Summary of Company's RSU Activity (Detail) - Restricted Stock Units - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Number of Shares
Outstanding, Begining Balance	373,706
Granted	1,287,453
Vested	(84,409)
Cancelled/forfeited	(131,587)
Outstanding, Ending Balance	1,445,163	373,706
Weighted Average Grant Date Fair Value
Weighted Average Grant Date Fair Value , Begining Balance	$ 21.07
Weighted Average Grant Date Fair Value, Granted	25.22	$ 21.07
Weighted Average Grant Date Fair Value, Vested	21.05
Weighted Average Grant Date Fair Value, Cancelled/forfeited	23.97
Weighted Average Grant Date Fair Value, Ending Balance	$ 24.50	$ 21.07
Aggregate Intrinsic Value
Aggregate Intrinsic Value, Outstanding	$ 61,824