Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 83,016	$ 69,767
Short-term investments	58,000	101,079
Accounts receivable, net	21,822	16,801
Inventory	27,117	21,772
Prepaid expenses and other current assets	35,620	25,477
Total current assets	225,575	234,896
Property and equipment, net	80,411	45,126
Goodwill	1,931	2,428
Other intangible asset	1,093	1,153
Long-term investments	3,271	1,961
Other assets	8,047	9,718
Total assets	320,328	295,282
Current liabilities:
Accounts payable	16,754	11,052
Accrued expenses and other current liabilities	32,098	35,553
Financing liability — current	9,747	9,565
Midcap credit facility - current	20,000
Deferred revenue — current	3,670	1,733
Recognized loss on purchase commitments — current	14,105	9,393
Total current liabilities	96,374	67,296
Mann Group convertible note	8,829	8,829
Accrued interest - Mann Group convertible note	57	55
Financing liability — long term	94,375	94,512
Midcap credit facility - long term	17,921	39,264
Senior convertible notes	226,487	225,397
Recognized loss on purchase commitments — long term	50,534	62,916
Operating lease liability	4,289	5,343
Deferred revenue — long term	69,469	37,684
Milestone liabilities	3,772	4,524
Total liabilities	572,107	545,820
Commitments and contingencies (Note 15)
Stockholders' deficit:
Undesignated preferred stock, $0.01 par value - 10,000,000 shares authorized; no shares issued or outstanding as of September 30, 2023 and December 31, 2022
Common stock, $0.01 par value - 800,000,000 and 400,000,000 shares authorized as of September 30, 2023 and December 31, 2022, respectively, and 269,543,539 and 263,793,305 shares issued and outstanding as of September 30, 2023 and December 31, 2022, respectively	2,695	2,638
Additional paid-in capital	2,975,891	2,964,293
Accumulated other comprehensive income	443
Accumulated deficit	(3,230,808)	(3,217,469)
Total stockholders' deficit	(251,779)	(250,538)
Total liabilities and stockholders' deficit	$ 320,328	$ 295,282