Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 1,173,457	$ 401,238
Short-term investments	518,719	498,124
Accounts receivable, net	279,088	322,757
Current portion of deferred commissions	85,097	76,780
Prepaid expenses and other current assets	54,666	43,636
Total current assets	2,111,027	1,342,535
Deferred commissions, less current portion	67,984	61,990
Long-term investments	319,795	262,658
Property and equipment, net	213,501	181,620
Intangible assets, net	72,587	65,854
Goodwill	104,430	82,534
Other assets	35,082	36,576
Total assets	2,924,406	2,033,767
Current liabilities:
Accounts payable	24,478	38,080
Accrued expenses and other current liabilities	173,508	171,636
Current portion of deferred revenue	1,019,304	861,782
Total current liabilities	1,217,290	1,071,498
Deferred revenue, less current portion	47,491	33,319
Convertible senior notes, net	1,140,063	507,812
Other long-term liabilities	37,136	34,177
Total liabilities	2,441,980	1,646,806
Stockholders’ equity:
Common stock	171	167
Additional paid-in capital	1,577,713	1,405,317
Accumulated other comprehensive loss	(933)	(21,133)
Accumulated deficit	(1,094,525)	(997,390)
Total stockholders’ equity	482,426	386,961
Total liabilities and stockholders’ equity	$ 2,924,406	$ 2,033,767