Basic and Diluted Net Loss Per Share - Summary of Common Stock Reserved (Details)	Mar. 31, 2019 shares
Class Of Stock [Line Items]
Amount of common stock reserved	4,140,323
Stock Options
Class Of Stock [Line Items]
Amount of common stock reserved	1,226,906
Nonvested RSUs
Class Of Stock [Line Items]
Amount of common stock reserved	1,054,199
Additional Shares Available for Grant Under Equity Plan
Class Of Stock [Line Items]
Amount of common stock reserved	1,859,218