Summary of Company's RSU Activity (Detail) - Restricted Stock Units and Performance Stock Units $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) $ / shares shares
Number of Shares
Outstanding, Begining Balance | shares	1,445,163
Granted | shares	1,079,727
Vested | shares	(255,953)
Cancelled/forfeited | shares	(61,690)
Outstanding, Ending Balance | shares	2,207,247
Weighted Average Grant Date Fair Value
Weighted Average Grant Date Fair Value , Begining Balance | $ / shares	$ 24.50
Weighted Average Grant Date Fair Value, Granted | $ / shares	44.03
Weighted Average Grant Date Fair Value, Vested | $ / shares	23.83
Weighted Average Grant Date Fair Value, Cancelled/forfeited | $ / shares	35.95
Weighted Average Grant Date Fair Value, Ending Balance | $ / shares	$ 33.81
Aggregate Intrinsic Value
Aggregate Intrinsic Value, Outstanding | $	$ 117,999