Equity-Based Compensation - Stock Options (Details) - Stock options $ / shares in Units, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares
Number of Units
Outstanding, beginning (in shares) | shares	6,242,784
Granted (in shares) | shares	2,183,202
Exercised (in shares) | shares	(131,643)
Cancelled (in shares) | shares	(871,931)
Outstanding, end (in shares) | shares	7,422,412	6,242,784
Options exercisable, end (in shares) | shares	3,175,533
Weighted Average Exercise Price
Outstanding, beginning (in dollars per share)	$ 17.12
Granted (in dollars per share)	9.38
Exercised (in dollars per share)	6.19
Cancelled (in dollars per share)	18.16
Outstanding, end (in dollars per share)	14.91	$ 17.12
Options exercisable, end (in dollars per share)	$ 18.07
Stock options
Weighted average remaining contractual term	8 years 29 days	7 years 8 months 26 days
Weighted average remaining contractual term, exercisable	6 years 10 months 28 days
Aggregate intrinsic value, beginning | $	$ 5,835
Aggregate intrinsic value, end | $	2,329	$ 5,835
Aggregate intrinsic value, exercisable | $	$ 1,472
Weighted average grant date fair value (in dollars per share)	$ 7.20