Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 80,894	$ 135,188
Investments	155,871	142,779
Accounts receivable, net	32,280	47,086
Inventory	3,672	4,224
Prepaid expenses and other current assets	18,097	19,821
Restricted cash	567	1,064
Total current assets	291,381	350,162
Property and equipment, net	766	1,139
Operating lease right-of-use assets	5,296	6,238
Restricted cash	387	633
Total assets	297,830	358,172
Current liabilities:
Accounts payable	2,287	2,773
Accrued expenses	51,808	58,415
Operating lease liabilities	3,084	2,872
Other current liabilities	1,749	1,848
Total current liabilities	58,928	65,908
Convertible senior notes	170,497	170,105
Deferred royalty obligation	132,718	132,718
Operating lease liabilities, net of current portion	4,500	6,097
Other liabilities	2,435	0
Total liabilities	369,078	374,828
Stockholders' deficit
Preferred stock, $0.0001 par value; 5,000 shares authorized; none issued and outstanding	0	0
Common stock, $0.0001 par value; 400,000 shares authorized, 114,340 shares issued and outstanding at June 30 2023; 200,000 shares authorized; 113,213 shares issued and outstanding at December 31,2022	12	12
Additional paid-in capital	1,340,218	1,327,909
Accumulated other comprehensive loss	(783)	(638)
Accumulated deficit	(1,410,695)	(1,343,939)
Total stockholders' deficit	(71,248)	(16,656)
Total liabilities and stockholders' deficit	$ 297,830	$ 358,172