Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Apr. 30, 2016	Jan. 31, 2016
Current assets:
Cash and cash equivalents	$ 286,096	$ 604,742
Marketable securities	320,899	0
Accounts receivable, net of allowance of $944 and $1,509 as of January 31, 2016 and April 30, 2016	97,164	126,324
Inventory	21,980	20,649
Deferred commissions, current	12,136	15,703
Prepaid expenses and other current assets	23,154	20,652
Total current assets	761,429	788,070
Property and equipment, net	71,255	52,629
Intangible assets, net	6,654	6,980
Deferred income taxes, non-current	605	536
Other assets, non-current	21,532	22,568
Total assets	861,475	870,783
Current liabilities:
Accounts payable	42,444	38,187
Accrued compensation and benefits	18,560	32,995
Accrued expenses and other liabilities	15,970	14,076
Deferred revenue, current	107,223	94,514
Liability related to early exercised stock options	4,584	4,760
Total current liabilities	188,781	184,532
Deferred revenue, non-current	129,634	121,690
Other liabilities, non-current	1,643	1,207
Total liabilities	320,058	307,429
Commitments and contingencies (Note 5)	0	0
Stockholders’ equity:
Preferred stock, par value of $0.0001 per share— 20,000 shares authorized as of January 31, 2016 and April 30, 2016; no shares issued and outstanding as of January 31, 2016 and April 30, 2016	0	0
Class A and Class B common stock, par value of $0.0001 per share— 2,250,000 (Class A 2,000,000, Class B 250,000) shares authorized as of January 31, 2016 and April 30, 2016; 190,509 (Class A 28,769, Class B 161,740) and 194,124 (Class A 66,438, Class B 127,686) shares issued and outstanding as of January 31, 2016 and April 30, 2016	19	19
Additional paid-in capital	1,159,385	1,118,670
Accumulated other comprehensive income	807	0
Accumulated deficit	(618,794)	(555,335)
Total stockholders’ equity	541,417	563,354
Total liabilities and stockholders’ equity	$ 861,475	$ 870,783