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Net Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023
Derivative Financial Instruments
Net loss (numerator)	$ (13,650)	$ (8,299)	$ (26,791)	$ (50,486)	$ (53,515)	$ (52,796)	$ (48,740)	$ (156,797)
Weighted average shares (denominator) - basic (in shares)	42,390			29,268			37,853	29,026
Weighted average shares (denominator) - diluted (in shares)	42,390			29,268			37,853	29,026
Basic net loss per share (in dollars per share)	$ (0.32)			$ (1.72)			$ (1.29)	$ (5.40)
Diluted net loss per share (in dollars per share)	$ (0.32)			$ (1.72)			$ (1.29)	$ (5.40)
Warrants to purchase common stock (in shares)	8,620						8,620
Potentially dilutive securities (in shares)							16,222	5,688
Warrants 2024, Pre Funded Warrants
Derivative Financial Instruments
Warrants to purchase common stock (in shares)			5,565
Exercise price (in dollars per share)			$ 0.001