CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 95,305	$ 45,072
Marketable securities	244,544	267,057
Accounts receivable, net	24,587	26,367
Inventory	1,384	1,140
Prepaid expenses and other current assets	15,041	14,500
Total current assets	380,861	354,136
Property and equipment, net	3,744	3,864
Operating lease right-of-use assets	10,601	11,180
Intangible assets, net	22,298	23,037
Deferred tax assets	85,558	87,680
Non-current inventory and other	3,569	3,851
Total assets	506,631	483,748
Current liabilities:
Accounts payable and accrued liabilities	28,398	27,590
Product revenue allowances	33,194	31,915
Total current liabilities	61,592	59,505
Operating lease non-current liabilities	11,720	12,455
Other non-current liabilities	1,735	843
Total liabilities	75,047	72,803
Commitments and contingencies (Notes 8 and 13)
Stockholders’ equity:
Preferred stock, $0.001 par value; 20,000,000 shares authorized, and no shares issued or outstanding at June 30, 2020 and December 31, 2019	0	0
Common stock, $0.001 par value; 150,000,000 shares authorized; 54,628,336 and 53,549,612 shares issued and outstanding at June 30, 2020 and December 31, 2019, respectively	55	54
Additional paid-in capital	642,398	631,307
Accumulated other comprehensive income	596	249
Accumulated deficit	(211,465)	(220,665)
Total stockholders’ equity	431,584	410,945
Total liabilities and stockholders’ equity	$ 506,631	$ 483,748