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Net Loss Per Share Attributable to Common Stockholders (Details) (USD $)
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3 Months Ended | 9 Months Ended | ||
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Sep. 30, 2013
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Sep. 30, 2012
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Sep. 30, 2013
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Sep. 30, 2012
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| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||
| Weighted average number of common shares outstanding - basic and diluted | 220,734,000 | 208,712,000 | 217,940,000 | 170,414,000 |
| Weighted average common shares outstanding - Basic | 208,712,000 | 170,414,000 | ||
| Weighted average common shares outstanding - Common stock options | 0 | 0 | 0 | 0 |
| Weighted average common shares outstanding - Diluted | $ 220,734,000 | $ 208,712,000 | $ 217,940,000 | $ 170,414,000 |
| basic and diluted net loss per share attributable to common stockholders (US$ per share) | $ (0.46) | $ (0.52) | $ (1.71) | $ (1.40) |
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Stock options, warrants and unvested stock [Member]
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| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||
| Antidilutive securities excluded from computation of earnings per share | 18,300,000 | 5,600,000 | 16,500,000 | 3,100,000 |
| X | ||||||||||
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- Definition
Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. No definition available.
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- Definition
The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS). No definition available.
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- Definition
Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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