Stockholders' Equity - Summary of Stock Option Activity and Weighted Average Exercise Prices (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended	9 Months Ended
	Jun. 30, 2024	Sep. 30, 2024	Dec. 31, 2023
Options
Beginning balance (in shares)	3,137	3,137
Granted (in shares)		1,000
Cancelled or expired (in shares)		(1,348)
Ending balance (in shares)		2,789
Options vested and expected to vest (in shares)		677
Options exercisable at end of period (in shares)		1,600
Weighted Average Exercise Price
Beginning balance (in dollars per share)	$ 22.68	$ 22.68
Granted (in dollars per share)		1.02
Cancelled or expired (in dollars per share)		22.12
Ending balance (in dollars per share)		15.20
Options vested and expected to vest (in dollars per share)		6.89
Options exercisable at end of period (in dollars per share)		$ 22.61
Weighted Average Remaining Contractual Term
Weighted average remaining contract term, Options outstanding	4 years 10 months 2 days	6 years 1 month 28 days
Weighted average remaining contract term, Options vested and expected to vest		9 years 14 days
Weighted average remaining contract term, Options exercisable		3 years 11 months 8 days
Aggregate Intrinsic Value
Aggregate intrinsic value, Options outstanding		$ 0	$ 40
Aggregate intrinsic value, Options vested and expected to vest		0
Aggregate intrinsic value, Options exercisable		$ 0