Investments - Short-term Investments (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Marketable Securities [Line Items]
Adjusted Cost	$ 88,306	$ 124,290
Unrealized Gains	247	43
Unrealized Losses	0	(15)
Fair Value	88,553	124,318
U.S. Treasury bills
Marketable Securities [Line Items]
Adjusted Cost	58,951	63,809
Unrealized Gains	229	24
Unrealized Losses	0	0
Fair Value	59,180	63,833
Corporate bonds
Marketable Securities [Line Items]
Adjusted Cost	26,495	39,152
Unrealized Gains	14	18
Unrealized Losses	0	(1)
Fair Value	26,509	39,169
Government and government agency
Marketable Securities [Line Items]
Adjusted Cost	2,860	20,624
Unrealized Gains	4	0
Unrealized Losses	0	(14)
Fair Value	$ 2,864	20,610
Asset-backed bonds
Marketable Securities [Line Items]
Adjusted Cost		705
Unrealized Gains		1
Unrealized Losses		0
Fair Value		$ 706