Share-Based Compensation - Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Stock Options
Beginning balance (in shares)	12,853,072
Exercised (in shares)	(692,220)
Cancelled/Forfeited/Expired (in shares)	(3,759,088)
Ending balance (in shares)	8,401,764	12,853,072
Vested and exercisable, end of period (in shares)	6,891,094
Weighted Average Exercise Price
Beginning balance (in dollars per share)	$ 2.39
Exercised (in dollars per share)	0.65
Cancelled/Forfeited/Expired (in dollars per share)	3.64
Ending balance (in dollars per share)	1.97	$ 2.39
Vested and exercisable, end of period (in dollars per share)	$ 1.81
Weighted-Averages Life (Years) and Aggregate Intrinsic Value
Weighted- Average Life (Years)	6 years	7 years
Weighted-average life, vested and exercisable	5 years 7 months 6 days
Intrinsic value, Beginning	$ 7,055
Intrinsic value, Ending	7,795	$ 7,055
Aggregate intrinsic value, vested and exercisable	$ 6,948