Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Cash Flows from Operating Activities:
Net income (loss)	$ 27,004	$ (37,615)
Adjustments to reconcile to net cash used in operating activities:
Amortization of right of use asset	229	311
Equity (income) loss, net	(11,846)	9,420
Impairments of ownership interests and advances	2,521	20,039
Gain from observable price changes	(8,505)	(1,224)
Gain from sales of ownership interests	(35,284)	0
Change in fair value of ownership interests	19,255	0
Other, net	(22)	175
Stock-based compensation, including liability classified awards	1,779	965
Changes in assets and liabilities:
Prepaid expenses and other current assets	(238)	(137)
Accounts payable, accrued expenses, and other current liabilities	(3,045)	(77)
Net cash used in operating activities	(8,152)	(8,143)
Cash Flows from Investing Activities:
Acquisitions of ownership interests	0	(7,534)
Proceeds from sales and distributions from ownership interests	60,832	7,903
Advances and loans to ownership interests	(2,718)	(1,638)
Net cash provided by (used in) investing activities	58,114	(1,269)
Cash Flows from Financing Activities:
Repurchases of common stock	(40,655)	0
Tax withholdings related to equity-based awards	(144)	(40)
Net cash used in financing activities	(40,799)	(40)
Net change in cash, cash equivalents and restricted cash	9,163	(9,452)
Cash, cash equivalents and restricted cash equivalents at beginning of period	15,601	25,053
Cash, cash equivalents and restricted cash at end of period	$ 24,764	$ 15,601