Fair Value Measurements - Summary of Changes in Fair Value of Financial Instruments (Detail) - Derivative liability associated with the Medicis settlement $ in Thousands |
3 Months Ended |
---|---|
Mar. 31, 2017
USD ($)
| |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] | |
Fair value as of December 31, 2016 | $ 2,022 |
Change in fair value | 60 |
Fair value as of March 31, 2017 | $ 2,082 |