Consolidated Balance Sheets - USD ($) $ in Thousands	Jan. 31, 2016	Jan. 31, 2015
Current assets:
Cash and cash equivalents	$ 604,742	$ 192,707
Accounts receivable, net of allowance of $210 and $944 as of January 31, 2015 and 2016	126,324	59,032
Inventory	20,649	21,605
Deferred commissions, current	15,703	9,431
Prepaid expenses and other current assets	20,652	11,195
Total current assets	788,070	293,970
Property and equipment, net	52,629	39,859
Intangible assets, net	6,980	8,284
Deferred income taxes, non-current	536	0
Other long-term assets	22,568	14,177
Total assets	870,783	356,290
Current liabilities:
Accounts payable	38,187	11,007
Accrued compensation and benefits	32,995	13,811
Accrued expenses and other liabilities	14,076	6,106
Deferred revenue, current	94,514	32,199
Liability related to early exercised stock options	4,760	6,485
Total current liabilities	184,532	69,608
Deferred revenue, non-current	121,690	41,470
Deferred income taxes, non-current	0	300
Other long-term liabilities	1,207	802
Total liabilities	307,429	112,180
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 2016, 122,281 and no shares issued and outstanding as of January 31, 2015 and 2016; aggregate liquidation preference of $551,858 as of January 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 2016; no shares issued and outstanding as of January 31, 2015 and 2016	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 2016; 36,465 (Class B 36,465) and 190,509 (Class A 28,769, Class B 161,740) shares issued and outstanding as of January 31, 2015 and 2016	19	4
Additional paid-in capital	1,118,670	41,749
Accumulated deficit	(555,335)	(341,583)
Total stockholders’ (deficit) equity	563,354	(299,830)
Total liabilities, convertible preferred stock, and stockholders’ (deficit) equity	$ 870,783	$ 356,290