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Summary of Significant Accounting Policies - Schedule of Anti-dilutive Securities (Detail) - shares	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Class of Stock [Line Items]
Anti-dilutive securities	56,334,596	27,180,850
Options [Member]
Class of Stock [Line Items]
Anti-dilutive securities	2,794,229	317,729
Restricted stock units [Member]
Class of Stock [Line Items]
Anti-dilutive securities	9,262,518	3,384,940
Warrants [Member]
Class of Stock [Line Items]
Anti-dilutive securities	44,277,849	23,478,181

X

- 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Glossary Antidilution



-URI http://asc.fasb.org/extlink&oid=6505113



Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Glossary Diluted Earnings Per Share



-URI http://asc.fasb.org/extlink&oid=6510752



Reference 3: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Glossary Contingent Stock Agreement



-URI http://asc.fasb.org/extlink&oid=6508534



Reference 4: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 260



-SubTopic 10



-Section 50



-Paragraph 1



-Subparagraph (c)



-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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+ References

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