Quarterly report pursuant to Section 13 or 15(d)

Net Loss Per Common Share - Additional Information (Detail)

v2.4.0.8
Net Loss Per Common Share - Additional Information (Detail)
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]        
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount 9,164,131 5,326,424 8,889,050 5,228,805
Restricted Stock [Member]
       
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]        
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount     8,287,384