Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Oct. 31, 2015	Jan. 31, 2015
Current assets:
Cash and cash equivalents	$ 573,307	$ 192,707
Accounts receivable, net of allowance of $210 and $566 as of January 31, 2015 and October 31, 2015	112,126	59,032
Inventory	25,549	21,605
Deferred commissions, current	13,612	9,431
Prepaid expenses and other current assets	14,028	11,195
Total current assets	738,622	293,970
Property and equipment, net	47,117	39,859
Intangible assets, net	7,306	8,284
Deferred income taxes, non-current	4,886	5,529
Other long-term assets	20,097	14,177
Total assets	818,028	361,819
Current liabilities:
Accounts payable	21,684	11,007
Accrued compensation and benefits	25,030	13,811
Accrued expenses and other liabilities	14,440	6,106
Deferred revenue, current	71,481	32,199
Liability related to early exercised stock options	4,942	6,485
Deferred income taxes, current	5,186	5,829
Total current liabilities	142,763	75,437
Deferred revenue—non-current	90,175	41,470
Other long-term liabilities	1,136	802
Total liabilities	234,074	117,709
Commitments and contingencies (Note 5)	0	0
Convertible preferred stock, par value of $0.0001 per share— 123,880 and no shares authorized as of January 31, 2015 and October 31, 2015; 122,281 and no shares issued and outstanding as of January 31, 2015 and October 31, 2015	0	543,940
Stockholders’ (deficit) equity:
Preferred stock, par value of $0.0001 per share— no and 20,000 shares authorized as of January 31, 2015 and October 31, 2015; no shares issued and outstanding as of January 31, 2015 and October 31, 2015	0	0
Class A and Class B common stock, par value of $0.0001 per share— 230,812 (Class A 1, Class B 230,811) and 2,250,000 (Class A 2,000,000, Class B 250,000) shares authorized as of January 31, 2015 and October 31, 2015; 36,465 (Class B 36,465) and 189,980 (Class A 28,750, Class B 161,230) shares issued and outstanding as of January 31, 2015 and October 31, 2015	19	4
Additional paid-in capital	1,094,976	41,749
Accumulated deficit	(511,041)	(341,583)
Total stockholders’ (deficit) equity	583,954	(299,830)
Total liabilities, convertible preferred stock, and stockholders’ (deficit) equity	$ 818,028	$ 361,819