Quarterly report pursuant to Section 13 or 15(d)

Fair Value of Assets and Liabilities - Additional Information (Detail)

v3.2.0.727
Fair Value of Assets and Liabilities - Additional Information (Detail) - USD ($)
Jun. 30, 2015
Dec. 31, 2014
Debt Instrument Fair Value Carrying Value [Abstract]    
Derivative warrant liability $ 0 $ 0