CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities:
Net income (loss)	$ (19,576)	$ (314,092)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	6,415	7,095
Stock-based compensation expense	10,523	276,020
Loss on debt extinguishment	0	1,590
Loss (Income) from equity method investments	(7,787)	(2,532)
Other noncash items	3,497	2,011
Changes in operating assets and liabilities	(76,568)	(50,211)
Net cash provided by (used in) operating activities	(83,496)	(80,119)
Cash flows from investing activities:
Purchase of property and equipment, net	(8,504)	(646)
Purchase of intangible assets	(12,168)	(4,018)
Investment in loans receivable and other	(4,510)	(70,307)
Investments in marketable debt securities	(285,077)	0
Proceeds from repayment of loans receivable and other	4,279	1,277
Proceeds from sale of business and property, net of cash divested	500	(2,644)
Net cash provided by (used in) investing activities	(305,480)	(76,338)
Cash flows from financing activities:
Proceeds from initial public offering	0	1,170,942
Proceeds from other equity issuances, net	20,315	551
Proceeds from the issuance of long-term debt	0	100,000
Repayments of long-term debt	(2,500)	(118,648)
Equity and debt issuance costs and other	0	(9,768)
Net cash provided by (used in) financing activities	17,815	1,143,077
Net increase (decrease) in cash, cash equivalents and restricted cash and equivalents	(371,161)	986,620
Cash, cash equivalents and restricted cash and equivalents from continuing operations, beginning of period	1,054,820	135,178
Cash, cash equivalents and restricted cash and equivalents from discontinued operations, beginning of period	0	3,917
Cash, cash equivalents and restricted cash and equivalents, beginning of period	1,054,820	139,095
Cash, cash equivalents and restricted cash and equivalents, end of period	$ 683,659	$ 1,125,715