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Net Income Per Share (Schedule of Income Per Share) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012 | Dec. 31, 2012 | Dec. 31, 2011
Earnings Per Share [Abstract] |  |  |  |  |  |
Net (loss) from continuing operations | $ (40.9) | $ (92.1) | $ (64.6) | $ (121.4) |  |
Net income from discontinued operations | 0 | 0.1 | 21.7 | 0.6 |  |
Net (loss) | (40.9) | (92.0) | (42.9) | (120.8) | 1,200.0 | 491.1
Net (loss) from continuing operations - if converted | (40.9) | (92.1) | (64.6) | (121.4) |  |
Net income from discontinued operations - if converted | 0 | 0.1 | 21.7 | 0.6 |  |
Net (loss) - if converted | $ (40.9) | $ (92.0) | $ (42.9) | $ (120.8) |  |
Weighted average common shares | 5.0 | 5.0 | 5.0 | 5.0 |  |
Less: Weighted average unvested restricted stock | 0.1 | 0.1 | 0.1 | 0.1 |  |
Denominator for basic calculation | 4.9 | 4.9 | 4.9 | 4.9 |  |
Convertible notes | 1.8 | 1.8 | 1.8 | 1.8 |  |
Convertible preferred stock - equivalent common shares | 10.0 | 3.1 | 8.9 | 3.0 |  |
Convertible preferred stock - less: share issuance limitation | 9.1 | 2.2 | 8.0 | 2.1 |  |
Convertible preferred stock - net allowable shares | 0.9 | 0.9 | 0.9 | 0.9 |  |
Subtotal | 2.7 | 2.7 | 2.7 | 2.7 |  |
Less: shares excluded in a period of net loss or antidilution | 2.7 | 2.7 | 2.7 | 2.7 |  |
Denominator for diluted calculation | 4.9 | 4.9 | 4.9 | 4.9 |  |
Net (loss) from continuing operations per share – basic and diluted | $ (8.35) | $ (18.80) | $ (13.18) | $ (24.78) |  |
Net income per share from discontinued operations - basic and diluted | $ 0.00 | $ 0.02 | $ 4.43 | $ 0.12 |  |
Net (loss) per share – basic and diluted | $ (8.35) | $ (18.78) | $ (8.76) | $ (24.65) |  |

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