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Fair Value Measurements - Assets and Liabilities Measured and Recorded at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Liabilities
Marketable securities and investments purchased	$ 99,548	$ 174,400
Recurring \| Public Warrants
Liabilities
Liabilities	2,241		$ 2,505
Recurring \| Private Placement Warrants
Liabilities
Liabilities	1,784		1,722
Recurring \| Level 1 \| Public Warrants
Liabilities
Liabilities	2,241		2,505
Recurring \| Level 2 \| Private Placement Warrants
Liabilities
Liabilities	1,784		1,722
Recurring \| Level 3
Liabilities
Transfers in or out of Level 3	0		0
Recurring \| Commercial Paper
Assets
Assets	81,021		84,909
Recurring \| Commercial Paper \| Level 1
Assets
Assets	81,021		84,909
Recurring \| Corporate Bonds
Assets
Assets	203,592		239,473
Recurring \| Corporate Bonds \| Level 1
Assets
Assets	203,592		239,473
Recurring \| Government Bonds
Assets
Assets	43,582		56,689
Recurring \| Government Bonds \| Level 1
Assets
Assets	$ 43,582		$ 56,689