Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 115,457	$ 160,945
Short-term investments	347,619
Short-term investments		252,226
Accounts receivable, net	152,520	84,774
Inventories	75,172	59,978
Prepaid expenses and other current assets	26,180	19,138
Total current assets	716,948	577,061
Property and equipment, net	100,966	103,756
Long-term investments	22,635	0
In-process research and development	300,000	0
Goodwill	251,017	0
Other non-current assets	176,279	197,132
Total assets	1,567,845	877,949
Current liabilities:
Accounts payable and accrued liabilities	157,157	132,672
Current portion of deferred revenue	36,495	34,457
Total current liabilities	193,652	167,129
Long-term liabilities:
Deferred revenue, less current portion	6,004	30,618
Other long-term liabilities	3,668	2,633
Total long-term liabilities	9,672	33,251
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.001 par value, 5,000 shares authorized; none issued	0	0
Common stock, $0.001 par value, 250,000 shares authorized; 160,053 shares issued and outstanding at September 30, 2018 and 144,395 shares issued and outstanding at December 31, 2017	160	144
Additional paid-in capital	2,569,449	1,806,159
Accumulated other comprehensive income (loss)	(305)	63,836
Accumulated deficit	(1,204,783)	(1,192,570)
Total stockholders’ equity	1,364,521	677,569
Total liabilities and stockholders’ equity	$ 1,567,845	$ 877,949