Commitments and Contingencies - Additional Information (Detail)	1 Months Ended	12 Months Ended
	Mar. 31, 2016 USD ($) ft²	Dec. 31, 2014 USD ($) ft²	Dec. 31, 2016 USD ($)	Sep. 30, 2014 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Outstanding material claims			$ 0
Reserve for indemnification			0
Lease agreement period		37 months
Lease agreement area of office space | ft²	3,188	3,700
Initial base annual rent		$ 5,604
Total base rent payable	$ 67,000			$ 205,000
Gross future minimum payments under all non-cancelable operating leases, 2017			$ 107,195