Investments - Short-term Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Marketable Securities [Line Items]
Adjusted Cost	$ 98,014	$ 124,290
Unrealized Gains	2	43
Unrealized Losses	(19)	(15)
Fair Value	97,997	124,318
U.S. Treasury bills
Marketable Securities [Line Items]
Adjusted Cost	68,187	63,809
Unrealized Gains	0	24
Unrealized Losses	(11)	0
Fair Value	68,176	63,833
Corporate bonds
Marketable Securities [Line Items]
Adjusted Cost	26,280	39,152
Unrealized Gains	2	18
Unrealized Losses	(5)	(1)
Fair Value	26,277	39,169
Government and government agency
Marketable Securities [Line Items]
Adjusted Cost	2,824	20,624
Unrealized Gains	0	0
Unrealized Losses	(3)	(14)
Fair Value	2,821	20,610
Asset-backed bonds
Marketable Securities [Line Items]
Adjusted Cost	723	705
Unrealized Gains	0	1
Unrealized Losses	0	0
Fair Value	$ 723	$ 706