Annual report pursuant to Section 13 and 15(d)

Income Taxes - Schedule of Reconciliation of Unrecognized Tax Benefits Excluding Impact of Interest and Penalties (Detail)

v3.7.0.1
Income Taxes - Schedule of Reconciliation of Unrecognized Tax Benefits Excluding Impact of Interest and Penalties (Detail)
12 Months Ended
Dec. 31, 2016
USD ($)
Income Tax Uncertainties [Abstract]  
Increase for tax positions taken during the current period $ 5,654,803
Unrecognized tax benefits at December 31, 2016 $ 5,654,803