Net Loss Per Share - Calculation of Basic and Diluted Net Loss (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Numerator:
Net loss	$ (101,802)	$ (109,781)
Denominator:
Common stock shares outstanding (in shares)	140,245,132	136,524,528
Weighted average number of shares outstanding, basic (in shares)	149,404,188	136,524,528
Weighted average number of shares outstanding, diluted (in shares)	149,404,188	136,524,528
Net loss per share, basic (usd per share)	$ (0.68)	$ (0.80)
Net loss per share, diluted (usd per share)	$ (0.68)	$ (0.80)
Pre-Funded Warrant
Denominator:
Pre-funded warrants outstanding (in shares)	9,159,056	0