UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities:
Net (loss) income including noncontrolling interests in subsidiaries	$ (110,939)	$ 150,365
Adjustments to reconcile net (loss) income including noncontrolling interests in subsidiaries to net cash (used in) provided by operating activities:
Change in fair value of investment	0	2,752
Gain on sale of investment	0	(3,591)
Depreciation and amortization	13,514	10,688
Amortization of debt discount and issuance costs	90	110
Change in fair value of Series A redeemable convertible preferred stock embedded derivatives	(1,613)	(8,280)
Change in fair value of Series A warrants	(1,895)	4,651
Change in fair value of Series B warrants	(11,598)	44,037
Loss from Warrant Exercises	2,004	0
Compensation expense for share-based awards	3,820	2,053
Loss on foreign currency exchange	3,324	89
Change in fair value of equity securities	263,695	(87,527)
Gain on sale of equity securities	(125,318)	(116,129)
Earnings on equity investment in joint venture	(42,531)	(3,530)
Deferred income taxes	(17,810)	15,742
Changes in assets and liabilities:
Accounts receivable	998	(747)
Inventories	(5,291)	1,906
Prepaid expenses and other assets	(5,986)	(78)
Accounts payable and accrued expenses	(136)	760
Royalties and contingent legal fees payable	(1,764)	301
Deferred revenue	100	(246)
Net cash (used in) provided by operating activities	(37,336)	13,326
Acquisition, net of cash acquired	0	(33,250)
Cash flows from investing activities:
Patent acquisition	(5,000)	(21,000)
Sale of investment at fair value	0	3,591
Purchases of equity securities	(112,142)	(66,624)
Sales of equity securities	273,934	154,784
Distributions received from equity investment in joint venture	28,404	2,362
Purchases of property and equipment	(732)	(91)
Net cash provided by investing activities	184,464	35,751
Cash flows from financing activities:
Repurchase of common stock	(50,988)	(4,012)
Issuance of Senior Secured Notes, net of lender fee	0	115,000
Paydown of Senior Secured Notes	(120,000)	(50,000)
Dividend on Series A Redeemable Convertible Preferred Stock	(2,799)	(1,452)
Taxes paid related to net share settlement of share-based awards	(1,600)	0
Proceeds from exercise of Series A warrants	9,250	0
Proceeds from exercise of stock options	0	202
Net cash (used in) provided by financing activities	(166,137)	59,738
Effect of exchange rates on cash and cash equivalents	(2,566)	0
(Decrease) increase in cash and cash equivalents and restricted cash	(21,575)	108,815
Cash and cash equivalents and restricted cash, beginning	309,361	200,546
Cash and cash equivalents and restricted cash, ending	287,786	309,361
Supplemental schedule of cash flow information:
Interest paid	7,229	7,336
Income taxes paid	384	25
Noncash investing and financing activities:
Patent acquisition in exchange of notes receivable	0	4,000
Accrued patent costs	9,000	5,000
Distribution to noncontrolling interests in subsidiaries	14,126	1,168
Cash distributed for notes receivable	$ 0	$ (4,021)