Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 172,872	$ 113,006
Marketable securities	72,431	67,321
Prepaid expenses	13,597	8,374
Inventory	13,642	0
Receivables and other current assets	15,435	10,787
Total current assets	287,977	199,488
Marketable securities	0	1,414
Property, plant and equipment, net	10,227	9,362
Goodwill	5,646	5,646
Intangible Assets	5,490	4,868
Operating lease right-of-use assets	302,849	281,996
Restricted cash and other non-current assets	51,204	52,128
Total assets	663,393	554,902
Current liabilities:
Accounts payable	10,894	25,092
Accrued expenses and other current liabilities	56,531	51,985
Operating lease liability, current portion	67,591	51,160
Total current liabilities	135,016	128,237
Operating lease liability, net of current portion	239,266	230,230
Other non-current liabilities	92	92
Total liabilities	374,374	358,559
Commitments and contingencies (Note 9)
Stockholders’ equity:
Preferred stock, $0.01 par value, 5,000 shares authorized; 0 shares issued and outstanding at June 30, 2023 and December 31, 2022	0	0
Common stock, $0.01 par value, 250,000 shares authorized; 106,454 and 82,923 shares issued and outstanding at June 30, 2023 and December 31, 2022, respectively	1,065	830
Additional paid-in capital	4,328,489	4,186,086
Accumulated other comprehensive loss	(2,364)	(4,070)
Accumulated deficit	(4,038,171)	(3,986,503)
Total stockholders’ equity	289,019	196,343
Total liabilities and stockholders’ equity	$ 663,393	$ 554,902