Fair Value Measurements - Summarizes of fair value assets (Details) - USD ($) $ in Thousands		Dec. 31, 2023	Dec. 31, 2022
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Amortized Cost		$ 285,831	$ 252,672
Gross Unrealized Gains		0	0
Gross Unrealized Losses		(181)	(754)
Estimated Fair Value		285,650	251,918
Fair Value Level 1 | Money market funds
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Amortized Cost	[1]	211,741	168,730
Gross Unrealized Gains	[1]	0	0
Gross Unrealized Losses	[1]	0	0
Estimated Fair Value	[1]	211,741	168,730
Fair Value Level 2 | U.S. governmental securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Amortized Cost		74,090	83,942
Gross Unrealized Gains		0	0
Gross Unrealized Losses		(181)	(754)
Estimated Fair Value		$ 73,909	$ 83,188

[1] Included in “Cash and cash equivalents” in the Company's consolidated balance sheets as of December 31, 2023 and 2022, in addition to cash of $36.8 million and $49.8 million, respectively.