Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities:
Net loss	$ (23,122)	$ (62,147)	$ (53,079)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization		180	2,590
Stock-based compensation		8,349	10,594
Amortization of debt issuance costs		46	995
Gain on sale of non-financial assets	0	0	(132,818)
Asset Impairment Charges	0	0	1,600
Gain (Loss) on Extinguishment of Debt	0	0	255
Changes in operating assets and liabilities:
(Increase) decrease in accounts receivable		372	52,201
(Increase) decrease in inventory		0	345
(Increase) decrease in prepaid expenses and other current assets		1,985	(6,008)
Decrease in other assets		459	314
Decrease in accounts payable and other liabilities		(13,433)	14,281
Net cash provided by (used in) operating activities		(64,189)	(108,730)
Cash and Cash Equivalents, Period Increase (Decrease)		(34,145)	16,139
Cash and cash equivalents	92,118	92,118	52,251
Cash paid for interest		307	16,892
Initial recognition of right of use asset	1,704	1,704
Issuance of common stock under Equity Incentive Plans, value	19,123
Cash flows from investing activities:
Purchases of property and equipment		(1,198)	(33)
Proceeds from Sale of Productive Assets		0	160,385
Purchases of investments		(28,880)	(53,197)
Maturities of investments		26,092	229,500
Net cash (used in) provided by investing activities		(3,986)	336,655
Cash flows from financing activities:
Proceeds from issuance of common stock		36,705	0
Repurchase of common stock		(2,675)	(1,026)
Repayment of debt borrowings, net of fees		0	(210,760)
Net cash used in financing activities		34,030	(211,786)
Net increase (decrease) in cash and cash equivalents		(34,145)	16,139
Cash and cash equivalents at beginning of period		126,263	36,112
Cash and cash equivalents at end of period	92,118	92,118	52,251
Supplemental disclosure of cash flow information:
Cash paid for interest		307	$ 16,892
Initial recognition of right of use asset	1,704	$ 1,704
Issuance of common stock under Equity Incentive Plans, value	$ 19,123