Stock-Based Compensation - Summary of Option Activity (Details) $ / shares in Units, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares
2015 Plan | Service-Based Vesting Stock Options
Number of Shares
Balance at beginning of period (in shares) | shares	6,208,274
Granted (in shares) | shares	0
Forfeited / Expired (in shares) | shares	0
Exercised (in shares) | shares	(213,783)
Balance at end of period (in shares) | shares	5,994,491	6,208,274
Weighted Average Exercise Price
Balance at beginning of period (in USD per share) | $ / shares	$ 9.59
Granted (in USD per share) | $ / shares	0
Forfeited / Expired (in USD per share) | $ / shares	0
Exercised (in USD per share) | $ / shares	9.44
Balance at end of period (in USD per share) | $ / shares	$ 9.59	$ 9.59
Weighted Average Remaining Contractual Life (years)
Weighted average contractual term of options outstanding	4 years 3 months 18 days	5 years
Aggregate Intrinsic Value
Balance at beginning of period | $	$ 36,513
Exercised | $
Balance at beginning of period | $	$ 18,139	$ 36,513
2015 Plan | Performance-Based Stock Options
Number of Shares
Balance at beginning of period (in shares) | shares	3,081,855
Granted (in shares) | shares	0
Forfeited / Expired (in shares) | shares	0
Exercised (in shares) | shares	(14,975)
Balance at end of period (in shares) | shares	3,066,880	3,081,855
Weighted Average Exercise Price
Balance at beginning of period (in USD per share) | $ / shares	$ 10.05
Granted (in USD per share) | $ / shares	0
Forfeited / Expired (in USD per share) | $ / shares	0
Exercised (in USD per share) | $ / shares	9.68
Balance at end of period (in USD per share) | $ / shares	$ 10.05	$ 10.05
Weighted Average Remaining Contractual Life (years)
Weighted average contractual term of options outstanding	2 years 6 months 29 days	3 years 3 months 25 days
Aggregate Intrinsic Value
Balance at beginning of period | $	$ 16,699
Exercised | $
Balance at beginning of period | $	$ 7,872	$ 16,699
2021 Equity Plan
Number of Shares
Balance at beginning of period (in shares) | shares	4,387,501
Granted (in shares) | shares	909,431
Forfeited / Expired (in shares) | shares	0
Exercised (in shares) | shares	0
Balance at end of period (in shares) | shares	5,296,932	4,387,501
Exercisable (in shares) | shares	1,779,123
Weighted Average Exercise Price
Balance at beginning of period (in USD per share) | $ / shares	$ 22.91
Granted (in USD per share) | $ / shares	12.77
Forfeited / Expired (in USD per share) | $ / shares	0
Exercised (in USD per share) | $ / shares	0
Balance at end of period (in USD per share) | $ / shares	21.17	$ 22.91
Exercisable (in USD per share) | $ / shares	$ 22.98
Weighted Average Remaining Contractual Life (years)
Weighted average contractual term of options outstanding	8 years 3 months 18 days	8 years 9 months 21 days
Weighted average contractual term of options exercisable	7 years 11 months 26 days
Aggregate Intrinsic Value
Balance at beginning of period | $	$ 0
Exercised | $
Balance at beginning of period | $	7,516	$ 0
Aggregate intrinsic value of options exercisable | $	$ 0