Net Loss Per Share - Summary of Basic and Diluted Net Loss Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
Numerator:
Net loss	$ (160,325)	$ (146,828)	$ (126,260)	$ (122,055)	$ (307,153)	$ (248,315)
Denominator:
Weighted average number of common shares outstanding— basic	59,769,640		59,266,322		59,722,147	59,148,246
Dilutive effect of shares of common stock equivalents resulting from common stock options and restricted stock units	0		0		0	0
Weighted average common stock outstanding —diluted	59,769,640		59,266,322		59,722,147	59,148,246
Net loss per share—basic	$ (2.68)		$ (2.13)		$ (5.14)	$ (4.2)
Net loss per share—diluted	$ (2.68)		$ (2.13)		$ (5.14)	$ (4.2)