Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 73,711	$ 168,215
Marketable securities	225,232	205,391
Accounts receivable, net	9,764	3,105
Inventory	14,817	10,461
Prepaid expenses and other current assets	16,893	17,921
Total current assets	340,417	405,093
Property and equipment, net	2,035	2,152
Operating lease assets	16,272	17,305
Intangible assets, net	45,964	47,002
Restricted cash and other assets	2,023	2,021
Total assets	406,711	473,573
Current liabilities:
Accounts payable	5,357	10,163
Accrued expenses	23,853	28,572
Current portion of operating lease obligation	4,796	4,665
Deferred revenue	5,000
Total current liabilities	39,006	43,400
Operating lease obligation, net of current portion	14,150	15,409
Related party long-term debt, net of debt discount	215,858	215,670
Other long-term liabilities	20	21
Related party liability related to sale of future royalties	14,646	14,176
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.0001 par value; 5,000 shares authorized; 338 shares issued and outstanding (equivalent to 3,378 shares of common stock upon conversion at a 10:1 ratio)	36,127	36,127
Common stock, $0.0001 par value; 150,000 shares authorized; 101,969 shares and 101,627 shares issued and outstanding, respectively	10	10
Additional paid-in capital	1,145,875	1,137,470
Accumulated other comprehensive income	6	3
Accumulated deficit	(1,058,987)	(988,713)
Total stockholders’ equity	123,031	184,897
Total liabilities and stockholders’ equity	$ 406,711	$ 473,573