Fair Value Measurements - Assets Measured at Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Assets
Assets	$ 358,538	$ 286,876
Cash equivalents
Assets
Assets	244,569	184,977
Commercial paper
Assets
Assets	24,609	27,388
Corporate debt securities
Assets
Assets	58,737	70,608
U.S. government securities
Assets
Assets	30,623	3,903
Level 1
Assets
Assets	243,685	184,977
Level 1 | Cash equivalents
Assets
Assets	243,685	184,977
Level 2
Assets
Assets	114,853	101,899
Level 2 | Cash equivalents
Assets
Assets	884
Level 2 | Commercial paper
Assets
Assets	24,609	27,388
Level 2 | Corporate debt securities
Assets
Assets	58,737	70,608
Level 2 | U.S. government securities
Assets
Assets	$ 30,623	$ 3,903