Stock-Based Compensation​ - Schedule of Stock Option Activity (Details) $ / shares in Units, $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares
Number of Shares
Beginning balance (in shares) | shares	5,335,974
Exercised (in shares) | shares	(1,591,076)
Expired/forfeited (in shares) | shares	(139,385)
Ending balance (in shares) | shares	3,605,513	5,335,974
Exercisable (in shares) | shares	1,260,335
Vested and expected to vest (in shares) | shares	3,605,513
Weighted Average Exercise Price
Beginning balance (in dollars per share) | $ / shares	$ 0.12
Exercise (in dollars per share) | $ / shares	0.12
Expired/forfeited (in dollars per share) | $ / shares	0.12
Ending balance (in dollars per share) | $ / shares	0.12	$ 0.12
Exercisable (in dollars per share) | $ / shares	0.13
Vested and expected to vest (in dollars per share) | $ / shares	$ 0.12
Weighted Average Remaining Contractual Life (Years)
Weighted average remaining contractual life (in years)	6 years 10 months 28 days	7 years 7 months 28 days
Exercisable (in years)	7 years 3 days
Vested and expected to vest (in years)	6 years 10 months 28 days
Aggregate Intrinsic Value (In millions)
Beginning balance | $	$ 9.4
Exercised | $	5.5
Ending balance | $	17.8	$ 9.4
Exercisable | $	6.2
Vested and expected to vest | $	$ 17.8