Quarterly report pursuant to Section 13 or 15(d)

Net Loss per Common Share - Additional Information (Detail)

v3.5.0.2
Net Loss per Common Share - Additional Information (Detail) - shares
6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount 12,348,653 10,489,695
Restricted Stock [Member]    
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount 8,705,137