Nutanix (NTNX) 10-Q 10 Mar 17 2017 Q2 Quarterly report Financial data

DOCUMENT AND ENTITY INFORMATION

DOCUMENT AND ENTITY INFORMATION - shares	6 Months Ended
	Jan. 31, 2017	Feb. 28, 2017
Entity Information [Line Items]
Entity Registrant Name	Nutanix, Inc.
Entity Central Index Key	1,618,732
Current Fiscal Year End Date	--07-31
Entity Filer Category	Non-accelerated Filer
Document Type	10-Q
Document Period End Date	Jan. 31, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q2
Amendment Flag	false
Common Class A
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		49,229,484
Common Class B
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		93,984,946

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jan. 31, 2017	Jul. 31, 2016
Current assets:
Cash and cash equivalents	$ 226,006	$ 99,209
Short-term investments	129,147	85,991
Accounts receivable—net	151,224	110,659
Deferred commissions—current	19,230	17,864
Prepaid expenses and other current assets	18,192	16,138
Total current assets	543,799	329,861
Property and equipment—net	51,944	42,218
Deferred commissions—non-current	25,712	19,029
Intangible assets—net	27,217	0
Goodwill	16,784	0
Other assets—non-current	5,261	7,978
Total assets	670,717	399,086
Current liabilities:
Accounts payable	65,231	52,111
Accrued compensation and benefits	36,645	24,547
Accrued expenses and other liabilities	6,404	5,537
Deferred revenue—current	186,255	130,569
Total current liabilities	294,535	212,764
Deferred revenue—non-current	234,361	165,896
Senior notes	0	73,260
Convertible preferred stock warrant liability	0	9,679
Early exercised stock options liability	1,509	2,320
Other liabilities—non-current	8,429	1,103
Total liabilities	538,834	465,022
Commitments and contingencies (Note 7)
Convertible preferred stock	0	310,379
Stockholders’ (deficit) equity:
Common stock	4	1
Additional paid-in capital	829,249	65,629
Accumulated other comprehensive loss	(170)	(12)
Accumulated deficit	(697,200)	(441,933)
Total stockholders’ (deficit) equity	131,883	(376,315)
Total liabilities, convertible preferred stock and stockholders’ (deficit) equity	$ 670,717	$ 399,086

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2017	Jan. 31, 2016	Jan. 31, 2017	Jan. 31, 2016
Revenue:
Product	$ 138,508	$ 81,229	$ 268,165	$ 151,625
Support and other services	43,687	21,468	80,839	38,828
Total revenue	182,195	102,697	349,004	190,453
Cost of revenue:
Product	58,403	29,977	110,613	57,634
Support and other services	18,443	7,959	35,995	15,381
Total cost of revenue	76,846	37,936	146,608	73,015
Gross profit	105,349	64,761	202,396	117,438
Operating expenses:
Sales and marketing	111,244	66,128	240,019	124,727
Research and development	70,914	26,024	146,195	49,881
General and administrative	15,481	7,840	44,853	15,215
Total operating expenses	197,639	99,992	431,067	189,823
Loss from operations	(92,290)	(35,231)	(228,671)	(72,385)
Other income (expense)—net	(421)	2,646	(26,133)	1,775
Loss before provision for income taxes	(92,711)	(32,585)	(254,804)	(70,610)
Provision for income taxes	501	620	577	1,140
Net loss	$ (93,212)	$ (33,205)	$ (255,381)	$ (71,750)
Net loss per share attributable to common stockholders—basic and diluted (in dollars per share)	$ (0.66)	$ (0.76)	$ (2.36)	$ (1.66)
Weighted-average shares used in computing net loss per share attributable to common stockholders—basic and diluted (in shares)	141,996,600	43,666,825	108,185,194	43,252,879

CONDENSED CONSOLIDATED STATEME4

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2017	Jan. 31, 2016	Jan. 31, 2017	Jan. 31, 2016
Statement of Comprehensive Income [Abstract]
Net loss	$ (93,212)	$ (33,205)	$ (255,381)	$ (71,750)
Other comprehensive loss—net of tax:
Change in unrealized loss on available-for-sale securities, net of tax	(150)	(26)	(158)	(1)
Total other comprehensive loss—net of tax	(150)	(26)	(158)	(1)
Comprehensive loss	$ (93,362)	$ (33,231)	$ (255,539)	$ (71,751)

CONDENSED CONSOLIDATED STATEME5

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jan. 31, 2017	Jan. 31, 2016
Cash flows from operating activities:
Net loss	$ (255,381)	$ (71,750)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	18,172	11,822
Stock-based compensation	143,335	10,336
Loss on debt extinguishment	3,320	0
Change in fair value of convertible preferred stock warrant liability	21,133	(1,904)
Other	929	(327)
Changes in operating assets and liabilities:
Accounts receivable—net	(39,730)	(13,374)
Deferred commission	(8,049)	(9,179)
Prepaid expenses and other assets	(2,707)	2,088
Accounts payable	11,342	(8,034)
Accrued compensation and benefits	11,811	1,484
Accrued expenses and other liabilities	1,594	(3,514)
Deferred revenue	118,143	81,209
Net cash (used in) provided by operating activities	23,912	(1,143)
Cash flows from investing activities:
Purchases of property and equipment	(24,616)	(20,021)
Purchases of investments	(117,550)	(31,546)
Maturities of investments	41,200	40,285
Sale of investments	32,640	0
Payments for business acquisitions, net of cash acquired	(184)	0
Net cash used in investing activities	(68,510)	(11,282)
Cash flows from financing activities:
Proceeds from initial public offering, net of underwriting discounts and commissions	254,455	0
Payments of offering costs, net	(1,609)	(2,659)
Proceeds from exercise of stock options, net of repurchases	2,180	1,978
Repayment of senior notes	(75,000)	0
Debt extinguishment costs	(1,580)	0
Payment of debt in conjunction with a business acquisition	(7,124)	0
Other	73	836
Net cash provided by financing activities	171,395	155
Net (decrease) increase in cash and cash equivalents	126,797	(12,270)
Cash and cash equivalents—beginning of period	99,209	67,879
Cash and cash equivalents—end of period	226,006	55,609
Supplemental disclosures of cash flow information:
Cash paid for income taxes	2,344	1,489
Cash paid for interest	1,271	0
Supplemental disclosures of non-cash investing and financing information:
Vesting of early exercised stock options	920	1,995
Purchases of property and equipment included in accounts payable	6,983	5,771
Offering costs included in accounts payable	51	803
Conversion of convertible preferred stock to common stock, net of issuance costs	310,379	0
Reclassification of convertible preferred stock warrant liability to additional paid-in capital	30,812	0
Issuance of common stock for business acquisitions	$ 27,063	$ 0

ORGANIZATION

ORGANIZATION	6 Months Ended
	Jan. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
ORGANIZATION	ORGANIZATION Organization and Description of Business —Nutanix, Inc. was incorporated in the state of Delaware in September 2009. Nutanix, Inc. is headquartered in San Jose, California, and together with its wholly-owned subsidiaries (collectively, the “Company”) has operations throughout North America, Europe, Asia-Pacific, Middle East, Latin America and Africa. The Company’s enterprise cloud platform converges traditional silos of server, virtualization and storage into one integrated solution and can also connect to public cloud services. The Company primarily sells its products and services to end-customers through distributors and resellers (collectively “Partners”). During the three months ended October 31, 2016, the Company completed two acquisitions, Calm.io Pte. Ltd. ("Calm") and PernixData, Inc. ("PernixData") (see Note 3). Initial Public Offering —In October 2016, the Company completed its initial public offering (“IPO”) of Class A common stock, in which it sold 17,100,500 shares, including 2,230,500 shares pursuant to the underwriters’ over-allotment option. The shares were sold at an IPO price of $16.00 per share for net proceeds of $254.5 million , after deducting underwriting discounts and commissions of $19.2 million . Additionally, offering costs incurred by the Company totaled $5.2 million . Immediately prior to the closing of the Company’s IPO, all outstanding shares of common stock were reclassified as Class B common stock, and all outstanding shares of its convertible preferred stock automatically converted into 76,319,511 shares of common stock on a one -to-one basis and then reclassified as shares of Class B common stock. Following the IPO, the Company has two classes of authorized common stock, Class A common stock, which entitles holders to one vote per share, and Class B common stock which entitles holders to 10 votes per share.

BASIS OF PRESENTATION AND SUMMA

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	6 Months Ended
	Jan. 31, 2017
Accounting Policies [Abstract]
BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Principles of Consolidation —The condensed consolidated financial statements, which include the accounts of Nutanix, Inc. and its wholly-owned subsidiaries including the acquisitions of Calm and PernixData, have been prepared in conformity with accounting principles generally accepted in the United States (“U.S. GAAP”). All intercompany accounts and transactions have been eliminated in consolidation. Use of Estimates —The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Such management estimates include, but are not limited to, the best estimate of selling prices for products and related support; determination of fair value of common stock and convertible preferred stock, fair value of stock options and convertible preferred stock warrant liability; accounting for income taxes, including the valuation reserve on deferred tax assets and uncertain tax positions; warranty liability; commissions expense; fair value of assets and liabilities acquired in business combinations; and contingencies and litigation. Management evaluates these estimates and assumptions on an ongoing basis using historical experience and other factors and makes adjustments when facts and circumstances dictate. As future events and their effects cannot be determined with precision, actual results could materially differ from those estimates and assumptions. Concentration Risk: Concentration of Revenue and Accounts Receivable —The Company sells its products primarily through Partners, including distributors and resellers, and occasionally directly to end-customers. For the three and six months ended January 31, 2016 and 2017, no end-customer accounted for 10% or more of total revenue. For each significant Partner, revenue as a percentage of total revenue and accounts receivable as a percentage of total accounts receivable, net are as follows: Revenue Accounts Receivable as of Three Months Ended Six Months Ended Customers 2016 2017 2016 2017 July 31, 2016 January 31, Partner A 13 % * 16 % 12 % * * Partner B 19 % 19 % 20 % 20 % 17 % 15 % Partner C 13 % 16 % 12 % 15 % 12 % * Partner D * * * * 23 % 16 % Partner E 12 % 11 % 12 % 10 % 11 % 13 % Partner F 19 % 13 % 18 % 12 % * * ___________________ * Less than 10% Business Combinations —The Company accounts for its acquisitions using the acquisition method. Goodwill is measured at the acquisition date as the excess of the purchase price over the fair value of the assets acquired and liabilities assumed. Significant estimates and assumptions are made by management to value such assets and liabilities. Although the Company believes that those estimates and assumptions are reasonable and appropriate, they are inherently uncertain and subject to refinement. Additional information related to the acquisition date fair value of acquired assets and assumed liabilities obtained during the measurement period, not to exceed one year, may result in changes to the recorded values of such assets and liabilities, resulting in an offsetting adjustment to the goodwill associated with the business acquired. Uncertain tax positions and tax-related valuation allowances are initially established in connection with a business combination as of the acquisition date. The Company continues to collect information and reevaluate these estimates and assumptions quarterly. The Company will record any adjustments to its preliminary estimates to goodwill provided that the Company is within the one year measurement period. Any contingent consideration payable is recognized at fair value at the acquisition date. Liability-classified contingent consideration is remeasured each reporting period with changes in fair value recognized in earnings until the contingent consideration is settled. Acquisition related costs incurred in connection with a business combination, other than those associated with the issuance of debt or equity securities, are expensed as incurred. Goodwill, Intangible Assets and Impairment Assessment— Goodwill represents the excess of the purchase price over the fair value of the assets acquired and liabilities assumed, if any, in a business combination, and is allocated to the Company's single reporting unit. The Company reviews its goodwill for impairment at least annually, or whenever events or changes in circumstances indicate that the carrying value of an asset may not be recoverable. The Company may elect to utilize a qualitative assessment to determine whether it is more likely than not that the fair value of its reporting unit is less than its carrying value. If, after assessing the qualitative factors, the Company determines that it is more likely than not that the fair value of its reporting unit is less than its carrying value, the two-step impairment analysis will be performed. In the first step, to identify a potential impairment, the Company compares the fair value of its reporting unit with its carrying amount. If the carrying value of the reporting unit exceeds its fair value, the second step would need to be performed. In the second step, the Company compares the implied fair value of the reporting unit with its carrying amount. Any excess of the reporting unit carrying value over the respective implied fair value is recognized as an impairment loss. Recently Adopted Accounting Pronouncement — In March 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-09, Stock Compensation, which is intended to simplify several aspects of the accounting for share-based payment award transactions. ASU 2016-09 (i) requires all income tax effects of awards to be recognized in the income statement when the awards vest or are settled, (ii) requires classification of excess tax benefits as an operating activity in the statement of cash flows rather than a financing activity, (iii) eliminates the requirement to defer recognition of an excess tax benefit until the benefit is realized through a reduction to taxes payable, (iv) modifies statutory withholding tax requirements and (v) provides for a policy election to account for forfeitures as they occur. The Company early adopted ASU 2016-09 during the three months ended October 31, 2016. As a result of the adoption of ASU 2016-09, the Company recorded excess tax benefits prospectively in its provision for income taxes. Upon adoption, the Company recognized the previously unrecognized foreign excess tax benefits, which resulted in a cumulative effect adjustment of $0.1 million that reduced its accumulated deficit and increased its foreign deferred tax assets, using a modified retrospective transition method. The previously unrecognized U.S. excess tax benefits were recorded as a deferred tax asset, which was fully offset by a valuation allowance resulting in no impact to the accumulated deficit. Additionally, the Company elected to account for forfeitures as they occur using a modified retrospective transition method, which requires the Company to record cumulative-effect adjustment to accumulated deficit, and determined that the cumulative impact was immaterial. The Company presents its excess tax benefits as a component of operating cash flows rather than financing cash flows on a prospective basis. Recently Issued and Not Yet Adopted Accounting Pronouncements —In January 2017, the FASB issued ASU No. 2017-01, Business Combinations (Topic 805) to clarify the definition of a business to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The guidance is effective for fiscal years beginning after December 15, 2017 including interim periods within those fiscal years. Early adoption is permitted under certain circumstances. The Company is currently evaluating the effect the adoption of this guidance will have on its consolidated financial statements. In January 2017, the FASB issued ASU 2017-04, Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. ASU 2017-04 removes Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. An impairment charge will now be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. ASU 2017-04 is effective for the Company beginning August 1, 2020, with early adoption permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company is currently evaluating the effect the adoption of this guidance will have on its consolidated financial statements. In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash. ASU 2016-18 will require the Company to present the change in the amounts described as restricted cash or restricted cash equivalents in the statement of cash flows. ASU 2016-18 is effective for the Company beginning August 1, 2018, with early adoption permitted. The Company does not believe that adoption of this ASU will have a material impact on its consolidated financial statements. In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory. ASU 2016-16 will require the Company to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. ASU 2016-16 is effective for the Company beginning August 1, 2018, with early adoption permitted. The Company is currently evaluating the effect the adoption of this guidance will have on its consolidated financial statements. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. This new standard will make eight targeted changes to how cash receipts and cash payments are presented and classified in the statement of cash flows. The new standard is effective for the Company beginning August 1, 2018. The new standard will require adoption on a retrospective basis unless it is impracticable to apply, in which case the Company would be required to apply the amendments prospectively as of the earliest date practicable. The Company is currently evaluating the effect the adoption of this guidance will have on its consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, Leases, which requires recognition of right-to-use lease assets and lease liabilities for all leases (with the exception of short-term leases) on the balance sheet of lessees. ASU 2016-02 is effective for the Company beginning August 1, 2019, including interim periods within those fiscal years, with early adoption permitted. This new standard requires a modified retrospective transition approach and provides certain optional transition relief. The Company is currently evaluating the effect the adoption of this guidance will have on its consolidated financial statements. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). The standard is a comprehensive new revenue recognition model that requires revenue to be recognized in a manner to depict the transfer of goods or services to a customer at an amount that reflects the consideration expected to be received in exchange for those goods or services. The FASB has issued several amendments to the standard, including clarifications on disclosure of prior-period performance obligations and remaining performance obligations. The guidance permits two methods of adoption: retrospectively to each prior reporting period presented (full retrospective method), or retrospectively with the cumulative effect of initially applying the guidance recognized at the date of initial application (the cumulative catch-up transition method). The new standard will be effective for the Company beginning August 1, 2018, and adoption as of the original effective date of August 1, 2017 is permitted. The Company is currently evaluating early adoption of the standard, as well as the method of adoption. The Company's ability to early adopt is dependent on system readiness, and the completion of its analysis of information necessary to restate prior period financial statements if the full retrospective method is utilized. While the Company is continuing to assess all potential impacts of the standard, it currently believes the most significant impact relates to the timing of revenue recognition for certain software licenses sold with post contract support ("PCS") for which it does not have vendor-specific objective evidence of fair value ("VSOE") under current guidance. Under the new standard the requirement to have VSOE for undelivered elements is eliminated and the Company will recognize revenue for such software licenses upon transfer of control to its customers.

BUSINESS COMBINATIONS

BUSINESS COMBINATIONS	6 Months Ended
	Jan. 31, 2017
Business Combinations [Abstract]
BUSINESS COMBINATIONS	BUSINESS COMBINATIONS Calm Acquisition On August 22, 2016, the Company completed the acquisition of all outstanding shares of Calm, a company based in Singapore which specializes in container and DevOps automation, for an aggregate purchase price of $7.7 million , net of cash acquired (the “Calm Acquisition”) . Consideration consisted of 528,517 shares of the Company’s common stock and $1.4 million of cash. The preliminary purchase price allocation includes $ 4.8 million of goodwill and $ 4.0 million of identifiable intangible assets, which primarily consist of developed technology, with an expected useful life of approximately 4.8 years . Goodwill represents the excess of the purchase price over the fair value of the net tangible and intangible assets acquired, and is not expected to be deductible for income tax purposes. The goodwill in this transaction is primarily attributable to the acquired workforce and expected operating synergies. The Company incurred approximately $0.6 million of acquisition costs related to the Calm Acquisition. The results of operations of Calm are included in the results of the Company beginning on the date the acquisition was completed. Actual and pro forma results of operations have not been presented as the total amounts of revenue and net income are not material to the Company's consolidated results for the six months ended January 31, 2016 and 2017, respectively. PernixData Acquisition On September 6, 2016, the Company completed the acquisition of PernixData, a company based in the U.S., which specializes in scale-out data acceleration and analytics, for an aggregate purchase price of $23.0 million (the "PernixData Acquisition"). Total consideration consisted of 1,711,019 shares of the Company’s common stock and contingent consideration. Total potential contingent payments amount to $19.0 million , which may be payable over the next three years upon the achievement of certain operating milestones. Up to $7.5 million of the contingent payments are deemed to be part of the purchase price, which may be limited based on certain closing conditions, including PernixData's working capital upon completion of the acquisition. Up to $11.5 million of the payments also require future services to be provided to the Company by the related employees and will be recorded as compensation expense over the service period. The fair value of the contingent consideration considered to be part of the purchase price was $2.4 million as of the acquisition date, and is net of expected limitations of approximately $1.8 million due to closing conditions. The Company incurred approximately $0.7 million of acquisition costs related to the PernixData Acquisition. As of the date of the PernixData Acquisition, the preliminary purchase price allocation was as follows (in thousands): Cash and cash equivalents $ 1,051 Accounts receivable 718 Goodwill 11,965 Intangible assets 24,270 Other assets 667 Deferred revenue (6,007 ) Debt (7,124 ) Other liabilities (2,533 ) Total $ 23,007 Goodwill represents the excess of the purchase price over the fair value of the net tangible and intangible assets acquired and is not expected to be deductible for income tax purposes. The goodwill in this transaction is primarily attributable to the acquired workforce and expected operating synergies. The acquired identifiable intangible assets consist of (dollars in thousands): Amount Estimated Life (in years) In-process R&D $ 16,100 — Developed technology 3,570 5 Customer relationships 4,600 6 $ 24,270 In-process R&D will be tested for impairment at least annually, or whenever events or changes in circumstances indicate that the carrying value of the asset may not be recoverable. Once the in-process R&D is completed, the Company will determine a useful life of the asset resulting from the completed in-process R&D and will begin amortizing the asset over its estimated useful life. Once completed, the useful life of the in-process R&D is expected to be approximately 5 to 7 years. Unaudited Pro Forma Combined Consolidated Financial Information —The following unaudited pro forma combined consolidated financial information summarizes the combined results of operations of the Company and PernixData as though the PernixData Acquisition occurred on August 1, 2015. The unaudited pro forma combined consolidated financial information for all periods presented also included the business combination accounting effects resulting from this acquisition, including amortization charges from acquired intangible assets. The results of operations of PernixData are included in the results of the Company beginning on the date of the acquisition, and are not material. The unaudited pro forma combined consolidated financial information is as follows (in thousands, except per share data): Six Months Ended 2016 2017 Revenue $ 194,883 $ 349,970 Net loss (87,864 ) (256,293 ) Basic and diluted net loss per share (1.95 ) (2.36 )

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	6 Months Ended
	Jan. 31, 2017
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS	FAIR VALUE MEASUREMENTS The fair value of the Company’s financial assets and liabilities measured on a recurring basis is as follows (in thousands): As of July 31, 2016 Level I Level II Level III Total Financial Assets: Cash equivalents: Money market funds $ 47,305 $ — $ — $ 47,305 Commercial paper — 4,999 — 4,999 Short-term investments: Corporate bonds — 64,360 — 64,360 Commercial paper — 21,631 — 21,631 Total measured at fair value 47,305 90,990 — 138,295 Cash 46,905 Total cash, cash equivalents and short-term investments $ 185,200 Financial Liabilities: Convertible preferred stock warrant liability $ — $ — $ 9,679 $ 9,679 As of January 31, 2017 Level I Level II Level III Total Financial Assets: Cash equivalents: Money market funds $ 115,806 $ — $ — $ 115,806 Commercial paper — 44,364 — 44,364 Short-term investments: Corporate bonds — 95,228 — 95,228 Commercial paper — 23,910 — 23,910 U.S. government securities — 10,009 — 10,009 Total measured at fair value $ 115,806 $ 173,511 $ — 289,317 Cash 65,836 Total cash, cash equivalents and short-term investments $ 355,153 Financial Liabilities: Contingent consideration $ — $ — $ 2,843 $ 2,843 A summary of the changes in the fair value of the Company’s convertible preferred stock warrant liability is as follows (in thousands): Six Months Ended 2016 2017 Convertible preferred stock warrant liability—beginning balance $ 11,683 $ 9,679 Change in fair value* (1,904 ) 21,133 Reclassification of unexercised warrants to additional paid-in capital upon the IPO — (30,812 ) Convertible preferred stock warrant liability—ending balance $ 9,779 $ — ______________ * Recorded in the consolidated statements of operations within other expense—net. A summary of the changes in the fair value of the Company’s contingent consideration is as follows (in thousands): Six Months Ended January 31, 2017 Contingent consideration—beginning balance $ — Assumed in the PernixData Acquisition 2,371 Change in fair value* 472 Contingent consideration—ending balance $ 2,843 ______________ * Recorded in the consolidated statements of operations within general and administrative expenses The Company measures the fair value of its Level 3 contingent consideration liability using the Monte Carlo simulation on projected future payments.

BALANCE SHEET COMPONENTS

BALANCE SHEET COMPONENTS	6 Months Ended
	Jan. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
BALANCE SHEET COMPONENTS	BALANCE SHEET COMPONENTS Short-Term Investments —The amortized cost of the Company’s short-term investments approximate their fair value. As of July 31, 2016 and January 31, 2017 , unrealized gains or losses from the Company’s short-term investments were immaterial and there were no securities in an unrealized loss position for more than 12 months. The following table summarizes the estimated fair value of the Company’s investments in marketable debt securities, by the contractual maturity date (in thousands): As of January 31, 2017 Due within 1 year $ 87,169 Due after 1 year through 3 years 41,978 Total $ 129,147 Property and Equipment—Net —Property and equipment, net consists of the following (in thousands): Estimated (In months) As of July 31, 2016 January 31, Computer, production, engineering and other equipment 36 $ 54,161 $ 70,219 Demonstration units 12 33,184 40,962 Leasehold improvements * 6,619 8,213 Furniture and fixtures 60 3,641 4,001 Total property and equipment—gross 97,605 123,395 Less accumulated depreciation and amortization (55,387 ) (71,451 ) Total property and equipment—net $ 42,218 $ 51,944 ______________ * Leasehold improvements are amortized over the shorter of the estimated useful lives of the improvements or the remaining lease term. Depreciation and amortization expense related to the Company's property and equipment was $6.3 million and $11.8 million , respectively, for the three and six months ended January 31, 2016. Depreciation and amortization expense related to the Company's property and equipment was $9.0 million and $17.2 million , respectively, for the three and six months ended January 31, 2017. Intangible Assets—Net —Intangible assets, net consists of the following (in thousands): As of January 31, 2017 Indefinite-lived intangible asset: In-process R&D $ 16,100 Finite-lived intangible assets: Developed technology 7,300 Customer relationships 4,830 Total finite-lived intangible assets, gross 12,130 Total intangible assets, gross 28,230 Less: Accumulated amortization of developed technology (598 ) Accumulated amortization of customer relationships (415 ) Total accumulated amortization (1,013 ) Intangible assets, net $ 27,217 Changes in the net book value of intangible assets are as follows (in thousands): Six Months Ended Intangible assets, net—beginning balance $ — Acquired in the Calm Acquisition 3,960 Acquired in the PernixData Acquisition 24,270 Amortization of intangible assets * (1,013 ) Intangible assets, net—ending balance $ 27,217 ______________ * Represents amortization expense of finite-lived intangible assets recorded in the condensed consolidated statement of operations during the period within product cost of revenue and sales and marketing expenses. Estimated future amortization expense of finite-lived intangible assets is as follows: Year Ending July 31: (In thousands) 2017 (remaining six months) $ 1,215 2018 2,220 2019 2,201 2020 2,201 2021 2,201 Thereafter 1,079 Total $ 11,117 Accrued Compensation and Benefits —Accrued compensation and benefits consists of the following (in thousands): As of July 31, 2016 January 31, Accrued commissions $ 14,203 $ 10,270 Accrued vacation 3,490 4,513 Contributions to ESPP withheld — 13,337 Accrued bonus 3,592 3,486 Other 3,262 5,039 Total accrued compensation and benefits $ 24,547 $ 36,645 Accrued Expenses and Other Liabilities —Accrued expenses and other liabilities consists of the following (in thousands): As of July 31, 2016 January 31, Accrued professional services $ 3,585 $ 3,184 Income taxes payable 1,417 1,812 Other 535 1,408 Total accrued expenses and other liabilities $ 5,537 $ 6,404

DEBT

DEBT	6 Months Ended
	Jan. 31, 2017
Debt Disclosure [Abstract]
DEBT	DEBT Senior Notes —In April 2016, the Company issued an aggregate principal amount of $75.0 million of senior notes due on April 15, 2019 (the “Senior Notes”) to a lender. The Senior Notes contained a guaranteed minimum return to the holder of the Senior Notes (the “Guaranteed Minimum Return”). In September 2016, the Company fully repaid all outstanding principal balance of the Senior Notes and incurred approximately $3.3 million of loss on debt extinguishment, which consisted of $1.7 million of unamortized debt issuance costs and $1.6 million of debt extinguishment costs primarily related to the Guaranteed Minimum Return.

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	6 Months Ended
	Jan. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Operating Leases —The Company has commitments for future payments related to its office facility leases and other contractual obligations. The Company leases its office facilities under non-cancelable operating lease agreements expiring through the year ending 2021. Certain of these lease agreements have free or escalating rent payments. The Company recognizes rent expense under such agreements on a straight-line basis over the lease term, with any free or escalating rent payments amortized as a reduction or addition of rent expense over the lease term. Future minimum payments due under operating leases as of January 31, 2017 are as follows: Year Ending July 31: (In thousands) 2017 (remaining six months) $ 6,086 2018 10,847 2019 10,820 2020 10,402 2021 7,556 Thereafter 2,929 Total $ 48,640 Rent expense incurred under operating leases was $1.5 million and $2.9 million for the three and six months ended January 31, 2016 , respectively. Rent expense incurred under operating leases was $2.9 million and $5.8 million for the three and six months ended January 31, 2017 , respectively. Purchase Commitments —In the normal course of business, the Company makes commitments with its third-party hardware contract manufacturers to manufacture its inventories and non-standard components based on its forecasts. These commitments consist of obligations for on-hand inventories and non-cancellable purchase orders for non-standard components. The Company records a charge for firm, non-cancellable and unconditional purchase commitments with its third-party hardware contract manufacturers for non-standard components when and if quantities exceed its future demand forecasts through a charge to cost of product sales. As of January 31, 2017 , the Company had approximately $20.7 million of non-cancellable purchase commitments pertaining to its normal operations, and approximately $18.6 million of other purchase obligations with its contract manufacturers. Guarantees — The Company has entered into agreements with some of its Partners and customers that contain indemnification provisions in the event of claims alleging that the Company’s products infringe the intellectual property rights of a third party. The scope of such indemnification varies, and may include, in certain cases, the ability to cure the indemnification by modifying or replacing the product at the Company’s own expense, requiring the return and refund of the infringing product, procuring the right for the partner and/or customer to continue to use or distribute the product, as applicable, and/or defending the partner or customer against and paying any damages from third party actions based upon claims of infringement. Other guarantees or indemnification arrangements include guarantees of product and service performance. The fair value of liabilities related to indemnifications and guarantee provisions are not material and have not had any material impact on the consolidated financial statements to date. Litigation — From time to time, the Company may become involved in various litigation and administrative proceedings relating to claims arising from its operations in the normal course of business. Management is not currently aware of any matters that may have a material adverse impact on the Company’s business, financial position, results of operations or cash flows.

CONVERTIBLE PREFERRED STOCK WAR

CONVERTIBLE PREFERRED STOCK WARRANTS	6 Months Ended
	Jan. 31, 2017
Other Liabilities Disclosure [Abstract]
CONVERTIBLE PREFERRED STOCK WARRANTS	CONVERTIBLE PREFERRED STOCK WARRANTS The Convertible Preferred Stock Warrants outstanding prior to the IPO were as follows (in thousands, except for share and per share amounts): Fair Value as of Class of Shares Issuance Date Contractual Term Number of Exercise July 31, 2016 IPO Date(1) Series A warrants December 21, 2009 10 years 683,644 $ 0.234 $ 8,259 $ 25,883 Series A warrants May 10, 2010 10 years 85,450 0.234 1,032 3,235 Series D warrants November 26, 2013 10 years 10,000 7.289 77 308 Series D warrants December 12, 2013 7 years 45,000 7.289 311 1,386 824,094 $ 9,679 (2) $ 30,812 ______________ (1) Immediately prior to the closing of the Company’s IPO. (2) Reflected in the consolidated balance sheets as convertible preferred stock warrant liability. Immediately prior to the closing of the Company’s IPO, all outstanding convertible preferred stock warrants automatically converted to common stock warrants, and then were reclassified as Class B common stock warrants. As a result of the automatic conversion of the convertible preferred stock warrants to Class B common stock warrants, the Company revalued the convertible preferred stock warrants as of the completion of the IPO and reclassified the outstanding preferred stock warrant liability balance to additional paid-in capital with no further remeasurements as the common stock warrants are now deemed permanent equity. During the three and six months ended January 31, 2017 , a total of 717,824 and 772,824 Class B common stock warrants, respectively, were exercised. As a result, during the three and six months ended January 31, 2017, the Company issued a total of 711,935 and 758,464 shares of Class B common stock, respectively, as the contracts allow a net share settlement for Class B common stock. As of January 31, 2017 , there were 51,270 Class B common stock warrants outstanding.

CONVERTIBLE PREFERRED STOCK

CONVERTIBLE PREFERRED STOCK	6 Months Ended
	Jan. 31, 2017
Temporary Equity Disclosure [Abstract]
CONVERTIBLE PREFERRED STOCK	CONVERTIBLE PREFERRED STOCK Series A Convertible Preferred Stock, Series B Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock and Series E Convertible Preferred Stock (collectively the “Convertible Preferred Stock”) outstanding consisted of the following as of July 31, 2016 and as of immediately prior to the automatic conversion of the Convertible Preferred Stock into Class B common stock: Shares Shares Aggregate (In thousands) Series A 28,165,300 27,396,198 $ 15,494 Series B 16,558,441 16,558,441 25,250 Series C 7,683,710 7,683,710 33,000 Series D 13,912,438 13,857,438 151,500 Series E 11,943,420 10,823,724 145,000 78,263,309 76,319,511 $ 370,244 Immediately prior to the closing of the Company’s IPO, all shares of the Company’s then-outstanding Convertible Preferred Stock, as shown in the table above, automatically converted on a one -for-one basis into an aggregate of 76,319,511 shares of common stock, which were then reclassified into Class B common stock.

STOCKHOLDERS_ EQUITY

STOCKHOLDERS’ EQUITY	6 Months Ended
	Jan. 31, 2017
Equity [Abstract]
STOCKHOLDERS’ EQUITY	STOCKHOLDERS’ EQUITY Preferred Stock Immediately prior to the closing of the Company's IPO, the Company filed an Amended and Restated Certificate of Incorporation, which authorized the issuance of undesignated preferred stock with rights and preferences, including voting rights, designated from time to time by the Company's Board of Directors (the "Board"). As of January 31, 2017 , there were 200,000,000 shares of preferred stock authorized with a par value of $0.000025 and no shares of preferred stock issued and outstanding. Common Stock In connection with the IPO, the Company established two classes of authorized common stock, Class A common stock and Class B common stock. All shares of common stock outstanding immediately prior to the IPO, including shares of common stock issued upon the conversion of the Convertible Preferred Stock, were converted into an equivalent number of shares of Class B common stock. As of January 31, 2017 , the Company had 1,000,000,000 shares of Class A common stock authorized with a par value of $0.000025 per share and 200,000,000 shares of Class B common stock authorized with a par value of $0.000025 per share. As of January 31, 2017 , 33,500,377 shares of Class A common stock were issued and outstanding and 109,713,179 shares of Class B common stock were issued and outstanding. Holders of Class A common stock are entitled to one vote for each share of Class A common stock held on all matters submitted to a vote of stockholders and holders of Class B common stock are entitled to ten votes for each share of Class B common stock held on all matters submitted to a vote of stockholders. Except with respect to voting, the rights of the holders of Class A and Class B common stock are identical. Shares of Class B common stock are voluntarily convertible into shares of Class A common stock at the option of the holder and generally automatically convert into shares of our Class A common stock upon a transfer.

EQUITY AWARD PLANS

EQUITY AWARD PLANS	6 Months Ended
	Jan. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
EQUITY AWARD PLANS	EQUITY AWARD PLANS Stock Plans —In June 2010, the Company adopted the 2010 Stock Plan (“2010 Plan”), and in December 2011, the Company adopted the 2011 Stock Plan (“2011 Plan”). In December 2015, the Board adopted the 2016 Equity Incentive Plan (“2016 Plan” and together with the 2010 Plan and 2011 Plan, the “Stock Plans”), which was amended in September 2016. The Company’s stockholders approved the 2016 Plan in March 2016 and it became effective in connection with the Company’s IPO. As a result, upon the IPO, the Company ceased granting additional stock awards under the 2010 Plan and 2011 Plan and the 2010 Plan and 2011 Plan terminated. Any outstanding stock awards under the 2010 Plan and 2011 Plan will remain outstanding, subject to the terms of the applicable plan and award agreements, until such shares are issued under those stock awards, by exercise of stock options or settlement of RSUs, or until those stock awards become vested or expired by their terms. Under the 2016 Plan, the Company may grant incentive stock options (“ISO”), non-statutory stock options (“NSO”), restricted stock (“RS”), restricted stock units (“RSU”) and stock appreciation rights (“SAR”) to employees, directors and consultants. The Company has initially reserved 22,400,000 shares of the Company’s Class A common stock for issuance under the 2016 Plan. The number of shares of Class A common stock available for issuance under the 2016 Plan will also include an annual increase on the first day of each fiscal year beginning in fiscal year 2018, equal to the lesser of: 18,000,000 shares, 5% of the outstanding shares of classes of common stock as of the last day of the Company’s immediately preceding fiscal year, or such other amount as may be determined by the Board. In addition, up to a maximum of 38,667,284 shares of Class B common stock returned to the 2010 Plan and 2011 Plan as the result of expiration or termination of awards after the IPO will also become available for issuance under the 2016 Plan . As of January 31, 2017 , the Company had reserved a total of 81,873,371 shares for the issuance of equity awards under the Stock Plans, of which 18,206,697 shares were still available for grant. Restricted Stock Units Performance RSUs . The Company grants RSUs that contain both service and performance conditions to its executives and employees. Vesting of the Performance RSUs is subject to continuous service with the Company and satisfaction of certain liquidity events of the Company, including the expiration of a lock-up period established in connection with the IPO, or both certain liquidity events and specified performance targets (collectively, the “Performance RSUs”). While the Company recognizes cumulative stock-based compensation expense for the portion of the awards for which the service condition has been satisfied when it is probable that the performance conditions will be met, vesting and settlement of the Performance RSUs are subject to the performance conditions actually being met. During the three months ended October 31, 2016, the Company began to recognize Performance RSUs with liquidity event performance conditions as the satisfaction of the performance conditions for vesting became probable. The Company’s summary of Performance RSUs activity under the Stock Plans is as follows: Number of Grant Date Fair Value per Share Outstanding—July 31, 2016 12,265,369 $ 13.23 Granted 8,020,980 21.98 Released (4,375 ) 14.80 Canceled/forfeited (410,208 ) 14.82 Outstanding—January 31, 2017 19,871,766 16.74 Offer to Exchange Stock Options for RSUs (the “Tender Offer”). In July 2016, the Company approved a tender offer stock option exchange program under which outstanding employee stock options with exercise prices of $8.41 or greater per share could be exchanged for a specified number of Performance RSUs based on a predetermined exchange ratio granted with a new vesting period. As a result of the Tender Offer, on August 16, 2016, stock options to purchase 1,361,317 common shares were cancelled and, in exchange, the Company granted 911,489 Performance RSUs to eligible employees. The Tender Offer resulted in a total incremental stock-based compensation expense of approximately $3.4 million . Employee Stock Purchase Plan —In December 2015, the Board adopted the 2016 Employee Stock Purchase Plan, which was subsequently amended in January 2016 and September 2016 and approved by the Company’s stockholders in March 2016 (the “2016 ESPP”). The 2016 ESPP became effective in connection with the Company’s IPO. A total of 3,800,000 shares of Class A common stock were initially reserved for issuance under the 2016 ESPP. The number of shares of Class A common stock available for sale under the 2016 ESPP will also include an annual increase on the first day of each fiscal year beginning in fiscal 2018, equal to the lesser of: 3,800,000 shares, 1% of the outstanding shares of classes of common stock as of the last day of the Company’s immediately preceding fiscal year, or such other amount as may be determined by the Board. The 2016 ESPP allows eligible employees to purchase shares of the Company’s Class A common stock at a discount through payroll deductions of up to 15% of eligible compensation, subject to caps of $25,000 in any calendar year and 1,000 shares on any purchase date. The 2016 ESPP provides for 12 -month offering periods generally beginning March and September of each year, and each offering period consists of two six-month purchase periods. The initial offering period began in September 2016 and will end in September 2017. On each purchase date, participating employees will purchase Class A common stock at a price per share equal to 85% of the lesser of the fair market value of the Company’s Class A common stock on (i) the first trading day of the applicable offering period and (2) the last trading day of each purchase period in the applicable offering period. If the stock price of the Company's Class A common stock on any purchase date in an offering period is lower than the stock price on the enrollment date of that offering period, the offering period will immediately reset after the purchase of shares on such purchase date and automatically roll into a new offering period. For the first offering period, which began on September 30, 2016, the fair market value of the common stock used for the first offering period was $16 , the IPO price of the Company’s Class A common stock. The Company uses the Black-Scholes option-pricing model to determine the fair value of shares purchased under the 2016 ESPP with the following weighted average assumptions on the date of the grant (on October 11, 2016): Six Months Ended Expected term (in years) 0.75 Risk-free interest rate 0.6 % Volatility 50.6 % Dividend yield — % Stock-Based Compensation —Total stock-based compensation expense recognized for stock awards in the consolidated statements of operations is as follows (in thousands): Three Months Ended Six Months Ended 2016 2017 2016 2017 Cost of revenue: Product $ 104 $ 848 $ 213 $ 1,814 Support and other services 241 2,389 534 5,739 Sales and marketing 1,964 15,528 4,082 49,419 Research and development 1,612 28,759 3,241 62,785 General and administrative 1,029 5,083 2,266 23,578 Total stock-based compensation expense $ 4,950 $ 52,607 $ 10,336 $ 143,335 Total stock-based compensation expense recognized for stock awards in the consolidated statements of operations by type of awards is as follows (in thousands): Three Months Ended Six Months Ended 2016 2017 2016 2017 RSUs * $ — $ 36,677 $ — $ 119,008 Stock options * 4,950 5,121 10,336 11,013 ESPP — 10,809 — 13,314 Total stock-based compensation expense $ 4,950 $ 52,607 $ 10,336 $ 143,335 _____________ * Includes stock-compensation expense related to stock awards with performance conditions, which vesting was deemed probable during the six months ended January 31, 2017 . As of January 31, 2017 , unrecognized stock-based compensation expense related to the outstanding stock awards was approximately $272.6 million and is expected to be recognized over a weighted-average period of approximately 1.9 years.

INCOME TAXES

INCOME TAXES	6 Months Ended
	Jan. 31, 2017
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES During the six months ended January 31, 2017 , the income tax provision of $0.6 million primarily consisted of foreign taxes on the Company's international operations and U.S. state income taxes, offset by the partial release of $1.5 million of the U.S. valuation allowance in connection with the PernixData Acquisition and tax benefit related to the early adoption of ASU 2016-09. The net deferred tax liability recorded in connection with the PernixData Acquisition provided an additional source of taxable income to support the realizability of the pre-existing deferred tax assets and as a result, the Company released a portion of the U.S. valuation allowance. During the three months ended January 31, 2017 , the income tax provision of $0.5 million primarily consisted of foreign taxes on our international operations and state income taxes in the U.S. During the three and six months ended January 31, 2016 , the income tax provision of $0.6 million and $1.1 million , respectively, primarily consisted of foreign taxes on our international operations and state income taxes in the U.S.

NET LOSS PER SHARE

NET LOSS PER SHARE	6 Months Ended
	Jan. 31, 2017
Earnings Per Share [Abstract]
NET LOSS PER SHARE	NET LOSS PER SHARE The computation of basic and diluted net loss per share is as follows (in thousands, except share and per share data): Three Months Ended Six Months Ended 2016 2017 2016 2017 Numerator: Net loss $ (33,205 ) $ (93,212 ) $ (71,750 ) $ (255,381 ) Denominator: Weighted-average shares—basic and diluted 43,666,825 141,996,600 43,252,879 108,185,194 Net loss per share attributable to common stockholders—basic and diluted $ (0.76 ) $ (0.66 ) $ (1.66 ) $ (2.36 ) The potential shares of common stock that were excluded from the computation of diluted net loss per share attributable to common stockholders for the periods presented because including them would have been anti-dilutive are as follows: Three and Six Months Ended 2016 2017 Stock awards 34,306,230 44,813,334 Common stock subject to repurchase 1,504,001 551,750 Common stock warrants — 51,270 Convertible preferred stock 76,319,511 — Convertible preferred stock warrants 824,094 — Total 112,953,836 45,416,354

SEGMENT INFORMATION

SEGMENT INFORMATION	6 Months Ended
	Jan. 31, 2017
Segment Reporting [Abstract]
SEGMENT INFORMATION	SEGMENT INFORMATION The following table sets forth revenue by geographic area based on bill-to location (in thousands): Three Months Ended Six Months Ended 2016 2017 2016 2017 U.S. $ 61,720 $ 102,173 $ 118,448 $ 205,044 Europe, the Middle East and Africa 20,982 33,272 37,343 57,520 Asia-Pacific 13,681 37,382 24,835 66,290 Other Americas 6,314 9,368 9,827 20,150 Total revenue $ 102,697 $ 182,195 $ 190,453 $ 349,004 As of July 31, 2016 and January 31, 2017 , $30.0 million and $58.0 million , respectively, of the Company’s long-lived assets, net were located in the U.S.

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS	6 Months Ended
	Jan. 31, 2017
Related Party Transactions [Abstract]
Related Party Transactions	RELATED PARTY TRANSACTIONS The Company enters into various transactions with its related parties in the normal course of business. During the three months ended January 31, 2016 and 2017 , the Company’s purchases of goods or services from related parties totaled $0.3 million and $0.5 million , respectively. During the six months ended January 31, 2016 and 2017 , the Company’s purchases of goods or services from related parties totaled $0.7 million and $0.7 million , respectively. Amounts payable to related parties as of July 31, 2016 and January 31, 2017 were immaterial. Revenue from related parties for the three months ended January 31, 2016 and 2017 were immaterial. Revenue from related parties for the six months ended January 31, 2016 and 2017 were $0.2 million and $0.1 million , respectively. The Company did not have any receivables outstanding from related parties as of July 31, 2016 and January 31, 2017 , respectively. In connection with the PernixData Acquisition (see Note 3), entities affiliated with Lightspeed Venture Partners, which owned approximately 36.7% of the Company’s outstanding Convertible Preferred Stock as of July 31, 2016, owned approximately 26.4% of the outstanding capital stock of PernixData immediately prior to the completion of the PernixData Acquisition. These entities received 625,478 shares of the Company’s common stock in the PernixData Acquisition, as well as the right to receive up to approximately $2.7 million in cash in the event the contingent consideration becomes payable. Two members of the Board are affiliated with Lightspeed Venture Partners.

BASIS OF PRESENTATION AND SUM21

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	6 Months Ended
	Jan. 31, 2017
Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation —The condensed consolidated financial statements, which include the accounts of Nutanix, Inc. and its wholly-owned subsidiaries including the acquisitions of Calm and PernixData, have been prepared in conformity with accounting principles generally accepted in the United States (“U.S. GAAP”). All intercompany accounts and transactions have been eliminated in consolidation.
Use of Estimates	Use of Estimates —The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Such management estimates include, but are not limited to, the best estimate of selling prices for products and related support; determination of fair value of common stock and convertible preferred stock, fair value of stock options and convertible preferred stock warrant liability; accounting for income taxes, including the valuation reserve on deferred tax assets and uncertain tax positions; warranty liability; commissions expense; fair value of assets and liabilities acquired in business combinations; and contingencies and litigation. Management evaluates these estimates and assumptions on an ongoing basis using historical experience and other factors and makes adjustments when facts and circumstances dictate. As future events and their effects cannot be determined with precision, actual results could materially differ from those estimates and assumptions.
Concentration Risk	Concentration Risk: Concentration of Revenue and Accounts Receivable —The Company sells its products primarily through Partners, including distributors and resellers, and occasionally directly to end-customers.
Business Combination	Business Combinations —The Company accounts for its acquisitions using the acquisition method. Goodwill is measured at the acquisition date as the excess of the purchase price over the fair value of the assets acquired and liabilities assumed. Significant estimates and assumptions are made by management to value such assets and liabilities. Although the Company believes that those estimates and assumptions are reasonable and appropriate, they are inherently uncertain and subject to refinement. Additional information related to the acquisition date fair value of acquired assets and assumed liabilities obtained during the measurement period, not to exceed one year, may result in changes to the recorded values of such assets and liabilities, resulting in an offsetting adjustment to the goodwill associated with the business acquired. Uncertain tax positions and tax-related valuation allowances are initially established in connection with a business combination as of the acquisition date. The Company continues to collect information and reevaluate these estimates and assumptions quarterly. The Company will record any adjustments to its preliminary estimates to goodwill provided that the Company is within the one year measurement period. Any contingent consideration payable is recognized at fair value at the acquisition date. Liability-classified contingent consideration is remeasured each reporting period with changes in fair value recognized in earnings until the contingent consideration is settled. Acquisition related costs incurred in connection with a business combination, other than those associated with the issuance of debt or equity securities, are expensed as incurred.
Goodwill and Intangible Asset Assessment	Goodwill, Intangible Assets and Impairment Assessment— Goodwill represents the excess of the purchase price over the fair value of the assets acquired and liabilities assumed, if any, in a business combination, and is allocated to the Company's single reporting unit. The Company reviews its goodwill for impairment at least annually, or whenever events or changes in circumstances indicate that the carrying value of an asset may not be recoverable. The Company may elect to utilize a qualitative assessment to determine whether it is more likely than not that the fair value of its reporting unit is less than its carrying value. If, after assessing the qualitative factors, the Company determines that it is more likely than not that the fair value of its reporting unit is less than its carrying value, the two-step impairment analysis will be performed. In the first step, to identify a potential impairment, the Company compares the fair value of its reporting unit with its carrying amount. If the carrying value of the reporting unit exceeds its fair value, the second step would need to be performed. In the second step, the Company compares the implied fair value of the reporting unit with its carrying amount. Any excess of the reporting unit carrying value over the respective implied fair value is recognized as an impairment loss.
Recently Issued and Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncement — In March 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-09, Stock Compensation, which is intended to simplify several aspects of the accounting for share-based payment award transactions. ASU 2016-09 (i) requires all income tax effects of awards to be recognized in the income statement when the awards vest or are settled, (ii) requires classification of excess tax benefits as an operating activity in the statement of cash flows rather than a financing activity, (iii) eliminates the requirement to defer recognition of an excess tax benefit until the benefit is realized through a reduction to taxes payable, (iv) modifies statutory withholding tax requirements and (v) provides for a policy election to account for forfeitures as they occur. The Company early adopted ASU 2016-09 during the three months ended October 31, 2016. As a result of the adoption of ASU 2016-09, the Company recorded excess tax benefits prospectively in its provision for income taxes. Upon adoption, the Company recognized the previously unrecognized foreign excess tax benefits, which resulted in a cumulative effect adjustment of $0.1 million that reduced its accumulated deficit and increased its foreign deferred tax assets, using a modified retrospective transition method. The previously unrecognized U.S. excess tax benefits were recorded as a deferred tax asset, which was fully offset by a valuation allowance resulting in no impact to the accumulated deficit. Additionally, the Company elected to account for forfeitures as they occur using a modified retrospective transition method, which requires the Company to record cumulative-effect adjustment to accumulated deficit, and determined that the cumulative impact was immaterial. The Company presents its excess tax benefits as a component of operating cash flows rather than financing cash flows on a prospective basis. Recently Issued and Not Yet Adopted Accounting Pronouncements —In January 2017, the FASB issued ASU No. 2017-01, Business Combinations (Topic 805) to clarify the definition of a business to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The guidance is effective for fiscal years beginning after December 15, 2017 including interim periods within those fiscal years. Early adoption is permitted under certain circumstances. The Company is currently evaluating the effect the adoption of this guidance will have on its consolidated financial statements. In January 2017, the FASB issued ASU 2017-04, Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. ASU 2017-04 removes Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. An impairment charge will now be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. ASU 2017-04 is effective for the Company beginning August 1, 2020, with early adoption permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company is currently evaluating the effect the adoption of this guidance will have on its consolidated financial statements. In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash. ASU 2016-18 will require the Company to present the change in the amounts described as restricted cash or restricted cash equivalents in the statement of cash flows. ASU 2016-18 is effective for the Company beginning August 1, 2018, with early adoption permitted. The Company does not believe that adoption of this ASU will have a material impact on its consolidated financial statements. In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory. ASU 2016-16 will require the Company to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. ASU 2016-16 is effective for the Company beginning August 1, 2018, with early adoption permitted. The Company is currently evaluating the effect the adoption of this guidance will have on its consolidated financial statements. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. This new standard will make eight targeted changes to how cash receipts and cash payments are presented and classified in the statement of cash flows. The new standard is effective for the Company beginning August 1, 2018. The new standard will require adoption on a retrospective basis unless it is impracticable to apply, in which case the Company would be required to apply the amendments prospectively as of the earliest date practicable. The Company is currently evaluating the effect the adoption of this guidance will have on its consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, Leases, which requires recognition of right-to-use lease assets and lease liabilities for all leases (with the exception of short-term leases) on the balance sheet of lessees. ASU 2016-02 is effective for the Company beginning August 1, 2019, including interim periods within those fiscal years, with early adoption permitted. This new standard requires a modified retrospective transition approach and provides certain optional transition relief. The Company is currently evaluating the effect the adoption of this guidance will have on its consolidated financial statements. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). The standard is a comprehensive new revenue recognition model that requires revenue to be recognized in a manner to depict the transfer of goods or services to a customer at an amount that reflects the consideration expected to be received in exchange for those goods or services. The FASB has issued several amendments to the standard, including clarifications on disclosure of prior-period performance obligations and remaining performance obligations. The guidance permits two methods of adoption: retrospectively to each prior reporting period presented (full retrospective method), or retrospectively with the cumulative effect of initially applying the guidance recognized at the date of initial application (the cumulative catch-up transition method). The new standard will be effective for the Company beginning August 1, 2018, and adoption as of the original effective date of August 1, 2017 is permitted. The Company is currently evaluating early adoption of the standard, as well as the method of adoption. The Company's ability to early adopt is dependent on system readiness, and the completion of its analysis of information necessary to restate prior period financial statements if the full retrospective method is utilized. While the Company is continuing to assess all potential impacts of the standard, it currently believes the most significant impact relates to the timing of revenue recognition for certain software licenses sold with post contract support ("PCS") for which it does not have vendor-specific objective evidence of fair value ("VSOE") under current guidance. Under the new standard the requirement to have VSOE for undelivered elements is eliminated and the Company will recognize revenue for such software licenses upon transfer of control to its customers.

BASIS OF PRESENTATION AND SUM22

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	6 Months Ended
	Jan. 31, 2017
Accounting Policies [Abstract]
Schedules of Concentration of Revenue and Accounts Receivable	For each significant Partner, revenue as a percentage of total revenue and accounts receivable as a percentage of total accounts receivable, net are as follows: Revenue Accounts Receivable as of Three Months Ended Six Months Ended Customers 2016 2017 2016 2017 July 31, 2016 January 31, Partner A 13 % * 16 % 12 % * * Partner B 19 % 19 % 20 % 20 % 17 % 15 % Partner C 13 % 16 % 12 % 15 % 12 % * Partner D * * * * 23 % 16 % Partner E 12 % 11 % 12 % 10 % 11 % 13 % Partner F 19 % 13 % 18 % 12 % * * ___________________ * Less than 10%

BUSINESS COMBINATIONS (Tables)

BUSINESS COMBINATIONS (Tables)	6 Months Ended
	Jan. 31, 2017
Business Combinations [Abstract]
Schedule of Preliminary Purchase Price Allocation	As of the date of the PernixData Acquisition, the preliminary purchase price allocation was as follows (in thousands): Cash and cash equivalents $ 1,051 Accounts receivable 718 Goodwill 11,965 Intangible assets 24,270 Other assets 667 Deferred revenue (6,007 ) Debt (7,124 ) Other liabilities (2,533 ) Total $ 23,007
Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination	The acquired identifiable intangible assets consist of (dollars in thousands): Amount Estimated Life (in years) In-process R&D $ 16,100 — Developed technology 3,570 5 Customer relationships 4,600 6 $ 24,270
Schedule of Pro Forma Combined Consolidated Financial Information	The unaudited pro forma combined consolidated financial information is as follows (in thousands, except per share data): Six Months Ended 2016 2017 Revenue $ 194,883 $ 349,970 Net loss (87,864 ) (256,293 ) Basic and diluted net loss per share (1.95 ) (2.36 )

FAIR VALUE MEASUREMENTS (Tables

FAIR VALUE MEASUREMENTS (Tables)	6 Months Ended
	Jan. 31, 2017
Fair Value Disclosures [Abstract]
Schedule of Financial Assets and Liabilities Measured on Recurring Basis	The fair value of the Company’s financial assets and liabilities measured on a recurring basis is as follows (in thousands): As of July 31, 2016 Level I Level II Level III Total Financial Assets: Cash equivalents: Money market funds $ 47,305 $ — $ — $ 47,305 Commercial paper — 4,999 — 4,999 Short-term investments: Corporate bonds — 64,360 — 64,360 Commercial paper — 21,631 — 21,631 Total measured at fair value 47,305 90,990 — 138,295 Cash 46,905 Total cash, cash equivalents and short-term investments $ 185,200 Financial Liabilities: Convertible preferred stock warrant liability $ — $ — $ 9,679 $ 9,679 As of January 31, 2017 Level I Level II Level III Total Financial Assets: Cash equivalents: Money market funds $ 115,806 $ — $ — $ 115,806 Commercial paper — 44,364 — 44,364 Short-term investments: Corporate bonds — 95,228 — 95,228 Commercial paper — 23,910 — 23,910 U.S. government securities — 10,009 — 10,009 Total measured at fair value $ 115,806 $ 173,511 $ — 289,317 Cash 65,836 Total cash, cash equivalents and short-term investments $ 355,153 Financial Liabilities: Contingent consideration $ — $ — $ 2,843 $ 2,843
Summary of Changes in Fair Value of Convertible Preferred Stock Warrant Liability	A summary of the changes in the fair value of the Company’s convertible preferred stock warrant liability is as follows (in thousands): Six Months Ended 2016 2017 Convertible preferred stock warrant liability—beginning balance $ 11,683 $ 9,679 Change in fair value* (1,904 ) 21,133 Reclassification of unexercised warrants to additional paid-in capital upon the IPO — (30,812 ) Convertible preferred stock warrant liability—ending balance $ 9,779 $ — ______________ * Recorded in the consolidated statements of operations within other expense—net. A summary of the changes in the fair value of the Company’s contingent consideration is as follows (in thousands): Six Months Ended January 31, 2017 Contingent consideration—beginning balance $ — Assumed in the PernixData Acquisition 2,371 Change in fair value* 472 Contingent consideration—ending balance $ 2,843 ______________ * Recorded in the consolidated statements of operations within general and administrative expenses

BALANCE SHEET COMPONENTS (Table

BALANCE SHEET COMPONENTS (Tables)	6 Months Ended
	Jan. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Investments in Marketable Debt Securities, by Contractual Maturity Date	The following table summarizes the estimated fair value of the Company’s investments in marketable debt securities, by the contractual maturity date (in thousands): As of January 31, 2017 Due within 1 year $ 87,169 Due after 1 year through 3 years 41,978 Total $ 129,147
Schedule of Property, Plant and Equipment	Property and Equipment—Net —Property and equipment, net consists of the following (in thousands): Estimated (In months) As of July 31, 2016 January 31, Computer, production, engineering and other equipment 36 $ 54,161 $ 70,219 Demonstration units 12 33,184 40,962 Leasehold improvements * 6,619 8,213 Furniture and fixtures 60 3,641 4,001 Total property and equipment—gross 97,605 123,395 Less accumulated depreciation and amortization (55,387 ) (71,451 ) Total property and equipment—net $ 42,218 $ 51,944 ______________ * Leasehold improvements are amortized over the shorter of the estimated useful lives of the improvements or the remaining lease term.
Schedule of Finite-Lived Intangible Assets	Intangible Assets—Net —Intangible assets, net consists of the following (in thousands): As of January 31, 2017 Indefinite-lived intangible asset: In-process R&D $ 16,100 Finite-lived intangible assets: Developed technology 7,300 Customer relationships 4,830 Total finite-lived intangible assets, gross 12,130 Total intangible assets, gross 28,230 Less: Accumulated amortization of developed technology (598 ) Accumulated amortization of customer relationships (415 ) Total accumulated amortization (1,013 ) Intangible assets, net $ 27,217 Changes in the net book value of intangible assets are as follows (in thousands): Six Months Ended Intangible assets, net—beginning balance $ — Acquired in the Calm Acquisition 3,960 Acquired in the PernixData Acquisition 24,270 Amortization of intangible assets * (1,013 ) Intangible assets, net—ending balance $ 27,217 ______________ * Represents amortization expense of finite-lived intangible assets recorded in the condensed consolidated statement of operations during the period within product cost of revenue and sales and marketing expenses.
Schedule of Indefinite-Lived Intangible Assets	Intangible Assets—Net —Intangible assets, net consists of the following (in thousands): As of January 31, 2017 Indefinite-lived intangible asset: In-process R&D $ 16,100 Finite-lived intangible assets: Developed technology 7,300 Customer relationships 4,830 Total finite-lived intangible assets, gross 12,130 Total intangible assets, gross 28,230 Less: Accumulated amortization of developed technology (598 ) Accumulated amortization of customer relationships (415 ) Total accumulated amortization (1,013 ) Intangible assets, net $ 27,217 Changes in the net book value of intangible assets are as follows (in thousands): Six Months Ended Intangible assets, net—beginning balance $ — Acquired in the Calm Acquisition 3,960 Acquired in the PernixData Acquisition 24,270 Amortization of intangible assets * (1,013 ) Intangible assets, net—ending balance $ 27,217 ______________ * Represents amortization expense of finite-lived intangible assets recorded in the condensed consolidated statement of operations during the period within product cost of revenue and sales and marketing expenses.
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Estimated future amortization expense of finite-lived intangible assets is as follows: Year Ending July 31: (In thousands) 2017 (remaining six months) $ 1,215 2018 2,220 2019 2,201 2020 2,201 2021 2,201 Thereafter 1,079 Total $ 11,117
Schedule of Accrued Liabilities	Accrued Compensation and Benefits —Accrued compensation and benefits consists of the following (in thousands): As of July 31, 2016 January 31, Accrued commissions $ 14,203 $ 10,270 Accrued vacation 3,490 4,513 Contributions to ESPP withheld — 13,337 Accrued bonus 3,592 3,486 Other 3,262 5,039 Total accrued compensation and benefits $ 24,547 $ 36,645 Accrued Expenses and Other Liabilities —Accrued expenses and other liabilities consists of the following (in thousands): As of July 31, 2016 January 31, Accrued professional services $ 3,585 $ 3,184 Income taxes payable 1,417 1,812 Other 535 1,408 Total accrued expenses and other liabilities $ 5,537 $ 6,404

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Tables)	6 Months Ended
	Jan. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Schedule of Future Minimum Payments Due Under Operating Leases	Future minimum payments due under operating leases as of January 31, 2017 are as follows: Year Ending July 31: (In thousands) 2017 (remaining six months) $ 6,086 2018 10,847 2019 10,820 2020 10,402 2021 7,556 Thereafter 2,929 Total $ 48,640

CONVERTIBLE PREFERRED STOCK W27

CONVERTIBLE PREFERRED STOCK WARRANTS (Tables)	6 Months Ended
	Jan. 31, 2017
Other Liabilities Disclosure [Abstract]
Schedule of Convertible Preferred Stock Warrants	The Convertible Preferred Stock Warrants outstanding prior to the IPO were as follows (in thousands, except for share and per share amounts): Fair Value as of Class of Shares Issuance Date Contractual Term Number of Exercise July 31, 2016 IPO Date(1) Series A warrants December 21, 2009 10 years 683,644 $ 0.234 $ 8,259 $ 25,883 Series A warrants May 10, 2010 10 years 85,450 0.234 1,032 3,235 Series D warrants November 26, 2013 10 years 10,000 7.289 77 308 Series D warrants December 12, 2013 7 years 45,000 7.289 311 1,386 824,094 $ 9,679 (2) $ 30,812 ______________ (1) Immediately prior to the closing of the Company’s IPO. (2) Reflected in the consolidated balance sheets as convertible preferred stock warrant liability.

CONVERTIBLE PREFERRED STOCK (Ta

CONVERTIBLE PREFERRED STOCK (Tables)	6 Months Ended
	Jan. 31, 2017
Temporary Equity Disclosure [Abstract]
Schedule of Convertible Preferred Stock	Series A Convertible Preferred Stock, Series B Convertible Preferred Stock, Series C Convertible Preferred Stock, Series D Convertible Preferred Stock and Series E Convertible Preferred Stock (collectively the “Convertible Preferred Stock”) outstanding consisted of the following as of July 31, 2016 and as of immediately prior to the automatic conversion of the Convertible Preferred Stock into Class B common stock: Shares Shares Aggregate (In thousands) Series A 28,165,300 27,396,198 $ 15,494 Series B 16,558,441 16,558,441 25,250 Series C 7,683,710 7,683,710 33,000 Series D 13,912,438 13,857,438 151,500 Series E 11,943,420 10,823,724 145,000 78,263,309 76,319,511 $ 370,244

EQUITY AWARD PLANS (Tables)

EQUITY AWARD PLANS (Tables)	6 Months Ended
	Jan. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of RSUs Activity	The Company’s summary of Performance RSUs activity under the Stock Plans is as follows: Number of Grant Date Fair Value per Share Outstanding—July 31, 2016 12,265,369 $ 13.23 Granted 8,020,980 21.98 Released (4,375 ) 14.80 Canceled/forfeited (410,208 ) 14.82 Outstanding—January 31, 2017 19,871,766 16.74
Schedule of ESPP Valuation Assumptions	The Company uses the Black-Scholes option-pricing model to determine the fair value of shares purchased under the 2016 ESPP with the following weighted average assumptions on the date of the grant (on October 11, 2016): Six Months Ended Expected term (in years) 0.75 Risk-free interest rate 0.6 % Volatility 50.6 % Dividend yield — %
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs	Total stock-based compensation expense recognized for stock awards in the consolidated statements of operations is as follows (in thousands): Three Months Ended Six Months Ended 2016 2017 2016 2017 Cost of revenue: Product $ 104 $ 848 $ 213 $ 1,814 Support and other services 241 2,389 534 5,739 Sales and marketing 1,964 15,528 4,082 49,419 Research and development 1,612 28,759 3,241 62,785 General and administrative 1,029 5,083 2,266 23,578 Total stock-based compensation expense $ 4,950 $ 52,607 $ 10,336 $ 143,335
Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan	Total stock-based compensation expense recognized for stock awards in the consolidated statements of operations by type of awards is as follows (in thousands): Three Months Ended Six Months Ended 2016 2017 2016 2017 RSUs * $ — $ 36,677 $ — $ 119,008 Stock options * 4,950 5,121 10,336 11,013 ESPP — 10,809 — 13,314 Total stock-based compensation expense $ 4,950 $ 52,607 $ 10,336 $ 143,335 _____________ * Includes stock-compensation expense related to stock awards with performance conditions, which vesting was deemed probable during the six months ended January 31, 2017 .

NET LOSS PER SHARE (Tables)

NET LOSS PER SHARE (Tables)	6 Months Ended
	Jan. 31, 2017
Earnings Per Share [Abstract]
Schedule of Basic and Diluted Net Loss Per Share	The computation of basic and diluted net loss per share is as follows (in thousands, except share and per share data): Three Months Ended Six Months Ended 2016 2017 2016 2017 Numerator: Net loss $ (33,205 ) $ (93,212 ) $ (71,750 ) $ (255,381 ) Denominator: Weighted-average shares—basic and diluted 43,666,825 141,996,600 43,252,879 108,185,194 Net loss per share attributable to common stockholders—basic and diluted $ (0.76 ) $ (0.66 ) $ (1.66 ) $ (2.36 )
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	The potential shares of common stock that were excluded from the computation of diluted net loss per share attributable to common stockholders for the periods presented because including them would have been anti-dilutive are as follows: Three and Six Months Ended 2016 2017 Stock awards 34,306,230 44,813,334 Common stock subject to repurchase 1,504,001 551,750 Common stock warrants — 51,270 Convertible preferred stock 76,319,511 — Convertible preferred stock warrants 824,094 — Total 112,953,836 45,416,354

SEGMENT INFORMATION (Tables)

SEGMENT INFORMATION (Tables)	6 Months Ended
	Jan. 31, 2017
Segment Reporting [Abstract]
Schedule of Revenue by Geographic Area	The following table sets forth revenue by geographic area based on bill-to location (in thousands): Three Months Ended Six Months Ended 2016 2017 2016 2017 U.S. $ 61,720 $ 102,173 $ 118,448 $ 205,044 Europe, the Middle East and Africa 20,982 33,272 37,343 57,520 Asia-Pacific 13,681 37,382 24,835 66,290 Other Americas 6,314 9,368 9,827 20,150 Total revenue $ 102,697 $ 182,195 $ 190,453 $ 349,004

ORGANIZATION (Details)

ORGANIZATION (Details) $ / shares in Units, $ in Millions	1 Months Ended		3 Months Ended
	Oct. 31, 2016USD ($)shares	Sep. 30, 2016voteclassshares	Oct. 31, 2016business	Jan. 31, 2017voteclass$ / shares
Class of Stock [Line Items]
Number of businesses acquired | business			2
Issuance of common stock upon initial public offering (in shares)	17,100,500
Shares issued price per share (in dollars per share) | $ / shares				$ 16
Issuance of class A common stock upon initial public offering, net of issuance costs | $	$ 254.5
Underwriting discounts and commissions | $	(19.2)
Offering costs incurred | $	$ 5.2
Common stock, number of classes of stock | class		2		2
Over-Allotment Option
Class of Stock [Line Items]
Issuance of common stock upon initial public offering (in shares)	2,230,500
Preferred Class B | Common Stock
Class of Stock [Line Items]
Conversion of convertible preferred stock to common stock upon initial public (in shares)	76,319,511
Common Class A
Class of Stock [Line Items]
Common stock number of votes per share | vote		1		1
Common Class B
Class of Stock [Line Items]
Common stock number of votes per share | vote		10		10
Common Class B | Common Stock
Class of Stock [Line Items]
Conversion of convertible preferred stock to common stock upon initial public (in shares)		76,319,511
Conversion ratio	1	1

BASIS OF PRESENTATION AND SUM33

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jan. 31, 2017	Jan. 31, 2016	Jan. 31, 2017	Jan. 31, 2016	Jul. 31, 2016	Oct. 31, 2016
New Accounting Pronouncement, Early Adoption, Effect | Accounting Standards Update 2016-09
Concentration Risk [Line Items]
Deferred tax assets, net						$ 0.1
New Accounting Pronouncement, Early Adoption, Effect | Retained Earnings | Accounting Standards Update 2016-09
Concentration Risk [Line Items]
Cumulative effect of new accounting principle in period of adoption						$ 0.1
Partner Concentration Risk | Revenue | Partner A
Concentration Risk [Line Items]
Concentration risk percentage		13.00%	12.00%	16.00%
Partner Concentration Risk | Revenue | Partner B
Concentration Risk [Line Items]
Concentration risk percentage	19.00%	19.00%	20.00%	20.00%
Partner Concentration Risk | Revenue | Partner C
Concentration Risk [Line Items]
Concentration risk percentage	16.00%	13.00%	15.00%	12.00%
Partner Concentration Risk | Revenue | Partner E
Concentration Risk [Line Items]
Concentration risk percentage	11.00%	12.00%	10.00%	12.00%
Partner Concentration Risk | Revenue | Partner F
Concentration Risk [Line Items]
Concentration risk percentage	13.00%	19.00%	12.00%	18.00%
Partner Concentration Risk | Accounts Receivable | Partner B
Concentration Risk [Line Items]
Concentration risk percentage			15.00%		17.00%
Partner Concentration Risk | Accounts Receivable | Partner C
Concentration Risk [Line Items]
Concentration risk percentage					12.00%
Partner Concentration Risk | Accounts Receivable | Partner D
Concentration Risk [Line Items]
Concentration risk percentage			16.00%		23.00%
Partner Concentration Risk | Accounts Receivable | Partner E
Concentration Risk [Line Items]
Concentration risk percentage			13.00%		11.00%

BUSINESS COMBINATIONS - Calm Ac

BUSINESS COMBINATIONS - Calm Acquisition (Details) - USD ($) $ in Thousands	Aug. 22, 2016	Jan. 31, 2017	Jul. 31, 2016
Business Acquisition [Line Items]
Goodwill		$ 16,784	$ 0
Calm Acquisition
Business Acquisition [Line Items]
Consideration transferred	$ 7,700
Business acquisition equity issued (in shares)	528,517
Cash payment to acquire business	$ 1,400
Goodwill	4,800
Intangible assets	$ 4,000
Estimated Life (in years)	4 years 10 months
Acquisition related costs	$ 600

BUSINESS COMBINATIONS - PernixD

BUSINESS COMBINATIONS - PernixData Acquisition (Details) - USD ($) $ in Thousands	Sep. 06, 2016	Jan. 31, 2017	Jul. 31, 2016
Purchase Price Allocation:
Goodwill		$ 16,784	$ 0
PernixData Acquisition
Business Acquisition [Line Items]
Consideration transferred	$ 23,000
Business acquisition equity issued (in shares)	1,711,019
Payment term (in years)	3 years
Contingent consideration maximum	$ 19,000
Contingent liability	2,400
Contingent liability adjustment	1,800
Acquisition related costs	700
Purchase Price Allocation:
Cash and cash equivalents	1,051
Accounts receivable	718
Goodwill	11,965
Intangible assets	24,270
Other assets	667
Deferred revenue	(6,007)
Debt	(7,124)
Other liabilities	(2,533)
Total	23,007
Contingent Consideration, Purchase Price | PernixData Acquisition
Business Acquisition [Line Items]
Contingent consideration maximum	7,500
Contingent Consideration, Compensation | PernixData Acquisition
Business Acquisition [Line Items]
Contingent consideration maximum	$ 11,500
Minimum | In-process R&D | PernixData Acquisition
Business Acquisition [Line Items]
Estimated Life (in years)	5 years
Maximum | In-process R&D | PernixData Acquisition
Business Acquisition [Line Items]
Estimated Life (in years)	7 years

BUSINESS COMBINATIONS - Perni36

BUSINESS COMBINATIONS - PernixData Acquisition, Acquired Intangible Assets (Details) - PernixData Acquisition - USD ($) $ in Thousands	Sep. 06, 2016	Jan. 31, 2017
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross		$ 24,270
Intangible assets	$ 24,270
In-process R&D
Acquired Indefinite-lived Intangible Assets [Line Items]
In-process R&D	16,100
Developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	$ 3,570
Estimated Life (in years)	5 years
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	$ 4,600
Estimated Life (in years)	6 years

BUSINESS COMBINATIONS - Pro For

BUSINESS COMBINATIONS - Pro Forma Information (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jan. 31, 2017	Jan. 31, 2016
Business Acquisition, Pro Forma Information [Abstract]
Revenue	$ 349,970	$ 194,883
Net loss	$ (256,293)	$ (87,864)
Basic net loss per share (in dollars per share)	$ (2.36)	$ (1.95)
Diluted net loss per share (in dollars per share)	$ (2.36)	$ (1.95)

FAIR VALUE MEASUREMENTS - Fair

FAIR VALUE MEASUREMENTS - Fair Value of Financial Assets and Liabilities (Details) - USD ($) $ in Thousands	Jan. 31, 2017	Nov. 01, 2016	Jul. 31, 2016
Financial Assets:
Short-term investments:	$ 129,147		$ 85,991
Financial Liabilities:
Convertible preferred stock warrant liability	0	$ 30,812	9,679
Recurring
Financial Assets:
Total measured at fair value	289,317		138,295
Cash	65,836		46,905
Total cash, cash equivalents and short-term investments	355,153		185,200
Recurring | Warrant
Financial Liabilities:
Convertible preferred stock warrant liability			9,679
Recurring | Commitments
Financial Liabilities:
Convertible preferred stock warrant liability	2,843
Recurring | Corporate bonds
Financial Assets:
Short-term investments:	95,228		64,360
Recurring | Commercial paper
Financial Assets:
Short-term investments:	23,910		21,631
Recurring | U.S. government securities
Financial Assets:
Short-term investments:	10,009
Recurring | Money market funds
Financial Assets:
Cash equivalents:	115,806		47,305
Recurring | Commercial paper
Financial Assets:
Cash equivalents:	44,364		4,999
Recurring | Level I
Financial Assets:
Total measured at fair value	115,806		47,305
Recurring | Level I | Warrant
Financial Liabilities:
Convertible preferred stock warrant liability			0
Recurring | Level I | Commitments
Financial Liabilities:
Convertible preferred stock warrant liability	0
Recurring | Level I | Corporate bonds
Financial Assets:
Short-term investments:	0		0
Recurring | Level I | Commercial paper
Financial Assets:
Short-term investments:	0		0
Recurring | Level I | U.S. government securities
Financial Assets:
Short-term investments:	0
Recurring | Level I | Money market funds
Financial Assets:
Cash equivalents:	115,806		47,305
Recurring | Level I | Commercial paper
Financial Assets:
Cash equivalents:	0		0
Recurring | Level II
Financial Assets:
Total measured at fair value	173,511		90,990
Recurring | Level II | Warrant
Financial Liabilities:
Convertible preferred stock warrant liability			0
Recurring | Level II | Commitments
Financial Liabilities:
Convertible preferred stock warrant liability	0
Recurring | Level II | Corporate bonds
Financial Assets:
Short-term investments:	95,228		64,360
Recurring | Level II | Commercial paper
Financial Assets:
Short-term investments:	23,910		21,631
Recurring | Level II | U.S. government securities
Financial Assets:
Short-term investments:	10,009
Recurring | Level II | Money market funds
Financial Assets:
Cash equivalents:			0
Recurring | Level II | Commercial paper
Financial Assets:
Cash equivalents:	44,364		4,999
Recurring | Level III
Financial Assets:
Total measured at fair value	0		0
Recurring | Level III | Warrant
Financial Liabilities:
Convertible preferred stock warrant liability			9,679
Recurring | Level III | Commitments
Financial Liabilities:
Convertible preferred stock warrant liability	2,843
Recurring | Level III | Corporate bonds
Financial Assets:
Short-term investments:	0		0
Recurring | Level III | Commercial paper
Financial Assets:
Short-term investments:	0		0
Recurring | Level III | U.S. government securities
Financial Assets:
Short-term investments:	0
Recurring | Level III | Money market funds
Financial Assets:
Cash equivalents:	0		0
Recurring | Level III | Commercial paper
Financial Assets:
Cash equivalents:	$ 0		$ 0

FAIR VALUE MEASUREMENTS - Level

FAIR VALUE MEASUREMENTS - Level 3 Roll Forward (Details) - USD ($) $ in Thousands	6 Months Ended
	Jan. 31, 2017	Jan. 31, 2016
Warrant
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Contingent consideration—beginning balance	$ 9,679	$ 11,683
Change in fair value	21,133	(1,904)
Reclassification of unexercised warrants to additional paid-in capital upon the IPO	(30,812)	0
Convertible preferred stock warrant liability—beginning balance	0	$ 9,779
Commitments
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Contingent consideration—beginning balance	0
Assumed in the PernixData Acquisition	2,371
Change in fair value	472
Convertible preferred stock warrant liability—beginning balance	$ 2,843

BALANCE SHEET COMPONENTS - Shor

BALANCE SHEET COMPONENTS - Short-Term Investments (Details) - USD ($) $ in Thousands	Jan. 31, 2017	Jul. 31, 2016
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract]
Due within 1 year	$ 87,169
Due after 1 year through 3 years	41,978
Total	$ 129,147	$ 85,991

BALANCE SHEET COMPONENTS - Prop

BALANCE SHEET COMPONENTS - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2017	Jan. 31, 2016	Jan. 31, 2017	Jan. 31, 2016	Jul. 31, 2016
Property, Plant and Equipment [Line Items]
Total property and equipment—gross	$ 123,395		$ 123,395		$ 97,605
Less accumulated depreciation and amortization	(71,451)		(71,451)		(55,387)
Total property and equipment—net	51,944		51,944		42,218
Depreciation and amortization			$ 18,172	$ 11,822
Computer, production, engineering and other equipment
Property, Plant and Equipment [Line Items]
Estimated Useful Life (In months)			36 months
Total property and equipment—gross	70,219		$ 70,219		54,161
Demonstration units
Property, Plant and Equipment [Line Items]
Estimated Useful Life (In months)			12 months
Total property and equipment—gross	40,962		$ 40,962		33,184
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment—gross	8,213		$ 8,213		6,619
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Estimated Useful Life (In months)			60 months
Total property and equipment—gross	4,001		$ 4,001		$ 3,641
Property, Plant and Equipment
Property, Plant and Equipment [Line Items]
Depreciation and amortization	$ 9,000	$ 6,300	$ 17,200	$ 11,800

BALANCE SHEET COMPONENTS - Inta

BALANCE SHEET COMPONENTS - Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 06, 2016	Jan. 31, 2017	Jan. 31, 2017
Finite-lived intangible assets:
Finite-lived intangible assets, gross			$ 12,130
Total intangible assets, gross			28,230
Less:
Accumulated amortization			(1,013)
Intangible assets, net		$ 0	27,217
Finite-lived Intangible Assets [Roll Forward]
Intangible assets, net—beginning balance		0
Amortization of intangible assets		(1,013)
Intangible assets, net—ending balance		27,217
Calm Acquisition
Finite-lived Intangible Assets [Roll Forward]
Intangible assets acquired		3,960
PernixData Acquisition
Finite-lived Intangible Assets [Roll Forward]
Intangible assets acquired		$ 24,270
In-process R&D
Indefinite-lived intangible asset:
In-process R&D			16,100
Developed technology
Finite-lived intangible assets:
Finite-lived intangible assets, gross			7,300
Less:
Accumulated amortization			(598)
Developed technology | PernixData Acquisition
Finite-lived Intangible Assets [Roll Forward]
Intangible assets acquired	$ 3,570
Customer relationships
Finite-lived intangible assets:
Finite-lived intangible assets, gross			4,830
Less:
Accumulated amortization			$ (415)
Customer relationships | PernixData Acquisition
Finite-lived Intangible Assets [Roll Forward]
Intangible assets acquired	$ 4,600

BALANCE SHEET COMPONENTS - Futu

BALANCE SHEET COMPONENTS - Future Amortization Expense (Details) $ in Thousands	Jan. 31, 2017USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2017 (remaining six months)	$ 1,215
2,018	2,220
2,019	2,201
2,020	2,201
2,021	2,201
Thereafter	1,079
Total	$ 11,117

BALANCE SHEET COMPONENTS - Accr

BALANCE SHEET COMPONENTS - Accrued Compensation Benefits (Details) - USD ($) $ in Thousands	Jan. 31, 2017	Jul. 31, 2016
Employee-related Liabilities, Current [Abstract]
Accrued commissions	$ 10,270	$ 14,203
Accrued vacation	4,513	3,490
Contributions to ESPP withheld	13,337	0
Accrued bonus	3,486	3,592
Other	5,039	3,262
Total accrued compensation and benefits	$ 36,645	$ 24,547

BALANCE SHEET COMPONENTS - Ac45

BALANCE SHEET COMPONENTS - Accrued Liabilities (Details) - USD ($) $ in Thousands	Jan. 31, 2017	Jul. 31, 2016
Other Liabilities Disclosure [Abstract]
Accrued professional services	$ 3,184	$ 3,585
Income taxes payable	1,812	1,417
Other	1,408	535
Total accrued expenses and other liabilities	$ 6,404	$ 5,537

DEBT (Details)

DEBT (Details) - USD ($)	1 Months Ended	6 Months Ended
	Sep. 30, 2016	Jan. 31, 2017	Jan. 31, 2016	Apr. 30, 2016
Debt Instrument [Line Items]
Gain (loss) on extinguishment of debt	$ (3,300,000)	$ (3,320,000)	$ 0
Write off of unamortized debt issuance costs	1,700,000
Loss related to guaranteed minimum return	$ 1,600,000
Senior Notes | Senior Notes Due April 15, 2019
Debt Instrument [Line Items]
Debt instrument face amount				$ 75,000,000

COMMITMENTS AND CONTINGENCIES47

COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2017	Jan. 31, 2016	Jan. 31, 2017	Jan. 31, 2016
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2017 (remaining six months)	$ 6,086		$ 6,086
2,018	10,847		10,847
2,019	10,820		10,820
2,020	10,402		10,402
2,021	7,556		7,556
Thereafter	2,929		2,929
Total	48,640		48,640
Operating leases, rent expense	2,900	$ 1,500	5,800	$ 2,900
Non-contract Vendors
Loss Contingencies [Line Items]
Purchase obligation	20,700		20,700
Contract Manufacturer
Loss Contingencies [Line Items]
Purchase obligation	$ 18,600		$ 18,600

CONVERTIBLE PREFERRED STOCK W48

CONVERTIBLE PREFERRED STOCK WARRANTS (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
	Jan. 31, 2017	Jan. 31, 2017	Nov. 01, 2016	Jul. 31, 2016
Class of Warrant or Right [Line Items]
Number of Shares (in shares)	824,094	824,094
Fair value	$ 0	$ 0	$ 30,812	$ 9,679
Series A Warrants, Issued December 2009
Class of Warrant or Right [Line Items]
Contractual Term (in years)		10 years
Number of Shares (in shares)	683,644	683,644
Exercise Price per Share (in dollars per share)	$ 0.234	$ 0.234
Fair value			25,883	8,259
Series A Warrants, Issued May 2010
Class of Warrant or Right [Line Items]
Contractual Term (in years)		10 years
Number of Shares (in shares)	85,450	85,450
Exercise Price per Share (in dollars per share)	$ 0.234	$ 0.234
Fair value			3,235	1,032
Series D Warrants, Issued November 2013
Class of Warrant or Right [Line Items]
Contractual Term (in years)		10 years
Number of Shares (in shares)	10,000	10,000
Exercise Price per Share (in dollars per share)	$ 7.289	$ 7.289
Fair value			308	77
Series D Warrants, Issued December 2013
Class of Warrant or Right [Line Items]
Contractual Term (in years)		7 years
Number of Shares (in shares)	45,000	45,000
Exercise Price per Share (in dollars per share)	$ 7.289	$ 7.289
Fair value			$ 1,386	$ 311
Common Class B Warrant
Class of Warrant or Right [Line Items]
Number of Shares (in shares)	51,270	51,270
Number of warrants exercised (in shares)	717,824	772,824
Exercise of warrants (in shares)	711,935	758,464

CONVERTIBLE PREFERRED STOCK (De

CONVERTIBLE PREFERRED STOCK (Details) $ in Thousands	1 Months Ended
	Oct. 31, 2016	Sep. 30, 2016shares	Jul. 31, 2016USD ($)shares
Temporary Equity [Line Items]
Shares Authorized (in shares)			78,263,309
Shares Issued (in shares)			76,319,511
Shares Outstanding (in shares)			76,319,511
Aggregate Liquidation Preference | $			$ 370,244
Common Class B | Common Stock
Temporary Equity [Line Items]
Conversion ratio	1	1
Conversion of convertible preferred stock to common stock upon initial public (in shares)		76,319,511
Series A
Temporary Equity [Line Items]
Shares Authorized (in shares)			28,165,300
Shares Issued (in shares)			27,396,198
Shares Outstanding (in shares)			27,396,198
Aggregate Liquidation Preference | $			$ 15,494
Series B
Temporary Equity [Line Items]
Shares Authorized (in shares)			16,558,441
Shares Issued (in shares)			16,558,441
Shares Outstanding (in shares)			16,558,441
Aggregate Liquidation Preference | $			$ 25,250
Series C
Temporary Equity [Line Items]
Shares Authorized (in shares)			7,683,710
Shares Issued (in shares)			7,683,710
Shares Outstanding (in shares)			7,683,710
Aggregate Liquidation Preference | $			$ 33,000
Series D
Temporary Equity [Line Items]
Shares Authorized (in shares)			13,912,438
Shares Issued (in shares)			13,857,438
Shares Outstanding (in shares)			13,857,438
Aggregate Liquidation Preference | $			$ 151,500
Series E
Temporary Equity [Line Items]
Shares Authorized (in shares)			11,943,420
Shares Issued (in shares)			10,823,724
Shares Outstanding (in shares)			10,823,724
Aggregate Liquidation Preference | $			$ 145,000

STOCKHOLDERS_ EQUITY (Details)

STOCKHOLDERS’ EQUITY (Details)	Jan. 31, 2017voteclass$ / sharesshares	Sep. 30, 2016voteclass
Class of Stock [Line Items]
Preferred stock, shares authorized (in shares)	200,000,000
Preferred stock, par value (in dollars per share) | $ / shares	$ 0.000025
Preferred stock, shares issued (in shares)	0
Preferred stock, shares outstanding (in shares)	0
Common stock, number of classes of stock | class	2	2
Common stock, par value (in dollars per share) | $ / shares	$ 0.000025
Common Class A
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	1,000,000,000
Common stock, shares issued (in shares)	33,500,377
Common stock number of votes per share | vote	1	1
Common Class B
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	200,000,000
Common stock, shares issued (in shares)	109,713,179
Common stock number of votes per share | vote	10	10

EQUITY AWARD PLANS - Additional

EQUITY AWARD PLANS - Additional Information (Details)	Aug. 16, 2016USD ($)shares	Sep. 30, 2016USD ($)purchase_period$ / sharesshares	Jul. 31, 2016$ / sharesshares	Jan. 31, 2017USD ($)$ / sharesshares	Dec. 31, 2015shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued price per share (in dollars per share) | $ / shares				$ 16
Compensation not yet recognized | $				$ 272,600,000
Period for recognition (in years)				1 year 10 months 24 days
Tender Offer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incremental compensation cost | $	$ 3,400,000
Exercise price be considered for conversion (in dollars per share) | $ / shares			$ 8.41
Options, cancelled in period (in shares)	1,361,317
2016 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future issuance (in shares)				81,873,371
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested RSUs (in shares)			12,265,369	19,871,766
Granted (in shares)				8,020,980
RSUs | Tender Offer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	911,489
Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of eligible compensation (up to)		15.00%
Monetary cap | $		$ 25,000
Share cap (in shares)		1,000
Offering period duration (in months)		12 months
Number of six-month purchase periods | purchase_period		2
Purchase price of common stock, percent		85.00%
Common Class A | 2016 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future issuance (in shares)					22,400,000
Annual increase (in shares)		18,000,000
Annual increase, percent of outstanding shares		5.00%
Number of shares available for grant (in shares)				18,206,697
Common Class A | Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future issuance (in shares)		3,800,000
Annual increase (in shares)		3,800,000
Annual increase, percent of outstanding shares		1.00%
Shares issued price per share (in dollars per share) | $ / shares		$ 16
Common Class B | 2016 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future issuance (in shares)				38,667,284

EQUITY AWARD PLANS - RSU (Detai

EQUITY AWARD PLANS - RSU (Details) - RSUs - $ / shares	6 Months Ended
	Jan. 31, 2017	Jul. 31, 2016
Number of Shares
Outstanding, beginning balance (in shares)	12,265,369
Granted (in shares)	8,020,980
Released (in shares)	(4,375)
Canceled/forfeited (in shares)	(410,208)
Outstanding, ending balance (in shares)	19,871,766
Grant Date Fair Value per Share
Outstanding (in dollars per share)	$ 16.74	$ 13.23
Granted (in dollars per share)	21.98
Released (in dollars per share)	14.80
Canceled/forfeited (in dollars per share)	$ 14.82

EQUITY AWARD PLANS - ESPP (Deta

EQUITY AWARD PLANS - ESPP (Details) - Employee Stock Purchase Plan	6 Months Ended
	Jan. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)	9 months
Risk-free interest rate	0.60%
Volatility	50.60%
Dividend yield	0.00%

EQUITY AWARD PLANS - Stock Base

EQUITY AWARD PLANS - Stock Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2017	Jan. 31, 2016	Jan. 31, 2017	Jan. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	$ 52,607	$ 4,950	$ 143,335	$ 10,336
RSUs
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	36,677	0	119,008	0
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	5,121	4,950	11,013	10,336
Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	10,809	0	13,314	0
Cost of revenue, product
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	848	104	1,814	213
Cost of revenue, support and other services
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	2,389	241	5,739	534
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	15,528	1,964	49,419	4,082
Research and development
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	28,759	1,612	62,785	3,241
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	$ 5,083	$ 1,029	$ 23,578	$ 2,266

INCOME TAXES (Details)

INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2017	Jan. 31, 2016	Jan. 31, 2017	Jan. 31, 2016
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 501	$ 620	$ 577	$ 1,140
Valuation allowance release			$ 1,500

NET LOSS PER SHARE - Computatio

NET LOSS PER SHARE - Computation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2017	Jan. 31, 2016	Jan. 31, 2017	Jan. 31, 2016
Earnings Per Share [Abstract]
Net loss	$ (93,212)	$ (33,205)	$ (255,381)	$ (71,750)
Weighted-average shares used in computing net loss per share attributable to common stockholders—basic and diluted (in shares)	141,996,600	43,666,825	108,185,194	43,252,879
Net loss per share attributable to common stockholders—basic and diluted (in dollars per share)	$ (0.66)	$ (0.76)	$ (2.36)	$ (1.66)

NET LOSS PER SHARE - Antidiluti

NET LOSS PER SHARE - Antidilutive Securities (Details) - shares	3 Months Ended		6 Months Ended
	Jan. 31, 2017	Jan. 31, 2016	Jan. 31, 2017	Jan. 31, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	45,416,354	112,953,836	45,416,354	112,953,836
Stock awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	44,813,334	34,306,230	44,813,334	34,306,230
Common stock subject to repurchase
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	551,750	1,504,001	551,750	1,504,001
Common stock warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	51,270	0	51,270	0
Convertible preferred stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	0	76,319,511	0	76,319,511
Convertible preferred stock warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	0	824,094	0	824,094

SEGMENT INFORMATION (Details)

SEGMENT INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2017	Jan. 31, 2016	Jan. 31, 2017	Jan. 31, 2016	Jul. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 182,195	$ 102,697	$ 349,004	$ 190,453
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	102,173	61,720	205,044	118,448
Long-lived assets	58,000		58,000		$ 30,000
Europe, the Middle East and Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	33,272	20,982	57,520	37,343
Asia-Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	37,382	13,681	66,290	24,835
Other Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 9,368	$ 6,314	$ 20,150	$ 9,827

RELATED PARTY TRANSACTIONS (Det

RELATED PARTY TRANSACTIONS (Details)	Sep. 06, 2016USD ($)shares	Jan. 31, 2017USD ($)	Jan. 31, 2016USD ($)	Jan. 31, 2017USD ($)director	Jan. 31, 2016USD ($)	Oct. 31, 2016USD ($)	Sep. 05, 2016	Jul. 31, 2016USD ($)
Related Party Transaction [Line Items]
Purchases from related party		$ 500,000	$ 300,000	$ 700,000	$ 700,000
Accounts receivable, related parties						$ 0		$ 0
Revenue from related parties		$ 0	$ 0	$ 100,000	$ 200,000
PernixData Acquisition
Related Party Transaction [Line Items]
Business acquisition equity issued (in shares) | shares	1,711,019
Contingent consideration maximum	$ 19,000,000
Lightspeed Venture Partners | Lightspeed Venture Partners
Related Party Transaction [Line Items]
Number of directors affiliated with related party | director				2
Lightspeed Venture Partners | Lightspeed Venture Partners | Convertible preferred stock
Related Party Transaction [Line Items]
Ownership percentage by noncontrolling owners								36.70%
Lightspeed Venture Partners | PernixData Acquisition | Lightspeed Venture Partners
Related Party Transaction [Line Items]
Business acquisition equity issued (in shares) | shares	625,478
Contingent consideration maximum	$ 2,700,000
PernixData | Lightspeed Venture Partners
Related Party Transaction [Line Items]
Ownership percentage							26.40%