Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 144,761	$ 149,800
Inventory	40,039	38,195
Accounts receivable, net	23,094	50,875
Prepaid expenses and other current assets	29,618	33,140
Total current assets	237,512	272,010
Property and equipment, net	5,622	6,754
Operating lease assets	30,337	33,852
Goodwill	55,053	55,053
Other intangible assets, net	81,095	108,127
Other assets	26,275	49,754
Total assets	435,894	525,550
Current liabilities:
Accounts payable	19,708	33,588
Accrued expenses and other current liabilities	87,364	104,456
Short-term deferred revenue	1,265	20,906
Current portion of refund liability to customer	13,681	0
Current portion of long-term debt	65,947	97,543
Total current liabilities	187,965	256,493
Deferred revenue, net of current portion	43,296	21,474
Operating lease liabilities, net of current portion	30,683	33,703
Derivative liability	760	1,820
Liability related to sale of future royalties, net	58,236	53,079
Refund liability to customer, net of current portion	26,788	0
Other non-current liabilities	74,313	82,525
Total liabilities	422,041	449,094
Commitments and contingencies (Note 13)
Stockholders' equity:
Preferred stock $0.00001 par value, 25,000,000 shares authorized; 0 shares issued and    outstanding at September 30, 2022 and December 31, 2021	0	0
Common stock $0.00001 par value; 350,000,000 shares authorized at September 30, 2022 and December 31, 2021; 183,951,583 and 177,000,963 shares issued and outstanding at September 30, 2022 and December 31, 2021, respectively	2	1
Additional paid-in capital	1,559,206	1,536,800
Accumulated other comprehensive loss	6	6
Accumulated deficit	(1,545,361)	(1,460,351)
Total stockholders' equity	13,853	76,456
Total liabilities and stockholders' equity	$ 435,894	$ 525,550