Fair Value Measurements - Fair Value of Financial Assets and Liabilities Measured on Recurring Basis (Details) - Fair Value Measurements Recurring - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Assets:
Total	$ 311,257	$ 371,498
Level 1
Assets:
Total	201,244	211,986
Level 2
Assets:
Total	110,013	159,512
Money Market Funds
Assets:
Total	42,498	56,397
Money Market Funds \| Level 1
Assets:
Total	42,498	56,397
Commercial Paper
Assets:
Total	21,379	82,152
Commercial Paper \| Level 2
Assets:
Total	21,379	82,152
Corporate Debt Securities
Assets:
Total	44,036	61,894
Corporate Debt Securities \| Level 2
Assets:
Total	44,036	61,894
Equity Securities
Assets:
Total	45,616	41,937
Equity Securities \| Level 1
Assets:
Total	45,616	41,937
Asset-backed Securities
Assets:
Total	44,598	10,505
Asset-backed Securities \| Level 2
Assets:
Total	44,598	10,505
U.S. Government Securities
Assets:
Total	113,130	113,652
U.S. Government Securities \| Level 1
Assets:
Total	$ 113,130	113,652
U.S. Agency Securities
Assets:
Total		4,961
U.S. Agency Securities \| Level 2
Assets:
Total		$ 4,961