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Stock-Based Compensation - Stock-Based Compensation Expense (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended		3 Months Ended		9 Months Ended
	May 31, 2024	May 31, 2017	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	May 23, 2024	Dec. 31, 2023	May 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding (in shares)			13,440,527		13,440,527			12,223,637
Weighted-average exercise price of stock options outstanding (in dollars per share)			$ 15.30		$ 15.30			$ 15.11
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense			$ 5,970	$ 4,790	$ 18,174	$ 14,014
Research and Development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense			2,940	2,335	9,033	6,996
General and Administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense			$ 3,030	$ 2,455	$ 9,141	$ 7,018
2016 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Maximum Employee Subscription Rate		10.00%
Share-based compensation, number of shares authorized (in shares)		800,000
Offering period		6 months
Purchase price of common stock percent of the fair market value		85.00%
Common stock purchased (in shares)					44,129
StockIncentivePlan2023Member
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized	2,000,000
Share-based compensation, number of shares authorized (in shares)							6,850,000		4,850,000

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