Alteryx Inc - Ordinary Shares (AYX) 10-Q 10 May 18 2018 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2018	May 03, 2018
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1
Trading Symbol	AYX
Entity Registrant Name	Alteryx, Inc.
Entity Central Index Key	1,689,923
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Class A Common Stock [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		28,653,786
Class B Common Stock [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		31,951,729

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Revenue	$ 42,821	$ 28,545
Cost of revenue	5,004	4,826
Gross profit	37,817	23,719
Operating expenses:
Research and development	10,768	6,022
Sales and marketing	23,102	15,628
General and administrative	9,795	7,683
Total operating expenses	43,665	29,333
Loss from operations	(5,848)	(5,614)
Other income, net	768	97
Loss before provision for income taxes	(5,080)	(5,517)
Provision for income taxes	106	150
Net loss	(5,186)	(5,667)
Less: Accretion of Series A redeemable convertible preferred stock		(1,983)
Net loss attributable to common stockholders	$ (5,186)	$ (7,650)
Net loss per share attributable to common stockholders, basic and diluted	$ (0.09)	$ (0.22)
Weighted-average shares used to compute net loss per share attributable to common stockholders, basic and diluted	60,052	35,126
Net loss	$ (5,186)	$ (5,667)
Other comprehensive loss, net of tax:
Net unrealized holding loss on investments, net of tax	(167)	(11)
Foreign currency translation adjustments, net of tax	(3)	(48)
Other comprehensive loss, net of tax	(170)	(59)
Total comprehensive loss	$ (5,356)	$ (5,726)

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 59,077	$ 119,716
Short-term investments	119,810	54,386
Accounts receivable, net of allowance for doubtful accounts and sales reserves of $1,681 and $1,714 as of March 31, 2018 and December 31, 2017, respectively	29,345	49,797
Deferred commissions	11,541	11,213
Prepaid expenses and other current assets	9,965	7,227
Total current assets	229,738	242,339
Property and equipment, net	8,603	7,492
Long-term investments	26,856	19,964
Goodwill	9,867	8,750
Intangible assets, net	10,856	7,995
Other assets	2,757	4,263
Deferred incomes taxes, net	612	613
Total assets	289,289	291,416
Current liabilities:
Accounts payable	1,193	522
Accrued payroll and payroll related liabilities	9,262	11,835
Accrued expenses and other current liabilities	7,770	8,270
Deferred revenue	108,235	110,213
Total current liabilities	126,460	130,840
Deferred revenue	3,479	3,545
Other liabilities	3,000	3,313
Deferred income tax, net	222	214
Total liabilities	133,161	137,912
Stockholders' equity:
Preferred stock, $0.0001 par value: 10,000 shares authorized as of March 31, 2018 and December 31, 2017, respectively; no shares issued and outstanding as of March 31, 2018 and December 31, 2017, respectively	0	0
Common stock, $0.0001 par value: 500,000 Class A shares authorized, 28,244 and 26,687 shares issued and outstanding, as of March 31, 2018 and December 31, 2017, respectively; 500,000 Class B shares authorized, 32,344 and 32,948 shares issued and outstanding as of March 31, 2018 and December 31, 2017, respectively	6	5
Additional paid-in capital	266,957	257,399
Accumulated deficit	(110,311)	(103,546)
Accumulated other comprehensive loss	(524)	(354)
Total stockholders' equity	156,128	153,504
Total liabilities and stockholders' equity	$ 289,289	$ 291,416

Condensed Consolidated Balance4

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Allowance for doubtful accounts and sales reserves	$ 1,681	$ 1,714
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares authorized (in shares)	10,000	10,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Class A Common Stock [Member]
Common stock par value per share (in dollars per share)	$ 0.0001	$ 0.0001
Common stock shares authorized (in shares)	500,000	500,000
Common Stock shares issued (in shares)	28,244	26,687
Common stock shares outstanding (in shares)	28,244	26,687
Class B Common Stock [Member]
Common stock par value per share (in dollars per share)	$ 0.0001	$ 0.0001
Common stock shares authorized (in shares)	500,000	500,000
Common Stock shares issued (in shares)	32,344	32,948
Common stock shares outstanding (in shares)	32,344	32,948

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Stockholders Equity - 3 months ended Mar. 31, 2018 - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]
Beginning Balance at Dec. 31, 2017	$ 153,504	$ 5	$ 257,399	$ (103,546)	$ (354)
Beginning Balance, Shares at Dec. 31, 2017		59,635,000
Cumulative effect of adoption of accounting standards	(1,438)		141	(1,579)
Shares issued pursuant to stock awards	4,973	$ 1	4,972
Shares issued pursuant to stock awards, shares		934,000
Stock-based compensation	3,789		3,789
Equity settled contingent consideration, value	$ 656		656
Equity settled contingent consideration, shares	18,869	19,000
Cumulative translation adjustment	$ (3)				(3)
Unrealized loss on investments	(167)				(167)
Net loss	(5,186)			(5,186)
Ending Balance at Mar. 31, 2018	$ 156,128	$ 6	$ 266,957	$ (110,311)	$ (524)
Ending Balance, Shares at Mar. 31, 2018		60,588,000

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities:
Net loss	$ (5,186)	$ (5,667)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	1,301	566
Stock-based compensation	3,789	1,942
Provision for doubtful accounts, net of recoveries	(108)	350
Change in fair value of contingent consideration	293
Loss on disposal of assets		30
Changes in operating assets and liabilities, net of effect of business acquisitions:
Accounts receivable	20,553	11,175
Deferred commissions	(218)	860
Prepaid expenses and other current assets and other assets	(2,584)	(1,220)
Accounts payable	443	(525)
Accrued payroll and payroll related liabilities	(2,636)	(3,506)
Accrued expenses and other current liabilities	(1,658)	977
Deferred revenue	(1,887)	(118)
Other liabilities	(1)	159
Net cash provided by operating activities	12,101	5,023
Cash flows from investing activities:
Purchases of property and equipment	(1,416)	(508)
Cash paid in business acquisitions, net of cash acquired	(3,542)	(3,884)
Purchases of investments	(83,591)	(16,035)
Maturities of investments	11,000	8,524
Net cash used in investing activities	(77,549)	(11,903)
Cash flows from financing activities:
Proceeds from initial public offering, net of underwriting commissions and discounts		117,180
Payment of initial public offering costs		(797)
Payment of holdback funds from acquisition	(250)
Principal payments on capital lease obligations	(83)	(82)
Proceeds from exercise of stock options	4,973	884
Net cash provided by financing activities	4,640	117,185
Effect of exchange rate changes on cash and cash equivalents	169	(25)
Net increase (decrease) in cash and cash equivalents	(60,639)	110,280
Cash and cash equivalents-beginning of period	119,716	31,306
Cash and cash equivalents-end of period	59,077	141,586
Supplemental disclosure of noncash investing and financing activities:
Property and equipment recorded in accounts payable	360	356
Consideration for business acquisition initially included in accrued expenses and other current liabilities and other liabilities	1,200	1,660
Contingent consideration settled through issuance of common stock	$ 656
Accretion of Series A redeemable convertible preferred stock		1,983
Deferred initial public offering costs recorded in accounts payable and accrued expenses		1,329
Series A Redeemable Convertible Preferred Stock [Member]
Supplemental disclosure of noncash investing and financing activities:
Accretion of Series A redeemable convertible preferred stock		1,983
Conversion of Series A redeemable convertible preferred stock to common shares		$ 101,165

Business

Business	3 Months Ended
	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business	1. Business Our Company Alteryx, Inc. and its subsidiaries, or we, our, or us, are improving business through data science and analytics. Our end-to-end ease-of-use, Basis of Presentation Our unaudited interim condensed consolidated financial statements are presented in accordance with accounting standards generally accepted in the United States of America, or U.S. GAAP, for interim financial information. Certain information and disclosures normally included in consolidated financial statements presented in accordance with U.S. GAAP have been condensed or omitted. Accordingly, these unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the related notes included in our Annual Report on Form 10-K The operating results for the three months ended March 31, 2018 are not necessarily indicative of the results expected for the full year ending December 31, 2018.

Significant Accounting Policies

Significant Accounting Policies	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
Significant Accounting Policies	2. Significant Accounting Policies There have been no changes to our accounting policies disclosed in our audited consolidated financial statements and the related notes for the year ended December 31, 2017 other than, during the three months ended March 31, 2018, we adopted new accounting guidance related to stock-based compensation and to income tax effects of intra-entity transfers of assets other than inventory. See “Recently Adopted Accounting Pronouncements” below. Use of Estimates The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent liabilities at the date of the condensed consolidated financial statements, and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from these estimates and assumptions. On an ongoing basis, our management evaluates estimates and assumptions based on historical data and experience, as well as various other factors that our management believes to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities. Variable Interest Entities In accordance with ASC 810, Consolidation As of December 31, 2017 and March 31, 2018, we determined that two and one of our distributors were VIEs under the guidance of ASC 810, Consolidation, Recently Adopted Accounting Pronouncements Under the Jumpstart our Business Startups Act, or the JOBS Act, we meet the definition of an emerging growth company, or EGC. We have elected to use this extended transition period for complying with new or revised accounting standards pursuant to Section 107(b) of the JOBS Act. In October 2016, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update, or ASU, 2016-16, Intra-Entity Transfers of Assets Other Than Inventory Income Taxes, 2016-16 In March 2016, the FASB issued ASU 2016-09, Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting 2016-09, 2016-09 paid-in-capital Recently Issued Accounting Pronouncements In January 2017, the FASB issued ASU 2017-04, Simplifying the Test for Goodwill Impairment In January 2017, the FASB issued ASU 2017-01, Clarifying the Definition of a Business In November 2016, the FASB issued ASU 2016-18, Restricted Cash In August 2016, the FASB issued ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments In February 2016, the FASB issued ASU 2016-02, Leases 2016-02, right-of-use right-of-use In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers 2015-14, 2014-09

Business Combinations

Business Combinations	3 Months Ended
	Mar. 31, 2018
Business Combinations [Abstract]
Business Combinations	3. Business Combinations In February 2018, we acquired 100% of the outstanding equity of Alteryx ANZ Pty Limited, or ANZ, in Sydney, Australia, our exclusive master distributor in Australia and New Zealand. The total purchase consideration for the acquisition was approximately $4.8 million consisting of (i) $3.3 million in cash consideration, (ii) $1.2 million in contingent consideration payable in cash, and (iii) $0.3 million for the settlement of preexisting relationships. The condensed consolidated financial statements include the results of operations of the acquired company commencing as of the acquisition date. The preliminary allocation of the total purchase price for this acquisition was $0.3 million of net tangible assets, $3.4 million of identifiable intangible assets, consisting of customer contracts and relationships, and $1.1 million of residual goodwill, which was not tax deductible. This allocation is preliminary. The Company expects to complete the purchase price allocation during the three months ending June 30, 2018. We determined the preliminary fair value of the customer contracts and relationships acquired in the acquisition using the multiple period excess earnings model. This model utilizes certain unobservable inputs, including discounted cash flows, historical and projected financial information, and customer attrition rates, classified as Level 3 measurements as defined by ASC 820, Fair Value Measurements and Disclosures, A portion of the consideration for the acquisition is subject to earn-out earn-out earn-out In January 2017, we acquired 100% of the outstanding equity of Semanta, s.r.o., or Semanta. The total purchase consideration was approximately $5.6 million and consisted primarily of $3.1 million of completed technology intangible assets, $2.9 million of goodwill, and $0.4 million of net liabilities assumed. Pro forma information and revenue and operating results of the acquired companies have not been presented for these acquisitions as the impact is not material to our condensed consolidated financial statements.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements	4. Fair Value Measurements We utilize valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible. We determine fair value based on assumptions that market participants would use in pricing an asset or liability in the principal or most advantageous market. When considering market participant assumptions in fair value measurements, the following fair value hierarchy distinguishes between observable and unobservable inputs, which are categorized in one of the following levels: Level 1 Unadjusted quoted prices in active markets for identical assets or liabilities at the measurement date. Level 2 Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active near the measurement date; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. The fair value of our money market funds was determined based on “Level 1” inputs. The fair value of commercial paper, certificates of deposit, U.S. Treasury and agency bonds, and corporate bonds were determined based on “Level 2” inputs. The valuation techniques used to measure the fair value of commercial paper and certificates of deposit included observable market-based inputs for similar assets, which primarily include yield curves and time-to-maturity two-sided There were no marketable securities measured on a recurring basis in the “Level 3” category. We have not elected the fair value option as prescribed by ASC 825, The Fair Value Option for Financial Assets and Financial Liabilities Instruments Measured at Fair Value on a Recurring Basis. As of March 31, 2018 Cost Gross Fair Value Cash and Short-term Long-term Cash $ 37,302 $ — $ 37,302 $ 37,302 $ — $ — Level 1: Money market funds 11,082 — 11,082 11,082 — — Subtotal 11,082 — 11,082 11,082 — — Level 2: Commercial paper 3,495 — 3,495 2,749 746 — Certificates of deposit 4,052 — 4,052 — 1,500 2,552 U.S. Treasury and agency bonds 103,537 (266 ) 103,271 7,944 76,425 18,902 Corporate bonds 46,668 (127 ) 46,541 — 41,139 5,402 Subtotal 157,752 (393 ) 157,359 10,693 119,810 26,856 Level 3 — — — — — — Total $ 206,136 $ (393 ) $ 205,743 $ 59,077 $ 119,810 $ 26,856 As of December 31, 2017 Cost Gross Fair Value Cash and Short-term Long-term Cash $ 100,651 $ — $ 100,651 $ 100,651 $ — $ — Level 1: Money market funds 19,065 — 19,065 19,065 — — Subtotal 19,065 — 19,065 19,065 — — Level 2: U.S. Treasury and agency bonds 44,968 (176 ) 44,792 — 25,923 18,869 Corporate bonds 29,608 (50 ) 29,558 — 28,463 1,095 Subtotal 74,576 (226 ) 74,350 — 54,386 19,964 Level 3 — — — — — — Total $ 194,292 $ (226 ) $ 194,066 $ 119,716 $ 54,386 $ 19,964 There were no transfers between Level 1, Level 2, or Level 3 securities during the three months ended March 31, 2018. As of March 31, 2018, there were 64 securities with a fair value of $139.6 million in an unrealized loss position for less than 12 months. The gross unrealized losses of $0.4 million as of March 31, 2018 were due to changes in market rates, and we have determined the losses are temporary in nature. All the long-term investments had maturities of between one and two years in duration as of March 31, 2018. Cash and cash equivalents, restricted cash, and investments as of March 31, 2018 and December 31, 2017 held domestically were approximately $198.1 million and $181.3 million, respectively. Contingent Consideration. earn-out The following table presents a reconciliation of the beginning and ending balances of acquisition-related accrued contingent consideration using significant unobservable inputs (Level 3) for the three months ended March 31, 2018 and 2017 (in thousands): Three Months Ended March 31, 2018 2017 Beginning balance $ 975 $ — Obligations assumed 1,200 1,160 Change in fair value 293 — Settlement (656 ) — Ending balance $ 1,812 $ 1,160 Upon the achievement of certain milestones in connection with our acquisition of Semanta, we released 18,869 shares of Class A common stock to the former shareholders of Semanta in the three months ended March 31, 2018. In addition, 5,381 shares were earned, but held back for customary indemnification matters in accordance with the acquisition agreement, and the value of the shares is presented within additional paid-in Instruments Not Recorded at Fair Value on a Recurring Basis. Assets and Liabilities Recorded at Fair Value on a Non-Recurring non-recurring

Goodwill and Intangible Assets

Goodwill and Intangible Assets	3 Months Ended
	Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	5. Goodwill and Intangible Assets The change in carrying amount of goodwill for the three months ended March 31, 2018 was as follows (in thousands): Goodwill as of December 31, 2017 $ 8,750 Goodwill recorded in connection with acquisition 1,104 Effects of foreign currency translation 13 Goodwill as of March 31, 2018 $ 9,867 Intangible assets consisted of the following (in thousands, except years): As of March 31, 2018 Weighted Gross Carrying Accumulated Net Carrying Customer Relationships 6.9 $ 3,411 $ (75 ) $ 3,336 Completed Technology 5.7 9,180 (1,660 ) 7,520 $ 12,591 $ (1,735 ) $ 10,856 As of December 31, 2017 Average Useful Gross Carrying Accumulated Net Carrying Customer Relationships 2.0 $ 40 $ (12 ) $ 28 Completed Technology 5.7 9,180 (1,213 ) 7,967 $ 9,220 $ (1,225 ) $ 7,995 We classified intangible asset amortization expense in the accompanying consolidated statements of operations and comprehensive loss as follows (in thousands): Three Months Ended March 31, 2018 2017 Cost of revenue $ 446 $ 65 Sales and marketing 63 — Total $ 509 $ 65 The following table presents our estimates of remaining amortization expense for finite-lived intangible assets at March 31, 2018 (in thousands): Remainder of 2018 $ 1,740 2019 2,298 2020 1,985 2021 1,774 2022 1,228 Thereafter 1,831 Total amortization expense $ 10,856

Equity Awards

Equity Awards	3 Months Ended
	Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Equity Awards	6. Equity Awards Stock Options Stock option activity during the three months ended March 31, 2018 consisted of the following (in thousands, except weighted-average information): Options Weighted- Options outstanding at December 31, 2017 5,196 $ 8.70 Granted 652 27.33 Exercised (791 ) 4.50 Cancelled/forfeited (92 ) 11.58 Options outstanding at March 31, 2018 4,965 $ 11.77 As of March 31, 2018, there was $18.0 million of unrecognized compensation cost related to unvested stock options, which is expected to be recognized over a weighted-average period of 3.1 years. Restricted Stock Units RSU activity during the three months ended March 31, 2018 consisted of the following (in thousands, except weighted-average information): Awards Weighted- RSUs outstanding at December 31, 2017 464 $ 16.81 Granted 743 31.97 Vested (68 ) 15.50 Cancelled/forfeited (27 ) 19.35 RSUs outstanding at March 31, 2018 1,112 $ 26.96 As of March 31, 2018, total unrecognized compensation expense related to unvested RSUs was approximately $27.3 million, which is expected to be recognized over a weighted-average period of 3.7 years. We classified stock-based compensation expense in the accompanying consolidated statements of operations and comprehensive loss as follows (in thousands): Three Months Ended March 31, 2018 2017 Cost of revenue $ 139 $ 121 Research and development 1,233 236 Sales and marketing 1,157 659 General and administrative 1,260 926 Total $ 3,789 $ 1,942

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	7. Commitments and Contingencies Leases We have various non-cancelable Indemnification In the ordinary course of business, we enter into agreements in which we may agree to indemnify other parties with respect to certain matters, including losses resulting from claims of intellectual property infringement, damages to property or persons, business losses, or other liabilities. In addition, we have entered into indemnification agreements with our directors, executive officers, and certain other employees that will require us to indemnify them against liabilities that may arise by reason of their status or service as directors, officers, or employees. The term of these indemnification agreements with our directors, executive officers, and other employees, are generally perpetual after execution of the agreement. The maximum potential amount of future payments we could be required to make under these indemnification provisions is unlimited; however, we maintain insurance that reduces our exposure and enables us to recover a portion of any future amounts paid. As of March 31, 2018 and December 31, 2017, we have not accrued a liability for these indemnification provisions because the likelihood of incurring a payment obligation, if any, in connection with these arrangements is not probable or reasonably estimable. Litigation From time to time, we may be involved in lawsuits, claims, investigations, and proceedings, consisting of intellectual property, commercial, employment, and other matters, which arise in the ordinary course of business. Other than the matters described below, we are not currently party to any material legal proceedings or claims, nor are we aware of any pending or threatened legal proceedings or claims that could have a material adverse effect on our business, operating results, cash flows, or financial condition should such legal proceedings or claims be resolved unfavorably. On December 19, 2017, we disclosed that individuals with an Amazon Web Services, or AWS, login could have had access to a third-party marketing dataset that provided consumer marketing information intended to help marketing professionals advertise and sell their products, or the AWS Matter. This dataset is commercially available and provides some location information, contact information and other estimated information that is used for marketing purposes. It does not include names, credit card numbers, social security numbers, bank account information or passwords. To date, four putative consumer class action lawsuits have been filed against us in U.S. federal courts relating to the AWS Matter: (1) Kacur v. Alteryx, Inc. 8:17-cv-2222 Jackson v. Alteryx, Inc. 3:17-cv-02021 Foskaris v. Alteryx, Inc. 2:17-cv-03088 Ruderman et al. v. Alteryx, Inc. 8:18-cv-00022 Kacur, Jackson, Foskaris Ruderman common-law

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	8. Income Taxes The following table presents details of the provision for income taxes and our effective tax rates (in thousands except percentages): Three Months Ended March 31, 2018 2017 Provision for income taxes $ 106 $ 150 Effective tax rate 2.1 % 2.7 % We account for income taxes according to ASC 740, Income Taxes pre-tax year-to-date We evaluate whether to record a valuation allowance against our deferred tax assets by considering all available positive and negative evidence, using a “more likely than not” realization standard, including our cumulative losses, and the amount and timing of future taxable income. Based on our review, we will continue to maintain a full valuation allowance against our U.S. deferred tax assets. Neither we nor any of our subsidiaries are currently under examination from tax authorities in the jurisdictions in which we do business.

Basic and Diluted Net Loss Per

Basic and Diluted Net Loss Per Share	3 Months Ended
	Mar. 31, 2018
Earnings Per Share [Abstract]
Basic and Diluted Net Loss Per Share	9. Basic and Diluted Net Loss Per Share Diluted net loss per share attributable to common stockholders adjusts basic net loss per share for the potentially dilutive impact of stock options and convertible preferred stock. As we have reported losses attributable to common stockholders for all periods presented, all potentially dilutive securities are antidilutive and accordingly, basic net loss per share equals diluted net loss per share. Basic and diluted net loss per share attributable to common stockholders for Class A and Class B common stock were the same because they were entitled to the same liquidation and dividend rights. The following weighted-average equivalent shares of common stock were excluded from the diluted net loss per share calculation because their inclusion would have been anti-dilutive (in thousands): Three Months Ended March 31, 2018 2017 Options to purchase common stock 5,477 6,170 Unvested restricted stock units 794 379 Conversion of convertible preferred stock — 13,345 Contingently issuable shares 21 — Total shares excluded from net loss per share 6,292 19,894

Segment and Geographic Informat

Segment and Geographic Information	3 Months Ended
	Mar. 31, 2018
Segment Reporting [Abstract]
Segment and Geographic Information	10. Segment and Geographic Information Operating segments are defined as components of an enterprise for which separate financial information is evaluated regularly by the chief operating decision maker, or CODM, who is our chief executive officer, in deciding how to allocate resources and assess our financial and operational performance. Our CODM evaluates our financial information and resources and assesses the performance of these resources on a consolidated and aggregated basis. As a result, we have determined that our business operates in a single operating segment. Our operations outside the United States include sales offices in Australia, Canada, Czech Republic, France, Germany, Singapore, and the United Kingdom, and a research and development center in Ukraine. Revenue by location is determined by the billing address of the customer. The following sets forth our revenue by geographic region (in thousands): Three Months Ended March 31, 2018 2017 United States $ 31,421 $ 22,596 International 11,400 5,949 Total $ 42,821 $ 28,545 Revenue attributable to the United Kingdom comprised 10.8% and 9.0% of total revenue for the three months ended March 31, 2018 and 2017, respectively. Other than the United Kingdom, no other countries outside the United States comprised more than 10% of revenue for any of the periods presented.

Significant Accounting Polici17

Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Use of Estimates	Use of Estimates The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent liabilities at the date of the condensed consolidated financial statements, and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from these estimates and assumptions. On an ongoing basis, our management evaluates estimates and assumptions based on historical data and experience, as well as various other factors that our management believes to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities.
Variable Interest Entities	Variable Interest Entities In accordance with ASC 810, Consolidation As of December 31, 2017 and March 31, 2018, we determined that two and one of our distributors were VIEs under the guidance of ASC 810, Consolidation,
Recent Accounting Pronouncements	Recently Adopted Accounting Pronouncements Under the Jumpstart our Business Startups Act, or the JOBS Act, we meet the definition of an emerging growth company, or EGC. We have elected to use this extended transition period for complying with new or revised accounting standards pursuant to Section 107(b) of the JOBS Act. In October 2016, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update, or ASU, 2016-16, Intra-Entity Transfers of Assets Other Than Inventory Income Taxes, 2016-16 In March 2016, the FASB issued ASU 2016-09, Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting 2016-09, 2016-09 paid-in-capital Recently Issued Accounting Pronouncements In January 2017, the FASB issued ASU 2017-04, Simplifying the Test for Goodwill Impairment In January 2017, the FASB issued ASU 2017-01, Clarifying the Definition of a Business In November 2016, the FASB issued ASU 2016-18, Restricted Cash In August 2016, the FASB issued ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments In February 2016, the FASB issued ASU 2016-02, Leases 2016-02, right-of-use right-of-use In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers 2015-14, 2014-09
Fair Value Measurements	Fair Value Measurements We utilize valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible. We determine fair value based on assumptions that market participants would use in pricing an asset or liability in the principal or most advantageous market. When considering market participant assumptions in fair value measurements, the following fair value hierarchy distinguishes between observable and unobservable inputs, which are categorized in one of the following levels: Level 1 Unadjusted quoted prices in active markets for identical assets or liabilities at the measurement date. Level 2 Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active near the measurement date; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. The fair value of our money market funds was determined based on “Level 1” inputs. The fair value of commercial paper, certificates of deposit, U.S. Treasury and agency bonds, and corporate bonds were determined based on “Level 2” inputs. The valuation techniques used to measure the fair value of commercial paper and certificates of deposit included observable market-based inputs for similar assets, which primarily include yield curves and time-to-maturity two-sided There were no marketable securities measured on a recurring basis in the “Level 3” category. We have not elected the fair value option as prescribed by ASC 825, The Fair Value Option for Financial Assets and Financial Liabilities
Income Taxes	We account for income taxes according to ASC 740, Income Taxes pre-tax year-to-date We evaluate whether to record a valuation allowance against our deferred tax assets by considering all available positive and negative evidence, using a “more likely than not” realization standard, including our cumulative losses, and the amount and timing of future taxable income. Based on our review, we will continue to maintain a full valuation allowance against our U.S. deferred tax assets. Neither we nor any of our subsidiaries are currently under examination from tax authorities in the jurisdictions in which we do business.
Segment and Geographic Information	Segment and Geographic Information Operating segments are defined as components of an enterprise for which separate financial information is evaluated regularly by the chief operating decision maker, or CODM, who is our chief executive officer, in deciding how to allocate resources and assess our financial and operational performance. Our CODM evaluates our financial information and resources and assesses the performance of these resources on a consolidated and aggregated basis. As a result, we have determined that our business operates in a single operating segment.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Summary of Cash and Cash Equivalents and Investments' Costs, Gross Unrealized Gains (Losses), and Fair Value by Major Security Type Recorded as Cash and Cash Equivalents or Short-Term or Long-Term Investments	The following tables present our cash and cash equivalents and investments’ costs, gross unrealized losses, and fair value by major security type recorded as cash and cash equivalents or short-term or long-term investments as of March 31, 2018 and December 31, 2017 (in thousands): As of March 31, 2018 Cost Gross Fair Value Cash and Short-term Long-term Cash $ 37,302 $ — $ 37,302 $ 37,302 $ — $ — Level 1: Money market funds 11,082 — 11,082 11,082 — — Subtotal 11,082 — 11,082 11,082 — — Level 2: Commercial paper 3,495 — 3,495 2,749 746 — Certificates of deposit 4,052 — 4,052 — 1,500 2,552 U.S. Treasury and agency bonds 103,537 (266 ) 103,271 7,944 76,425 18,902 Corporate bonds 46,668 (127 ) 46,541 — 41,139 5,402 Subtotal 157,752 (393 ) 157,359 10,693 119,810 26,856 Level 3 — — — — — — Total $ 206,136 $ (393 ) $ 205,743 $ 59,077 $ 119,810 $ 26,856 As of December 31, 2017 Cost Gross Fair Value Cash and Short-term Long-term Cash $ 100,651 $ — $ 100,651 $ 100,651 $ — $ — Level 1: Money market funds 19,065 — 19,065 19,065 — — Subtotal 19,065 — 19,065 19,065 — — Level 2: U.S. Treasury and agency bonds 44,968 (176 ) 44,792 — 25,923 18,869 Corporate bonds 29,608 (50 ) 29,558 — 28,463 1,095 Subtotal 74,576 (226 ) 74,350 — 54,386 19,964 Level 3 — — — — — — Total $ 194,292 $ (226 ) $ 194,066 $ 119,716 $ 54,386 $ 19,964
Reconciliation of Beginning and Ending Balances of Acquisition-Related Accrued Contingent Consideration	The following table presents a reconciliation of the beginning and ending balances of acquisition-related accrued contingent consideration using significant unobservable inputs (Level 3) for the three months ended March 31, 2018 and 2017 (in thousands): Three Months Ended March 31, 2018 2017 Beginning balance $ 975 $ — Obligations assumed 1,200 1,160 Change in fair value 293 — Settlement (656 ) — Ending balance $ 1,812 $ 1,160

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Change in Carrying Amount of Goodwill	The change in carrying amount of goodwill for the three months ended March 31, 2018 was as follows (in thousands): Goodwill as of December 31, 2017 $ 8,750 Goodwill recorded in connection with acquisition 1,104 Effects of foreign currency translation 13 Goodwill as of March 31, 2018 $ 9,867
Schedule of Intangible Assets	Intangible assets consisted of the following (in thousands, except years): As of March 31, 2018 Weighted Gross Carrying Accumulated Net Carrying Customer Relationships 6.9 $ 3,411 $ (75 ) $ 3,336 Completed Technology 5.7 9,180 (1,660 ) 7,520 $ 12,591 $ (1,735 ) $ 10,856 As of December 31, 2017 Average Useful Gross Carrying Accumulated Net Carrying Customer Relationships 2.0 $ 40 $ (12 ) $ 28 Completed Technology 5.7 9,180 (1,213 ) 7,967 $ 9,220 $ (1,225 ) $ 7,995
Schedule of Intangible Asset Amortization Expense	We classified intangible asset amortization expense in the accompanying consolidated statements of operations and comprehensive loss as follows (in thousands): Three Months Ended March 31, 2018 2017 Cost of revenue $ 446 $ 65 Sales and marketing 63 — Total $ 509 $ 65
Schedule of Finite-Lived Intangible Assets Estimated Remaining Amortization Expense	The following table presents our estimates of remaining amortization expense for finite-lived intangible assets at March 31, 2018 (in thousands): Remainder of 2018 $ 1,740 2019 2,298 2020 1,985 2021 1,774 2022 1,228 Thereafter 1,831 Total amortization expense $ 10,856

Equity Awards (Tables)

Equity Awards (Tables)	3 Months Ended
	Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Stock Option Activity	Stock option activity during the three months ended March 31, 2018 consisted of the following (in thousands, except weighted-average information): Options Weighted- Options outstanding at December 31, 2017 5,196 $ 8.70 Granted 652 27.33 Exercised (791 ) 4.50 Cancelled/forfeited (92 ) 11.58 Options outstanding at March 31, 2018 4,965 $ 11.77
Schedule of RSU Activity	RSU activity during the three months ended March 31, 2018 consisted of the following (in thousands, except weighted-average information): Awards Weighted- RSUs outstanding at December 31, 2017 464 $ 16.81 Granted 743 31.97 Vested (68 ) 15.50 Cancelled/forfeited (27 ) 19.35 RSUs outstanding at March 31, 2018 1,112 $ 26.96
Schedule of Stock-based Compensation Expense	We classified stock-based compensation expense in the accompanying consolidated statements of operations and comprehensive loss as follows (in thousands): Three Months Ended March 31, 2018 2017 Cost of revenue $ 139 $ 121 Research and development 1,233 236 Sales and marketing 1,157 659 General and administrative 1,260 926 Total $ 3,789 $ 1,942

Income Taxes (Tables)

Income Taxes (Tables)	3 Months Ended
	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Schedule of Provision for Income Taxes and Effective Tax Rates	The following table presents details of the provision for income taxes and our effective tax rates (in thousands except percentages): Three Months Ended March 31, 2018 2017 Provision for income taxes $ 106 $ 150 Effective tax rate 2.1 % 2.7 %

Basic and Diluted Net Loss Pe22

Basic and Diluted Net Loss Per Share (Tables)	3 Months Ended
	Mar. 31, 2018
Earnings Per Share [Abstract]
Schedule of Anti-dilutive Securities Excluded from Computation of Diluted Net Loss Per Share	The following weighted-average equivalent shares of common stock were excluded from the diluted net loss per share calculation because their inclusion would have been anti-dilutive (in thousands): Three Months Ended March 31, 2018 2017 Options to purchase common stock 5,477 6,170 Unvested restricted stock units 794 379 Conversion of convertible preferred stock — 13,345 Contingently issuable shares 21 — Total shares excluded from net loss per share 6,292 19,894

Segment and Geographic Inform23

Segment and Geographic Information (Tables)	3 Months Ended
	Mar. 31, 2018
Segment Reporting [Abstract]
Schedule of Revenue by Geographic Region	The following sets forth our revenue by geographic region (in thousands): Three Months Ended March 31, 2018 2017 United States $ 31,421 $ 22,596 International 11,400 5,949 Total $ 42,821 $ 28,545

Significant Accounting Polici24

Significant Accounting Policies - Additional Information (Detail) - USD ($)	Jan. 01, 2018	Mar. 31, 2018	Dec. 31, 2017
Foreign Tax Authority [Member]
Significant Accounting Policies [Line Items]
Unrecognized tax benefits			$ 0
ASU 2016-16 [Member]
Significant Accounting Policies [Line Items]
Elimination of deferred tax charges	$ (1,400,000)
Increase in accumulated deficit and additional paid-in-capital	1,400,000
ASU 2016-09 [Member]
Significant Accounting Policies [Line Items]
Increase in accumulated deficit and additional paid-in-capital	100,000
Unrecognized tax benefits	2,400,000
Valuation allowance deferred tax asset change in amount	$ 2,400,000
Alteryx ANZ Pty Limited [Member]
Significant Accounting Policies [Line Items]
Business combination acquired percentage		100.00%

Business Combinations - Additio

Business Combinations - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended
	Feb. 28, 2018	Mar. 31, 2018	Dec. 31, 2017	Jan. 31, 2017
Business Acquisition [Line Items]
Goodwill		$ 9,867	$ 8,750
Alteryx ANZ Pty Limited [Member]
Business Acquisition [Line Items]
Business combination acquired percentage	100.00%
Total consideration	$ 4,800
Business combination, purchase price in cash	3,300
Contingent consideration paid in cash	1,200
Settlement of preexisting relationships	300
Purchase price allocation, assets acquired and liabilities assumed, Net	300
Goodwill	1,100
Contingent earn-out consideration	$ 1,500
Contingent earn-out consideration payment period	2 years
Alteryx ANZ Pty Limited [Member] | Customer-Related Intangible Assets [Member] | Level 3 [Member]
Business Acquisition [Line Items]
Fair value of completed technology	$ 3,400
Weighted average amortization period	7 years
Alteryx ANZ Pty Limited [Member] | Customer Contracts And Relationships [Member]
Business Acquisition [Line Items]
Completed technology intangible assets	$ 3,400
Semanta, s.r.o [Member]
Business Acquisition [Line Items]
Business combination acquired percentage				100.00%
Purchase price allocation, assets acquired and liabilities assumed, Net				$ (400)
Completed technology intangible assets				3,100
Goodwill				2,900
Total purchase consideration				$ 5,600

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Cash and Cash Equivalents and Investments' Costs, Gross Unrealized Losses, and Fair Value by Major Security Type Recorded as Cash and Cash Equivalents or Short-Term or Long-Term Investments (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	$ 119,810	$ 54,386
Long-term investments	26,856	19,964
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost	206,136	194,292
Gross Unrealized Gains (Losses)	(393)	(226)
Fair Value	205,743	194,066
Cash and Cash Equivalents	59,077	119,716
Short-term investments	119,810	54,386
Long-term investments	26,856	19,964
Fair Value, Measurements, Recurring [Member] | Cash [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost	37,302	100,651
Fair Value	37,302	100,651
Cash and Cash Equivalents	37,302	100,651
Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost	11,082	19,065
Fair Value	11,082	19,065
Cash and Cash Equivalents	11,082	19,065
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost	11,082	19,065
Fair Value	11,082	19,065
Cash and Cash Equivalents	11,082	19,065
Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost	157,752	74,576
Gross Unrealized Gains (Losses)	(393)	(226)
Fair Value	157,359	74,350
Cash and Cash Equivalents	10,693
Short-term investments	119,810	54,386
Long-term investments	26,856	19,964
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Certificates of Deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost	4,052
Fair Value	4,052
Short-term investments	1,500
Long-term investments	2,552
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Corporate Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost	46,668	29,608
Gross Unrealized Gains (Losses)	(127)	(50)
Fair Value	46,541	29,558
Short-term investments	41,139	28,463
Long-term investments	5,402	1,095
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | U.S. Treasury and Agency Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost	103,537	44,968
Gross Unrealized Gains (Losses)	(266)	(176)
Fair Value	103,271	44,792
Cash and Cash Equivalents	7,944
Short-term investments	76,425	25,923
Long-term investments	18,902	$ 18,869
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost	3,495
Fair Value	3,495
Cash and Cash Equivalents	2,749
Short-term investments	$ 746

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2018USD ($)Securityshares	Dec. 31, 2017USD ($)
Fair Value Disclosures [Line Items]
Fair value transfer between Level 1, Level 2 or Level 3	$ 0
Number of securities in an unrealized loss position for less than 12 months | Security	64
Fair value of securities in an unrealized loss position for less than 12 months	$ 139,600,000
Gross unrealized losses	$ 400,000
Business acquisition, number of shares issued to Semanta | shares	18,869
Number of shares held back | shares	5,381
Domestic Cash and Investments [Member]
Fair Value Disclosures [Line Items]
Cash and cash equivalents, restricted cash and investments	$ 198,100,000	$ 181,300,000
Minimum [Member]
Fair Value Disclosures [Line Items]
Long-term investments maturity period	1 year
Maximum [Member]
Fair Value Disclosures [Line Items]
Long-term investments maturity period	2 years

Fair Value Measurements - Recon

Fair Value Measurements - Reconciliation of Beginning and Ending Balances of Acquisition-Related Accrued Contingent Consideration (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Beginning balance	$ 975
Obligations assumed	1,200	$ 1,160
Change in fair value	293
Settlement	(656)
Ending balance	$ 1,812	$ 1,160

Goodwill and Intangible Asset29

Goodwill and Intangible Assets - Schedule of Change in Carrying Amount of Goodwill (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2018USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill beginning balance	$ 8,750
Goodwill recorded in connection with acquisition	1,104
Effects of foreign currency translation	13
Goodwill ending balance	$ 9,867

Goodwill and Intangible Asset30

Goodwill and Intangible Assets - Schedule of Intangible Assets (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 12,591	$ 9,220
Accumulated Amortization	(1,735)	(1,225)
Net Carrying Value	$ 10,856	$ 7,995
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life in Years	6 years 10 months 25 days	2 years
Gross Carrying Value	$ 3,411	$ 40
Accumulated Amortization	(75)	(12)
Net Carrying Value	$ 3,336	$ 28
Completed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life in Years	5 years 8 months 12 days	5 years 8 months 12 days
Gross Carrying Value	$ 9,180	$ 9,180
Accumulated Amortization	(1,660)	(1,213)
Net Carrying Value	$ 7,520	$ 7,967

Goodwill and Intangible Asset31

Goodwill and Intangible Assets - Schedule of Intangible Asset Amortization Expense (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 509	$ 65
Cost of Revenue [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	446	$ 65
Sales And Marketing [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 63

Goodwill and Intangible Asset32

Goodwill and Intangible Assets - Schedule of Finite-Lived Intangible Assets Estimated Remaining Amortization Expense (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder of 2018	$ 1,740
2,019	2,298
2,020	1,985
2,021	1,774
2,022	1,228
Thereafter	1,831
Net Carrying Value	$ 10,856	$ 7,995

Equity Awards - Schedule of Sto

Equity Awards - Schedule of Stock Option Activity (Detail) shares in Thousands	3 Months Ended
	Mar. 31, 2018$ / sharesshares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Options Outstanding, Beginning Balance | shares	5,196
Granted | shares	652
Exercised | shares	(791)
Cancelled/forfeited | shares	(92)
Options Outstanding, Ending Balance | shares	4,965
Weighted- Average Exercise Price, Beginning Balance | $ / shares	$ 8.70
Weighted- Average Exercise Price, Granted | $ / shares	27.33
Weighted- Average Exercise Price, Exercised | $ / shares	4.50
Weighted- Average Exercise Price, Cancelled/forfeited | $ / shares	11.58
Weighted- Average Exercise Price, Ending Balance | $ / shares	$ 11.77

Equity Awards - Additional Info

Equity Awards - Additional Information (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2018USD ($)
Stock Options [Member]
Unrecognized compensation cost related to unvested stock options	$ 18
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	3 years 1 month 6 days
Restricted Stock Units [Member]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	3 years 8 months 12 days
Unrecognized compensation expense, related to unvested RSUs	$ 27.3

Equity Awards - Schedule RSU Ac

Equity Awards - Schedule RSU Activity (Detail) - Restricted Stock Units [Member] shares in Thousands	3 Months Ended
	Mar. 31, 2018$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Awards Outstanding, Beginning Balance | shares	464
Awards Outstanding, Granted | shares	743
Awards Outstanding, Vested | shares	(68)
Awards Outstanding, Cancelled/forfeited | shares	(27)
Awards Outstanding, Ending Balance | shares	1,112
Weighted Average Grant Date Fair Value, Beginning Balance | $ / shares	$ 16.81
Weighted Average Grant Date Fair Value, Granted | $ / shares	31.97
Weighted Average Grant Date Fair Value, vested | $ / shares	15.50
Weighted Average Grant Date Fair Value, Cancelled/forfeited | $ / shares	19.35
Weighted Average Grant Date Fair Value, Ending Balance | $ / shares	$ 26.96

Equity Awards - Schedule of S36

Equity Awards - Schedule of Stock-based Compensation Expense (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based Compensation Expense	$ 3,789	$ 1,942
Cost of Revenue [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based Compensation Expense	139	121
Research and Development [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based Compensation Expense	1,233	236
Sales And Marketing [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based Compensation Expense	1,157	659
General and Administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based Compensation Expense	$ 1,260	$ 926

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Commitments And Contingencies [Line Items]
Operating leases Expiration, Year	2,025
Indemnification [Member]
Commitments And Contingencies [Line Items]
Accrued liability	$ 0	$ 0

Income Taxes - Schedule of Prov

Income Taxes - Schedule of Provision for Income Taxes and Effective Tax Rates (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 106	$ 150
Effective tax rate	2.10%	2.70%

Basic and Diluted Net Loss Pe39

Basic and Diluted Net Loss Per Share - Schedule of Anti-dilutive Securities Excluded from Computation of Diluted Net Loss Per Share (Detail) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total shares excluded from net loss per share	6,292	19,894
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total shares excluded from net loss per share	5,477	6,170
Restricted Stock Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total shares excluded from net loss per share	794	379
Conversion of Convertible Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total shares excluded from net loss per share		13,345
Contingently Issuable Shares [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total shares excluded from net loss per share	21

Segment and Geographic Inform40

Segment and Geographic Information - Additional Information (Detail) - Segment	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting Information [Line Items]
Number of operating segments	1
Geographic Concentration Risk [Member] | Sales Revenue, Net [Member] | International [Member] | Maximum [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage	10.00%
Geographic Concentration Risk [Member] | Sales Revenue, Net [Member] | United Kingdom [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage	10.80%	9.00%

Segment and Geographic Inform41

Segment and Geographic Information - Schedule of Revenue by Geographic Region (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting Information [Line Items]
Revenues	$ 42,821	$ 28,545
United States [Member]
Segment Reporting Information [Line Items]
Revenues	31,421	22,596
International [Member]
Segment Reporting Information [Line Items]
Revenues	$ 11,400	$ 5,949