial Information Disclosure [Abstract] |
Quarterly Financial Data (Unaudited) | 19. QUARTERLY FINANCIAL DATA (Unaudited) The following table summarizes quarterly and annual results of operations (in millions, except per share data):
|  | March 31, 2011 |  |  | June 30, 2011 |  |  | Sept. 30, 2011 |  |  | Dec. 31, 2011 |  |  | Year 2011 |  |  | March 31, 2010 |  |  | June 30, 2010 |  |  | Sept. 30, 2010 |  |  | Dec. 31, 2010 |  |  | Year 2010 |
Revenue |  | $ | 380.5 |  |  | $ | 454.4 |  |  | $ | 374.5 |  |  | $ | 462.4 |  |  | $ | 1,671.8 |  |  | $ | 344.7 |  |  | $ | 459.7 |  |  | $ | 564.6 |  |  | $ | 666.4 |  |  | $ | 2,035.4 |
Cost of sales |  |  | 366.6 |  |  |  | 421.2 |  |  |  | 347.6 |  |  |  | 452.2 |  |  |  | 1,587.6 |  |  |  | 318.0 |  |  |  | 415.6 |  |  |  | 526.6 |  |  |  | 616.8 |  |  |  | 1,877.0 |
Gross profit |  |  | 13.9 |  |  |  | 33.2 |  |  |  | 26.9 |  |  |  | 10.2 |  |  |  | 84.2 |  |  |  | 26.7 |  |  |  | 44.1 |  |  |  | 38.0 |  |  |  | 49.6 |  |  |  | 158.4 |
Advanced technology costs |  |  | 26.7 |  |  |  | 33.5 | (a) |  |  | 26.0 |  |  |  | 187.0 | (b) |  |  | 273.2 |  |  |  | 25.7 |  |  |  | 26.0 |  |  |  | 28.6 |  |  |  | 29.9 |  |  |  | 110.2 |
Selling, general and administrative |  |  | 15.5 |  |  |  | 16.7 |  |  |  | 15.6 |  |  |  | 14.3 |  |  |  | 62.1 |  |  |  | 15.1 |  |  |  | 14.3 |  |  |  | 14.0 |  |  |  | 15.5 |  |  |  | 58.9 |
Other (income) |  |  | (3.7 | ) |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (3.7 | ) |  |  | (9.7 | ) |  |  | (10.3 | ) |  |  | (12.4 | ) |  |  | (12.0 | ) |  |  | (44.4 | )
Operating income (loss) |  |  | (24.6 | ) |  |  | (17.0 | ) |  |  | (14.7 | ) |  |  | (191.1 | ) |  |  | (247.4 | ) |  |  | (4.4 | ) |  |  | 14.1 |  |  |  | 7.8 |  |  |  | 16.2 |  |  |  | 33.7 |
Preferred stock issuance costs |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 4.8 |  |  |  | 1.8 |  |  |  | 6.6 |
Interest expense |  |  | - |  |  |  | 0.1 |  |  |  | 0.2 |  |  |  | 11.3 |  |  |  | 11.6 |  |  |  | - |  |  |  | 0.1 |  |  |  | 0.3 |  |  |  | 0.2 |  |  |  | 0.6 |
Interest (income) |  |  | (0.2 | ) |  |  | (0.1 | ) |  |  | (0.1 | ) |  |  | (0.1 | ) |  |  | (0.5 | ) |  |  | (0.1 | ) |  |  | (0.1 | ) |  |  | (0.2 | ) |  |  | - |  |  |  | (0.4 | )
Income (loss) before income taxes |  |  | (24.4 | ) |  |  | (17.0 | ) |  |  | (14.8 | ) |  |  | (202.3 | ) |  |  | (258.5 | ) |  |  | (4.3 | ) |  |  | 14.1 |  |  |  | 2.9 |  |  |  | 14.2 |  |  |  | 26.9 |
Provision (benefit) for income taxes |  |  | (7.8 | ) |  |  | 4.2 |  |  |  | (7.9 | ) |  |  | 293.7 | (c) |  |  | 282.2 |  |  |  | 5.4 |  |  |  | 6.9 |  |  |  | 1.9 |  |  |  | 5.2 |  |  |  | 19.4 |
Net income (loss) |  | $ | (16.6 | ) |  | $ | (21.2 | ) |  | $ | (6.9 | ) |  | $ | (496.0 | ) |  | $ | (540.7 | ) |  | $ | (9.7 | ) |  | $ | 7.2 |  |  | $ | 1.0 |  |  | $ | 9.0 |  |  | $ | 7.5 |
Net income (loss) per share – basic |  | $ | (.14 | ) |  | $ | (.18 | ) |  | $ | (.06 | ) |  | $ | (4.09 | ) |  | $ | (4.48 | ) |  | $ | (.09 | ) |  | $ | .06 |  |  | $ | .01 |  |  | $ | .08 |  |  | $ | .07 |
Net income (loss) per share – diluted |  | $ | (.14 | ) |  | $ | (.18 | ) |  | $ | (.06 | ) |  | $ | (4.09 | ) |  | $ | (4.48 | ) |  | $ | (.09 | ) |  | $ | .04 |  |  | $ | .01 |  |  | $ | .05 |  |  | $ | .05 |
Weighted average number of shares outstanding: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  |  | 119.6 |  |  |  | 121.1 |  |  |  | 121.3 |  |  |  | 121.3 |  |  |  | 120.8 |  |  |  | 111.7 |  |  |  | 112.9 |  |  |  | 113.2 |  |  |  | 113.2 |  |  |  | 112.8 |
Diluted |  |  | 119.6 |  |  |  | 121.1 |  |  |  | 121.3 |  |  |  | 121.3 |  |  |  | 120.8 |  |  |  | 111.7 |  |  |  | 161.4 |  |  |  | 166.4 |  |  |  | 177.6 |  |  |  | 166.6 |
(a) | Includes expense of $9.6 million of previously capitalized construction work in progress expensed due to irreparable damage during lead cascade operations.
(b) | Includes expense of $127.1 million of previously capitalized construction work in progress consisting of centrifuge machines determined to no longer be compatible with the commercial plant design for the American Centrifuge Plant ("ACP"). In addition, USEC expensed $9.9 million of previously capitalized prepayments made to an ACP supplier for materials that will not be purchased prior to expiration of the contract. See Notes 4 and 16 for further details related to the American Centrifuge program.
(c) | Includes an increase to the valuation allowance against net deferred taxes of $369.1 million. See Note 12.
The calculation of net income per share and average number of shares outstanding on a dilutive basis for the years ended December 31, 2011, 2010 and 2009 is provided in Note 14. No dilutive effect is recognized in periods in which a net loss has occurred.

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- Definition The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section G -Subsection 1 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e725-108305 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 28 -Paragraph 23, 24 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e765-108305 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 28 -Paragraph 30 -Subparagraph a-j -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 302 -Paragraph a Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=6952194&loc=d3e1280-108306 + Details
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