Nutanix (NTNX) 10-Q 12 Jun 18 2018 Q3 Quarterly report Financial data

DOCUMENT AND ENTITY INFORMATION

DOCUMENT AND ENTITY INFORMATION - shares	9 Months Ended
	Apr. 30, 2018	May 31, 2018
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	Apr. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q3
Amendment Flag	false
Common Class A
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding (in shares)		132,472,453
Common Class B
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding (in shares)		38,206,910

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Apr. 30, 2018	Jul. 31, 2017	[1]
Current assets:
Cash and cash equivalents	$ 376,789	$ 138,359
Short-term investments	546,675	210,694
Accounts receivable, net	194,323	178,876
Deferred commissions—current	30,274	23,843
Prepaid expenses and other current assets	36,615	28,362
Total current assets	1,184,676	580,134
Property and equipment, net	76,322	58,072
Deferred commissions—non-current	72,454	49,684
Intangible assets, net	47,790	26,001
Goodwill	88,324	16,672
Other assets—non-current	5,832	7,649
Total assets	1,475,398	738,212
Current liabilities:
Accounts payable	71,405	73,725
Accrued compensation and benefits	61,221	57,521
Accrued expenses and other current liabilities	11,645	9,707
Deferred revenue—current	243,770	170,123
Total current liabilities	388,041	311,076
Deferred revenue—non-current	296,119	198,933
Convertible senior notes, net	422,567	0
Other liabilities—non-current	14,090	11,140
Total liabilities	1,120,817	521,149
Commitments and contingencies (Note 7)
Stockholders’ equity:
Preferred stock, par value of $0.000025 per share— 200,000,000 shares authorized as of July 31, 2017 and April 30, 2018; no shares issued and outstanding as of July 31, 2017 and April 30, 2018	0	0
Common stock, par value of $0.000025 per share—1,200,000,000 (1,000,000,000 Class A, 200,000,000 Class B) shares authorized as of July 31, 2017 and April 30, 2018; 154,636,520 (93,570,171 Class A and 61,066,349 Class B) and 170,282,321 (132,152,095 Class A and 38,130,226 Class B) shares issued and outstanding as of July 31, 2017 and April 30, 2018	4	4
Additional paid-in capital	1,296,575	948,134
Accumulated other comprehensive loss	(1,237)	(106)
Accumulated deficit	(940,761)	(730,969)
Total stockholders’ equity	354,581	217,063
Total liabilities and stockholders’ equity	$ 1,475,398	$ 738,212
[1]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

CONDENSED CONSOLIDATED BALANCE3

CONDENSED CONSOLIDATED BALANCE SHEETS (parenthetical) - $ / shares	Apr. 30, 2018	Jul. 31, 2017
Preferred stock, par value (in dollars per share)	$ 0.000025	$ 0.000025
Preferred stock, shares authorized (in shares)	200,000,000	200,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.000025	$ 0.000025
Common stock, shares authorized (in shares)	1,200,000,000	1,200,000,000
Common stock, shares issued (in shares)	170,282,321	154,636,520
Common stock, shares outstanding (in shares)	170,282,321	154,636,520
Common Class A
Common stock, shares authorized (in shares)	1,000,000,000	1,000,000,000
Common stock, shares issued (in shares)	132,152,095	93,570,171
Common stock, shares outstanding (in shares)	132,152,095	93,570,171
Common Class B
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares issued (in shares)	38,130,226	61,066,349
Common stock, shares outstanding (in shares)	38,130,226	61,066,349

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Apr. 30, 2018	Apr. 30, 2017	[1]	Apr. 30, 2018	Apr. 30, 2017	[1]
Revenue:
Product	$ 221,117	$ 160,076		$ 663,339	$ 471,825
Support, entitlements and other services	68,296	45,594		188,370	121,620
Total revenue	289,413	205,670		851,709	593,445
Cost of revenue:
Product	66,680	62,593		235,059	173,206
Support, entitlements and other services	28,935	20,613		77,706	56,608
Total cost of revenue	95,615	83,206		312,765	229,814
Gross profit	193,798	122,464		538,944	363,631
Operating expenses:
Sales and marketing	169,860	126,746		466,466	366,745
Research and development	81,291	74,607		216,727	220,802
General and administrative	24,929	15,610		56,929	60,463
Total operating expenses	276,080	216,963		740,122	648,010
Loss from operations	(82,282)	(94,499)		(201,178)	(284,379)
Other income (expense), net	(4,235)	303		(5,285)	(25,830)
Loss before provision for income taxes	(86,517)	(94,196)		(206,463)	(310,209)
Provision for (benefit from) income taxes	(843)	2,639		3,329	3,297
Net loss	$ (85,674)	$ (96,835)	[2]	$ (209,792)	$ (313,506)	[2],[3]
Net loss per share attributable to common stockholders—basic and diluted (in dollars per share)	$ (0.51)	$ (0.67)		$ (1.30)	$ (2.62)
Weighted-average shares used in computing net loss per share attributable to common stockholders—basic and diluted (in shares)	166,845,544	144,054,432		161,709,365	119,851,586
[1]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.
[2]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.
[3]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

CONDENSED CONSOLIDATED STATEME5

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Apr. 30, 2018	Apr. 30, 2017	[1]	Apr. 30, 2018	Apr. 30, 2017
Statement of Comprehensive Income [Abstract]
Net loss	$ (85,674)	$ (96,835)	[2]	$ (209,792)	$ (313,506)	[1],[2],[3]
Other comprehensive loss, net of tax:
Change in unrealized gain (loss) on available-for-sale securities, net of tax	(517)	74		(1,131)	(84)	[1]
Comprehensive loss	$ (86,191)	$ (96,761)		$ (210,923)	$ (313,590)
[1]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.
[2]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.
[3]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

CONDENSED CONSOLIDATED STATEME6

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Apr. 30, 2018		Apr. 30, 2017	[2]
Cash flows from operating activities:
Net loss	$ (209,792)		$ (313,506)	[1],[3]
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	36,013		27,934
Stock-based compensation	122,472		193,686
Loss on debt extinguishment	0		3,320
Change in fair value of convertible preferred stock warrant liability	0		21,133
Change in fair value of contingent consideration	(3,371)		176
Amortization of debt discount and issuance cost	7,654		0
Other	(186)		601
Changes in operating assets and liabilities:
Accounts receivable, net	(15,307)		(58,841)
Deferred commissions	(29,201)		(14,688)
Prepaid expenses and other assets	(5,327)		(29,628)
Accounts payable	(6,407)		32,468
Accrued compensation and benefits	3,700		32,000
Accrued expenses and other liabilities	(1,147)		5,399
Deferred revenue	170,709		107,849
Net cash provided by operating activities	69,810		7,903
Cash flows from investing activities:
Purchases of property and equipment	(46,089)		(37,797)
Purchases of investments	(485,777)		(156,420)
Maturities of investments	147,868		59,542
Sales of investments	0		32,640
Payments for business combinations, net of cash acquired	(22,792)		(184)
Net cash used in investing activities	(406,790)		(102,219)
Cash flows from financing activities:
Proceeds from issuance of convertible senior notes, net	563,937		0
Proceeds from issuance of warrants	87,975		0
Payments for convertible note hedges	(143,175)		0
Proceeds from sales of shares through employee equity incentive plans, net of repurchases	68,186		26,662
Proceeds from initial public offering, net of underwriting discounts and commissions	0		254,455
Payments of offering costs	(85)		(1,609)
Repayment of senior notes	0		(75,000)
Debt extinguishment costs	0		(1,580)
Payment of debt in conjunction with business combinations	(1,428)		(7,124)
Other	0		77
Net cash provided by financing activities	575,410		195,881
Net increase in cash and cash equivalents	238,430		101,565
Cash and cash equivalents—beginning of period	138,359	[4]	99,209
Cash and cash equivalents—end of period	376,789		200,774
Supplemental disclosures of cash flow information:
Cash paid for income taxes	8,038		3,559
Cash paid for interest	0		1,271
Supplemental disclosures of non-cash investing and financing information:
Issuance of common stock for business combinations	63,780		27,063
Purchases of property and equipment included in accounts payable and accrued liabilities	9,285		4,496
Convertible senior notes offering costs included in accounts payable and accrued liabilities	425		0
Vesting of early exercised stock options	570		1,293
Offering costs included in accounts payable	0		51
Conversion of convertible preferred stock to common stock, net of issuance costs	0		310,379
Reclassification of convertible preferred stock warrant liability to additional paid-in capital	$ 0		$ 30,812
[1]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.
[2]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.
[3]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.
[4]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

BASIS OF PRESENTATION AND SUMMA

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	9 Months Ended
	Apr. 30, 2018
Accounting Policies [Abstract]
BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	BASIS OF PRESENTATION 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, "we," "us" or "our") has operations throughout North America, Europe, Asia-Pacific, the Middle East, Latin America, and Africa. Our enterprise cloud operating system converges the traditional silos of server, virtualization, storage, and networking into one integrated solution and unifies private and public cloud into a single software fabric. We primarily sell our products and services to end customers through distributors, resellers and original equipment manufacturers ("OEMs") (collectively, "Partners"). Principles of Consolidation and Significant Accounting Policies The accompanying condensed consolidated financial statements, which include the accounts of Nutanix, Inc. and our wholly-owned subsidiaries, have been prepared in conformity with accounting principles generally accepted in the United States ("U.S. GAAP"), and, except for the impact of the adoption of the new accounting guidance related to revenue recognition, are consistent in all material respects with those included in our Annual Report on Form 10-K for the fiscal year ended July 31, 2017, filed with the Securities and Exchange Commission ("SEC"), on September 18, 2017. All intercompany accounts and transactions have been eliminated in consolidation. The condensed consolidated financial statements are unaudited, but include all adjustments of a normal recurring nature necessary for a fair presentation of our quarterly results. Certain reclassifications have been made to the prior year financial statements to conform to the current year presentation. These reclassifications had no impact on our previously reported net loss or accumulated deficit. Effective August 1, 2017, we adopted Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with Customers ("ASC 606"), as discussed in detail in Note 3. All amounts and disclosures set forth in this Quarterly Report on Form 10-Q have been updated to comply with ASC 606, as indicated by the "as adjusted" footnote. Certain prior period amounts have been adjusted as a result of our early adoption of ASC 606. Refer to "Summary of Significant Accounting Policies" and "Recent Accounting Pronouncements" below for more information. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes in our Annual Report on Form 10-K for the fiscal year ended July 31, 2017. Use of Estimates The preparation of interim 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 estimate of standalone selling prices for products and related support; determination of fair value of stock-based awards; 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; fair value of debt and equity components related to our convertible senior notes; 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 of Risk Concentration of revenue and accounts receivable —We sell our products primarily through Partners and occasionally directly to end customers. For the three and nine months ended April 30, 2017 and 2018 , 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 Nine Months Ended Partners 2017 As Adjusted (2) 2018 2017 As Adjusted (2) 2018 July 31, 2017 April 30, 2018 Partner A (1) (1) 10 % 10 % (1) (1) Partner B 18 % 15 % 18 % 20 % 12 % (1) Partner C 18 % 18 % 16 % 17 % 14 % 18 % Partner D (1) (1) (1) 10 % 20 % 15 % Partner E (1) (1) (1) (1) (1) (1) Partner F 17 % 13 % 14 % 13 % 18 % 15 % (1) Less than 10% (2) Adjusted to include the impact of ASC 606. Refer to Note 3 for more details on the impact of the adoption of this standard. Summary of Significant Accounting Policies Except for the accounting policies for revenue recognition, deferred revenue and deferred commissions that were updated as a result of adopting ASC 606 and those related to our 0% Convertible Senior Notes due in 2023 (the "Notes"), there have been no changes to our significant accounting policies described in our Annual Report on Form 10-K for the fiscal year ended July 31, 2017, filed with the SEC on September 18, 2017, that have had a material impact on our condensed consolidated financial statements and related notes. See Note 3 for a summary of our new accounting policies under ASC 606. Recently Adopted Accounting Pronouncements In May 2014, the Financial Accounting Standards Board ("FASB"), issued ASC 606. The standard is a comprehensive new revenue recognition model that requires revenue to be recognized in a manner which depicts 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 the 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 would have been effective for us beginning August 1, 2018, but early adoption as of the original effective date of August 1, 2017 was also permitted. We elected to early adopt the standard effective August 1, 2017 using the full retrospective method, which required us to recast our historical financial information to conform with the new standard. Refer to Note 3 for details of the impact to previously reported results. In May 2017, the FASB issued ASU 2017-09, Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting, which provides guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. The guidance is effective for annual periods beginning after December 15, 2017, with early adoption permitted, including adoption in any interim period for which financial statements have not yet been issued. We adopted this ASU effective August 1, 2017 and our adoption did not have a material impact on our condensed consolidated financial statements. 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. We adopted this ASU effective August 1, 2017 and our adoption did not have a material impact on our condensed 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 fiscal years beginning after December 15, 2017, including interim periods within those fiscal years, with early adoption permitted. We adopted this ASU effective November 1, 2017 and our adoption did not have any impact on our condensed consolidated financial statements. In January 2016, the FASB issued ASU 2016-01, Financial Instruments-Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities, which addresses certain aspects of recognition, measurement, presentation, and disclosure of financial instruments, with further clarifications made recently with the issuance of ASU 2018-03 and 2018-04. These new standards require equity securities to be measured at fair value with changes in fair value recognized through net income, which results in greater variability in our net income. We adopted the standard on January 1, 2018 and our adoption did not have any impact on our condensed consolidated financial statements since other than our investments in money market funds, which are reported as part of cash and cash equivalents, we do not have any other investments that are classified as equity securities. There are no unrealized gains or losses related to our investments in money market funds, as the fair value is equal to the face value. Recently Issued and Not Yet Adopted Accounting Pronouncements In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash. This new standard requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. Therefore, amounts generally described as restricted cash or restricted cash equivalents should be included with cash and cash equivalents when reconciling beginning-of-period and end-of-period amounts shown on the statement of cash flows. ASU 2016-18 is effective for us beginning August 1, 2018, with early adoption permitted. We do not believe that adoption of this ASU will have a material impact on our condensed consolidated financial statements. In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory. This new standard will require us 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 us beginning August 1, 2018, with early adoption permitted. We are currently evaluating the effect the adoption of this guidance will have on our condensed 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, except for short-term leases, on the balance sheet of lessees. ASU 2016-02 is effective for us beginning August 1, 2019, with early adoption permitted. This new standard requires a modified retrospective transition approach and provides certain optional transition relief. We currently anticipate that the adoption of this standard will have a material impact on our condensed consolidated balance sheets, given that we had operating lease commitments in excess of $100 million

BUSINESS COMBINATIONS

BUSINESS COMBINATIONS	9 Months Ended
	Apr. 30, 2018
Business Combinations [Abstract]
BUSINESS COMBINATIONS	BUSINESS COMBINATIONS During the three and nine months ended April 30, 2018, we completed two acquisitions. The purchase price allocation for these acquisitions, discussed in detail below, reflects various preliminary fair value estimates and analyses, including certain tangible assets acquired and liabilities assumed, the valuation of intangible assets acquired, income taxes, and goodwill, which are subject to change within the measurement period as preliminary valuations are finalized. Measurement period adjustments are recorded in the reporting period in which the estimates are finalized and adjustment amounts are determined. We determined the fair values of the intangible assets with the assistance of a valuation firm. The estimation of the fair value of the intangible assets required the use of valuation techniques and entailed consideration of all the relevant factors that might affect the fair value, such as present value factors and estimates of future revenues and costs. Our condensed consolidated financial statements for the three and nine months ended April 30, 2018 include the operations of the acquired companies from the dates the deals closed. Pro forma results of operations for these acquisitions have not been presented because they are not material to our consolidated financial statements, either individually or in the aggregate. Goodwill represents the excess of the purchase price over the fair value of the net tangible and intangible assets acquired. The goodwill recognized in these acquisitions is primarily attributable to the synergies expected from the expanded market opportunities with our offerings and the knowledgeable and experienced workforce that joined us as part of the acquisitions. Goodwill will not be amortized, but will instead be tested for impairment annually or more frequently if certain indicators of impairment are present. Goodwill is not expected to be deductible for income tax purposes. Minjar, Inc. On March 16, 2018, we completed the acquisition of Minjar, Inc. ("Minjar"), a privately held Delaware corporation with its offices in Bangalore, India. Minjar is a cloud technology solutions company, and the acquisition will complement and enhance our products, allowing us to offer customers new capabilities to better manage their multi-cloud deployments. At the close of the acquisition, all outstanding shares of Minjar capital stock and all in-the-money options and warrants to purchase Minjar capital stock were purchased or canceled in exchange for an aggregate purchase price of approximately $19.9 million , consisting of $19.4 million in cash and approximately $0.5 million of holdback liability. The holdback liability represents deferred payments to Minjar's founders to be released in installments during the two years following the date of acquisition. As the release of these deferred payments is not contingent upon the future and continued service of the founders, the $0.5 million holdback liability, which approximates fair value, was considered as part of the purchase price. Certain portions of the consideration for the acquisition have been placed in escrow to secure the indemnification obligations of certain Minjar security holders. In addition to the $19.9 million purchase price, we also entered into employee holdback or deferred payment arrangements with former employees of Minjar who joined us after the acquisition, totaling approximately $3.9 million . As payment of these deferred payments is contingent upon the continuous service of the employees, they are being accounted for as compensation over the required service period of two years . The preliminary purchase price allocation primarily includes approximately $18.6 million of goodwill, $7.0 million of intangible assets, which primarily consists of approximately $5.6 million related to developed technology and $1.4 million related to customer relationships, both of which will be amortized over an estimated economic life of five years , and $5.7 million of deferred income tax and other tax liabilities. We recognized approximately $0.6 million of acquisition-related costs, which were expensed as incurred, as general and administrative expenses on our condensed consolidated statement of operations during the nine months ended April 30, 2018. Netsil Inc. On March 22, 2018, we completed the acquisition of Netsil Inc. ("Netsil"), a privately held Delaware corporation headquartered in San Francisco, California. This acquisition represents an opportunity for us to accelerate our ability to deliver native multi-cloud operations with the addition of application discovery and operations management . The aggregate purchase price of approximately $67.5 million consisted of approximately $3.7 million in cash and 1,206,364 unregistered shares of our Class A common stock with an aggregate fair value of approximately $63.8 million . The fair value of the shares of common stock issued was determined to be $52.87 per share, the closing price of our stock on March 22, 2018. Certain portions of the consideration for the acquisition, both cash and shares of our Class A common stock, have been placed in escrow to secure the indemnification obligations of certain Netsil security holders. We also entered into employee holdback or deferred payment arrangements with the founders of Netsil who joined us after the acquisition, whereby we issued 104,426 unregistered shares of our Class A common stock to the founders subject to their continuous employment with us for two years . The fair value of the Class A common stock issued pursuant to the holdback arrangements was approximately $5.5 million , or $52.87 per share, the closing price of our Class A common stock on March 22, 2018. This holdback is being accounted for as stock-based compensation over the required two -year service period. The preliminary purchase price allocation primarily includes approximately $53.1 million of goodwill, $19.0 million of intangible assets, primarily related to developed technology, which will be amortized over an estimated economic life of seven years , $2.6 million of deferred income tax liabilities, and $1.4 million of assumed debt. We recognized approximately $0.4 million of acquisition-related costs, which were expensed as incurred, as general and administrative expenses on our condensed consolidated statement of operations during the nine months ended April 30, 2018. The following table presents the preliminary aggregate purchase price allocation related to our acquisitions of Minjar and Netsil as of April 30, 2018 : Estimated Fair Value (in thousands) Goodwill $ 71,652 Amortizable intangible assets 25,920 Tangible assets acquired 842 Liabilities assumed (11,041 ) Total consideration $ 87,373

REVENUE, DEFERRED REVENUE AND D

REVENUE, DEFERRED REVENUE AND DEFERRED COMMISSIONS	9 Months Ended
	Apr. 30, 2018
Revenue Recognition and Deferred Revenue [Abstract]
REVENUE, DEFERRED REVENUE AND DEFERRED COMMISSIONS	ue Recognition Effective August 1, 2017, we adopted ASC 606 using the full retrospective method, which required us to recast our historical financial information to conform with the standard. The most significant impact of ASC 606 on our historical financial information relates to the timing of revenue recognition for certain software licenses sold with post-contract customer support ("PCS"), for which we did not have vendor specific objective evidence, ("VSOE"), of fair value under the previous revenue recognition guidance. Under ASC 606, the requirement to have VSOE for undelivered elements is eliminated and we now recognize revenue for such software licenses upon transfer of control to our customers. In addition, the adoption of ASC 606 also resulted in differences in the timing of recognition of contract costs, such as sales commissions, as well as the corresponding impact to our provision for income taxes. The adoption of the standard had no significant impact on our provision for income taxes and had no impact on the net cash from or used in operating, investing or financing activities on our condensed consolidated statements of cash flows. See "ASC 606 Adoption Impact to Previously Reported Results" below for the impact of the adoption of the standard on our consolidated balance sheet and condensed consolidated statements of operations. ASC 606 Adoption Impact to Previously Reported Results We adjusted our condensed consolidated financial statements from amounts previously reported due to the adoption of ASC 606. Selected consolidated balance sheet line items, adjusted for the adoption of ASC 606, are as follows: As of July 31, 2017 As Previously Reported Impact of Adoption As Adjusted (in thousands) Assets Deferred commissions — current $ 27,679 $ (3,836 ) (1) $ 23,843 Deferred commissions — non-current 33,709 15,975 (1) 49,684 Total deferred commissions $ 61,388 $ 12,139 $ 73,527 Liabilities Deferred revenue — current $ 233,498 $ (63,375 ) (2) $ 170,123 Deferred revenue — non-current 292,573 (93,640 ) (2) 198,933 Total deferred revenue $ 526,071 $ (157,015 ) $ 369,056 Accrued expenses and other current liabilities $ 9,414 $ 293 (3) $ 9,707 Stockholders' Equity $ 48,202 $ 168,861 $ 217,063 (1) Impact of cumulative change in commissions expense (2) Impact of cumulative change in revenue (3) Impact of cumulative change in provision for income taxes Selected unaudited condensed consolidated statement of operations line items, adjusted for the adoption of ASC 606, are as follows: Three Months Ended April 30, 2017 As Previously Reported Impact of Adoption As Adjusted (in thousands, except per share data) Revenue Product $ 143,142 $ 16,934 $ 160,076 Support, entitlements and other services 48,621 (3,027 ) 45,594 Total revenue $ 191,763 $ 13,907 $ 205,670 Gross profit $ 108,557 $ 13,907 $ 122,464 Operating expenses Sales and marketing expenses $ 128,007 $ (1,261 ) $ 126,746 Loss from operations $ (109,667 ) $ 15,168 $ (94,499 ) Net loss $ (111,977 ) $ 15,142 $ (96,835 ) Basic and diluted net loss per share $ (0.78 ) $ 0.11 $ (0.67 ) Nine Months Ended April 30, 2017 As Previously Reported Impact of Adoption As Adjusted (in thousands, except per share data) Revenue Product $ 411,307 $ 60,518 $ 471,825 Support, entitlements and other services 129,460 (7,840 ) 121,620 Total revenue $ 540,767 $ 52,678 $ 593,445 Gross profit $ 310,953 $ 52,678 $ 363,631 Operating expenses Sales and marketing expenses $ 368,026 $ (1,281 ) $ 366,745 Loss from operations $ (338,338 ) $ 53,959 $ (284,379 ) Net loss $ (367,358 ) $ 53,852 $ (313,506 ) Basic and diluted net loss per share $ (3.07 ) $ 0.45 $ (2.62 ) Unaudited revenue by geographic location, based on bill-to location, adjusted for the adoption of ASC 606, is as follows: Three Months Ended April 30, 2017 As Previously Reported Impact of Adoption As Adjusted (in thousands) U.S. $ 112,218 $ 2,105 $ 114,323 Europe, the Middle East and Africa 38,023 1,248 39,271 Asia-Pacific 35,508 9,935 45,443 Other Americas 6,014 619 6,633 Total revenue $ 191,763 $ 13,907 $ 205,670 Nine Months Ended April 30, 2017 As Previously Reported Impact of Adoption As Adjusted (in thousands) U.S. $ 317,262 $ 8,271 $ 325,533 Europe, the Middle East and Africa 95,543 3,746 99,289 Asia-Pacific 101,798 39,435 141,233 Other Americas 26,164 1,226 27,390 Total revenue $ 540,767 $ 52,678 $ 593,445 Selected unaudited condensed consolidated statement of cash flows line items, adjusted for the adoption of ASC 606, are as follows: Nine Months Ended April 30, 2017 As Previously Reported Impact of Adoption As Adjusted (in thousands) Cash flows from operating activities: Net loss $ (367,358 ) $ 53,852 $ (313,506 ) Adjustments to reconcile net loss to net cash provided by operating activities: Deferred commissions $ (13,406 ) $ (1,282 ) $ (14,688 ) Accrued expenses and other liabilities $ 5,291 $ 108 $ 5,399 Deferred revenue $ 160,527 $ (52,678 ) $ 107,849 The core principle of ASC 606 is to recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration the entity expects to be entitled to in exchange for those goods or services. This principle is achieved by applying the following five-step approach: • Identification of the contract, or contracts, with a customer — A contract with a customer exists when (i) we enter into an enforceable contract with a customer that defines each party’s rights regarding the goods or services to be transferred and identifies the payment terms related to these goods or services, (ii) the contract has commercial substance and (iii) we determine that collection of substantially all consideration for goods or services that are transferred is probable based on the customer’s intent and ability to pay the promised consideration. We apply judgment in determining the customer’s ability and intention to pay, which is based on a variety of factors, including the customer’s historical payment experience or, in the case of a new customer, published credit and financial information pertaining to the customer. • Identification of the performance obligations in the contract — Performance obligations promised in a contract are identified based on the goods or services that will be transferred to the customer that are both capable of being distinct, whereby the customer can benefit from the goods or services either on their own or together with other resources that are readily available from third parties or from us, and are distinct in the context of the contract, whereby the transfer of the goods or services is separately identifiable from other promises in the contract. To the extent a contract includes multiple promised goods or services, we apply judgment to determine whether promised goods or services are capable of being distinct and distinct in the context of the contract. If these criteria are not met, the promised goods or services are accounted for as a combined performance obligation. • Determination of the transaction price — The transaction price is determined based on the consideration to which we will be entitled in exchange for transferring goods or services to the customer. • Allocation of the transaction price to the performance obligations in the contract — If the contract contains a single performance obligation, the entire transaction price is allocated to the single performance obligation. Contracts that contain multiple performance obligations require an allocation of the transaction price to each performance obligation based on a relative standalone selling price ("SSP"). We determine SSP based on the price at which the performance obligation is sold separately. If the SSP is not observable through past transactions, we estimate the SSP, taking into account available information such as market conditions and internally approved pricing guidelines related to the performance obligations. • Recognition of revenue when, or as, we satisfy a performance obligation — We satisfy performance obligations either over time or at a point in time, as discussed in further detail below. Revenue is recognized at the time the related performance obligation is satisfied with the transfer of a promised good or service to a customer. Disaggregation of Revenue We generate revenue from the sale of our software solution, which can be delivered on a hardware appliance or on a standalone basis, PCS and professional services. A substantial portion of our revenue is generated through channel partners, including distributors and resellers. We also sell our software solution through our OEM partners, such as Dell Technologies and Lenovo Group Ltd. These OEM partners embed our software in their own hardware, and we provide limited PCS on these transactions. The following table depicts the disaggregation of revenue by revenue type, consistent with how we evaluate our financial performance: Three Months Ended Nine Months Ended 2017 2018 2017 2018 (in thousands) Software revenue $ 100,810 $ 158,500 $ 308,400 $ 441,885 Hardware revenue 59,266 62,617 163,425 221,454 Support, entitlements and other services revenue 45,594 68,296 121,620 188,370 Total revenue $ 205,670 $ 289,413 $ 593,445 $ 851,709 Software revenue — A majority of our product revenue is generated from the sale of our software, which is either delivered on a hardware appliance that is configured to order, or delivered as standalone software, which can be installed on our customers' hardware appliances that are typically purchased separately from an OEM partner or other manufacturers of compatible hardware, including our contract manufacturers. Software revenue includes our base operating system, which can be delivered through different platforms, and licenses to other additional features, which are sold by us. Revenue from our software products is generally recognized upon transfer of control to the customer. Hardware revenue — In transactions where we deliver the hardware appliance, we consider ourselves to be the principal in the transaction and we record revenue and costs of goods sold on a gross basis. We consider the amount allocated to hardware revenue to be equivalent to the cost of the hardware procured. Hardware revenue is generally recognized upon transfer of control to the customer. Support, entitlements and other services revenue — We generate our support, entitlements and other services revenue primarily from PCS contracts, and, to a lesser extent, from professional services. The majority of our product sales are sold in conjunction with PCS contracts, with terms ranging from one to five years. We recognize revenue from PCS contracts ratably over the contractual service period. The service period typically commences upon transfer of control of the corresponding products to the customer. We recognize revenue related to professional services as they are performed. Contracts with multiple performance obligations — Some of our contracts with customers contain multiple performance obligations. For these contracts, we account for individual performance obligations separately if they are distinct. The transaction price is allocated to the separate performance obligations on a relative SSP basis. For deliverables that we routinely sell separately, such as support and maintenance on our core offerings, we determine SSP by evaluating the standalone sales over the trailing 12 months. For those that are not sold routinely, we determine SSP based on our overall pricing trends and objectives, taking into consideration market conditions and other factors, including the value of our contracts, the products sold and geographic locations. Contract balances — The timing of revenue recognition may differ from the timing of invoicing to customers. Accounts receivable are recorded at the invoiced amount, net of an allowance for doubtful accounts. A receivable is recognized in the period we deliver goods or provide services, or when our right to consideration is unconditional. Payment terms on invoiced amounts are typically 30 days. The balance of accounts receivable, net of allowance for doubtful accounts, as of July 31, 2017 and April 30, 2018 is presented in the accompanying condensed consolidated balance sheets. Costs to obtain and fulfill a contract — We capitalize commissions paid to sales personnel and the related payroll taxes when customer contracts are signed. These costs are recorded as deferred commission expense in the condensed consolidated balance sheets, current and non-current. We determine whether costs should be deferred based on our sales compensation plans, if the commissions are incremental and would not have been incurred absent the execution of the customer contract. Sales commissions for renewals of customer contracts are not commensurate with the commissions paid for the acquisition of the initial contract given the substantive difference in commission rates in proportion to thei r respective contract values. Commissions paid upon the initial acquisition of a contract are amortized over the estimated period of benefit, which may exceed the term of the initial contract. Accordingly, the amortization of deferred costs is recognized on a systematic basis that is consistent with the pattern of revenue recognition allocated to each performance obligation and included in sales and marketing expense in the condensed consolidated statements of operations. We determine the estimated period of benefit by evaluating the expected renewals of our customer contracts, the duration of our relationships with our customers, customer retention data, our technology development lifecycle, and other factors. Deferred costs are periodically reviewed for impairment. Deferred revenue — We record deferred revenue when cash payments are received in advance of our performance. The current portion of deferred revenue represents the amounts that are expected to be recognized as revenue within one year of the consolidated balance sheet date. Significant changes in the balance of deferred revenue (contract liability) and total deferred commissions (contract asset) for the periods presented are as follows: Three Months Ended Deferred Revenue Deferred Commissions (in thousands) Balance as of January 31, 2018 $ 478,000 $ 99,628 Additions 130,061 30,755 Revenue/commissions recognized (68,296 ) (27,655 ) Assumed in a business combination 124 — Balance as of April 30, 2018 $ 539,889 $ 102,728 Nine Months Ended Deferred Revenue Deferred Commissions (in thousands) Balance as of July 31, 2017 (1) $ 369,056 $ 73,527 Additions 359,079 110,344 Revenue/commissions recognized (188,370 ) (81,143 ) Assumed in a business combination 124 — Balance as of April 30, 2018 $ 539,889 $ 102,728 (1) See details above for the summary of adjustments to deferred commissions and deferred revenue as a result of the adoption of ASC 606. Of the $102.7 million deferred commissions balance as of April 30, 2018 , we expect to recognize approximately 30% as commission expense over the next 12 months, and the remainder thereafter. During the three and nine months ended April 30, 2017 , we recognized revenue of approximately $38.8 million and $77.9 million pertaining to amounts deferred as of January 31, 2017 and July 31, 2016, respectively. During the three and nine months ended April 30, 2018 , we recognized revenue of approximately $49.4 million and $136.8 million pertaining to amounts deferred as of January 31, 2018 and July 31, 2017, respectively. The majority of our contracted but not invoiced performance obligations are subject to cancellation terms. Revenue allocated to remaining performance obligations represents contracted revenue that has not yet been recognized ("contracted not recognized"), which includes deferred revenue and non-cancelable amounts that will be invoiced and recognized as revenue in future periods and excludes performance obligations that are subject to cancellation terms. Contracted not recognized revenue was approximately $567.1 million as of April 30, 2018 , of which we expect to recognize approximately 46%

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	9 Months Ended
	Apr. 30, 2018
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS	FAIR VALUE MEASUREMENTS The fair value of our financial assets and liabilities measured on a recurring basis is as follows: As of July 31, 2017 Level I Level II Level III Total (in thousands) Financial Assets: Cash equivalents: Money market funds $ 34,784 $ — $ — $ 34,784 Commercial paper — 23,041 — 23,041 Short-term investments: Corporate bonds — 160,634 — 160,634 Commercial paper — 36,084 — 36,084 U.S. government securities — 13,976 — 13,976 Total measured at fair value $ 34,784 $ 233,735 $ — $ 268,519 Cash 80,534 Total cash, cash equivalents and short-term investments $ 349,053 Financial Liabilities: Contingent consideration $ — $ — $ 4,295 $ 4,295 As of April 30, 2018 Level I Level II Level III Total (in thousands) Financial Assets: Cash equivalents: Money market funds $ 95,258 $ — $ — $ 95,258 Commercial paper — 108,253 — 108,253 Corporate bonds — 4,000 — 4,000 Short-term investments: Corporate bonds — 395,107 — 395,107 Commercial paper — 118,939 — 118,939 U.S. government securities — 32,629 — 32,629 Total measured at fair value $ 95,258 $ 658,928 $ — $ 754,186 Cash 169,278 Total cash, cash equivalents and short-term investments $ 923,464 Financial Liabilities: Contingent consideration $ — $ — $ 924 $ 924 Financial Instruments Not Recorded at Fair Value on a Recurring Basis We report our financial instruments at fair value, with the exception of the Notes. Financial instruments that are not recorded at fair value are measured at fair value on a quarterly basis for disclosure purposes. The carrying values and estimated fair values of financial instruments not recorded at fair value are as follows: As of July 31, 2017 As of April 30, 2018 Carrying Value Estimated Fair Value Carrying Value Estimated Fair Value (in thousands) Convertible senior notes, net $ — $ — $ 422,567 $ 714,535 The carrying value of the Notes as of April 30, 2018 was net of the unamortized debt discount of $144.4 million and unamortized debt issuance costs of $8.1 million . The total estimated fair value of the Notes was determined based on the closing trading price per $100 of the Notes as of the last day of trading for the period. We consider the fair value of the Notes to be a Level 2 measurement due to the limited trading activity of the Notes. A summary of the changes in the fair value of our contingent consideration, categorized as Level 3 in the fair value hierarchy, is as follows: Nine Months Ended 2017 2018 (in thousands) Contingent consideration—beginning balance $ — $ 4,295 Assumed in a business combination 2,371 — Change in fair value (1) 176 (3,371 ) Contingent consideration—ending balance $ 2,547 $ 924 (1) Recorded in the condensed consolidated statements of operations within general and administrative expenses.

BALANCE SHEET COMPONENTS

BALANCE SHEET COMPONENTS	9 Months Ended
	Apr. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
BALANCE SHEET COMPONENTS	BALANCE SHEET COMPONENTS Short-Term Investments The amortized cost of our short-term investments approximates their fair value. As of July 31, 2017 and April 30, 2018 , unrealized gains or losses from our short-term investments were immaterial. Unrealized losses related to our short-term investments are due to interest rate fluctuations, as opposed to credit quality. In addition, unless we need cash to support our current operations, we do not intend to sell and it is not likely that we would be required to sell these investments before recovery of their amortized cost basis, which may be at maturity. As a result, there were no other-than-temporary impairments for these investments at July 31, 2017 or April 30, 2018 . The following table summarizes the estimated fair value of our investments in marketable debt securities by their contractual maturity dates: As of April 30, 2018 (in thousands) Due within one year $ 405,385 Due in one year through three years 141,290 Total $ 546,675 Property and Equipment, Net Property and equipment, net consists of the following: Estimated As of July 31, 2017 April 30, 2018 (in months) (in thousands) Computer, production, engineering, and other equipment 36 $ 85,280 $ 117,403 Demonstration units 12 46,387 52,508 Leasehold improvements (1) N/A 10,562 17,549 Furniture and fixtures 60 4,744 6,535 Total property and equipment, gross 146,973 193,995 Less: Accumulated depreciation and amortization (88,901 ) (117,673 ) Total property and equipment, net $ 58,072 $ 76,322 (1) Leasehold improvements are amortized over the shorter of the estimated useful lives of the improvements or the remaining lease term. Depreciation expense related to our property and equipment was $9.2 million and $11.3 million for the three months ended April 30, 2017 and 2018 , respectively, and was $26.3 million and $31.9 million for the nine months ended April 30, 2017 and 2018 , respectively. Goodwill and Intangible Assets, Net The changes in the carrying value of goodwill during the nine months ended April 30, 2018 are as follows: Carrying Amount (in thousands) Balance as of July 31, 2017 $ 16,672 Acquired in Netsil acquisition 53,085 Acquired in Minjar acquisition 18,567 Balance as of April 30, 2018 $ 88,324 Intangible assets, net consists of the following: As of July 31, 2017 April 30, 2018 (in thousands) Indefinite-lived intangible asset: In-process R&D (1) $ 16,100 $ — Finite-lived intangible assets: Developed technology (1) 7,300 47,500 Customer relationships 4,830 6,650 Total finite-lived intangible assets, gross 12,130 54,150 Total intangible assets, gross 28,230 54,150 Less: Accumulated amortization of developed technology (1,314 ) (4,821 ) Accumulated amortization of customer relationships (915 ) (1,539 ) Total accumulated amortization (2,229 ) (6,360 ) Intangible assets, net $ 26,001 $ 47,790 (1) We started amortizing in-process R&D during the first quarter of fiscal 2018, as the related technology was completed and released in the first quarter of fiscal 2018. We are amortizing developed technology using the straight-line method over a useful life of 5 years. Based on the foregoing, the balance of in-process R&D is now presented as part of developed technology as of April 30, 2018. The amortization expense related to our finite-lived intangible assets is being recognized in the condensed consolidated statements of operations within product cost of revenue for developed technology and sales and marketing expense for customer relationships. The estimated future amortization expense of our finite-lived intangible assets is as follows: Year Ending July 31: Amount (in thousands) 2018 (remaining three months) $ 2,237 2019 8,989 2020 8,949 2021 8,949 2022 7,751 Thereafter 10,915 Total $ 47,790 Accrued Compensation and Benefits Accrued compensation and benefits consists of the following: As of July 31, 2017 April 30, 2018 (in thousands) Accrued commissions $ 20,388 $ 16,767 Accrued vacation 6,286 10,100 Contributions to ESPP withheld 14,371 7,581 Accrued bonus 7,342 9,187 Payroll taxes payable 3,434 8,627 Other 5,700 8,959 Total accrued compensation and benefits $ 57,521 $ 61,221 Accrued Expenses and Other Current Liabilities Accrued expenses and other current liabilities consists of the following: As of July 31, 2017 April 30, 2018 (in thousands) Accrued professional services $ 4,167 $ 4,614 Income taxes payable (1) 3,873 2,903 Other 1,667 4,128 Total accrued expenses and other current liabilities $ 9,707 $ 11,645 (1)

CONVERTIBLE SENIOR NOTES

CONVERTIBLE SENIOR NOTES	9 Months Ended
	Apr. 30, 2018
Debt Disclosure [Abstract]
CONVERTIBLE SENIOR NOTES	CONVERTIBLE SENIOR NOTES In January 2018, we issued $575.0 million in aggregate principal amount of 0% Convertible Senior Notes, due in 2023, in a private placement to qualified institutional buyers pursuant to Rule144A under the Securities Act of 1933, as amended. This included $75.0 million in aggregate principal amount of the Notes that we issued resulting from initial purchasers fully exercising their option to purchase additional notes. There are no required principal payments prior to the maturity of the Notes. The total net proceeds from the Notes are as follows: Amount (in thousands) Principal amount $ 575,000 Less: initial purchasers' discount (10,781 ) Less: cost of the bond hedges (143,175 ) Add: proceeds from the sale of warrants 87,975 Less: other issuance costs (707 ) Net proceeds $ 508,312 Other issuance costs of $0.4 million remained unpaid as of April 30, 2018. The Notes do not bear any interest and will mature on January 15, 2023, unless earlier converted or repurchased in accordance with their terms. The Notes are unsecured and do not contain any financial covenants or any restrictions on the payment of dividends, or the issuance or repurchase of securities by us. Each $1,000 of principal of the Notes will initially be convertible into 20.4705 shares of our Class A common stock, which is equivalent to an initial conversion price of approximately $48.85 per share, subject to adjustment upon the occurrence of specified events. Holders of these Notes may convert their Notes at their option at any time prior to the close of the business day immediately preceding October 15, 2022, only under the following circumstances: 1) during any fiscal quarter commencing after the fiscal quarter ending on April 30, 2018 (and only during such fiscal quarter), if the last reported sale price of our Class A common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding fiscal quarter, is greater than or equal to 130% of the conversion price on each applicable trading day; 2) during the five business day period after any five consecutive trading day period (the "measurement period") in which the trading price per $1,000 principal amount of Notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of our Class A common stock and the conversion rate for the Notes on each such trading day; or 3) upon the occurrence of certain specified corporate events. Based on the closing price of our Class A common stock of $50.59 on April 30, 2018 , the if-converted value of the Notes was greater than the principal amount. However, since the price of our Class A common stock was not greater than or equal to 130% of the conversion price for 20 or more trading days during the 30 consecutive trading days ending on the last trading day of the quarter ended April 30, 2018, the Notes are not convertible during the fiscal quarter commencing after April 30, 2018. On or after October 15, 2022, holders may convert all or any portion of their Notes at any time prior to the close of business on the second scheduled trading day immediately preceding the maturity date, regardless of the foregoing conditions. Upon conversion of the Notes, we will pay or deliver, as the case may be, cash, shares of our Class A common stock or a combination of cash and shares of our Class A common stock, at our election. We intend to settle the principal of the Notes in cash. The conversion rate will be subject to adjustment in some events but will not be adjusted for any accrued or unpaid interest. A holder who converts their Notes in connection with certain corporate events that constitute a "make-whole fundamental change" per the indenture governing the Notes are, under certain circumstances, entitled to an increase in the conversion rate. In addition, if we undergo a fundamental change prior to the maturity date, holders may require us to repurchase for cash all or a portion of their Notes at a repurchase price equal to 100% of the principal amount of the repurchased Notes, plus accrued and unpaid interest. We may not redeem the Notes prior to the maturity date, and no sinking fund is provided for the Notes. In accounting for the issuance of the Notes, we separated the Notes into liability and equity components. The carrying amount of the liability component of approximately $423.4 million was calculated by measuring the fair value of a similar liability that does not have an associated convertible feature. The carrying amount of the equity component of approximately $151.6 million , representing the conversion option, was determined by deducting the fair value of the liability component from the par value of the Notes. The difference between the principal amount of the Notes and the liability component (the "debt discount") is amortized to interest expense using the effective interest method over the term of the Notes. The equity component of the Notes is included in additional paid-in capital in the condensed consolidated balance sheets and is not remeasured as long as it continues to meet the conditions for equity classification. We incurred transaction costs related to the issuance of the Notes of approximately $11.5 million , consisting of an initial purchasers' discount of $10.8 million and other issuance costs of approximately $0.7 million . In accounting for the transaction costs, we allocated the total amount incurred to the liability and equity components using the same proportions as the proceeds from the Notes. Transaction costs attributable to the liability component were approximately $8.5 million , recorded as debt issuance costs (presented as contra debt in the condensed consolidated balance sheets), and are being amortized to interest expense over the term of the Notes. The transaction costs attributable to the equity component were approximately $3.0 million and were net with the equity component within stockholders’ equity. The Notes consisted of the following: As of April 30, 2018 (in thousands) Principal amounts: Principal $ 575,000 Unamortized debt discount (1) (144,378 ) Unamortized debt issuance costs (1) (8,055 ) Net carrying amount $ 422,567 Carrying amount of the equity component (2) $ 148,598 (1) Included in the condensed consolidated balance sheets within "Convertible senior notes, net" and amortized over the remaining life of the Notes using the effective interest rate method. The effective interest rate is 6.62% . (2) Included in the condensed consolidated balance sheets within additional paid-in capital, net of $3.0 million in equity issuance costs. As of April 30, 2018, the remaining life of the Notes was approximately 56 months. The following table sets forth the total interest expense recognized related to the Notes: Three Months Ended Nine Months Ended (in thousands) Interest expense related to amortization of debt discount $ 6,550 $ 7,250 Interest expense related to amortization of debt issuance costs 366 404 Total interest expense $ 6,916 $ 7,654 Note Hedges and Warrants Concurrently with the offering of the Notes in January 2018, we entered into convertible note hedge transactions with certain bank counterparties, whereby we have the initial option to purchase a total of approximately 11.8 million shares of our Class A common stock at a conversion price of approximately $48.85 per share, subject to adjustment for certain specified events. The total cost of the convertible note hedge transactions was approximately $143.2 million . In addition, we sold warrants to certain bank counterparties, whereby the holders of the warrants have the initial option to purchase a total of approximately 11.8 million shares of our Class A common stock at a price of $73.46 per share, subject to adjustment for certain specified events. We received approximately $88.0 million in cash proceeds from the sale of these warrants. Taken together, the purchase of the convertible note hedges and the sale of warrants are intended to offset any actual dilution from the conversion of the Notes and to effectively increase the overall conversion price from $48.85 to $73.46 per share. As these transactions meet certain accounting criteria, the convertible note hedges and warrants are recorded within stockholders’ equity and are not accounted for as derivatives. The net cost incurred in connection with the convertible note hedge and warrant transactions of approximately $55.2 million is recorded as a reduction to additional paid-in capital in the condensed consolidated balance sheet as of April 30, 2018. The fair value of the note hedges and warrants are not remeasured each reporting period. The amounts paid for the note hedges are tax deductible expenses, while the proceeds received from the warrants are not taxable. Impact to Earnings per Share The Notes will have no impact to diluted earnings per share ("EPS") until they meet the criteria for conversion, as discussed above, as we intend to settle the principal amount of the Notes in cash upon conversion. Under the treasury stock method, in periods we report net income, we are required to include the effect of additional shares that may be issued under the Notes when the price of our Class A common stock exceeds the conversion price. Under this method, the cumulative dilutive effect of the Notes would be approximately 3.9 million shares if the average price of our Class A common stock was $73.46 . However, upon conversion, there will be no economic dilution from the Notes, as exercise of the note hedges eliminate any dilution that would have otherwise occurred. The note hedges are required to be excluded from the calculation of diluted earnings per share, as they would be anti-dilutive under the treasury stock method. The warrants will have a dilutive effect when the average share price exceeds the warrant strike price of $73.46 per share. As the price of our Class A common stock continues to increase above the warrant strike price, additional dilution would occur at a declining rate so that a $10 increase from the warrant strike price would yield a cumulative dilution of approximately 4.9 million diluted shares for EPS purposes. However, upon conversion, the note hedges would neutralize the dilution from the Notes so that there would only be dilution from the warrants, which would result in an actual dilution of approximately 1.4 million shares at a common stock price of $83.46

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	9 Months Ended
	Apr. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Operating Leases We have commitments for future payments related to our office facility leases and other contractual obligations. We lease our office facilities under non-cancelable operating lease agreements expiring through fiscal 2024. Certain of these lease agreements have free or annual rent increases. We recognize rent expense under such agreements on a straight-line basis over the lease term, with any free or annual rent increases amortized as a reduction from or addition to rent expense over the lease term. Future minimum payments due under operating leases as of April 30, 2018 are as follows: Fiscal Year Ending July 31: Amount (in thousands) 2018 (remaining three months) $ 5,784 2019 22,259 2020 19,007 2021 17,571 2022 15,856 Thereafter 25,111 Total $ 105,588 Purchase Commitments During the normal course of business, we make commitments with our third-party hardware contract manufacturers to manufacture our inventory and non-standard components based on our forecasts. These commitments consist of obligations for on-hand inventory and non-cancelable purchase orders for non-standard components. We record a charge for firm, non-cancelable and unconditional purchase commitments with our third-party hardware contract manufacturers for non-standard components when and if quantities exceed our future demand forecasts through a charge to cost of product sales. As of April 30, 2018 , we had approximately $25.4 million of non-cancelable purchase commitments pertaining to our normal operations, and approximately $54.7 million

STOCKHOLDERS_ EQUITY

STOCKHOLDERS’ EQUITY	9 Months Ended
	Apr. 30, 2018
Equity [Abstract]
STOCKHOLDERS’ EQUITY	STOCKHOLDERS’ EQUITY Preferred Stock Upon the closing of our initial public offering ("IPO") in October 2016, we 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 our Board of Directors (the "Board"). As of April 30, 2018 , we had 200,000,000 shares of preferred stock authorized, with a par value of $0.000025 , and no shares of preferred stock issued or outstanding. Common Stock We have two classes of authorized common stock, Class A common stock and Class B common stock. As of April 30, 2018 , we 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 April 30, 2018 , we had 132,152,095 shares of Class A common stock issued and outstanding and 38,130,226 shares of Class B common stock 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. Holders of Class B common stock are entitled to 10

EQUITY AWARD PLANS

EQUITY AWARD PLANS	9 Months Ended
	Apr. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
EQUITY AWARD PLANS	EQUITY AWARD PLANS Stock Plans In June 2010, we adopted the 2010 Stock Plan ("2010 Plan"), in December 2011, we adopted the 2011 Stock Plan ("2011 Plan"), and in December 2015, the Board adopted the 2016 Equity Incentive Plan ("2016 Plan"), which was amended in September 2016 (collectively, the "Stock Plans"). Our stockholders approved the 2016 Plan in March 2016 and it became effective in connection with our IPO in October 2016. As a result, at the time of the IPO, we ceased granting additional stock awards under the 2010 Plan and 2011 Plan and both plans were 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 restricted stock units ("RSUs"), or until those stock awards become vested or expired by their terms. Under the 2016 Plan, we may grant incentive stock options, non-statutory stock options, restricted stock, RSUs, and stock appreciation rights, to employees, directors and consultants. We have initially reserved 22,400,000 shares of our 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 also includes an annual increase on the first day of each fiscal year, beginning in fiscal 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 our immediately preceding fiscal year, or such other amount as may be determined by the Board. Accordingly, on August 1, 2017, the number of shares of Class A common stock available for issuance under our 2016 Plan increased by 7,731,826 shares pursuant to these provisions. As of April 30, 2018 , we had reserved a total of 48,709,055 shares available for the issuance of equity awards under the Stock Plans, of which 13,468,557 shares were still available for grant. Restricted Stock Units Performance RSUs — We granted RSUs that contain both service and performance conditions to our executives and employees ("Performance RSUs"). Vesting of Performance RSUs is subject to continuous service and the satisfaction of certain of our liquidity events, including the expiration of a lock-up period established in connection with the IPO, or both certain liquidity events and specified performance targets. While we recognize cumulative stock-based compensation expense for the portion of the awards for which both the service condition has been satisfied and it is probable that the performance conditions will be met, the actual vesting and settlement of Performance RSUs are subject to the performance conditions actually being met. During the three months ended October 31, 2016, we began to recognize Performance RSUs with liquidity event performance conditions, as the satisfaction of the performance conditions for vesting became probable. Below is a summary of RSU activity under the Stock Plans: Number of Grant Date Fair Value per Share Outstanding at July 31, 2017 17,376,090 $ 18.85 Granted 11,374,865 $ 34.35 Vested (4,288,257 ) $ 19.13 Canceled/forfeited (1,748,803 ) $ 22.54 Outstanding at April 30, 2018 22,713,895 $ 26.27 Subsequent to April 30, 2018, we granted 1,902,592 RSUs to our employees with a weighted average grant date fair value of $56.61 per share. Stock Options We did not grant any stock options during the nine months ended April 30, 2018 . A total of 7,632,405 stock options were exercised during the nine months ended April 30, 2018 for an average exercise price of $3.83 . As of April 30, 2018 , 12,492,423 stock options with a weighted average exercise price $4.99 per share, weighted average remaining contractual life of 5.9 years, and aggregate intrinsic value of $569.7 million remained outstanding. Employee Stock Purchase Plan In December 2015, the Board adopted the 2016 Employee Stock Purchase Plan ("2016 ESPP"), which was subsequently amended in January 2016 and September 2016 and was approved by our stockholders in March 2016. The 2016 ESPP became effective in connection with our 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 also includes 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 our immediately preceding fiscal year, or such other amount as may be determined by the Board. Accordingly, on August 1, 2017, the number of shares of Class A common stock available for issuance under 2016 ESPP increased by 1,546,365 shares pursuant to these provisions. The 2016 ESPP allows eligible employees to purchase shares of our 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 in March and September of each year, and each offering period consists of two six-month purchase periods. 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 our Class A common stock on (i) the first trading day of the applicable offering period or (2) the last trading day of each purchase period in the applicable offering period. If the stock price of our 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. During the nine months ended April 30, 2018 , 2,417,850 shares of common stock were purchased for an aggregate amount of $39.0 million . As of April 30, 2018 , 1,682,461 shares were available for future issuance under the 2016 ESPP. We use 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 grant: Nine Months Ended April 30, 2017 2018 Expected term (in years) 0.75 0.75 Risk-free interest rate 0.6 % 1.4 % Volatility 51.0 % 49.8 % Dividend yield — % — % Stock-Based Compensation Total stock-based compensation expense recognized in the condensed consolidated statements of operations is as follows: Three Months Ended Nine Months Ended 2017 2018 2017 2018 (in thousands) Cost of revenue: Product $ 610 $ 634 $ 2,424 $ 1,888 Support, entitlements and other services 2,471 1,951 8,210 6,156 Sales and marketing 15,726 18,051 65,145 47,759 Research and development 27,041 16,474 89,826 49,039 General and administrative 4,503 7,836 28,081 17,630 Total stock-based compensation expense $ 50,351 $ 44,946 $ 193,686 $ 122,472 Stock-based compensation expense for the nine months ended April 30, 2017 included cumulative stock-compensation expense related to stock awards with performance conditions, for which vesting was deemed probable in the first quarter of fiscal 2017 upon the successful completion of our IPO. Prior to fiscal 2017, no expense was recognized related to these stock awards with performance conditions, as vesting was not deemed probable. The cumulative stock-based compensation expense recorded in the first quarter of fiscal 2017 was for the portion of the awards for which the relevant service condition had been satisfied and we have continued to recognize the remaining expense over the remaining service period. Stock-based compensation expense related to stock awards without performance conditions is recognized on a straight-line basis over the requisite service period. As of April 30, 2018 , unrecognized stock-based compensation expense related to the outstanding stock awards was approximately $531.8 million and is expected to be recognized over a weighted average period of approximately 2.6

INCOME TAXES

INCOME TAXES	9 Months Ended
	Apr. 30, 2018
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES The income tax provisions of $2.6 million and $3.3 million for the three and nine months ended April 30, 2017 , respectively, primarily consisted of foreign taxes on our international operations and U.S. state income taxes, partially offset by a $1.5 million U.S. valuation allowance release in connection with an acquisition completed during the nine months ended April 30, 2017 , and tax benefit related to the early adoption of ASU 2016-09. The net deferred tax liability recorded in connection with the acquisition completed during the nine months ended April 30, 2017 provided an additional source of taxable income to support the realizability of the pre-existing deferred tax assets and as a result, we released a portion of the U.S. valuation allowance. The income tax benefit of $0.8 million and provision of $3.3 million for the three and nine months ended April 30, 2018, respectively, primarily consisted of foreign taxes on our international operations, partially offset by a $3.9 million U.S. valuation allowance release in the third quarter of fiscal 2018 related to the Minjar and Netsil acquisitions. The net deferred tax liability recorded in connection with these acquisitions provided an additional source of taxable income to support the realizability of the pre-existing deferred tax assets and as a result, we released a portion of the U.S. valuation allowance. We continue to maintain a valuation allowance for our U.S. Federal and state deferred tax assets. On December 22, 2017, the Tax Cuts and Jobs Act ("TCJA") was signed into federal law, which among other changes, reduces the federal corporate tax rate to 21%. We do not expect the TCJA to have a material impact on our consolidated financial statements due to our valuation allowance in the U.S. Based on our analysis, U.S. deferred tax assets have been revalued from 34% to 21%, with a corresponding offset to the valuation allowance. This resulted in a significant reduction to our net U.S. deferred tax assets and valuation allowance and an immaterial impact to the income tax provision due to the valuation allowance on net U.S. deferred tax assets. Pursuant to SEC Staff Accounting Bulletin 118, which provides guidance on accounting for the tax effects of the TJCA, we will continue to evaluate the impact of various domestic and international provisions of the TCJA, as well as the impact of additional guidance that may be provided, in order to assess the full effect on our consolidated financial results, including disclosures for our fiscal year ending July 31, 2018. We have not yet made a policy election with respect to our treatment of potential global intangible low-taxed income ("GILTI"). Companies can either account for taxes on GILTI as incurred or recognize deferred taxes when basis differences exist that are expected to affect the amount of the GILTI inclusion upon reversal. We are still in the process of analyzing the provisions of the act associated with GILTI and the expected impact of GILTI will have on us in the future.

NET LOSS PER SHARE

NET LOSS PER SHARE	9 Months Ended
	Apr. 30, 2018
Earnings Per Share [Abstract]
NET LOSS PER SHARE	NET LOSS PER SHARE We compute basic net income (loss) per share using the weighted average number of common shares outstanding during the period. We compute diluted net income (loss) per share using the weighted average number of common shares and dilutive potential common shares outstanding during the period. Dilutive potential common shares include shares issuable upon the exercise of stock options, the exercise of common stock warrants, the vesting of RSUs, and each purchase under our 2016 ESPP, under the treasury stock method. In loss periods, basic net loss per share and diluted net loss per share are the same, as the effect of potential common shares is anti-dilutive and therefore excluded. The rights, including the liquidation and dividend rights, of the holders of our Class A and Class B common stock are identical, except with respect to voting. As the liquidation and dividend rights are identical, our undistributed earnings or losses are allocated on a proportionate basis among the holders of both Class A and Class B common stock. As a result, the net income (loss) per share attributed to common stockholders will, therefore, be the same for both Class A and Class B common stock on an individual or combined basis. The computation of basic and diluted net loss per share attributable to Class A and Class B common stockholders is as follows: Three Months Ended Nine Months Ended 2017 As Adjusted (1) 2018 2017 As Adjusted (1) 2018 (in thousands, except share and per share data) Numerator: Net loss $ (96,835 ) $ (85,674 ) $ (313,506 ) $ (209,792 ) Denominator: Weighted average shares—basic and diluted 144,054,432 166,845,544 119,851,586 161,709,365 Net loss per share attributable to common stockholders—basic and diluted $ (0.67 ) $ (0.51 ) $ (2.62 ) $ (1.30 ) (1) Adjusted to include the impact of ASC 606. Refer to Note 3 for more details on the impact of the adoption of this standard. 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 Nine Months Ended 2017 2018 Outstanding stock options and RSUs 41,204,043 35,206,318 Employee stock purchase plan 1,474,965 1,341,470 Contingently issuable shares pursuant to a business combination — 276,625 Common stock subject to repurchase 383,736 73,360 Common stock warrants 34,180 34,180 Total 43,096,924 36,931,953

SEGMENT INFORMATION

SEGMENT INFORMATION	9 Months Ended
	Apr. 30, 2018
Segment Reporting [Abstract]
SEGMENT INFORMATION	SEGMENT INFORMATION Our chief operating decision maker is a group which is comprised of our Chief Executive Officer and Chief Financial Officer. This group reviews financial information presented on a consolidated basis for purposes of allocating resources and evaluating financial performance. Accordingly, we have a single reportable segment. The following table sets forth revenue by geographic location based on bill-to location: Three Months Ended Nine Months Ended 2017 As Adjusted (1) 2018 2017 As Adjusted (1) 2018 (in thousands) U.S. $ 114,323 $ 135,276 $ 325,533 $ 488,416 Europe, the Middle East and Africa 39,271 74,916 99,289 164,089 Asia-Pacific 45,443 68,622 141,233 172,774 Other Americas 6,633 10,599 27,390 26,430 Total revenue $ 205,670 $ 289,413 $ 593,445 $ 851,709 (1) Adjusted to include the impact of ASC 606. Refer to Note 3 for more details on the impact of the adoption of this standard. Pursuant to our arrangement with one of our OEMs, prior to the fourth quarter of fiscal 2017, billings to this OEM were entirely attributed to Asia-Pacific. Beginning in the fourth quarter of fiscal 2017, billings to this OEM were allocated to various geographic locations. As of July 31, 2017 and April 30, 2018 , $63.3 million and $118.6 million

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS	9 Months Ended
	Apr. 30, 2018
Related Party Transactions [Abstract]
Related Party Transactions	RELATED PARTY TRANSACTIONS We enter into various transactions with related parties in the normal course of business. During the three and nine months ended April 30, 2017 and 2018 , we did not have any material related party transactions. One member of our Board is affiliated with Lightspeed Venture Partners. As of April 30, 2018 , entities affiliated with Lightspeed Venture Partners owned approximately 6.8%

BASIS OF PRESENTATION AND SUM20

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	9 Months Ended
	Apr. 30, 2018
Accounting Policies [Abstract]
Principles of Consolidation and Significant Accounting Policies	Principles of Consolidation and Significant Accounting Policies The accompanying condensed consolidated financial statements, which include the accounts of Nutanix, Inc. and our wholly-owned subsidiaries, have been prepared in conformity with accounting principles generally accepted in the United States ("U.S. GAAP"), and, except for the impact of the adoption of the new accounting guidance related to revenue recognition, are consistent in all material respects with those included in our Annual Report on Form 10-K for the fiscal year ended July 31, 2017, filed with the Securities and Exchange Commission ("SEC"), on September 18, 2017. All intercompany accounts and transactions have been eliminated in consolidation. The condensed consolidated financial statements are unaudited, but include all adjustments of a normal recurring nature necessary for a fair presentation of our quarterly results. Certain reclassifications have been made to the prior year financial statements to conform to the current year presentation. These reclassifications had no impact on our previously reported net loss or accumulated deficit. Effective August 1, 2017, we adopted Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with Customers ("ASC 606"), as discussed in detail in Note 3. All amounts and disclosures set forth in this Quarterly Report on Form 10-Q have been updated to comply with ASC 606, as indicated by the "as adjusted" footnote. Certain prior period amounts have been adjusted as a result of our early adoption of ASC 606. Refer to "Summary of Significant Accounting Policies" and "Recent Accounting Pronouncements" below for more information.
Use of Estimates	Use of EstimatesThe preparation of interim 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 estimate of standalone selling prices for products and related support; determination of fair value of stock-based awards; 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; fair value of debt and equity components related to our convertible senior notes; 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 Risk Concentration of revenue and accounts receivable —We sell our products primarily through Partners and occasionally directly to end customers. For the three and nine months ended April 30, 2017 and 2018
Recently Issued and Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements In May 2014, the Financial Accounting Standards Board ("FASB"), issued ASC 606. The standard is a comprehensive new revenue recognition model that requires revenue to be recognized in a manner which depicts 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 the 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 would have been effective for us beginning August 1, 2018, but early adoption as of the original effective date of August 1, 2017 was also permitted. We elected to early adopt the standard effective August 1, 2017 using the full retrospective method, which required us to recast our historical financial information to conform with the new standard. Refer to Note 3 for details of the impact to previously reported results. In May 2017, the FASB issued ASU 2017-09, Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting, which provides guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. The guidance is effective for annual periods beginning after December 15, 2017, with early adoption permitted, including adoption in any interim period for which financial statements have not yet been issued. We adopted this ASU effective August 1, 2017 and our adoption did not have a material impact on our condensed consolidated financial statements. 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. We adopted this ASU effective August 1, 2017 and our adoption did not have a material impact on our condensed 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 fiscal years beginning after December 15, 2017, including interim periods within those fiscal years, with early adoption permitted. We adopted this ASU effective November 1, 2017 and our adoption did not have any impact on our condensed consolidated financial statements. In January 2016, the FASB issued ASU 2016-01, Financial Instruments-Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities, which addresses certain aspects of recognition, measurement, presentation, and disclosure of financial instruments, with further clarifications made recently with the issuance of ASU 2018-03 and 2018-04. These new standards require equity securities to be measured at fair value with changes in fair value recognized through net income, which results in greater variability in our net income. We adopted the standard on January 1, 2018 and our adoption did not have any impact on our condensed consolidated financial statements since other than our investments in money market funds, which are reported as part of cash and cash equivalents, we do not have any other investments that are classified as equity securities. There are no unrealized gains or losses related to our investments in money market funds, as the fair value is equal to the face value. Recently Issued and Not Yet Adopted Accounting Pronouncements In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash. This new standard requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. Therefore, amounts generally described as restricted cash or restricted cash equivalents should be included with cash and cash equivalents when reconciling beginning-of-period and end-of-period amounts shown on the statement of cash flows. ASU 2016-18 is effective for us beginning August 1, 2018, with early adoption permitted. We do not believe that adoption of this ASU will have a material impact on our condensed consolidated financial statements. In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory. This new standard will require us 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 us beginning August 1, 2018, with early adoption permitted. We are currently evaluating the effect the adoption of this guidance will have on our condensed 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, except for short-term leases, on the balance sheet of lessees. ASU 2016-02 is effective for us beginning August 1, 2019, with early adoption permitted. This new standard requires a modified retrospective transition approach and provides certain optional transition relief. We currently anticipate that the adoption of this standard will have a material impact on our condensed consolidated balance sheets, given that we had operating lease commitments in excess of $100 million
Revenue Recognition	Revenue Recognition Effective August 1, 2017, we adopted ASC 606 using the full retrospective method, which required us to recast our historical financial information to conform with the standard. The most significant impact of ASC 606 on our historical financial information relates to the timing of revenue recognition for certain software licenses sold with post-contract customer support ("PCS"), for which we did not have vendor specific objective evidence, ("VSOE"), of fair value under the previous revenue recognition guidance. Under ASC 606, the requirement to have VSOE for undelivered elements is eliminated and we now recognize revenue for such software licenses upon transfer of control to our customers. In addition, the adoption of ASC 606 also resulted in differences in the timing of recognition of contract costs, such as sales commissions, as well as the corresponding impact to our provision for income taxes. The adoption of the standard had no significant impact on our provision for income taxes and had no impact on the net cash from or used in operating, investing or financing activities on our condensed consolidated statements of cash flows. See "ASC 606 Adoption Impact to Previously Reported Results" below for the impact of the adoption of the standard on our consolidated balance sheet and condensed consolidated statements of operations.

BASIS OF PRESENTATION AND SUM21

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	9 Months Ended
	Apr. 30, 2018
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 Nine Months Ended Partners 2017 As Adjusted (2) 2018 2017 As Adjusted (2) 2018 July 31, 2017 April 30, 2018 Partner A (1) (1) 10 % 10 % (1) (1) Partner B 18 % 15 % 18 % 20 % 12 % (1) Partner C 18 % 18 % 16 % 17 % 14 % 18 % Partner D (1) (1) (1) 10 % 20 % 15 % Partner E (1) (1) (1) (1) (1) (1) Partner F 17 % 13 % 14 % 13 % 18 % 15 % (1) Less than 10% (2)

BUSINESS COMBINATIONS (Tables)

BUSINESS COMBINATIONS (Tables)	9 Months Ended
	Apr. 30, 2018
Business Combinations [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	The following table presents the preliminary aggregate purchase price allocation related to our acquisitions of Minjar and Netsil as of April 30, 2018 : Estimated Fair Value (in thousands) Goodwill $ 71,652 Amortizable intangible assets 25,920 Tangible assets acquired 842 Liabilities assumed (11,041 ) Total consideration $ 87,373

REVENUE, DEFERRED REVENUE AND23

REVENUE, DEFERRED REVENUE AND DEFERRED COMMISSIONS (Tables)	9 Months Ended
	Apr. 30, 2018
Revenue Recognition and Deferred Revenue [Abstract]
Schedule of New Accounting Pronouncements and Changes in Accounting Principles	Selected consolidated balance sheet line items, adjusted for the adoption of ASC 606, are as follows: As of July 31, 2017 As Previously Reported Impact of Adoption As Adjusted (in thousands) Assets Deferred commissions — current $ 27,679 $ (3,836 ) (1) $ 23,843 Deferred commissions — non-current 33,709 15,975 (1) 49,684 Total deferred commissions $ 61,388 $ 12,139 $ 73,527 Liabilities Deferred revenue — current $ 233,498 $ (63,375 ) (2) $ 170,123 Deferred revenue — non-current 292,573 (93,640 ) (2) 198,933 Total deferred revenue $ 526,071 $ (157,015 ) $ 369,056 Accrued expenses and other current liabilities $ 9,414 $ 293 (3) $ 9,707 Stockholders' Equity $ 48,202 $ 168,861 $ 217,063 (1) Impact of cumulative change in commissions expense (2) Impact of cumulative change in revenue (3) Impact of cumulative change in provision for income taxes Selected unaudited condensed consolidated statement of operations line items, adjusted for the adoption of ASC 606, are as follows: Three Months Ended April 30, 2017 As Previously Reported Impact of Adoption As Adjusted (in thousands, except per share data) Revenue Product $ 143,142 $ 16,934 $ 160,076 Support, entitlements and other services 48,621 (3,027 ) 45,594 Total revenue $ 191,763 $ 13,907 $ 205,670 Gross profit $ 108,557 $ 13,907 $ 122,464 Operating expenses Sales and marketing expenses $ 128,007 $ (1,261 ) $ 126,746 Loss from operations $ (109,667 ) $ 15,168 $ (94,499 ) Net loss $ (111,977 ) $ 15,142 $ (96,835 ) Basic and diluted net loss per share $ (0.78 ) $ 0.11 $ (0.67 ) Nine Months Ended April 30, 2017 As Previously Reported Impact of Adoption As Adjusted (in thousands, except per share data) Revenue Product $ 411,307 $ 60,518 $ 471,825 Support, entitlements and other services 129,460 (7,840 ) 121,620 Total revenue $ 540,767 $ 52,678 $ 593,445 Gross profit $ 310,953 $ 52,678 $ 363,631 Operating expenses Sales and marketing expenses $ 368,026 $ (1,281 ) $ 366,745 Loss from operations $ (338,338 ) $ 53,959 $ (284,379 ) Net loss $ (367,358 ) $ 53,852 $ (313,506 ) Basic and diluted net loss per share $ (3.07 ) $ 0.45 $ (2.62 ) Unaudited revenue by geographic location, based on bill-to location, adjusted for the adoption of ASC 606, is as follows: Three Months Ended April 30, 2017 As Previously Reported Impact of Adoption As Adjusted (in thousands) U.S. $ 112,218 $ 2,105 $ 114,323 Europe, the Middle East and Africa 38,023 1,248 39,271 Asia-Pacific 35,508 9,935 45,443 Other Americas 6,014 619 6,633 Total revenue $ 191,763 $ 13,907 $ 205,670 Nine Months Ended April 30, 2017 As Previously Reported Impact of Adoption As Adjusted (in thousands) U.S. $ 317,262 $ 8,271 $ 325,533 Europe, the Middle East and Africa 95,543 3,746 99,289 Asia-Pacific 101,798 39,435 141,233 Other Americas 26,164 1,226 27,390 Total revenue $ 540,767 $ 52,678 $ 593,445 Selected unaudited condensed consolidated statement of cash flows line items, adjusted for the adoption of ASC 606, are as follows: Nine Months Ended April 30, 2017 As Previously Reported Impact of Adoption As Adjusted (in thousands) Cash flows from operating activities: Net loss $ (367,358 ) $ 53,852 $ (313,506 ) Adjustments to reconcile net loss to net cash provided by operating activities: Deferred commissions $ (13,406 ) $ (1,282 ) $ (14,688 ) Accrued expenses and other liabilities $ 5,291 $ 108 $ 5,399 Deferred revenue $ 160,527 $ (52,678 ) $ 107,849
Revenue by Arrangement, Disclosure	The following table depicts the disaggregation of revenue by revenue type, consistent with how we evaluate our financial performance: Three Months Ended Nine Months Ended 2017 2018 2017 2018 (in thousands) Software revenue $ 100,810 $ 158,500 $ 308,400 $ 441,885 Hardware revenue 59,266 62,617 163,425 221,454 Support, entitlements and other services revenue 45,594 68,296 121,620 188,370 Total revenue $ 205,670 $ 289,413 $ 593,445 $ 851,709
Deferred Revenue, by Arrangement, Disclosure	Significant changes in the balance of deferred revenue (contract liability) and total deferred commissions (contract asset) for the periods presented are as follows: Three Months Ended Deferred Revenue Deferred Commissions (in thousands) Balance as of January 31, 2018 $ 478,000 $ 99,628 Additions 130,061 30,755 Revenue/commissions recognized (68,296 ) (27,655 ) Assumed in a business combination 124 — Balance as of April 30, 2018 $ 539,889 $ 102,728 Nine Months Ended Deferred Revenue Deferred Commissions (in thousands) Balance as of July 31, 2017 (1) $ 369,056 $ 73,527 Additions 359,079 110,344 Revenue/commissions recognized (188,370 ) (81,143 ) Assumed in a business combination 124 — Balance as of April 30, 2018 $ 539,889 $ 102,728 (1)

FAIR VALUE MEASUREMENTS (Tables

FAIR VALUE MEASUREMENTS (Tables)	9 Months Ended
	Apr. 30, 2018
Fair Value Disclosures [Abstract]
Schedule of Financial Assets and Liabilities Measured on Recurring Basis	The carrying values and estimated fair values of financial instruments not recorded at fair value are as follows: As of July 31, 2017 As of April 30, 2018 Carrying Value Estimated Fair Value Carrying Value Estimated Fair Value (in thousands) Convertible senior notes, net $ — $ — $ 422,567 $ 714,535 As of July 31, 2017 Level I Level II Level III Total (in thousands) Financial Assets: Cash equivalents: Money market funds $ 34,784 $ — $ — $ 34,784 Commercial paper — 23,041 — 23,041 Short-term investments: Corporate bonds — 160,634 — 160,634 Commercial paper — 36,084 — 36,084 U.S. government securities — 13,976 — 13,976 Total measured at fair value $ 34,784 $ 233,735 $ — $ 268,519 Cash 80,534 Total cash, cash equivalents and short-term investments $ 349,053 Financial Liabilities: Contingent consideration $ — $ — $ 4,295 $ 4,295 As of April 30, 2018 Level I Level II Level III Total (in thousands) Financial Assets: Cash equivalents: Money market funds $ 95,258 $ — $ — $ 95,258 Commercial paper — 108,253 — 108,253 Corporate bonds — 4,000 — 4,000 Short-term investments: Corporate bonds — 395,107 — 395,107 Commercial paper — 118,939 — 118,939 U.S. government securities — 32,629 — 32,629 Total measured at fair value $ 95,258 $ 658,928 $ — $ 754,186 Cash 169,278 Total cash, cash equivalents and short-term investments $ 923,464 Financial Liabilities: Contingent consideration $ — $ — $ 924 $ 924
Summary of Changes in Fair Value of Convertible Preferred Stock Warrant Liability	A summary of the changes in the fair value of our contingent consideration, categorized as Level 3 in the fair value hierarchy, is as follows: Nine Months Ended 2017 2018 (in thousands) Contingent consideration—beginning balance $ — $ 4,295 Assumed in a business combination 2,371 — Change in fair value (1) 176 (3,371 ) Contingent consideration—ending balance $ 2,547 $ 924 (1)

BALANCE SHEET COMPONENTS (Table

BALANCE SHEET COMPONENTS (Tables)	9 Months Ended
	Apr. 30, 2018
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 our investments in marketable debt securities by their contractual maturity dates: As of April 30, 2018 (in thousands) Due within one year $ 405,385 Due in one year through three years 141,290 Total $ 546,675
Schedule of Property, Plant and Equipment	Property and Equipment, Net Property and equipment, net consists of the following: Estimated As of July 31, 2017 April 30, 2018 (in months) (in thousands) Computer, production, engineering, and other equipment 36 $ 85,280 $ 117,403 Demonstration units 12 46,387 52,508 Leasehold improvements (1) N/A 10,562 17,549 Furniture and fixtures 60 4,744 6,535 Total property and equipment, gross 146,973 193,995 Less: Accumulated depreciation and amortization (88,901 ) (117,673 ) Total property and equipment, net $ 58,072 $ 76,322 (1) 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 consists of the following: As of July 31, 2017 April 30, 2018 (in thousands) Indefinite-lived intangible asset: In-process R&D (1) $ 16,100 $ — Finite-lived intangible assets: Developed technology (1) 7,300 47,500 Customer relationships 4,830 6,650 Total finite-lived intangible assets, gross 12,130 54,150 Total intangible assets, gross 28,230 54,150 Less: Accumulated amortization of developed technology (1,314 ) (4,821 ) Accumulated amortization of customer relationships (915 ) (1,539 ) Total accumulated amortization (2,229 ) (6,360 ) Intangible assets, net $ 26,001 $ 47,790
Schedule of Indefinite-Lived Intangible Assets	Intangible assets, net consists of the following: As of July 31, 2017 April 30, 2018 (in thousands) Indefinite-lived intangible asset: In-process R&D (1) $ 16,100 $ — Finite-lived intangible assets: Developed technology (1) 7,300 47,500 Customer relationships 4,830 6,650 Total finite-lived intangible assets, gross 12,130 54,150 Total intangible assets, gross 28,230 54,150 Less: Accumulated amortization of developed technology (1,314 ) (4,821 ) Accumulated amortization of customer relationships (915 ) (1,539 ) Total accumulated amortization (2,229 ) (6,360 ) Intangible assets, net $ 26,001 $ 47,790
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	The estimated future amortization expense of our finite-lived intangible assets is as follows: Year Ending July 31: Amount (in thousands) 2018 (remaining three months) $ 2,237 2019 8,989 2020 8,949 2021 8,949 2022 7,751 Thereafter 10,915 Total $ 47,790
Schedule of Accrued Liabilities	Accrued Compensation and Benefits Accrued compensation and benefits consists of the following: As of July 31, 2017 April 30, 2018 (in thousands) Accrued commissions $ 20,388 $ 16,767 Accrued vacation 6,286 10,100 Contributions to ESPP withheld 14,371 7,581 Accrued bonus 7,342 9,187 Payroll taxes payable 3,434 8,627 Other 5,700 8,959 Total accrued compensation and benefits $ 57,521 $ 61,221 Accrued Expenses and Other Current Liabilities Accrued expenses and other current liabilities consists of the following: As of July 31, 2017 April 30, 2018 (in thousands) Accrued professional services $ 4,167 $ 4,614 Income taxes payable (1) 3,873 2,903 Other 1,667 4,128 Total accrued expenses and other current liabilities $ 9,707 $ 11,645 (1)

CONVERTIBLE SENIOR NOTES (Table

CONVERTIBLE SENIOR NOTES (Tables)	9 Months Ended
	Apr. 30, 2018
Debt Disclosure [Abstract]
Net Proceeds from Notes	The total net proceeds from the Notes are as follows: Amount (in thousands) Principal amount $ 575,000 Less: initial purchasers' discount (10,781 ) Less: cost of the bond hedges (143,175 ) Add: proceeds from the sale of warrants 87,975 Less: other issuance costs (707 ) Net proceeds $ 508,312
Components of Notes	The Notes consisted of the following: As of April 30, 2018 (in thousands) Principal amounts: Principal $ 575,000 Unamortized debt discount (1) (144,378 ) Unamortized debt issuance costs (1) (8,055 ) Net carrying amount $ 422,567 Carrying amount of the equity component (2) $ 148,598 (1) Included in the condensed consolidated balance sheets within "Convertible senior notes, net" and amortized over the remaining life of the Notes using the effective interest rate method. The effective interest rate is 6.62% . (2) Included in the condensed consolidated balance sheets within additional paid-in capital, net of $3.0 million
Interest Expense Recognized	The following table sets forth the total interest expense recognized related to the Notes: Three Months Ended Nine Months Ended (in thousands) Interest expense related to amortization of debt discount $ 6,550 $ 7,250 Interest expense related to amortization of debt issuance costs 366 404 Total interest expense $ 6,916 $ 7,654

COMMITMENTS AND CONTINGENCIES C

COMMITMENTS AND CONTINGENCIES COMMITMENTS AND CONTINGENCIES (Tables)	9 Months Ended
	Apr. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Schedule of Future Minimum Rental Payments for Operating Leases	Future minimum payments due under operating leases as of April 30, 2018 are as follows: Fiscal Year Ending July 31: Amount (in thousands) 2018 (remaining three months) $ 5,784 2019 22,259 2020 19,007 2021 17,571 2022 15,856 Thereafter 25,111 Total $ 105,588

EQUITY AWARD PLANS (Tables)

EQUITY AWARD PLANS (Tables)	9 Months Ended
	Apr. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of RSUs Activity	Below is a summary of RSU activity under the Stock Plans: Number of Grant Date Fair Value per Share Outstanding at July 31, 2017 17,376,090 $ 18.85 Granted 11,374,865 $ 34.35 Vested (4,288,257 ) $ 19.13 Canceled/forfeited (1,748,803 ) $ 22.54 Outstanding at April 30, 2018 22,713,895 $ 26.27
Schedule of ESPP Valuation Assumptions	We use 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 grant: Nine Months Ended April 30, 2017 2018 Expected term (in years) 0.75 0.75 Risk-free interest rate 0.6 % 1.4 % Volatility 51.0 % 49.8 % Dividend yield — % — %
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs	Total stock-based compensation expense recognized in the condensed consolidated statements of operations is as follows: Three Months Ended Nine Months Ended 2017 2018 2017 2018 (in thousands) Cost of revenue: Product $ 610 $ 634 $ 2,424 $ 1,888 Support, entitlements and other services 2,471 1,951 8,210 6,156 Sales and marketing 15,726 18,051 65,145 47,759 Research and development 27,041 16,474 89,826 49,039 General and administrative 4,503 7,836 28,081 17,630 Total stock-based compensation expense $ 50,351 $ 44,946 $ 193,686 $ 122,472

NET LOSS PER SHARE (Tables)

NET LOSS PER SHARE (Tables)	9 Months Ended
	Apr. 30, 2018
Earnings Per Share [Abstract]
Schedule of Basic and Diluted Net Loss Per Share	The computation of basic and diluted net loss per share attributable to Class A and Class B common stockholders is as follows: Three Months Ended Nine Months Ended 2017 As Adjusted (1) 2018 2017 As Adjusted (1) 2018 (in thousands, except share and per share data) Numerator: Net loss $ (96,835 ) $ (85,674 ) $ (313,506 ) $ (209,792 ) Denominator: Weighted average shares—basic and diluted 144,054,432 166,845,544 119,851,586 161,709,365 Net loss per share attributable to common stockholders—basic and diluted $ (0.67 ) $ (0.51 ) $ (2.62 ) $ (1.30 ) (1)
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 Nine Months Ended 2017 2018 Outstanding stock options and RSUs 41,204,043 35,206,318 Employee stock purchase plan 1,474,965 1,341,470 Contingently issuable shares pursuant to a business combination — 276,625 Common stock subject to repurchase 383,736 73,360 Common stock warrants 34,180 34,180 Total 43,096,924 36,931,953

SEGMENT INFORMATION (Tables)

SEGMENT INFORMATION (Tables)	9 Months Ended
	Apr. 30, 2018
Segment Reporting [Abstract]
Schedule of Revenue by Geographic Area	The following table sets forth revenue by geographic location based on bill-to location: Three Months Ended Nine Months Ended 2017 As Adjusted (1) 2018 2017 As Adjusted (1) 2018 (in thousands) U.S. $ 114,323 $ 135,276 $ 325,533 $ 488,416 Europe, the Middle East and Africa 39,271 74,916 99,289 164,089 Asia-Pacific 45,443 68,622 141,233 172,774 Other Americas 6,633 10,599 27,390 26,430 Total revenue $ 205,670 $ 289,413 $ 593,445 $ 851,709 (1)

BASIS OF PRESENTATION AND SUM31

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - Partner Concentration Risk	3 Months Ended		9 Months Ended		12 Months Ended
	Apr. 30, 2018	Apr. 30, 2017	Apr. 30, 2018	Apr. 30, 2017	Jul. 31, 2017
Revenue | Partner A
Concentration Risk [Line Items]
Concentration risk percentage			10.00%	10.00%
Revenue | Partner B
Concentration Risk [Line Items]
Concentration risk percentage	15.00%	18.00%	20.00%	18.00%
Revenue | Partner C
Concentration Risk [Line Items]
Concentration risk percentage	18.00%	18.00%	17.00%	16.00%
Revenue | Partner D
Concentration Risk [Line Items]
Concentration risk percentage			10.00%
Revenue | Partner F
Concentration Risk [Line Items]
Concentration risk percentage	13.00%	17.00%	13.00%	14.00%
Accounts Receivable | Partner B
Concentration Risk [Line Items]
Concentration risk percentage					12.00%
Accounts Receivable | Partner C
Concentration Risk [Line Items]
Concentration risk percentage			18.00%		14.00%
Accounts Receivable | Partner D
Concentration Risk [Line Items]
Concentration risk percentage			15.00%		20.00%
Accounts Receivable | Partner F
Concentration Risk [Line Items]
Concentration risk percentage			15.00%		18.00%

BUSINESS COMBINATIONS - Additio

BUSINESS COMBINATIONS - Additional Information (Details) $ / shares in Units, $ in Thousands	Mar. 22, 2018USD ($)$ / sharesshares	Mar. 16, 2018USD ($)	Apr. 30, 2018USD ($)business	Jul. 31, 2017USD ($)	[1]
Business Acquisition [Line Items]
Number of businesses acquired | business			2
Goodwill			$ 88,324	$ 16,672
Minjar Inc.
Business Acquisition [Line Items]
Consideration transferred		$ 19,900
Payments to acquire businesses, gross		19,400
Consideration transferred, liabilities incurred		500
Contingent consideration, liability		$ 3,900
Payment term		2 years
Goodwill		$ 18,600
Intangible assets		$ 7,000
Estimated life		5 years
Deferred tax liabilities		$ (5,700)
Acquisition related costs			600
Minjar Inc. | Developed technology
Business Acquisition [Line Items]
Intangible assets		5,600
Minjar Inc. | Customer relationships
Business Acquisition [Line Items]
Intangible assets		$ 1,400
Netsil Inc.
Business Acquisition [Line Items]
Consideration transferred	$ 67,500
Payments to acquire businesses, gross	$ 3,700
Payment term	2 years
Goodwill	$ 53,100
Intangible assets	$ 19,000
Estimated life	7 years
Deferred tax liabilities	$ (2,600)
Acquisition related costs			$ 400
Equity interest issued or issuable (in shares) | shares	1,206,364
Equity interests issued and issuable (in shares)	$ 63,800
Share price (in dollars per share) | $ / shares	$ 52.87
Deferred payment, number of shares (in shares) | shares	104,426
Holdback arrangement, amount	$ 5,500
Liabilities assumed	$ (1,400)
[1]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

BUSINESS COMBINATIONS - Prelimi

BUSINESS COMBINATIONS - Preliminary Aggregate Purchase Price Allocation (Details) - USD ($) $ in Thousands	9 Months Ended
	Apr. 30, 2018	Jul. 31, 2017	[1]
Business Acquisition [Line Items]
Goodwill	$ 88,324	$ 16,672
Minjar and Netsil [Member]
Business Acquisition [Line Items]
Goodwill	71,652
Amortizable intangible assets	25,920
Tangible assets acquired	842
Liabilities assumed	(11,041)
Total consideration	$ 87,373
[1]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

REVENUE, DEFERRED REVENUE AND34

REVENUE, DEFERRED REVENUE AND DEFERRED COMMISSIONS - ASC 606 Impact on Balance Sheet (Details) - USD ($) $ in Thousands	Apr. 30, 2018	Jan. 31, 2018	Jul. 31, 2017
Assets
Deferred commissions—current	$ 30,274		$ 23,843	[1]
Deferred commissions—non-current	72,454		49,684	[1]
Total deferred commissions	102,728	$ 99,628	73,527
Liabilities
Deferred revenue—current	243,770		170,123	[1]
Deferred revenue—non-current	296,119		198,933	[1]
Total deferred revenue	539,889	$ 478,000	369,056
Accrued expenses and other current liabilities	11,645		9,707	[1]
Stockholders' Equity	$ 354,581		217,063	[1]
Accounting Standards Update 2014-09
Assets
Deferred commissions—current			23,843
Deferred commissions—non-current			49,684
Total deferred commissions			73,527
Liabilities
Deferred revenue—current			170,123
Deferred revenue—non-current			198,933
Total deferred revenue			369,056
Accrued expenses and other current liabilities			9,707
Stockholders' Equity			217,063
Accounting Standards Update 2014-09 | Scenario, Previously Reported
Assets
Deferred commissions—current			27,679
Deferred commissions—non-current			33,709
Total deferred commissions			61,388
Liabilities
Deferred revenue—current			233,498
Deferred revenue—non-current			292,573
Total deferred revenue			526,071
Accrued expenses and other current liabilities			9,414
Stockholders' Equity			48,202
Accounting Standards Update 2014-09 | Restatement Adjustment
Assets
Deferred commissions—current			(3,836)
Deferred commissions—non-current			15,975
Total deferred commissions			12,139
Liabilities
Deferred revenue—current			(63,375)
Deferred revenue—non-current			(93,640)
Total deferred revenue			(157,015)
Accrued expenses and other current liabilities			293
Stockholders' Equity			$ 168,861
[1]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

REVENUE, DEFERRED REVENUE AND35

REVENUE, DEFERRED REVENUE AND DEFERRED COMMISSIONS - ASC 606 Impact on Income Statement (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended			9 Months Ended
	Apr. 30, 2018	Apr. 30, 2017		Apr. 30, 2018	Apr. 30, 2017
Revenues [Abstract]
Product	$ 221,117	$ 160,076	[1]	$ 663,339	$ 471,825	[1]
Support, entitlements and other services	68,296	45,594	[1]	188,370	121,620	[1]
Total revenue	289,413	205,670	[1]	851,709	593,445	[1]
Gross profit	193,798	122,464	[1]	538,944	363,631	[1]
Operating expenses:
Sales and marketing	169,860	126,746	[1]	466,466	366,745	[1]
Loss from operations	(82,282)	(94,499)	[1]	(201,178)	(284,379)	[1]
Net loss	$ (85,674)	$ (96,835)	[1],[2]	$ (209,792)	$ (313,506)	[1],[2],[3]
Basic and diluted net loss per share (in dollars per share)	$ (0.51)	$ (0.67)	[1]	$ (1.30)	$ (2.62)	[1]
Accounting Standards Update 2014-09
Revenues [Abstract]
Product		$ 160,076			$ 471,825
Support, entitlements and other services		45,594			121,620
Total revenue		205,670			593,445
Gross profit		122,464			363,631
Operating expenses:
Sales and marketing		126,746			366,745
Loss from operations		(94,499)			(284,379)
Net loss		$ (96,835)			$ (313,506)
Basic and diluted net loss per share (in dollars per share)		$ (0.67)			$ (2.62)
Accounting Standards Update 2014-09 | Scenario, Previously Reported
Revenues [Abstract]
Product		$ 143,142			$ 411,307
Support, entitlements and other services		48,621			129,460
Total revenue		191,763			540,767
Gross profit		108,557			310,953
Operating expenses:
Sales and marketing		128,007			368,026
Loss from operations		(109,667)			(338,338)
Net loss		$ (111,977)			$ (367,358)
Basic and diluted net loss per share (in dollars per share)		$ (0.78)			$ (3.07)
Accounting Standards Update 2014-09 | Restatement Adjustment
Revenues [Abstract]
Product		$ 16,934			$ 60,518
Support, entitlements and other services		(3,027)			(7,840)
Total revenue		13,907			52,678
Gross profit		13,907			52,678
Operating expenses:
Sales and marketing		(1,261)			(1,281)
Loss from operations		15,168			53,959
Net loss		$ 15,142			$ 53,852
Basic and diluted net loss per share (in dollars per share)		$ 0.11			$ 0.45
[1]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.
[2]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.
[3]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

REVENUE, DEFERRED REVENUE AND36

REVENUE, DEFERRED REVENUE AND DEFERRED COMMISSIONS - ASC 606 Impact on Revenue by Geographic Region (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Apr. 30, 2018	Apr. 30, 2017		Apr. 30, 2018	Apr. 30, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenue	$ 289,413	$ 205,670	[1]	$ 851,709	$ 593,445	[1]
U.S.
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenue	135,276	114,323		488,416	325,533
Europe, the Middle East and Africa
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenue	74,916	39,271		164,089	99,289
Asia-Pacific
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenue	68,622	45,443		172,774	141,233
Other Americas
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenue	$ 10,599	6,633		$ 26,430	27,390
Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenue		205,670			593,445
Accounting Standards Update 2014-09 | U.S.
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenue		114,323			325,533
Accounting Standards Update 2014-09 | Europe, the Middle East and Africa
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenue		39,271			99,289
Accounting Standards Update 2014-09 | Asia-Pacific
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenue		45,443			141,233
Accounting Standards Update 2014-09 | Other Americas
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenue		6,633			27,390
Accounting Standards Update 2014-09 | Scenario, Previously Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenue		191,763			540,767
Accounting Standards Update 2014-09 | Scenario, Previously Reported | U.S.
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenue		112,218			317,262
Accounting Standards Update 2014-09 | Scenario, Previously Reported | Europe, the Middle East and Africa
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenue		38,023			95,543
Accounting Standards Update 2014-09 | Scenario, Previously Reported | Asia-Pacific
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenue		35,508			101,798
Accounting Standards Update 2014-09 | Scenario, Previously Reported | Other Americas
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenue		6,014			26,164
Accounting Standards Update 2014-09 | Restatement Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenue		13,907			52,678
Accounting Standards Update 2014-09 | Restatement Adjustment | U.S.
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenue		2,105			8,271
Accounting Standards Update 2014-09 | Restatement Adjustment | Europe, the Middle East and Africa
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenue		1,248			3,746
Accounting Standards Update 2014-09 | Restatement Adjustment | Asia-Pacific
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenue		9,935			39,435
Accounting Standards Update 2014-09 | Restatement Adjustment | Other Americas
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenue		$ 619			$ 1,226
[1]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

REVENUE, DEFERRED REVENUE AND37

REVENUE, DEFERRED REVENUE AND DEFERRED COMMISSIONS - ASC 606 Impact on Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Apr. 30, 2018	Apr. 30, 2017		Apr. 30, 2018	Apr. 30, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net loss	$ (85,674)	$ (96,835)	[1],[2]	$ (209,792)	$ (313,506)	[1],[2],[3]
Adjustments to reconcile net loss to net cash provided by operating activities:
Deferred commissions				(29,201)	(14,688)	[3]
Accrued expenses and other liabilities				(1,147)	5,399	[3]
Deferred revenue				$ 170,709	107,849	[3]
Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net loss		(96,835)			(313,506)
Adjustments to reconcile net loss to net cash provided by operating activities:
Deferred commissions					14,688
Accrued expenses and other liabilities					5,399
Deferred revenue					107,849
Accounting Standards Update 2014-09 | Scenario, Previously Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net loss		(111,977)			(367,358)
Adjustments to reconcile net loss to net cash provided by operating activities:
Deferred commissions					13,406
Accrued expenses and other liabilities					5,291
Deferred revenue					160,527
Accounting Standards Update 2014-09 | Restatement Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net loss		$ 15,142			53,852
Adjustments to reconcile net loss to net cash provided by operating activities:
Deferred commissions					1,282
Accrued expenses and other liabilities					108
Deferred revenue					$ (52,678)
[1]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.
[2]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.
[3]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

REVENUE, DEFERRED REVENUE AND38

REVENUE, DEFERRED REVENUE AND DEFERRED COMMISSIONS - Schedule of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Apr. 30, 2018	Apr. 30, 2017		Apr. 30, 2018	Apr. 30, 2017
Condensed Income Statements, Captions [Line Items]
Sales revenue, goods	$ 221,117	$ 160,076	[1]	$ 663,339	$ 471,825	[1]
Support, entitlements and other services	68,296	45,594	[1]	188,370	121,620	[1]
Total revenue	289,413	205,670	[1]	851,709	593,445	[1]
Software
Condensed Income Statements, Captions [Line Items]
Sales revenue, goods	158,500	100,810		441,885	308,400
Hardware
Condensed Income Statements, Captions [Line Items]
Sales revenue, goods	$ 62,617	59,266		$ 221,454	163,425
Accounting Standards Update 2014-09
Condensed Income Statements, Captions [Line Items]
Sales revenue, goods		160,076			471,825
Support, entitlements and other services		45,594			121,620
Total revenue		$ 205,670			$ 593,445
[1]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

REVENUE, DEFERRED REVENUE AND39

REVENUE, DEFERRED REVENUE AND DEFERRED COMMISSIONS - Deferred Revenue/Commissions (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2018	Apr. 30, 2017	Apr. 30, 2018	Apr. 30, 2017
Movement in Deferred Revenue [Roll Forward]
Deferred revenue, beginning balance	$ 478,000		$ 369,056
Additions	130,061		359,079
Revenue recognized	(68,296)		(188,370)
Assumed in a business combination	124		124
Deferred revenue, ending balance	539,889		539,889
Movement in Deferred Commissions [Roll Forward]
Deferred commissions, beginning balance	99,628		73,527
Additions	30,755		110,344
Commissions Recognized	(27,655)		(81,143)
Assumed in a business combination	0		0
Deferred commissions, ending balance	$ 102,728		$ 102,728
Percent expected to be recognized in next year	30.00%		30.00%
Revenue recognized, amount deferred in prior period	$ 49,400	$ 38,800	$ 136,800	$ 77,900
Contracted revenue not recognized	$ 567,100		$ 567,100
Percent expected to be recognized in next year	46.00%		46.00%

FAIR VALUE MEASUREMENTS - Fair

FAIR VALUE MEASUREMENTS - Fair Value of Financial Assets and Liabilities (Details) - USD ($) $ in Thousands	Apr. 30, 2018	Jul. 31, 2017
Financial Assets:
Short-term investments:	$ 546,675	$ 210,694	[1]
Recurring
Financial Assets:
Total measured at fair value	754,186	268,519
Cash	169,278	80,534
Total cash, cash equivalents and short-term investments	923,464	349,053
Recurring | Commitments
Financial Liabilities:
Convertible preferred stock warrant liability	924	4,295
Recurring | Corporate bonds
Financial Assets:
Short-term investments:	395,107	160,634
Recurring | Commercial paper
Financial Assets:
Short-term investments:	118,939	36,084
Recurring | U.S. government securities
Financial Assets:
Short-term investments:	32,629	13,976
Recurring | Money market funds
Financial Assets:
Cash equivalents:	95,258	34,784
Recurring | Commercial paper
Financial Assets:
Cash equivalents:	108,253	23,041
Recurring | Corporate bonds
Financial Assets:
Cash equivalents:	4,000
Recurring | Level I
Financial Assets:
Total measured at fair value	95,258	34,784
Recurring | Level I | Commitments
Financial Liabilities:
Convertible preferred stock warrant liability	0	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	0
Recurring | Level I | Money market funds
Financial Assets:
Cash equivalents:	95,258	34,784
Recurring | Level I | Commercial paper
Financial Assets:
Cash equivalents:		0
Recurring | Level I | Corporate bonds
Financial Assets:
Cash equivalents:	0
Recurring | Level II
Financial Assets:
Total measured at fair value	658,928	233,735
Recurring | Level II | Commitments
Financial Liabilities:
Convertible preferred stock warrant liability	0	0
Recurring | Level II | Corporate bonds
Financial Assets:
Short-term investments:	395,107	160,634
Recurring | Level II | Commercial paper
Financial Assets:
Short-term investments:	118,939	36,084
Recurring | Level II | U.S. government securities
Financial Assets:
Short-term investments:	32,629	13,976
Recurring | Level II | Money market funds
Financial Assets:
Cash equivalents:	0	0
Recurring | Level II | Commercial paper
Financial Assets:
Cash equivalents:	108,253	23,041
Recurring | Level II | Corporate bonds
Financial Assets:
Cash equivalents:	4,000
Recurring | Level III
Financial Assets:
Total measured at fair value	0	0
Recurring | Level III | Commitments
Financial Liabilities:
Convertible preferred stock warrant liability	924	4,295
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
Recurring | Level III | Corporate bonds
Financial Assets:
Cash equivalents:	$ 0
[1]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

FAIR VALUE MEASUREMENTS - Non-r

FAIR VALUE MEASUREMENTS - Non-recurring Basis (Details) - USD ($)	Apr. 30, 2018	Jul. 31, 2017
Convertible Debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unamortized discount	$ (144,378,000)
Unamortized debt issuance cost	(8,055,000)
Reported Value Measurement | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible senior notes, net	422,567,000	$ 0
Estimate of Fair Value Measurement | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible senior notes, net	$ 714,535,000	$ 0

FAIR VALUE MEASUREMENTS - Level

FAIR VALUE MEASUREMENTS - Level 3 Roll Forward (Details) - Commitments - USD ($) $ in Thousands	9 Months Ended
	Apr. 30, 2018	Apr. 30, 2017
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Contingent consideration—beginning balance	$ 4,295	$ 0
Assumed in a business combination	0	2,371
Change in fair value	3,371	(176)
Contingent consideration—ending balance	$ 924	$ 2,547

BALANCE SHEET COMPONENTS - Shor

BALANCE SHEET COMPONENTS - Short-Term Investments (Details) - USD ($) $ in Thousands	Apr. 30, 2018	Jul. 31, 2017	[1]
Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract]
Due within one year	$ 405,385
Due in one year through three years	141,290
Total	$ 546,675	$ 210,694
[1]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

BALANCE SHEET COMPONENTS - Prop

BALANCE SHEET COMPONENTS - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2018	Apr. 30, 2017	Apr. 30, 2018	Apr. 30, 2017		Jul. 31, 2017
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 193,995		$ 193,995			$ 146,973
Less: Accumulated depreciation and amortization	(117,673)		(117,673)			(88,901)
Total property and equipment, net	76,322		76,322			58,072	[1]
Depreciation and amortization			36,013	$ 27,934	[2]
Property, Plant and Equipment
Property, Plant and Equipment [Line Items]
Depreciation and amortization	11,300	$ 9,200	$ 31,900	$ 26,300
Computer, production, engineering and other equipment
Property, Plant and Equipment [Line Items]
Estimated Useful Life			36 months
Total property and equipment, gross	117,403		$ 117,403			85,280
Demonstration units
Property, Plant and Equipment [Line Items]
Estimated Useful Life			12 months
Total property and equipment, gross	52,508		$ 52,508			46,387
Leasehold improvements(1)
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	17,549		$ 17,549			10,562
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Estimated Useful Life			60 months
Total property and equipment, gross	$ 6,535		$ 6,535			$ 4,744
[1]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.
[2]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

BALANCE SHEET COMPONENTS - Good

BALANCE SHEET COMPONENTS - Goodwill (Details) $ in Thousands	9 Months Ended
	Apr. 30, 2018USD ($)
Goodwill [Roll Forward]
Balance as of July 31, 2017	$ 16,672	[1]
Balance as of April 30, 2018	88,324
Netsil Inc.
Goodwill [Roll Forward]
Acquired in acquisition	53,085
Minjar Inc.
Goodwill [Roll Forward]
Acquired in acquisition	$ 18,567
[1]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

BALANCE SHEET COMPONENTS - Inta

BALANCE SHEET COMPONENTS - Intangible Assets (Details) - USD ($) $ in Thousands	9 Months Ended
	Apr. 30, 2018	Jul. 31, 2017
Finite-lived intangible assets:
Finite-lived intangible assets, gross	$ 54,150	$ 12,130
Total intangible assets, gross	54,150	28,230
Less:
Accumulated amortization	(6,360)	(2,229)
Intangible assets, net	47,790	26,001	[1]
In-process R&D
Indefinite-lived intangible asset:
In-process R&D	0	16,100
Developed technology
Finite-lived intangible assets:
Finite-lived intangible assets, gross	47,500	7,300
Less:
Accumulated amortization	$ (4,821)	(1,314)
Developed technology | Minimum
Less:
Estimated life	5 years
Customer relationships
Finite-lived intangible assets:
Finite-lived intangible assets, gross	$ 6,650	4,830
Less:
Accumulated amortization	$ (1,539)	$ (915)
[1]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

BALANCE SHEET COMPONENTS - Futu

BALANCE SHEET COMPONENTS - Future Amortization Expense (Details) $ in Thousands	Apr. 30, 2018USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2018 (remaining three months)	$ 2,237
2,019	8,989
2,020	8,949
2,021	8,949
2,022	7,751
Thereafter	10,915
Total	$ 47,790

BALANCE SHEET COMPONENTS - Accr

BALANCE SHEET COMPONENTS - Accrued Compensation Benefits (Details) - USD ($) $ in Thousands	Apr. 30, 2018	Jul. 31, 2017
Employee-related Liabilities, Current [Abstract]
Accrued commissions	$ 16,767	$ 20,388
Accrued vacation	10,100	6,286
Contributions to ESPP withheld	7,581	14,371
Accrued bonus	9,187	7,342
Payroll taxes payable	8,627	3,434
Other	8,959	5,700
Total accrued compensation and benefits	$ 61,221	$ 57,521	[1]
[1]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

BALANCE SHEET COMPONENTS - Ac49

BALANCE SHEET COMPONENTS - Accrued Liabilities (Details) - USD ($) $ in Thousands	Apr. 30, 2018	Jul. 31, 2017
Other Liabilities Disclosure [Abstract]
Accrued professional services	$ 4,614	$ 4,167
Income taxes payable	2,903	3,873
Other	4,128	1,667
Total accrued expenses and other current liabilities	$ 11,645	$ 9,707	[1]
[1]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

CONVERTIBLE SENIOR NOTES - Proc

CONVERTIBLE SENIOR NOTES - Proceeds from Notes (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	9 Months Ended
	Jan. 31, 2018	Apr. 30, 2018	Apr. 30, 2018	Apr. 30, 2017	[1]
Debt Instrument [Line Items]
Payments for convertible note hedges			$ (143,175)	$ 0
Proceeds from issuance of warrants			87,975	$ 0
Convertible Debt
Debt Instrument [Line Items]
Principal amount	$ 575,000	$ 575,000	575,000
Less: initial purchasers' discount	(10,781)	(10,800)	(10,800)
Payments for convertible note hedges	(143,175)
Proceeds from issuance of warrants	87,975
Debt issuance cost, gross, noncurrent	707	700	700
Less: other issuance costs		$ (366)	$ (404)
Net proceeds	$ 508,312
[1]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

CONVERTIBLE SENIOR NOTES - Addi

CONVERTIBLE SENIOR NOTES - Additional Information (Details) $ / shares in Units, shares in Millions	1 Months Ended	9 Months Ended
	Jan. 31, 2018USD ($)day	Apr. 30, 2018USD ($)$ / sharesshares	Apr. 30, 2017USD ($)	[1]
Debt Instrument [Line Items]
Number of securities called by warrants or rights (in shares) | shares		11.8
Payments for convertible note hedges		$ 143,175,000	$ 0
Exercise price of warrants (in dollars per share) | $ / shares		$ 73.46
Proceeds from issuance of warrants		$ 87,975,000	$ 0
Transaction cost		$ (55,200,000)
Dilutive effect of convertible securities (in shares) | shares		3.9
Share price threshold for dilutive effect of convertible debt (in dollars per share) | $ / shares		$ 73.46
Dilutive effect of $10 increase in share price (in shares) | shares		4.9
Dilutive effect of warrants (in shares) | shares		1.4
Share price threshold for dilutive effect of warrants (in dollars per share) | $ / shares		$ 83.46
Common Class A
Debt Instrument [Line Items]
Share price (in dollars per share) | $ / shares		$ 50.59
Convertible Debt
Debt Instrument [Line Items]
Face amount		$ 575,000,000
Interest rate, stated percentage		0.00%
Convertible debt		$ 75,000,000
Unpaid debt issuance cost		$ 400,000
Conversion ratio	20.4705
Conversion price (in dollars per share) | $ / shares		$ 48.85
Threshold trading days | day	20
Threshold consecutive trading days | day	30
Threshold percentage of stock price trigger	130.00%
Redemption price, percentage	100.00%
Carrying amount of liability component		$ 423,400,000
Carrying amount of equity component		151,600,000
Unamortized discount and debt issuance costs, net		11,500,000
Unamortized discount, net	$ 10,781,000	10,800,000
Debt issuance cost, gross, noncurrent	$ 707,000	700,000
Transaction costs attributable to liability component		8,500,000
Transaction costs attributable to equity component		$ 3,000,000
Debt instrument, term	56 months
Payments for convertible note hedges	$ 143,175,000
Proceeds from issuance of warrants	$ 87,975,000
Convertible Debt | Common Class A
Debt Instrument [Line Items]
Threshold percentage of stock price trigger	98.00%
[1]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

CONVERTIBLE SENIOR NOTES - Comp

CONVERTIBLE SENIOR NOTES - Components of Notes (Details) - USD ($) $ in Thousands	Apr. 30, 2018	Jan. 31, 2018	Jul. 31, 2017	[1]
Debt Instrument [Line Items]
Convertible senior notes, net	$ 422,567		$ 0
Convertible Debt
Debt Instrument [Line Items]
Principal amount	575,000	$ 575,000
Unamortized discount	(144,378)
Unamortized debt issuance cost	(8,055)
Carrying amount of the equity component	$ 148,598
Effective interest rate	6.62%
Payments of offering costs	$ (3,000)
[1]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

CONVERTIBLE SENIOR NOTES - Inte

CONVERTIBLE SENIOR NOTES - Interest Expense (Details) - Convertible Debt - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Apr. 30, 2018	Apr. 30, 2018
Debt Instrument [Line Items]
Interest expense related to amortization of debt discount	$ 6,550	$ 7,250
Interest expense related to amortization of debt issuance costs	366	404
Total interest expense	$ 6,916	$ 7,654

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Thousands	Apr. 30, 2018	Jul. 31, 2017
Loss Contingencies [Line Items]
2018 (remaining three months)		$ 5,784
2,019		22,259
2,020		19,007
2,021		17,571
2,022		15,856
Thereafter		25,111
Total		$ 105,588
Non-contract Vendors
Loss Contingencies [Line Items]
Purchase obligation	$ 25,400
Contract Manufacturer
Loss Contingencies [Line Items]
Purchase obligation	$ 54,700

STOCKHOLDERS_ EQUITY (Details)

STOCKHOLDERS’ EQUITY (Details)	Apr. 30, 2018voteclass$ / sharesshares	Jul. 31, 2017$ / sharesshares
Class of Stock [Line Items]
Preferred stock, shares authorized (in shares)	200,000,000	200,000,000
Preferred stock, par value (in dollars per share) | $ / shares	$ 0.000025	$ 0.000025
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, number of classes of stock | class	2
Common stock, shares authorized (in shares)	1,200,000,000	1,200,000,000
Common stock, par value (in dollars per share) | $ / shares	$ 0.000025	$ 0.000025
Common stock, shares issued (in shares)	170,282,321	154,636,520
Common stock, shares outstanding (in shares)	170,282,321	154,636,520
Common Class A
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	1,000,000,000	1,000,000,000
Common stock, shares issued (in shares)	132,152,095	93,570,171
Common stock, shares outstanding (in shares)	132,152,095	93,570,171
Common stock number of votes per share | vote	1
Common Class B
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares issued (in shares)	38,130,226	61,066,349
Common stock, shares outstanding (in shares)	38,130,226	61,066,349
Common stock number of votes per share | vote	10

EQUITY AWARD PLANS - Additional

EQUITY AWARD PLANS - Additional Information (Details)	Aug. 01, 2017shares	Jun. 08, 2018$ / sharesshares	Oct. 31, 2016USD ($)purchase_periodshares	Apr. 30, 2018USD ($)$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercises in period (in shares)				7,632,405
Weighted average exercise price (in dollars per share) | $ / shares				$ 3.83
Options outstanding (in shares)				12,492,423
Outstanding options, weighted average exercise price (in dollars per share) | $ / shares				$ 4.99
Contractual term				5 years 10 months 24 days
Options outstanding, intrinsic value | $				$ 569,700,000
Compensation not yet recognized | $				$ 531,800,000
Period for recognition (in years)				2 years 7 months 6 days
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)				11,374,865
Granted (in dollars per share) | $ / shares				$ 34.35
Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares)				1,682,461
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%
Stock repurchased during period (in shares)				2,417,850
Stock repurchased during period, value | $				$ 39,000,000
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%
Number of additional shares authorized	1,546,365
2016 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future issuance (in shares)				48,709,055
Number of shares available for grant (in shares)				13,468,557
2016 Plan | Common Class A
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 additional shares authorized	7,731,826
Subsequent Event | RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		1,902,592
Granted (in dollars per share) | $ / shares		$ 56.61

EQUITY AWARD PLANS - RSU (Detai

EQUITY AWARD PLANS - RSU (Details) - RSUs - $ / shares	9 Months Ended
	Apr. 30, 2018	Jul. 31, 2017
Number of Shares
Outstanding, beginning balance (in shares)	17,376,090
Granted (in shares)	11,374,865
Released (in shares)	(4,288,257)
Canceled/forfeited (in shares)	(1,748,803)
Outstanding, ending balance (in shares)	22,713,895
Grant Date Fair Value per Share
Outstanding (in dollars per share)	$ 26.27	$ 18.85
Granted (in dollars per share)	34.35
Released (in dollars per share)	19.13
Canceled/forfeited (in dollars per share)	$ 22.54

EQUITY AWARD PLANS - ESPP (Deta

EQUITY AWARD PLANS - ESPP (Details) - Employee Stock Purchase Plan	9 Months Ended
	Apr. 30, 2018	Apr. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)	22 days	22 days
Risk-free interest rate	1.40%	0.60%
Volatility	49.80%	51.00%
Dividend yield	0.00%	0.00%

EQUITY AWARD PLANS - Stock Base

EQUITY AWARD PLANS - Stock Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2018	Apr. 30, 2017	Apr. 30, 2018	Apr. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	$ 44,946	$ 50,351	$ 122,472	$ 193,686
Cost of revenue, product
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	634	610	1,888	2,424
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	1,951	2,471	6,156	8,210
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	18,051	15,726	47,759	65,145
Research and development
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	16,474	27,041	49,039	89,826
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	$ 7,836	$ 4,503	$ 17,630	$ 28,081

INCOME TAXES (Details)

INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Apr. 30, 2018	Apr. 30, 2017		Apr. 30, 2018	Apr. 30, 2017	[1]
Income Tax Disclosure [Abstract]
Provision for (benefit from) income taxes	$ (843)	$ 2,639	[1]	$ 3,329	$ 3,297
Valuation allowance release		$ 1,500		$ 3,900
[1]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

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			9 Months Ended
	Apr. 30, 2018	Apr. 30, 2017	[2]	Apr. 30, 2018	Apr. 30, 2017	[2]
Earnings Per Share [Abstract]
Net loss	$ (85,674)	$ (96,835)	[1]	$ (209,792)	$ (313,506)	[1],[3]
Weighted-average shares used in computing net loss per share attributable to common stockholders—basic and diluted (in shares)	166,845,544	144,054,432		161,709,365	119,851,586
Net loss per share attributable to common stockholders—basic and diluted (in dollars per share)	$ (0.51)	$ (0.67)		$ (1.30)	$ (2.62)
[1]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.
[2]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.
[3]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

NET LOSS PER SHARE - Antidiluti

NET LOSS PER SHARE - Antidilutive Securities (Details) - shares	9 Months Ended
	Apr. 30, 2018	Apr. 30, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	36,931,953	43,096,924
Outstanding stock options and RSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	35,206,318	41,204,043
Employee stock purchase plan
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	1,341,470	1,474,965
Contingently issuable shares pursuant to a business combination
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	276,625	0
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)	73,360	383,736
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)	34,180	34,180

SEGMENT INFORMATION (Details)

SEGMENT INFORMATION (Details) $ in Thousands	3 Months Ended			9 Months Ended
	Apr. 30, 2018USD ($)	Apr. 30, 2017USD ($)		Apr. 30, 2018USD ($)segment	Apr. 30, 2017USD ($)		Jul. 31, 2017USD ($)
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of reportable segments | segment				1
Total revenue	$ 289,413	$ 205,670	[1]	$ 851,709	$ 593,445	[1]
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	135,276	114,323		488,416	325,533
Long-lived assets	118,600			118,600			$ 63,300
Europe, the Middle East and Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	74,916	39,271		164,089	99,289
Asia-Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	68,622	45,443		172,774	141,233
Other Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 10,599	$ 6,633		$ 26,430	$ 27,390
[1]	See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.

RELATED PARTY TRANSACTIONS (Det

RELATED PARTY TRANSACTIONS (Details)	Apr. 30, 2018
Nutanix, Inc. | Lightspeed Venture Partners | Lightspeed Venture Partners
Related Party Transaction [Line Items]
Ownership percentage by noncontrolling owners	6.80%