Fair Value Measurements - Schedule of Financial Assets and Liabilities Subject to Fair Value Measurements on a Recurring Basis and the Level of Inputs Used (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Assets:
Marketable investments:	$ 101,925	$ 144,566
Liabilities:
Private Warrants	19	1,069
U.S. treasury securities
Assets:
Marketable investments:	24,338	86,784
U.S. agency and government sponsored securities
Assets:
Marketable investments:		2,732
Corporate bonds
Assets:
Marketable investments:	67,733	44,906
Certificate of deposit
Assets:
Marketable investments:	500
Fair Value, Recurring
Assets:
Total cash equivalents	81,173	103,436
Marketable equity investments	2,865	7,755
Total marketable investments	84,409	150,727
Liabilities:
Derivative liability	40,074
Private Warrants	19	1,069
Total liabilities	40,093
Fair Value, Recurring | U.S. treasury securities
Assets:
Total cash equivalents	15,199
Marketable investments:	9,139	86,784
Fair Value, Recurring | U.S. agency and government sponsored securities
Assets:
Marketable investments:		2,732
Fair Value, Recurring | Commercial paper
Assets:
Marketable investments:	4,172	9,647
Fair Value, Recurring | Corporate bonds
Assets:
Marketable investments:	67,733	43,809
Fair Value, Recurring | Certificate of deposit
Assets:
Marketable investments:	500
Fair Value, Recurring | Money market funds
Assets:
Total cash equivalents	60,792	101,842
Fair Value, Recurring | Commercial paper
Assets:
Total cash equivalents	5,182	497
Fair Value, Recurring | Corporate bonds
Assets:
Total cash equivalents		1,097
Level 1 | Fair Value, Recurring
Assets:
Total cash equivalents	75,991	101,842
Marketable equity investments	2,865	7,755
Total marketable investments	12,004	94,539
Liabilities:
Derivative liability	0
Private Warrants	0	0
Total liabilities	0
Level 1 | Fair Value, Recurring | U.S. treasury securities
Assets:
Total cash equivalents	15,199
Marketable investments:	9,139	86,784
Level 1 | Fair Value, Recurring | U.S. agency and government sponsored securities
Assets:
Marketable investments:		0
Level 1 | Fair Value, Recurring | Commercial paper
Assets:
Marketable investments:	0	0
Level 1 | Fair Value, Recurring | Corporate bonds
Assets:
Marketable investments:	0	0
Level 1 | Fair Value, Recurring | Certificate of deposit
Assets:
Marketable investments:	0
Level 1 | Fair Value, Recurring | Money market funds
Assets:
Total cash equivalents	60,792	101,842
Level 1 | Fair Value, Recurring | Commercial paper
Assets:
Total cash equivalents	0	0
Level 1 | Fair Value, Recurring | Corporate bonds
Assets:
Total cash equivalents		0
Level 2 | Fair Value, Recurring
Assets:
Total cash equivalents	5,182	1,594
Marketable equity investments	0	0
Total marketable investments	72,405	56,188
Liabilities:
Derivative liability	0
Private Warrants	0	0
Total liabilities	0
Level 2 | Fair Value, Recurring | U.S. treasury securities
Assets:
Total cash equivalents	0
Marketable investments:	0	0
Level 2 | Fair Value, Recurring | U.S. agency and government sponsored securities
Assets:
Marketable investments:		2,732
Level 2 | Fair Value, Recurring | Commercial paper
Assets:
Marketable investments:	4,172	9,647
Level 2 | Fair Value, Recurring | Corporate bonds
Assets:
Marketable investments:	67,733	43,809
Level 2 | Fair Value, Recurring | Certificate of deposit
Assets:
Marketable investments:	500
Level 2 | Fair Value, Recurring | Money market funds
Assets:
Total cash equivalents	0	0
Level 2 | Fair Value, Recurring | Commercial paper
Assets:
Total cash equivalents	5,182	497
Level 2 | Fair Value, Recurring | Corporate bonds
Assets:
Total cash equivalents		1,097
Level 3 | Fair Value, Recurring
Assets:
Total cash equivalents	0	0
Marketable equity investments	0	0
Total marketable investments	0	0
Liabilities:
Derivative liability	40,074
Private Warrants	19	1,069
Total liabilities	40,093
Level 3 | Fair Value, Recurring | U.S. treasury securities
Assets:
Total cash equivalents	0
Marketable investments:	0	0
Level 3 | Fair Value, Recurring | U.S. agency and government sponsored securities
Assets:
Marketable investments:		0
Level 3 | Fair Value, Recurring | Commercial paper
Assets:
Marketable investments:	0	0
Level 3 | Fair Value, Recurring | Corporate bonds
Assets:
Marketable investments:	0	0
Level 3 | Fair Value, Recurring | Certificate of deposit
Assets:
Marketable investments:	0
Level 3 | Fair Value, Recurring | Money market funds
Assets:
Total cash equivalents	0	0
Level 3 | Fair Value, Recurring | Commercial paper
Assets:
Total cash equivalents	$ 0	0
Level 3 | Fair Value, Recurring | Corporate bonds
Assets:
Total cash equivalents		$ 0