Net Income (Loss) per Share - Summary of Basic and Diluted Net Loss Per Share Attributable to Common Stockholders (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Numerator:
Net income (loss)	$ 17,144	$ 26,522	$ (36,288)	$ (14,282)	$ 43,666	$ (50,570)
Denominator:
Weighted average common shares outstanding—basic	75,254,186		62,282,291		75,222,119	61,145,254
Net income (loss) per share—basic	$ 0.23		$ (0.58)		$ 0.58	$ (0.83)
Weighted average common shares outstanding—diluted	80,026,488		62,282,291		79,994,422	61,145,254
Net income (loss) per share—diluted	$ 0.21		$ (0.58)		$ 0.55	$ (0.83)