Share-Based Compensation (Details) $ in Thousands		12 Months Ended
	May 02, 2023 shares	Dec. 31, 2023 USD ($) employee shares	Dec. 31, 2022 USD ($) shares	Sep. 30, 2023 shares
Share-Based Compensation
Stock-based compensation expense		$ 25,371	$ 39,734
Share-based compensation expense		1,700
Cumulative compensation cost		800
2013 Equity Incentive Plan
Share-Based Compensation
Extended term of the equity incentive plan	10 years
Number of shares reserved for issuance reduced | shares	3,808,287
Restructuring and related expenses
Share-Based Compensation
Stock-based compensation expense		357	$ 6,998
Share-based compensation expense		$ 2,500
Number of employees reduction in workforce | employee		40
Performance-Contingent Awards - RSAs
Share-Based Compensation
Granted (in shares) | shares		165,000
Fair value		$ 1,400
Share-based compensation expense		$ 700
Performance-Contingent Awards - RSUs
Share-Based Compensation
Granted (in shares) | shares		367,000	43,000
Fair value		$ 3,700	$ 400
Share-based compensation expense		400
Shares approved for grant (in shares) | shares				59,000
RSUs
Share-Based Compensation
Stock-based compensation expense		$ 21,817	35,726
Granted (in shares) | shares		2,228,184
Share-based compensation expense			$ 0