Stock-Based Compensation - Stock Options (Details) $ / shares in Units, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares
Options to purchase common stock
Stock Based Compensation
Shares available for grant, beginning balance	3,263,000
Additional shares authorized	3,500,000
Options granted (in shares)	(497,000)
RSUs granted (in shares)	(5,728,000)
RSUs forfeited/cancelled (in shares)	760,000
Shares available for grant, end balance	1,298,000	3,263,000
Number of shares Outstanding
Outstanding, beginning balance (in shares)	5,300,000
Options granted (in shares)	497,000
Options exercised (in shares)	(265,000)
Outstanding, end balance (in shares)	5,532,000	5,300,000
Exercisable (in shares)	4,525,000
Vested and expected to vest (in shares)	5,466,000
Weighted-Average Exercise Price
Outstanding, beginning balance (in dollars per share) | $ / shares	$ 21.11
Granted (in dollars per share) | $ / shares	44.29
Exercised (in dollars per share) | $ / shares	13.26
Outstanding, end balance (in dollars per share) | $ / shares	23.57	$ 21.11
Exercisable (in dollars per share) | $ / shares	13.81
Vested and expected to vest (in dollars per share) | $ / shares	$ 23.05
Additional disclosures
Weighted average contractual term, options outstanding	4 years 7 months 9 days	4 years 10 months 2 days
Exercisable (in years)	3 years 8 months 26 days
Vested and expected to vest (in years)	4 years 6 months 21 days
Aggregate intrinsic value, options outstanding | $	$ 142,513	$ 131,385
Aggregate intrinsic value, options exercisable | $	141,977
Aggregate intrinsic value, vested and expected to vest | $	$ 142,478
Non-employee stock options
Number of shares Outstanding
Outstanding, end balance (in shares)	23,005
Vested and expected to vest (in shares)	0
Restricted stock units
Stock Based Compensation
RSUs granted (in shares)	(5,728,000)
RSUs forfeited/cancelled (in shares)	760,000