Debt - Schedule of Future Debt Maturities (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Equity Method Investments And Cost Method Investments [Abstract]
Remainder of 2016	$ 14,502
2017	6,990
2018	6,990
Total debt maturities	28,482
Less: debt discount and issuance costs	(275)
Total debt maturities, net of debt discount and issuance costs	28,207
Less: current portion of long-term debt	(18,135)	$ (2,866)
Long-term debt, net of current portion	$ 10,072	$ 12,887