Condensed Consolidated Balance Sheets - USD ($)	Jul. 31, 2016	Jan. 31, 2016
Current assets:
Cash and cash equivalents	$ 205,818,000	$ 604,742,000
Marketable securities	364,356,000	0
Accounts receivable, net of allowance of $944 and $2,146 as of January 31, 2016 and July 31, 2016	118,532,000	126,324,000
Inventory	22,630,000	20,649,000
Deferred commissions, current	14,023,000	15,703,000
Prepaid expenses and other current assets	20,933,000	20,652,000
Total current assets	746,292,000	788,070,000
Property and equipment, net	78,523,000	52,629,000
Intangible assets, net	7,312,000	6,980,000
Deferred income taxes, non-current	815,000	536,000
Other assets, non-current	29,262,000	22,568,000
Total assets	862,204,000	870,783,000
Current liabilities:
Accounts payable	30,526,000	38,187,000
Accrued compensation and benefits	33,369,000	32,995,000
Accrued expenses and other liabilities	20,464,000	14,076,000
Deferred revenue, current	127,430,000	94,514,000
Liability related to early exercised stock options	4,274,000	4,760,000
Total current liabilities	216,063,000	184,532,000
Deferred revenue, non-current	129,876,000	121,690,000
Other liabilities, non-current	2,209,000	1,207,000
Total liabilities	348,148,000	307,429,000
Commitments and contingencies	0	0
Stockholders’ equity:
Preferred stock, par value of $0.0001 per share— 20,000 shares authorized as of January 31, 2016 and July 31, 2016; no shares issued and outstanding as of January 31, 2016 and July 31, 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 July 31, 2016; 190,509 (Class A 28,769, Class B 161,740) and 196,466 (Class A 71,516, Class B 124,950) shares issued and outstanding as of January 31, 2016 and July 31, 2016	20,000	19,000
Additional paid-in capital	1,193,936,000	1,118,670,000
Accumulated other comprehensive income	852,000	0
Accumulated deficit	(680,752,000)	(555,335,000)
Total stockholders’ equity	514,056,000	563,354,000
Total liabilities and stockholders’ equity	$ 862,204,000	$ 870,783,000