Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Oct. 31, 2017	Jan. 31, 2017
Current assets:
Cash and cash equivalents	$ 182,039	$ 183,675
Marketable securities	369,337	362,986
Accounts receivable, net of allowance of $2,000 and $2,073 as of January 31, 2017 and October 31, 2017	202,006	168,978
Inventory	37,208	23,498
Deferred commissions, current	20,187	15,787
Prepaid expenses and other current assets	24,522	25,157
Total current assets	835,299	780,081
Property and equipment, net	84,264	81,695
Intangible assets, net	5,432	6,560
Deferred income taxes, non-current	965	844
Other assets, non-current	36,596	30,565
Total assets	962,556	899,745
Current liabilities:
Accounts payable	66,664	52,719
Accrued compensation and benefits	50,077	39,252
Accrued expenses and other liabilities	24,945	21,697
Deferred revenue, current	183,889	158,095
Liability related to early exercised stock options	568	1,362
Total current liabilities	326,143	273,125
Deferred revenue, non-current	173,641	145,031
Other liabilities, non-current	3,651	3,159
Total liabilities	503,435	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 October 31, 2017; no shares issued and outstanding as of January 31, 2017 and October 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 October 31, 2017; 204,364 (Class A 87,027, Class B 117,337) and 216,016 (Class A 109,178, Class B 106,838) shares issued and outstanding as of January 31, 2017 and October 31, 2017	20	20
Additional paid-in capital	1,428,024	1,281,452
Accumulated other comprehensive loss	(719)	(562)
Accumulated deficit	(968,204)	(802,480)
Total stockholders’ equity	459,121	478,430
Total liabilities and stockholders’ equity	$ 962,556	$ 899,745