UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	$ 11,883	$ (36,736)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	299	294
Intangible amortization	13,781	5,560
Stock-based and employee stock purchase compensation expense	11,461	1,870
Stock appreciation rights market adjustment	261	396
Warrant expense		3,109
Debt issuance costs amortization	1,820	1,020
Loss on debt extinguishment	26,146	22,639
Change in operating assets and liabilities:
Trade receivables	(11,030)	(12,071)
Inventory	(982)	(1,223)
Prepaid expenses and other assets	(3,715)	(8,169)
Other non-current assets		(476)
Trade payables	1,623	2,987
Accrued expenses and other current liabilities	9,461	7,738
Other non-current liabilities	16	30
Net cash provided by (used in) operating activities	61,024	(13,032)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(298)	(2)
Milestone payments	(100,000)
Net cash used in investing activities	(100,298)	(2)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of common stock upon initial public offering		147,628
Initial public offering issuance costs		(11,021)
Proceeds from issuance of common stock	30,000
Common stock issuance costs	(300)
Proceeds from long term debt	200,000	200,000
Debt issuance costs	(9,147)	(5,804)
Extinguishment of debt	(200,000)	(102,538)
Extinguishment of debt exit fees	(22,000)	(18,047)
Proceeds from exercised options	1,794	283
Repurchase of common stock		(167)
Tax payments for employees shares withheld		(17)
Net cash provided by financing activities	347	210,317
NET (DECREASE) INCREASE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	(38,927)	197,283
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH-Beginning of period	229,381	25,207
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH-End of period	190,454	222,490
Supplemental Disclosure of Cash Flow Information:
Cash paid during the year for interest	$ 15,997	19,549
Supplemental Disclosures of Noncash Investing and Financing Activities:
Warrant financing		2,359
Warrant liability reclassified to equity		5,468
Series A Convertible Preferred Stock
Supplemental Disclosures of Noncash Investing and Financing Activities:
Preferred Stock accrued return		22,780
Accretion of issuance costs		5,562
Series B Convertible Preferred Stock
Supplemental Disclosures of Noncash Investing and Financing Activities:
Preferred Stock accrued return		777
Accretion of issuance costs		53
Series C Convertible Preferred Stock
Supplemental Disclosures of Noncash Investing and Financing Activities:
Preferred Stock accrued return		3,347
Accretion of issuance costs		$ 921