Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 182,937	$ 261,287
Available-for-sale securities	136,936	178,107
Accounts receivable	1,174	2,884
Related party accounts receivable, net	52,541	51,634
Prepaid expenses and other current assets	9,216	6,293
Total current assets	382,804	500,205
Restricted cash	8,247	8,747
Property and equipment, net	18,842	21,075
Convertible note hedges	137,302	86,466
Intangible assets, net	182,722
Goodwill	649
Other assets	1,412	2,628
Total assets	731,978	619,121
Current liabilities:
Accounts payable and related party accounts payable, net	19,752	8,589
Accrued research and development costs	8,042	4,245
Accrued expenses and other current liabilities	29,055	23,301
Current portion of capital lease obligations	3,525	2,631
Current portion of deferred rent	7,821	5,544
Current portion of deferred revenue	4,127	7,191
Current portion of PhaRMA notes payable	8,405	24,964
Current portion of contingent consideration	14,578
Total current liabilities	95,305	76,465
Capital lease obligations, net of current portion	141	306
Deferred rent, net of current portion	2,490	6,395
Deferred revenue, net of current portion		1,798
Contingent consideration, net of current portion	81,682
Note hedge warrants	120,121	75,328
Convertible senior notes	230,717	220,620
PhaRMA notes payable, net of current portion	131,944	132,964
Other liabilities	10,120	10,120
Stockholders' equity:
Additional paid-in capital	1,237,569	1,205,183
Accumulated deficit	(1,178,318)	(1,110,115)
Accumulated other comprehensive income (loss)	61	(86)
Total stockholders' equity	59,458	95,125
Total liabilities and stockholders' equity	731,978	619,121
Class A common stock
Stockholders' equity:
Common stock	131	127
Class B common stock
Stockholders' equity:
Common stock	$ 15	$ 16