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Nature of Operations and Basis of Presentation - Additional Information (Detail) (USD $)
3 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Mar. 31, 2014
Inception [Member]
May 22, 2014
Subsequent Event [Member]
Organization And Nature Of Operations [Line Items]        
Net losses since inception     $ 199,967,000  
Estimated cash and cash equivalents       70,000
Stockholders' deficit (11,018,116) (10,659,818) (11,018,000)  
Net working capital deficit $ 1,385,000