Condensed Consolidated Statements of Cash Flows - Unaudited - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Cash flows from operating activities
Net loss before noncontrolling interest	$ (74,917)	$ (73,799)
Adjustments to reconcile net loss before noncontrolling interest to net cash flows used in operating activities:
Depreciation and amortization	3,065	2,372
Equity-based compensation	12,957	15,489
Gain on marketable securities, net	(1,942)	(3,802)
Gain on lease disposition	143	0
Loss on disposal of equipment	464	131
Changes in operating assets and liabilities
Interest receivable	672	(1,373)
Prepaid and other assets	7,202	(6,162)
Accounts payable and accrued expenses	(8,126)	(5,838)
Income taxes payable	(526)	43
Net cash flows used in operating activities	(61,008)	(72,939)
Cash flows from investing activities
Purchases of marketable securities	(98,138)	(82,880)
Sales and maturities of marketable securities	149,239	171,445
Purchase of equipment and facility expansion	(4,247)	(1,596)
Net cash flows provided by investing activities	46,854	86,969
Cash flows from financing activities
Proceeds from sales of Class A ordinary shares, net of offering costs	0	139,855
Payments on finance leases	(26)	(26)
Net cash flows (used in) provided by financing activities	(26)	139,829
Net change in cash and cash equivalents	(14,180)	153,859
Cash, beginning of period	99,120	60,649
Cash, end of period	84,940	214,508
Supplemental disclosure of non-cash investing and financing activities:
Right of use assets obtained in exchange for lease obligations	2,005	2,621
Exchange of Class B common stock	5,253	14,902
Exchange of Class B common stock	5,252	14,902
Impact of equity transactions and compensation on redeemable noncontrolling interest	7,756	16,708
Equipment and facility expansion included in accounts payable and accrued expenses	$ 395	$ 780