Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 402,102	$ 146,363
Short-term investments	767,775	255,845
Accounts receivable, net of allowance for doubtful accounts of $2,021 and $586 at December 31, 2015 and 2014, respectively	172,752	193,182
Inventories	13,747	7,952
Deferred tax assets, current portion	0	25,126
Prepaid expenses and other current assets	30,883	28,669
Total current assets	1,387,259	657,137
Property and equipment, net	78,368	82,298
Goodwill	750,288	750,288
Intangibles assets, net	214,560	261,625
Deposits and other long-term assets	10,998	7,533
TOTAL ASSETS	2,441,473	1,758,881
Current liabilities:
Accounts payable	43,650	34,057
Accrued and other current liabilities	29,820	24,596
Accrued compensation	79,294	64,551
Deferred revenue, current portion	305,169	203,877
Total current liabilities	457,933	327,081
Convertible senior notes, net	706,198	0
Deferred revenue, non-current portion	221,829	148,666
Deferred tax liabilities, non-current portion	0	24,903
Other long-term liabilities	11,141	7,403
Total liabilities	$ 1,397,101	$ 508,053
Commitments and contingencies (NOTE 9)
Stockholders' equity:
Convertible preferred stock, par value of $0.0001 per share; 100,000 shares authorized, none issued or outstanding as of December 31, 2015 and 2014	$ 0	$ 0
Common stock, par value of $0.0001 per share; 1,000,000 shares authorized, 161,643 and 152,860 shares issued and outstanding as of December 31, 2015 and 2014, respectively	16	15
Additional paid-in capital	2,403,088	1,918,546
Treasury stock, at cost; 3,333 shares and no shares as of December 31, 2015 and 2014, respectively	(150,000)	0
Accumulated other comprehensive loss	(2,225)	(441)
Accumulated deficit	(1,206,507)	(667,292)
Total stockholders’ equity	1,044,372	1,250,828
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 2,441,473	$ 1,758,881