CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Operating activities:
Net loss	$ (79,368)	$ (90,355)
Adjustments to reconcile net loss to net cash used in operating activities:
Equity-based compensation expense	18,760	15,179
Accretion on marketable securities	(7,031)	(3,516)
Depreciation and amortization	153	153
Non-cash contributions from noncontrolling interests	0	4
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	(2,181)	1,161
Accounts payable	(938)	(169)
Accrued expenses and other current liabilities	(3,933)	(178)
Income tax payable	0	(4,282)
Net cash used in operating activities	(74,538)	(82,003)
Investing activities:
Purchase of marketable securities	(456,298)	(170,592)
Maturities of marketable securities	284,142	198,094
Purchase of property and equipment	0	(208)
Net cash provided by (used in) investing activities	(172,156)	27,294
Financing activities:
Issuance of common stock and pre-funded warrants, net of issuance costs	262,652	38,388
Net issuance of common stock under equity-based compensation plans	4,421	178
Acquisition of noncontrolling interests	(3,792)	0
Issuance of convertible notes	0	1,825
Net cash provided by financing activities	263,281	40,391
Net decrease in cash and cash equivalents	16,587	(14,318)
Cash and cash equivalents at beginning of period	98,434	156,152
Cash and cash equivalents at end of period	115,021	141,834
Non-cash financing activities and supplemental cash flow information
Cash paid (refunded) for income taxes	(2,274)	4,708
Conversion of convertible note into noncontrolling interest	$ 0	$ 175