Stock-Based Compensation - Employee Stock Purchase Plan (Details) - shares		1 Months Ended	9 Months Ended
	Jan. 01, 2023	Oct. 31, 2021	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Stock-Based Compensation
Common stock reserved for issuance (in shares)			10,231,375		8,653,472
2021 ESPP
Stock-Based Compensation
Common stock reserved for issuance (in shares)		292,031	772,507		566,720
Additional common stock reserved under the plan (in shares)	274,716
Shares issued under plan (in shares)			68,929	0
Shares available for future issuance (in shares)			772,507
2021 ESPP | Maximum
Stock-Based Compensation
Annual increase in number of shares reserved and available for issuance (in shares)		584,062
Annual increase in number of shares reserved for issuance (as a percent)		1.00%