CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating activities:
Net loss	$ (58,141)	$ (12,892)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Equity-based compensation expense	7,259	6,565
Depreciation and amortization	72	13
Amortization or accretion on marketable securities	(1,371)	946
Non Cash Contributions From Noncontrolling Interests	4	0
Deferred Income Tax Benefit	0	(19,568)
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	(755)	(1,140)
Accounts payable	(630)	3,137
Accrued expenses and other current liabilities	2,640	1,031
Income tax payable	(75)	0
Net cash used in operating activities	(50,997)	(21,908)
Investing activities:
Proceeds from sales and maturities of marketable securities	104,482	91,731
Purchase of marketable securities	(89,139)	(57,020)
Purchase of property and equipment	(159)	0
Net cash provided by (used in) investing activities	15,184	34,711
Financing activities:
Contributions From Noncontrolling Interests	0	1,153
Issuance Of Convertible Notes	1,825	800
Proceeds from net issuance of common stock under equity-based compensation plans	(36)	1,588
Net cash provided by financing activities	1,789	3,541
Net increase (decrease) in cash and cash equivalents	(34,024)	16,344
Cash and cash equivalents at beginning of period	156,152	59,774
Cash and cash equivalents at end of period	122,128	76,118
Non-cash financing activities and supplemental cash flow information
Conversion Of Convertible Note Into Noncontrolling Interest	175	0
Purchases of property and equipment included in accounts payable and accrued expenses and other liabilities	49	0
Cash paid for income taxes	75	0
Tax Withholding On Stock Awards Not Yet Paid	$ 0	$ 22