Fair Value Measurements - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Assets
Marketable securities	$ 292,265	$ 170,784
Fair Value, Recurring
Assets
Restricted cash	1,088	1,088
Total assets measured at fair value	374,903	226,026
Fair Value, Recurring \| U.S. Treasury Securities
Assets
Marketable securities	243,324	139,453
Fair Value, Recurring \| U.S. Government Agency Securities
Assets
Marketable securities	15,978	23,476
Fair Value, Recurring \| Commercial Paper
Assets
Marketable securities	17,502	5,876
Fair Value, Recurring \| Corporate debt securities
Assets
Marketable securities	15,461	1,979
Fair Value, Recurring \| Money Market Funds [Member]
Assets
Cash equivalents	81,550	54,154
Fair Value, Recurring \| Level 1
Assets
Restricted cash	1,088	1,088
Total assets measured at fair value	82,638	55,242
Fair Value, Recurring \| Level 1 \| Money Market Funds [Member]
Assets
Cash equivalents	81,550	54,154
Fair Value, Recurring \| Level 2
Assets
Total assets measured at fair value	292,265	170,784
Fair Value, Recurring \| Level 2 \| U.S. Treasury Securities
Assets
Marketable securities	243,324	139,453
Fair Value, Recurring \| Level 2 \| U.S. Government Agency Securities
Assets
Marketable securities	15,978	23,476
Fair Value, Recurring \| Level 2 \| Commercial Paper
Assets
Marketable securities	17,502	5,876
Fair Value, Recurring \| Level 2 \| Corporate debt securities
Assets
Marketable securities	$ 15,461	$ 1,979