Alteryx Inc - Ordinary Shares (AYX) 10-Q 11 May 17 2017 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2017	May 08, 2017
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2017
Document Fiscal Year Focus	2,017
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		10,350,000
Class B Common Stock [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		47,998,489

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Revenue	$ 28,545	$ 18,394
Cost of revenue	4,826	3,899
Gross profit	23,719	14,495
Operating expenses:
Research and development	6,022	3,855
Sales and marketing	15,628	13,630
General and administrative	7,683	3,416
Total operating expenses	29,333	20,901
Loss from operations	(5,614)	(6,406)
Other income (expense), net	97	(90)
Loss before provision for income taxes	(5,517)	(6,496)
Provision for income taxes	150	37
Net loss	(5,667)	(6,533)
Less: Accretion of Series A redeemable convertible preferred stock	(1,983)	(1,278)
Net loss attributable to common stockholders	$ (7,650)	$ (7,811)
Net loss per share attributable to common stockholders, basic and diluted	$ (0.22)	$ (0.24)
Weighted-average shares used to compute net loss per share attributable to common stockholders, basic and diluted	35,126	32,266
Net loss	$ (5,667)	$ (6,533)
Other comprehensive income (loss), net of tax:
Net unrealized holding gain (loss) on investments, net of tax	(11)	64
Foreign currency translation adjustments, net of tax	(48)
Other comprehensive income (loss), net of tax	(59)	64
Total comprehensive loss	$ (5,726)	$ (6,469)

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 141,586	$ 31,306
Short-term investments	22,902	21,394
Accounts receivable, net	24,061	35,367
Deferred commissions	6,513	7,358
Prepaid expenses and other current assets	5,361	5,013
Total current assets	200,423	100,438
Property and equipment, net	6,539	6,212
Long-term investments	5,992
Goodwill	2,895
Intangible assets, net	3,035
Other assets	4,790	4,765
Total assets	223,674	111,415
Current liabilities:
Accounts payable	1,950	1,780
Accrued payroll and payroll related liabilities	4,163	7,760
Accrued expenses and other current liabilities	8,120	4,987
Deferred revenue	70,494	71,050
Total current liabilities	84,727	85,577
Deferred revenue	3,505	3,084
Other liabilities	2,664	1,182
Total liabilities	90,896	89,843
Commitments and contingencies (Note 7)
Redeemable convertible preferred stock, $0.0001 par value: no shares and 14,899 shares authorized as of March 31, 2017 and December 31, 2016, respectively; no shares and 14,647 shares issued and outstanding as of March 31, 2017 and December 31, 2016, respectively; aggregate liquidation preference of $0 and $87,448 as of March 31, 2017 and December 31, 2016, respectively		99,182
Stockholders' equity (deficit):
Preferred stock, $0.0001 par value, 10,000 and no shares authorized as of March 31, 2017 and December 31, 2016, respectively; no shares issued and outstanding as of March 31, 2017 and December 31, 2016.
Common stock, $0.0001 par value: 1,000,000 and 56,025 shares authorized as of March 31, 2017 and December 31, 2016, respectively; 57,014 and 32,674 shares issued and outstanding as of March 31, 2017 and December 31, 2016, respectively	5	3
Additional paid-in capital	224,555	8,443
Accumulated deficit	(91,714)	(86,047)
Accumulated other comprehensive loss	(68)	(9)
Total stockholders' equity (deficit)	132,778	(77,610)
Total liabilities, redeemable convertible preferred stock, and stockholders' equity (deficit)	$ 223,674	$ 111,415

Condensed Consolidated Balance4

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Redeemable convertible preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Redeemable convertible preferred stock, shares authorized (in shares)	0	14,899,000
Redeemable convertible preferred stock, shares issued (in shares)	0	14,647,000
Redeemable convertible preferred stock, shares outstanding (in shares)	0	14,647,000
Redeemable convertible preferred stock, aggregate liquidation preference	$ 0	$ 87,448
Preferred stock, par value	$ 0.0001	$ 0.0001
Preferred stock, shares authorized	10,000,000	0
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock par value per share	$ 0.0001	$ 0.0001
Common stock shares authorized	1,000,000,000	56,025,000
Common Stock shares issued	57,014,000	32,674,000
Common stock shares outstanding	57,014,000	32,674,000

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Redeemable Convertible Preferred Stock and Stockholders' Deficit - 3 months ended Mar. 31, 2017 - USD ($) $ in Thousands	Total	Redeemable Convertible Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]
Beginning Balance at Dec. 31, 2016	$ (77,610)		$ 3	$ 8,443	$ (86,047)	$ (9)
Beginning Balance at Dec. 31, 2016	$ 99,182	$ 99,182
Beginning Balance, Shares at Dec. 31, 2016	32,674,000		32,674,000
Beginning Balance, Shares at Dec. 31, 2016	14,647,000	14,647,000
Issuance of common stock, value	$ 114,106		$ 1	114,105
Accretion of Series A redeemable convertible preferred stock issuance costs and redemption feature		$ 1,983
Issuance of common stock, shares			9,000,000
Accretion of Series A redeemable convertible preferred stock issuance costs and redemption feature	(1,983)			(1,983)
Conversion of redeemable convertible preferred stock to common stock, value	101,165	$ (101,165)	$ 1	101,164
Conversion of redeemable convertible preferred stock to common stock, shares		(14,647,000)	14,647,000
Exercise of stock options, value	$ 884			884
Exercise of stock options, shares	693,000		693,000
Ending Balance, Shares at Mar. 31, 2017	0	0
Stock-based compensation, value	$ 1,942			1,942
Cumulative translation adjustment	(48)					(48)
Unrealized loss on investments	(11)					(11)
Net loss	(5,667)				(5,667)
Ending Balance at Mar. 31, 2017	$ 132,778		$ 5	$ 224,555	$ (91,714)	$ (68)
Ending Balance, Shares at Mar. 31, 2017	57,014,000		57,014,000

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Redeemable Convertible Preferred Stock and Stockholders' Deficit (Parenthetical) $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)
Common Stock [Member]
Issuance of common stock, net	$ 3,074
Additional Paid-in Capital [Member]
Issuance of common stock, net	$ 3,074

Condensed Consolidated Stateme7

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities:
Net loss	$ (5,667)	$ (6,533)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	566	308
Stock-based compensation	1,942	637
Provision for doubtful accounts and sales reserve, net of recoveries	350	122
Loss (gain) on disposal of assets	30	(35)
Changes in operating assets and liabilities, net of effect of business acquisition:
Accounts receivable	11,175	8,295
Deferred commissions	860	443
Prepaid expenses and other assets	(1,220)	(378)
Accounts payable	(525)	691
Accrued payroll and payroll related liabilities	(3,506)	(2,704)
Accrued expenses and other current liabilities	977	449
Deferred revenue	(118)	1,718
Other liabilities	159	(8)
Net cash provided by operating activities	5,023	3,005
Cash flows from investing activities:
Purchases of property and equipment	(508)	(1,401)
Cash paid in business acquisition, net of cash acquired	(3,884)
Purchases of investments	(16,035)	(5,333)
Maturities of investments	8,524
Net cash used in investing activities	(11,903)	(6,734)
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)
Principal payments on capital lease obligations	(82)	(27)
Proceeds from exercise of stock options	884	30
Net cash provided by financing activities	117,185	3
Effect of exchange rate changes on cash	(25)
Net increase (decrease) in cash and cash equivalents	110,280	(3,726)
Cash and cash equivalents-beginning of period	31,306	24,779
Cash and cash equivalents-end of period	141,586	21,053
Supplemental disclosure of noncash investing activities:
Property and equipment recorded in accounts payable	356	144
Consideration for business acquisition included in accrued expenses and other current liabilities and other liabilities	1,660
Supplemental disclosure of noncash financing activities:
Accretion of Series A redeemable convertible preferred stock	1,983	1,278
Deferred initial public offering costs recorded in accounts payable and accrued expenses	1,329
Property and equipment funded by capital lease borrowing		987
Series A Redeemable Convertible Preferred Stock [Member]
Supplemental disclosure of noncash financing activities:
Accretion of Series A redeemable convertible preferred stock	1,983	$ 1,278
Conversion of Series A redeemable convertible preferred stock to common shares	$ 101,165

Business

Business	3 Months Ended
	Mar. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business	1. Business Our Company Alteryx, Inc. and its subsidiaries, or we, our, or us, are a leading provider of self-service data analytics software. Our software platform enables organizations to dramatically improve business outcomes and the productivity of their business analysts. Our subscription-based platform allows organizations to easily prepare, blend, and analyze data from a multitude of sources and more quickly benefit from data-driven decisions. The ease-of-use, Initial Public Offering In March 2017, we completed an initial public offering, or IPO, of our Class A common stock. In connection with the IPO, we sold 9.0 million shares of Class A common stock at $14.00 per share for aggregate net proceeds of $114.1 million after underwriting discounts and commissions and offering expenses. Prior to the closing of the IPO, all shares of common stock then outstanding were reclassified as Class B common stock and all shares of our then outstanding convertible preferred stock held prior to the IPO were converted into Class B common stock. See Note 5 for further discussion of our Class A and Class B common stock. As of March 31, 2017, we had 9.0 million and 48.0 million shares of Class A common stock and Class B common stock issued and outstanding, respectively. In April 2017, the underwriters exercised their option to purchase an additional 1.4 million shares of Class A common stock for net proceeds of approximately $17.6 million. See Note 11 for additional information on the underwriters’ exercise of their option to purchase additional shares. Basis of Presentation Our 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 condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the related notes for the year ended December 31, 2016 included in our final prospectus related to our IPO dated March 23, 2017, or the Prospectus, filed with the Securities and Exchange Commission, or SEC, pursuant to Rule 424(b) under the Securities Act of 1933, as amended, or the Securities Act. The unaudited interim condensed consolidated financial statements have been prepared on a basis consistent with that used to prepare the audited annual consolidated financial statements and reflect all adjustments which are, in the opinion of our management, of a normal recurring nature and necessary for a fair statement of the condensed consolidated financial statements. The operating results for the three months ended March 31, 2017 are not necessarily indicative of the results expected for the full year ending December 31, 2017.

Significant Accounting Policies

Significant Accounting Policies	3 Months Ended
	Mar. 31, 2017
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, 2016 included in our Prospectus. As a result of the business combination in January 2017 (see Note 3), we have included our accounting policies relating to business combinations, intangible assets, and goodwill below. Correction of an Error In the course of preparing our consolidated financial statements as of and for the year ended December 31, 2016, we identified an error related to the improper calculation of royalty expense during the year ended December 31, 2016 associated with licensed third-party syndicated data. We have determined that the error was not material to our interim financial statements. The correction of this error resulted in a revision which increased cost of revenue, loss from operations, and net loss by $0.5 million for the three months ended March 31, 2016. 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. Business combinations The results of businesses acquired in a business combination are included in our condensed consolidated financial statements from the date of the acquisition. We allocated the purchase price, including the fair value of contingent consideration, to the identifiable assets and liabilities of the acquired business at their acquisition date fair values. Any excess consideration over the fair value of assets acquired and liabilities assumed is recognized as goodwill. Contingent consideration payable in cash or a fixed dollar amount settleable in a variable number of shares is classified as a liability and recorded at fair value, with changes in fair value recorded in general and administrative expenses each period. Transaction costs associated with business combinations are expensed as incurred, and are included in general and administrative expense in the condensed consolidated statements of operations and comprehensive loss. We perform valuations of assets acquired, liabilities assumed, and contingent consideration and allocate the purchase price to its respective assets and liabilities. Determining the fair value of assets acquired, liabilities assumed, and contingent consideration requires us to use significant judgment and estimates including the selection of valuation methodologies, estimates of future revenue, costs and cash flows, discount rates, the probability of the achievement of specified milestones, and selection of comparable companies. We engage the assistance of valuation specialists in concluding on fair value measurements in connection with determining fair values of assets acquired, liabilities assumed, and contingent consideration in a business combination. Intangible assets Intangible assets consist of acquired developed technology. We determine the appropriate useful life of our intangible assets by performing an analysis of expected cash flows of the acquired assets. Intangible assets are amortized over their estimated useful lives using the straight-line method, which approximates the pattern in which the economic benefits are consumed. Goodwill Goodwill represents the excess of the purchase price over the fair value of net assets acquired in a business combination. We test goodwill for impairment in accordance with the provisions of Accounting Standards Codification, or ASC, 350, Intangibles – Goodwill and Other ASC 350 provides that an entity has the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If, after assessing the totality of events or circumstances, an entity determines it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, then additional impairment testing is not required. However, if an entity concludes otherwise, then it is required to perform the first of a two-step The first step involves comparing the estimated fair value of a reporting unit with its book value, including goodwill. If the estimated fair value exceeds book value, goodwill is considered not to be impaired and no additional steps are necessary. If, however, the fair value of the reporting unit is less than book value, then the carrying amount of the goodwill is compared with its implied fair value. The estimate of implied fair value of goodwill may require valuations of certain internally generated and unrecognized intangible assets. If the carrying amount of goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to the excess. We have one reporting unit and we test for goodwill impairment annually during the fourth quarter of each calendar year. Variable Interest Entities In accordance with ASC 810, Consolidation As of March 31, 2017 and December 31, 2016, we determined that two of our distributors were VIEs under the guidance of ASC 810, Consolidation Recent Accounting Pronouncements In January 2017, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update, or 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 October 2016, FASB issued ASU 2016-16, Intra-Entity Transfers of Assets Other Than Inventory Income Taxes, In August 2016, the FASB issued ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments In March 2016, the FASB issued ASU 2016-09, Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting 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 Combination

Business Combination	3 Months Ended
	Mar. 31, 2017
Business Combinations [Abstract]
Business Combination	3. Business Combination In January 2017, we acquired 100% of the outstanding equity of a software development firm based in Prague, Czech Republic that delivers a cloud-based data governance and metadata management platform. The total purchase consideration for the acquisition was approximately $5.6 million consisting of (i) $3.9 million in cash consideration paid on the acquisition date, (ii) $0.5 million in cash consideration held back for customary indemnification matters for a period of 24-months The condensed consolidated financial statements include the results of operations of the acquired company commencing as of the acquisition date. Revenues and operating results of the acquired company for the three months ended March 31, 2017 were not material to the condensed consolidated financial statements. During the three months ended March 31, 2017 we recognized $0.6 million of acquisition related costs in general and administrative expense in the condensed consolidated statement of operations and comprehensive loss. The following table summarizes the estimated fair values of the assets acquired and liabilities assumed as of the date of the acquisition (in thousands): Assets acquired and liabilities assumed: Cash and cash equivalents $ 60 Accounts receivable 162 Prepaid expenses and other current assets 27 Property and equipment 30 Intangible assets – developed technology 3,100 Goodwill 2,899 Accounts payable (63 ) Accrued expenses and other current liabilities (22 ) Deferred tax liability, included in other liabilities (589 ) Total purchase consideration $ 5,604 Goodwill represents the excess of the purchase consideration over the fair value of the underlying intangible assets and net liabilities assumed. We believe the amount of goodwill resulting from the acquisition is primarily attributable to expected synergies from an assembled workforce, increased development capabilities, increased offerings to customers, and enhanced opportunities for growth and innovation. The goodwill resulting from the acquisition is not tax deductible. We determined the fair value of the completed technology acquired in the acquisition using the multiple period excess earnings model. This model utilizes certain unobservable inputs classified as Level 3 measurements as defined by ASC 820, Fair Value Measurements and Disclosures A portion of the consideration is subject to earn-out earn-out earn-out Pro forma information as if the acquisition occurred on January 1, 2016 has not been presented as the impact is not material to our condensed consolidated financial statements.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2017
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 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 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, 2017 Cost Gross Unrealized Gains (Losses) Fair Value Cash and Cash Equivalents Short-term Investments Long-term Investments Cash $ 127,202 $ — $ 127,202 $ 127,202 $ — $ — Level 1: Money market funds 12,384 — 12,384 12,384 — — Subtotal 12,384 — 12,384 12,384 — — Level 2: Certificates of deposit 9,353 — 9,353 — 9,353 — U.S. Treasury and agency bonds 7,998 (10 ) 7,988 — 5,988 2,000 Corporate bonds 13,563 (10 ) 13,553 2,000 7,561 3,992 Subtotal 30,914 (20 ) 30,894 2,000 22,902 5,992 Level 3 — — — — — — Total $ 170,500 $ (20 ) $ 170,480 $ 141,586 $ 22,902 $ 5,992 As of December 31, 2016 Cost Gross Unrealized Gains (Losses) Fair Value Cash and Cash Equivalents Short-term Investments Long-term Investments Cash $ 10,499 $ — $ 10,499 $ 10,499 $ — $ — Level 1: Money market funds 20,807 — 20,807 20,807 — — Subtotal 20,807 — 20,807 20,807 — — Level 2: Certificates of deposit 10,552 — 10,552 — 10,552 — Corporate bonds 10,770 72 10,842 — 10,842 — Subtotal 21,322 72 21,394 — 21,394 — Level 3 — — — — — — Total $ 52,628 $ 72 $ 52,700 $ 31,306 $ 21,394 $ — There were no transfers between Level 1, Level 2, or Level 3 securities during the three months ended March 31, 2017. As of March 31, 2017, there were 11 securities with a fair value of $21.5 million in an unrealized loss position for less than 12 months. The gross unrealized losses as of March 31, 2017 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, 2017. Cash and cash equivalents, restricted cash, and investments as of March 31, 2017 and December 31, 2016 held domestically were approximately $169.6 million and $52.9 million, respectively. Contingent Consideration. Instruments Not Recorded at Fair Value on a Recurring Basis. Assets and Liabilities Recorded at Fair Value on a Non-Recurring non-recurring

Stockholders' Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2017
Equity [Abstract]
Stockholders' Equity	5. Stockholders’ Equity Reverse Stock Split In February 2017, we effected a 2-to-1 Dual Class Common Stock Structure In February 2017, we implemented a dual class common stock structure where each then existing share of common stock converted into a share of Class B common stock and we also authorized a new class of common stock, the Class A common stock. The Class A common stock is entitled to one vote per share and the Class B common stock is entitled to ten votes per share. The Class A common stock and Class B common stock have the same dividend and liquidation rights, and the Class B common stock converts to Class A common stock at any time at the option of the holder, or automatically upon the date that is the earliest of (i) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B common stock, (ii) March 29, 2027, or (iii) the date that the total number of shares of Class B common stock outstanding cease to represent at least 10% of the aggregate number of shares of Class A common stock and Class B common stock then outstanding. In addition, each share of Class B common stock will convert automatically into one share of Class A common stock upon any transfer, except for certain permitted transfers described in our restated certificate of incorporation, or the Restated Certificate. Upon the creation of the dual class common stock structure all outstanding options to purchase common stock became options to purchase an equivalent number of shares of Class B common stock, and all restricted stock units, or RSUs, became RSUs for an equivalent number of shares of Class B common stock. Upon the effectiveness of the Restated Certificate in March 2017, the number of shares of capital stock that is authorized to be issued consisted of 500,000,000 shares of Class A common stock, $0.0001 par value per share, 500,000,000 shares of Class B common stock, $0.0001 par value per share, and 10,000,000 shares of undesignated preferred stock, $0.0001 par value per share.

Equity Awards

Equity Awards	3 Months Ended
	Mar. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Equity Awards	6. Equity Awards Amended and Restated 2013 Stock Plan We granted options and RSUs under our Amended and Restated 2013 Stock Plan, or 2013 Plan, as amended and restated, until March 22, 2017, when the plan was terminated in connection with our IPO. Accordingly, no shares are available for future issuance under this plan. The 2013 Plan continues to govern outstanding equity awards granted thereunder. 2017 Equity Incentive Plan In February 2017, our board of directors adopted and our stockholders approved the 2017 Equity Incentive Plan, or 2017 Plan. The 2017 Plan became effective on March 22, 2017 and is the successor plan to the 2013 Plan. Under the 2017 Plan, we initially reserved (i) 5.1 million shares of Class A common stock for future issuance and (ii) 0.8 million shares of Class A common stock equal to the number of Class B shares reserved but not issued under the 2013 Plan as of the effective date of the 2017 Plan. The number of shares reserved for issuance under our 2017 Plan will increase automatically on the first day of January of each of 2018 through 2027 by the number of shares of Class A common stock equal to 5% of the total outstanding shares of our common stock as of the immediately preceding December 31. However, our board of directors may reduce the amount of the increase in any particular year. The share reserve may also increase to the extent that outstanding awards under our 2013 Plan expire or terminate. As of March 31, 2017, 5.6 million shares were reserved for issuance under the 2017 Plan. 2017 Employee Stock Purchase Plan In February 2017, our board of directors adopted and our stockholders approved the 2017 Employee Stock Purchase Plan, or 2017 ESPP. The 2017 ESPP became effective on March 23, 2017. Under the 2017 ESPP, we reserved 1.1 million shares of Class A common stock for future issuance. The number of shares reserved for issuance under our 2017 ESPP will increase automatically on the first day of January of each of 2018 through 2027 by the number of shares equal to 1% of the total outstanding shares of our common stock as of the immediately preceding December 31. However, our board of directors may reduce the amount of the increase in any particular year. Stock Options Stock option activity during the three months ended March 31, 2017 consisted of the following (in thousands, except weighted-average information): Options Outstanding Weighted- Average Exercise Price Options outstanding at December 31, 2016 6,318 $ 5.65 Granted 447 13.84 Exercised (693 ) 1.27 Cancelled/forfeited (180 ) 4.64 Options outstanding at March 31, 2017 5,892 $ 6.81 As of March 31, 2017, there was $11.7 million of unrecognized compensation cost related to unvested stock options, which is expected to be recognized over a weighted-average period of 3.0 years. Restricted Stock Units RSU activity during the three months ended March 31, 2017 consisted of the following (in thousands, except weighted-average information): Awards Outstanding Weighted- Average Grant Date Fair Value RSUs outstanding at December 31, 2016 373 $ 12.30 Granted 79 15.50 RSUs outstanding at March 31, 2017 452 $ 12.86 RSUs outstanding as of December 31, 2016, or pre-2017 pre-2017 pre-2017 As of March 31, 2017, total unrecognized compensation expense, adjusted for estimated forfeitures, related to unvested RSUs was approximately $4.5 million which is expected to be recognized over a weighted-average period of 1.9 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, 2017 2016 Cost of revenue $ 121 $ 26 Research and development 236 73 Sales and marketing 659 310 General and administrative 926 228 Total $ 1,942 $ 637

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2017
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. Through March 31, 2017, we have not had to reimburse any party for losses related to an indemnity claim. As of March 31, 2017 and December 31, 2016, 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. We are not currently a party to any material legal proceedings or claims, nor are we aware of any pending or threatened litigation or claims that could have a material adverse effect on our business, operating results, cash flows, or financial condition should such litigation or claim be resolved unfavorably.

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2017
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 2017 2016 Provision for income taxes $ 150 $ 37 Effective tax rate 2.7 % 0.6 % 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. The income tax expense of $0.2 million for the three months ended March 31, 2017 includes U.S. and Czech tax expense from the sale of the intellectual property related to our products from the U.S. parent company to wholly owned subsidiaries outside the United States and from the Czech subsidiary to the U.S. parent company and other wholly owned subsidiaries outside the United States. 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, 2017
Earnings Per Share [Abstract]
Basic and Diluted Net Loss Per Share	9. Basic and Diluted Net Loss Per Share In periods in which we have net income, we apply the two-class two-class Under the two-class 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 2017 2016 Options to purchase common stock 6,170 5,023 Unvested restricted stock units 379 — Conversion of convertible preferred stock 13,345 14,647 Total shares excluded from net loss per share 19,894 19,670

Segment and Geographic Informat

Segment and Geographic Information	3 Months Ended
	Mar. 31, 2017
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 Canada, Germany, Czech Republic, and the United Kingdom. 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 2017 2016 United States $ 22,596 $ 15,245 International 5,949 3,149 Total $ 28,545 $ 18,394 No countries outside the United States comprised more than 10% of revenue for any of the periods presented.

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2017
Subsequent Events [Abstract]
Subsequent Events	11. Subsequent Events In April 2017, in connection with our IPO, the underwriters exercised their option to purchase 1.4 million additional shares of Class A common stock from us in full at a price of $14.00 per share. As a result of the exercise and closing of the option to purchase additional shares, total net proceeds from the IPO were approximately $131.7 million after underwriting discounts and commissions and offering expenses.

Significant Accounting Polici19

Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2017
Accounting Policies [Abstract]
Correction of an Error	Correction of an Error In the course of preparing our consolidated financial statements as of and for the year ended December 31, 2016, we identified an error related to the improper calculation of royalty expense during the year ended December 31, 2016 associated with licensed third-party syndicated data. We have determined that the error was not material to our interim financial statements. The correction of this error resulted in a revision which increased cost of revenue, loss from operations, and net loss by $0.5 million for the three months ended March 31, 2016.
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.
Business combinations	Business combinations The results of businesses acquired in a business combination are included in our condensed consolidated financial statements from the date of the acquisition. We allocated the purchase price, including the fair value of contingent consideration, to the identifiable assets and liabilities of the acquired business at their acquisition date fair values. Any excess consideration over the fair value of assets acquired and liabilities assumed is recognized as goodwill. Contingent consideration payable in cash or a fixed dollar amount settleable in a variable number of shares is classified as a liability and recorded at fair value, with changes in fair value recorded in general and administrative expenses each period. Transaction costs associated with business combinations are expensed as incurred, and are included in general and administrative expense in the condensed consolidated statements of operations and comprehensive loss. We perform valuations of assets acquired, liabilities assumed, and contingent consideration and allocate the purchase price to its respective assets and liabilities. Determining the fair value of assets acquired, liabilities assumed, and contingent consideration requires us to use significant judgment and estimates including the selection of valuation methodologies, estimates of future revenue, costs and cash flows, discount rates, the probability of the achievement of specified milestones, and selection of comparable companies. We engage the assistance of valuation specialists in concluding on fair value measurements in connection with determining fair values of assets acquired, liabilities assumed, and contingent consideration in a business combination.
Intangible assets	Intangible assets Intangible assets consist of acquired developed technology. We determine the appropriate useful life of our intangible assets by performing an analysis of expected cash flows of the acquired assets. Intangible assets are amortized over their estimated useful lives using the straight-line method, which approximates the pattern in which the economic benefits are consumed.
Goodwill	Goodwill Goodwill represents the excess of the purchase price over the fair value of net assets acquired in a business combination. We test goodwill for impairment in accordance with the provisions of Accounting Standards Codification, or ASC, 350, Intangibles – Goodwill and Other ASC 350 provides that an entity has the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If, after assessing the totality of events or circumstances, an entity determines it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, then additional impairment testing is not required. However, if an entity concludes otherwise, then it is required to perform the first of a two-step The first step involves comparing the estimated fair value of a reporting unit with its book value, including goodwill. If the estimated fair value exceeds book value, goodwill is considered not to be impaired and no additional steps are necessary. If, however, the fair value of the reporting unit is less than book value, then the carrying amount of the goodwill is compared with its implied fair value. The estimate of implied fair value of goodwill may require valuations of certain internally generated and unrecognized intangible assets. If the carrying amount of goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to the excess. We have one reporting unit and we test for goodwill impairment annually during the fourth quarter of each calendar year.
Variable Interest Entities	Variable Interest Entities In accordance with ASC 810, Consolidation As of March 31, 2017 and December 31, 2016, we determined that two of our distributors were VIEs under the guidance of ASC 810, Consolidation
Recent Accounting Pronouncements	Recent Accounting Pronouncements In January 2017, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update, or 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 October 2016, FASB issued ASU 2016-16, Intra-Entity Transfers of Assets Other Than Inventory Income Taxes, In August 2016, the FASB issued ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments In March 2016, the FASB issued ASU 2016-09, Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting 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 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 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	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. The income tax expense of $0.2 million for the three months ended March 31, 2017 includes U.S. and Czech tax expense from the sale of the intellectual property related to our products from the U.S. parent company to wholly owned subsidiaries outside the United States and from the Czech subsidiary to the U.S. parent company and other wholly owned subsidiaries outside the United States. 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 Share	Basic and Diluted Net Loss Per Share In periods in which we have net income, we apply the two-class two-class Under the two-class 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.
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.

Business Combination (Tables)

Business Combination (Tables)	3 Months Ended
	Mar. 31, 2017
Business Combinations [Abstract]
Summary of Estimated Fair Values of Assets Acquired and Liabilities Assumed	The following table summarizes the estimated fair values of the assets acquired and liabilities assumed as of the date of the acquisition (in thousands): Assets acquired and liabilities assumed: Cash and cash equivalents $ 60 Accounts receivable 162 Prepaid expenses and other current assets 27 Property and equipment 30 Intangible assets – developed technology 3,100 Goodwill 2,899 Accounts payable (63 ) Accrued expenses and other current liabilities (22 ) Deferred tax liability, included in other liabilities (589 ) Total purchase consideration $ 5,604

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2017
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 gains (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, 2017 and December 31, 2016 (in thousands): As of March 31, 2017 Cost Gross Unrealized Gains (Losses) Fair Value Cash and Cash Equivalents Short-term Investments Long-term Investments Cash $ 127,202 $ — $ 127,202 $ 127,202 $ — $ — Level 1: Money market funds 12,384 — 12,384 12,384 — — Subtotal 12,384 — 12,384 12,384 — — Level 2: Certificates of deposit 9,353 — 9,353 — 9,353 — U.S. Treasury and agency bonds 7,998 (10 ) 7,988 — 5,988 2,000 Corporate bonds 13,563 (10 ) 13,553 2,000 7,561 3,992 Subtotal 30,914 (20 ) 30,894 2,000 22,902 5,992 Level 3 — — — — — — Total $ 170,500 $ (20 ) $ 170,480 $ 141,586 $ 22,902 $ 5,992 As of December 31, 2016 Cost Gross Unrealized Gains (Losses) Fair Value Cash and Cash Equivalents Short-term Investments Long-term Investments Cash $ 10,499 $ — $ 10,499 $ 10,499 $ — $ — Level 1: Money market funds 20,807 — 20,807 20,807 — — Subtotal 20,807 — 20,807 20,807 — — Level 2: Certificates of deposit 10,552 — 10,552 — 10,552 — Corporate bonds 10,770 72 10,842 — 10,842 — Subtotal 21,322 72 21,394 — 21,394 — Level 3 — — — — — — Total $ 52,628 $ 72 $ 52,700 $ 31,306 $ 21,394 $ —

Equity Awards (Tables)

Equity Awards (Tables)	3 Months Ended
	Mar. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Stock Option Activity	Stock option activity during the three months ended March 31, 2017 consisted of the following (in thousands, except weighted-average information): Options Outstanding Weighted- Average Exercise Price Options outstanding at December 31, 2016 6,318 $ 5.65 Granted 447 13.84 Exercised (693 ) 1.27 Cancelled/forfeited (180 ) 4.64 Options outstanding at March 31, 2017 5,892 $ 6.81
Schedule of RSU Activity	RSU activity during the three months ended March 31, 2017 consisted of the following (in thousands, except weighted-average information): Awards Outstanding Weighted- Average Grant Date Fair Value RSUs outstanding at December 31, 2016 373 $ 12.30 Granted 79 15.50 RSUs outstanding at March 31, 2017 452 $ 12.86
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, 2017 2016 Cost of revenue $ 121 $ 26 Research and development 236 73 Sales and marketing 659 310 General and administrative 926 228 Total $ 1,942 $ 637

Income Taxes (Tables)

Income Taxes (Tables)	3 Months Ended
	Mar. 31, 2017
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 2017 2016 Provision for income taxes $ 150 $ 37 Effective tax rate 2.7 % 0.6 %

Basic and Diluted Net Loss Pe24

Basic and Diluted Net Loss Per Share (Tables)	3 Months Ended
	Mar. 31, 2017
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 2017 2016 Options to purchase common stock 6,170 5,023 Unvested restricted stock units 379 — Conversion of convertible preferred stock 13,345 14,647 Total shares excluded from net loss per share 19,894 19,670

Segment and Geographic Inform25

Segment and Geographic Information (Tables)	3 Months Ended
	Mar. 31, 2017
Segment Reporting [Abstract]
Schedule of Revenue by Geographic Region	The following sets forth our revenue by geographic region (in thousands): Three Months Ended 2017 2016 United States $ 22,596 $ 15,245 International 5,949 3,149 Total $ 28,545 $ 18,394

Business - Additional Informati

Business - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	1 Months Ended		2 Months Ended	3 Months Ended
	Apr. 30, 2017	Mar. 31, 2017	Apr. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
Organization And Description Of Business [Line Items]
Aggregate net proceeds from IPO				$ 117,180
Common Stock shares issued		57,014		57,014	32,674
Common stock shares outstanding		57,014		57,014	32,674
Class A Common Stock [Member]
Organization And Description Of Business [Line Items]
Aggregate net proceeds from IPO		$ 114,100
Common Stock shares issued		9,000		9,000
Common stock shares outstanding		9,000		9,000
Class A Common Stock [Member] | Subsequent Event [Member]
Organization And Description Of Business [Line Items]
Aggregate net proceeds from IPO			$ 131,700
Class A Common Stock [Member] | IPO [Member]
Organization And Description Of Business [Line Items]
Shares issued, common stock		9,000
Shares sold in IPO, price per share		$ 14		$ 14
Class A Common Stock [Member] | Over-Allotment Option [Member] | Subsequent Event [Member]
Organization And Description Of Business [Line Items]
Shares issued, common stock	1,400
Shares sold in IPO, price per share	$ 14		$ 14
Aggregate net proceeds from IPO	$ 17,600
Class B Common Stock [Member]
Organization And Description Of Business [Line Items]
Common Stock shares issued		48,000		48,000
Common stock shares outstanding		48,000		48,000

Summary of Significant Accounti

Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Significant Accounting Policies [Line Items]
Increase in cost of revenue	$ 4,826	$ 3,899
Loss from operations	(5,614)	(6,406)
Net loss	$ (5,667)	(6,533)
Restatement Adjustment [Member]
Significant Accounting Policies [Line Items]
Increase in cost of revenue		500
Loss from operations		(500)
Net loss		$ (500)

Business Combination - Addition

Business Combination - Additional Information (Detail) - Software Development Firm In Prague, Czech Republic [Member] - USD ($)	1 Months Ended	2 Months Ended	3 Months Ended
	Jan. 31, 2017	Mar. 31, 2017	Mar. 31, 2017
Business Acquisition [Line Items]
Business combination acquired percentage	100.00%
Total Consideration	$ 5,600,000
Cash consideration	3,900,000
Cash held back for customary indemnification matters	500,000
Business combination equity interests issued and issuable	$ 1,200,000
Cash consideration held back for customary indemnification matters period	24 months
Change in fair value of contingent consideration		$ 0
Class B Common Stock [Member]
Business Acquisition [Line Items]
Business combination equity interests issued and issuable	$ 1,200,000
Contingent earn-out consideration	$ 2,300,000
Contingent earn-out consideration payment period	2 years
Completed Technology [Member] | Level 3 [Member]
Business Acquisition [Line Items]
Discount rate	45.00%
Market participant tax rate	40.00%
Fair value of completed technology	$ 3,100,000
Amortization period	8 years
General and Administrative [Member]
Business Acquisition [Line Items]
Acquisition related costs			$ 600,000

Business Combination - Summary

Business Combination - Summary of Estimated Fair Values of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Jan. 31, 2017
Assets acquired and liabilities assumed:
Goodwill	$ 2,895
Software Development Firm In Prague, Czech Republic [Member]
Assets acquired and liabilities assumed:
Cash and cash equivalents		$ 60
Accounts receivable		162
Prepaid expenses and other current assets		27
Property and equipment		30
Intangible assets - developed technology		3,100
Goodwill		2,899
Accounts payable		(63)
Accrued expenses and other current liabilities		(22)
Deferred tax liability, included in other liabilities		(589)
Total purchase consideration		$ 5,604

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, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	$ 22,902	$ 21,394
Long-term investments	5,992
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost	170,500	52,628
Gross Unrealized Gains (Losses)	(20)	72
Fair Value	170,480	52,700
Cash and Cash Equivalents	141,586	31,306
Short-term investments	22,902	21,394
Long-term investments	5,992
Fair Value, Measurements, Recurring [Member] | Cash [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost	127,202	10,499
Fair Value	127,202	10,499
Cash and Cash Equivalents	127,202	10,499
Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost	12,384	20,807
Fair Value	12,384	20,807
Cash and Cash Equivalents	12,384	20,807
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	12,384	20,807
Fair Value	12,384	20,807
Cash and Cash Equivalents	12,384	20,807
Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost	30,914	21,322
Gross Unrealized Gains (Losses)	(20)	72
Fair Value	30,894	21,394
Cash and Cash Equivalents	2,000
Short-term investments	22,902	21,394
Long-term investments	5,992
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	9,353	10,552
Fair Value	9,353	10,552
Short-term investments	9,353	10,552
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	13,563	10,770
Gross Unrealized Gains (Losses)	(10)	72
Fair Value	13,553	10,842
Cash and Cash Equivalents	2,000
Short-term investments	7,561	$ 10,842
Long-term investments	3,992
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	7,998
Gross Unrealized Gains (Losses)	(10)
Fair Value	7,988
Short-term investments	5,988
Long-term investments	$ 2,000

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2017USD ($)Security	Dec. 31, 2016USD ($)
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	11
Fair value of securities in an unrealized loss position for less than 12 months	$ 21,500,000
Domestic Cash and Investments [Member]
Fair Value Disclosures [Line Items]
Cash and cash equivalents, restricted cash and investments	$ 169,600,000	$ 52,900,000
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

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail)	1 Months Ended	3 Months Ended
	Feb. 28, 2017Vote	Mar. 31, 2017$ / sharesshares	Dec. 31, 2016$ / sharesshares
Stockholders Equity Note [Line Items]
Reverse stock split ratio	2
Common stock voting rights description		The Class A common stock is entitled to one vote per share and the Class B common stock is entitled to ten votes per share.
Common stock conversion basis		Class B common stock converts to Class A common stock at any time at the option of the holder, or automatically upon the date that is the earliest of (i) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B common stock, (ii) March 29, 2027, or (iii) the date that the total number of shares of Class B common stock outstanding cease to represent at least 10% of the aggregate number of shares of Class A common stock and Class B common stock then outstanding. In addition, each share of Class B common stock will convert automatically into one share of Class A common stock upon any transfer, except for certain permitted transfers described in our restated certificate of incorporation, or the Restated Certificate.
Common stock shares authorized | shares		1,000,000,000	56,025,000
Common stock par value per share | $ / shares		$ 0.0001	$ 0.0001
Preferred stock shares authorized | shares		10,000,000	0
Preferred stock par value per share | $ / shares		$ 0.0001	$ 0.0001
Class A Common Stock [Member]
Stockholders Equity Note [Line Items]
Number of votes per share | Vote	1
Common stock shares authorized | shares		500,000,000
Common stock par value per share | $ / shares		$ 0.0001
Class B Common Stock [Member]
Stockholders Equity Note [Line Items]
Number of votes per share | Vote	10
Threshold percentage of common stock conversion	10.00%
Common stock shares authorized | shares		500,000,000
Common stock par value per share | $ / shares		$ 0.0001
Undesignated Preferred Stock [Member]
Stockholders Equity Note [Line Items]
Preferred stock shares authorized | shares		10,000,000
Preferred stock par value per share | $ / shares		$ 0.0001
Minimum [Member]
Stockholders Equity Note [Line Items]
Percentage of votes required for stock conversion	66.67%

Equity Awards - Additional Info

Equity Awards - Additional Information (Detail) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Feb. 28, 2017	Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to unvested stock options		$ 11.7
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average period over which unrecognized compensation cost is expected to be recognized		3 years
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average period over which unrecognized compensation cost is expected to be recognized		1 year 10 months 24 days
Awards vesting period upon service condition satisfied		4 years
Pre-2017 RSUs vesting description		RSUs outstanding as of December 31, 2016, or pre-2017 RSUs, vest upon the satisfaction of both a service condition and a liquidity condition. The service condition for these awards will be satisfied over four years. The liquidity condition is satisfied upon the occurrence of a qualifying event, defined as a change of control transaction, or 180 days following the closing of the IPO, which occurred in March 2017. Beginning on the closing of the IPO in March 2017, we recognized a cumulative share-based compensation expense for the portion of the pre-2017 RSUs that had met the service condition.
Unrecognized compensation expense, adjusted for estimated forfeitures, related to unvested RSUs		$ 4.5
Pre-2017 RSU's [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense related to pre-2017 RSUs		$ 0.7
2017 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock reserved for issuance under equity award plans		5,600,000
2017 Equity Incentive Plan [Member] | Class A Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock reserved for issuance under equity award plans	5,100,000
Common stock outstanding percentage	5.00%
2013 Plan [Member] | Class A Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock reserved for issuance under equity award plans	800,000
2017 Employee Stock Purchase Plan [Member] | Class A Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock reserved for issuance under equity award plans	1,100,000
Common stock outstanding percentage	1.00%
Amended and Restated 2013 Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock reserved for issuance under equity award plans		0
Stock plan termination date		Mar. 22, 2017

Equity Awards - Schedule of Sto

Equity Awards - Schedule of Stock Option Activity (Detail) shares in Thousands	3 Months Ended
	Mar. 31, 2017$ / sharesshares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Options Outstanding, Beginning Balance | shares	6,318
Options Outstanding, Granted | shares	447
Options Outstanding, Exercised | shares	(693)
Options Outstanding, Cancelled/forfeited | shares	(180)
Options Outstanding, Ending Balance | shares	5,892
Weighted- Average Exercise Price, Beginning Balance | $ / shares	$ 5.65
Weighted- Average Exercise Price, Granted | $ / shares	13.84
Weighted- Average Exercise Price, Exercised | $ / shares	1.27
Weighted- Average Exercise Price, Cancelled/forfeited | $ / shares	4.64
Weighted- Average Exercise Price, Ending Balance | $ / shares	$ 6.81

Equity Awards - Schedule RSU Ac

Equity Awards - Schedule RSU Activity (Detail) - Restricted Stock Units [Member] shares in Thousands	3 Months Ended
	Mar. 31, 2017$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards Outstanding, Beginning Balance | shares	373
Awards Outstanding, Granted | shares	79
Awards Outstanding, Ending Balance | shares	452
Weighted- Average Grant Date Fair Value (Per Share) Beginning Balance | $ / shares	$ 12.30
Weighted- Average Grant Date Fair Value (Per Share), Granted | $ / shares	15.50
Weighted- Average Grant Date Fair Value (Per Share), Ending Balance | $ / shares	$ 12.86

Equity Awards - Schedule of S36

Equity Awards - Schedule of Stock-based Compensation Expense (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based Compensation Expense	$ 1,942	$ 637
Cost of Revenue [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based Compensation Expense	121	26
Research and Development [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based Compensation Expense	236	73
Selling and Marketing [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based Compensation Expense	659	310
General and Administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based Compensation Expense	$ 926	$ 228

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, 2017	Mar. 31, 2016
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 150	$ 37
Effective tax rate	2.70%	0.60%

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Taxes [Line Items]
Income tax expense	$ 150	$ 37
Intellectual Property [Member]
Income Taxes [Line Items]
Income tax expense	$ 200

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, 2017	Mar. 31, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total shares excluded from net loss per share	19,894	19,670
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total shares excluded from net loss per share	6,170	5,023
Unvested Restricted Stock Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total shares excluded from net loss per share	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	14,647

Segment and Geographic Inform40

Segment and Geographic Information - Schedule of Revenue by Geographic Region (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Segment Reporting Information [Line Items]
Revenues	$ 28,545	$ 18,394
United States [Member]
Segment Reporting Information [Line Items]
Revenues	22,596	15,245
International [Member]
Segment Reporting Information [Line Items]
Revenues	$ 5,949	$ 3,149

Segment and Geographic Inform41

Segment and Geographic Information - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2017
Geographic Concentration Risk [Member] | Sales Revenue, Net [Member] | International [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage	10.00%

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	1 Months Ended		2 Months Ended	3 Months Ended
	Apr. 30, 2017	Mar. 31, 2017	Apr. 30, 2017	Mar. 31, 2017
Subsequent Event [Line Items]
Aggregate net proceeds from IPO				$ 117,180
Class A Common Stock [Member]
Subsequent Event [Line Items]
Aggregate net proceeds from IPO		$ 114,100
Subsequent Event [Member] | Class A Common Stock [Member]
Subsequent Event [Line Items]
Aggregate net proceeds from IPO			$ 131,700
Subsequent Event [Member] | Class A Common Stock [Member] | Over-Allotment Option [Member]
Subsequent Event [Line Items]
Shares issued, common stock	1.4
Offering price per share	$ 14		$ 14
Aggregate net proceeds from IPO	$ 17,600