Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jul. 31, 2017	Jan. 31, 2017
Current assets:
Cash and cash equivalents	$ 171,894	$ 183,675
Marketable securities	351,123	362,986
Accounts receivable, net of allowance of $2,000 and $2,020 as of January 31, 2017 and July 31, 2017	168,404	168,978
Inventory	33,660	23,498
Deferred commissions, current	19,700	15,787
Prepaid expenses and other current assets	24,494	25,157
Total current assets	769,275	780,081
Property and equipment, net	81,850	81,695
Intangible assets, net	5,808	6,560
Deferred income taxes, non-current	877	844
Other assets, non-current	32,322	30,565
Total assets	890,132	899,745
Current liabilities:
Accounts payable	52,092	52,719
Accrued compensation and benefits	42,537	39,252
Accrued expenses and other liabilities	18,309	21,697
Deferred revenue, current	169,638	158,095
Liability related to early exercised stock options	816	1,362
Total current liabilities	283,392	273,125
Deferred revenue, non-current	157,961	145,031
Other liabilities, non-current	3,373	3,159
Total liabilities	444,726	421,315
Commitments and contingencies (Note 5)
Stockholders’ equity:
Preferred stock, par value of $0.0001 per share— 20,000 shares authorized as of January 31, 2017 and July 31, 2017; no shares issued and outstanding as of January 31, 2017 and July 31, 2017	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, 2017 and July 31, 2017; 204,364 (Class A 87,027, Class B 117,337) and 210,975 (Class A 96,478, Class B 114,497) shares issued and outstanding as of January 31, 2017 and July 31, 2017	20	20
Additional paid-in capital	1,372,221	1,281,452
Accumulated other comprehensive loss	(280)	(562)
Accumulated deficit	(926,555)	(802,480)
Total stockholders’ equity	445,406	478,430
Total liabilities and stockholders’ equity	$ 890,132	$ 899,745