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	Mar. 31, 2024	Dec. 31, 2023
Assets:
Marketable investments:	$ 105,147	$ 144,566
Liabilities:
Warrant liabilities	248	1,069
U.S. treasury securities
Assets:
Marketable investments:	17,187	86,784
U.S. agency and government sponsored securities
Assets:
Marketable investments:	2,522	2,732
Corporate bonds
Assets:
Marketable investments:	65,931	44,906
Certificate of deposit
Assets:
Marketable investments:	500
Fair Value, Recurring
Assets:
Total cash equivalents	85,172	103,436
Marketable equity investments	5,360	7,755
Total marketable investments	108,768	150,727
Fair Value, Recurring | Private Warrants
Liabilities:
Warrant liabilities	248	1,069
Fair Value, Recurring | U.S. treasury securities
Assets:
Marketable investments:	15,448	86,784
Fair Value, Recurring | U.S. agency and government sponsored securities
Assets:
Marketable investments:	2,522	2,732
Fair Value, Recurring | Commercial paper
Assets:
Marketable investments:	19,007	9,647
Fair Value, Recurring | Corporate bonds
Assets:
Marketable investments:	65,931	43,809
Fair Value, Recurring | Certificate of deposit
Assets:
Marketable investments:	500
Fair Value, Recurring | Money market funds
Assets:
Total cash equivalents	83,433	101,842
Fair Value, Recurring | U.S. treasury securities
Assets:
Total cash equivalents	1,739
Fair Value, Recurring | Commercial paper
Assets:
Total cash equivalents		497
Fair Value, Recurring | Corporate bonds
Assets:
Total cash equivalents		1,097
Level 1 | Fair Value, Recurring
Assets:
Total cash equivalents	85,172	101,842
Marketable equity investments	5,360	7,755
Total marketable investments	20,808	94,539
Level 1 | Fair Value, Recurring | Private Warrants
Liabilities:
Warrant liabilities	0	0
Level 1 | Fair Value, Recurring | U.S. treasury securities
Assets:
Marketable investments:	15,448	86,784
Level 1 | Fair Value, Recurring | U.S. agency and government sponsored securities
Assets:
Marketable investments:	0	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	83,433	101,842
Level 1 | Fair Value, Recurring | U.S. treasury securities
Assets:
Total cash equivalents	1,739
Level 1 | Fair Value, Recurring | Commercial paper
Assets:
Total cash equivalents		0
Level 1 | Fair Value, Recurring | Corporate bonds
Assets:
Total cash equivalents		0
Level 2 | Fair Value, Recurring
Assets:
Total cash equivalents	0	1,594
Marketable equity investments	0	0
Total marketable investments	87,960	56,188
Level 2 | Fair Value, Recurring | Private Warrants
Liabilities:
Warrant liabilities	0	0
Level 2 | Fair Value, Recurring | U.S. treasury securities
Assets:
Marketable investments:	0	0
Level 2 | Fair Value, Recurring | U.S. agency and government sponsored securities
Assets:
Marketable investments:	2,522	2,732
Level 2 | Fair Value, Recurring | Commercial paper
Assets:
Marketable investments:	19,007	9,647
Level 2 | Fair Value, Recurring | Corporate bonds
Assets:
Marketable investments:	65,931	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 | U.S. treasury securities
Assets:
Total cash equivalents	0
Level 2 | Fair Value, Recurring | Commercial paper
Assets:
Total cash equivalents		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
Level 3 | Fair Value, Recurring | Private Warrants
Liabilities:
Warrant liabilities	248	1,069
Level 3 | Fair Value, Recurring | U.S. treasury securities
Assets:
Marketable investments:	0	0
Level 3 | Fair Value, Recurring | U.S. agency and government sponsored securities
Assets:
Marketable investments:	0	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 | U.S. treasury securities
Assets:
Total cash equivalents	$ 0
Level 3 | Fair Value, Recurring | Commercial paper
Assets:
Total cash equivalents		0
Level 3 | Fair Value, Recurring | Corporate bonds
Assets:
Total cash equivalents		$ 0