Quarterly report pursuant to Section 13 or 15(d)

Related Party Transaction - Additional Information (Detail)

v3.7.0.1
Related Party Transaction - Additional Information (Detail) - Michelle Griffin
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2017
USD ($)
Jun. 30, 2017
USD ($)
Related Party Transaction [Line Items]    
Consulting services paid $ 0.1 $ 0.1
Accounts payable, related parties $ 0.4 $ 0.4