Talend (TLND) 10-Q 7 May 21 2021 Q1 Quarterly report Financial data

Cover Page

Cover Page - shares	3 Months Ended
	Mar. 31, 2021	Apr. 30, 2021
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2021
Document Transition Report	false
Entity File Number	001-37825
Entity Registrant Name	Talend S.A.
Entity Incorporation, State or Country Code	I0
Entity Address, Address Line One	5-7, rue Salomon de Rothschild
Entity Address, City or Town	Suresnes
Entity Address, Country	FR
Entity Address, Postal Zip Code	92150
Country Region	+33
City Area Code	(0) 1 4
Local Phone Number	6 25 06 00
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		32,595,355
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Entity Central Index Key	0001668105
Amendment Flag	false
American Depositary Shares
Document Information [Line Items]
Title of each class	American Depositary Shares, each representing oneordinary share, nominal value €0.08 per share
Trading Symbol(s)	TLND
Name of each exchange on which registered	NASDAQ
Ordinary shares
Document Information [Line Items]
Title of each class	Ordinary shares, nominal value €0.08 per share*
Name of each exchange on which registered	NASDAQ
No Trading Symbol Flag	true

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 172,996	$ 162,855
Accounts receivable, net of allowance for doubtful accounts of $1,101 and $1,244, respectively	61,047	95,967
Deferred commissions, current	12,753	12,771
Other current assets	10,931	11,150
Total current assets	257,727	282,743
Non-current assets:
Deferred commissions, non-current	26,530	26,889
Operating lease right-of-use assets	33,717	35,987
Property and equipment, net	9,054	9,273
Goodwill	50,010	50,294
Intangible assets, net	8,184	9,236
Other non-current assets	4,802	5,308
Total non-current assets	132,297	136,987
Total assets	390,024	419,730
Current liabilities:
Accounts payable	4,493	2,760
Accrued expenses and other current liabilities	37,834	46,720
Deferred revenue, current	149,182	160,215
Operating lease liabilities, current	4,875	4,798
Current portion of long-term debt	0	0
Total current liabilities	196,384	214,493
Non-current liabilities:
Deferred income taxes	299	345
Other non-current liabilities	2,106	2,197
Deferred revenue, non-current	10,802	12,590
Operating lease liabilities, non-current	31,157	33,251
Long-term debt	142,885	148,129
Total non-current liabilities	187,249	196,512
Total liabilities	383,633	411,005
Commitments and contingencies (Note 8)
STOCKHOLDERS' EQUITY
Ordinary shares, par value €0.08 per share; 32,572,335 and 32,010,526 shares authorized, issued and outstanding, respectively	3,349	3,295
Additional paid-in capital	384,511	366,508
Accumulated other comprehensive income (loss)	(106)	(2,941)
Accumulated losses	(381,363)	(358,137)
Total stockholders’ equity	6,391	8,725
Total liabilities and stockholders’ equity	$ 390,024	$ 419,730

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) $ in Thousands	Mar. 31, 2021USD ($)shares	Mar. 31, 2021€ / shares	Dec. 31, 2020USD ($)shares	Dec. 31, 2020€ / shares
Current assets:
Allowance for doubtful accounts | $	$ 1,101		$ 1,244
STOCKHOLDERS' EQUITY
Common stock, par value (in euro per share) | € / shares		€ 0.08		€ 0.08
Common stock, shares authorized (in shares)	32,572,335		32,010,526
Common stock, shares issued (in shares)	32,572,335		32,010,526
Common stock, shares outstanding (in shares)	32,572,335		32,010,526

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenue
Total revenue	$ 79,918	$ 68,119
Cost of revenue
Total cost of revenue	18,018	14,765
Gross profit	61,900	53,354
Operating expenses
Sales and marketing	42,627	38,253
Research and development	20,984	15,934
General and administrative	19,893	15,655
Total operating expenses	83,504	69,842
Loss from operations	(21,604)	(16,488)
Interest income (expense), net	(2,084)	(1,805)
Other income (expense), net	584	198
Loss before benefit (provision) for income taxes	(23,104)	(18,095)
Benefit (provision) for income taxes	(122)	(47)
Net loss	$ (23,226)	$ (18,142)
Net loss per share attributable to ordinary shareholders, diluted (in dollars per share)	$ (0.72)	$ (0.58)
Net loss per share attributable to ordinary shareholders, basic (in dollars per share)	$ (0.72)	$ (0.58)
Weighted-average shares outstanding used to compute net loss per share attributable to ordinary shareholders, diluted (in shares)	32,218	31,180
Weighted-average shares outstanding used to compute net loss per share attributable to ordinary shareholders, basic (in shares)	32,218	31,180
Subscriptions
Revenue
Total revenue	$ 72,375	$ 60,909
Cost of revenue
Total cost of revenue	11,834	8,024
Professional services
Revenue
Total revenue	7,543	7,210
Cost of revenue
Total cost of revenue	$ 6,184	$ 6,741

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Net loss	$ (23,226)	$ (18,142)
Other comprehensive gain (loss)
Foreign currency translation adjustment	2,835	89
Total comprehensive loss	$ (20,391)	$ (18,053)

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Ordinary shares	Additional paid-in capital	Accumulated other comprehensive income	Accumulated loss
Balance as of the beginning of the period (in shares) at Dec. 31, 2019		31,017,268
Balance as of the beginning of the period at Dec. 31, 2019	$ 35,952	$ 3,205	$ 310,195	$ 1,107	$ (278,555)
Increase (Decrease) in Stockholders' Equity
Net loss for the period	(18,142)				(18,142)
Other comprehensive gain (loss)	89			89
Shares issued from restricted stock unit vesting (in shares)		101,523
Shares issued from restricted stock unit vesting	0	$ 9	(9)
Exercise of stock awards (in shares)		145,928
Exercise of stock awards	1,604	$ 13	1,591
Issuance of ordinary shares in connection with employee stock purchase plan (in shares)		72,975
Issuance of ordinary shares in connection with employee stock purchase plan	2,287	$ 6	2,281
Share-based compensation	10,329		10,329
Balance as of the end of the period (in shares) at Mar. 31, 2020		31,337,694
Balance as of the end of the period at Mar. 31, 2020	32,119	$ 3,233	324,387	1,196	(296,697)
Balance as of the beginning of the period (in shares) at Dec. 31, 2020		32,010,526
Balance as of the beginning of the period at Dec. 31, 2020	8,725	$ 3,295	366,508	(2,941)	(358,137)
Increase (Decrease) in Stockholders' Equity
Net loss for the period	(23,226)				(23,226)
Other comprehensive gain (loss)	2,835			2,835
Shares issued from restricted stock unit vesting (in shares)		236,543
Shares issued from restricted stock unit vesting	0	$ 23	(23)
Exercise of stock awards (in shares)		241,772
Exercise of stock awards	3,626	$ 23	3,603
Issuance of ordinary shares in connection with employee stock purchase plan (in shares)		83,494
Issuance of ordinary shares in connection with employee stock purchase plan	2,799	$ 8	2,791
Share-based compensation	11,632		11,632
Balance as of the end of the period (in shares) at Mar. 31, 2021		32,572,335
Balance as of the end of the period at Mar. 31, 2021	$ 6,391	$ 3,349	$ 384,511	$ (106)	$ (381,363)

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities:
Net loss for the period	$ (23,226)	$ (18,142)
Adjustments to reconcile net loss to net cash (used in) from operating activities:
Depreciation	1,022	816
Amortization of intangible assets	938	1,321
Amortization of debt discount and issuance costs	1,429	1,266
Amortization of deferred commissions	3,464	2,827
Non-cash operating lease cost	1,825	1,498
Unrealized (gain) foreign exchange	(2,219)	(615)
Interest accrued on 2024 Convertible Notes	737	677
Share-based compensation	11,632	10,329
Changes in operating assets and liabilities:
Accounts receivable	33,359	27,834
Deferred commissions	(3,594)	(2,338)
Other assets	347	1,103
Accounts payable	1,823	(2,599)
Accrued expenses and other current liabilities	(8,438)	(8,767)
Deferred revenue	(9,624)	(10,878)
Operating lease liabilities	(1,808)	(1,484)
Net cash (used in) provided by operating activities	7,667	2,848
Cash flows from investing activities:
Acquisition of property and equipment	(1,081)	(2,449)
Net cash used in investing activities	(1,081)	(2,449)
Cash flows from financing activities:
Proceeds from issuance of ordinary shares related to exercise of stock awards	3,626	1,604
Proceeds from issuance of ordinary shares related to employee stock purchase plan	2,799	2,287
Repayment of borrowings	0	(5)
Net cash from financing activities	6,425	3,886
Net increase (decrease) in cash and cash equivalents	13,011	4,285
Cash and cash equivalents at beginning of the period	162,855	177,075
Effect of exchange rate changes on cash and cash equivalents	(2,870)	(3,548)
Cash and cash equivalents at end of the period	$ 172,996	$ 177,812

Organization and Summary of Sig

Organization and Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Summary of Significant Accounting Policies	Organization and Summary of Significant Accounting Policies Business Talend S.A. (“the Company”) is a leader in data integration and data integrity. Talend’s software platform, Talend Data Fabric, integrates data and applications in real-time across modern big data and cloud environments, as well as traditional systems, allowing organizations to develop a unified view of their business and customers. The Company, organized under the laws of France in 2005, has its registered office located at 5-7, rue Salomon de Rothschild, 92150 Suresnes, France. Basis of presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) and reflect, in the opinion of management, all adjustments, consisting of normal recurring adjustments and accruals, necessary to present fairly the consolidated balance sheets as of March 31, 2021 and December 31, 2020, the consolidated statements of operations, the consolidated statements of comprehensive loss and the consolidated statements of stockholders’ equity for and the consolidated statements of cash flows for the three months ended March 31, 2021 and March 31, 2020. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted in accordance with the rules and regulations of the Securities and Exchange Commission (“SEC”). The unaudited condensed consolidated financial statements include the accounts of the Company and its subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. These unaudited condensed consolidated financial statements should be read in conjunction with the audited Consolidated Financial Statements and accompanying Notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020 filed with the SEC on March 1, 2021. Pending Acquisition by Thoma Bravo On March 10, 2021, the Company entered into a Memorandum of Understanding (the “MoU”) with Tahoe Bidco (Cayman) LLC, an exempted company incorporated under the laws of the Cayman Islands (“Parent”) and an affiliate of Thoma Bravo, L.P. (“Thoma Bravo”), a leading private equity investment firm focused on the software and technology-enabled services sectors. Pursuant to the MoU, Parent has agreed to cause Tahoe Bidco B.V., a private company with limited liability ( besloten vennootschap met beperkte aansprakelijkheid ) organized under the laws of the Netherlands and an affiliated entity of Thoma Bravo and Parent to commence a tender offer to acquire all of the outstanding ordinary shares and American Depositary Shares (“ADSs”) of the Company, for $66.00 per ordinary share and ADS (each ADS representing one ordinary share) in cash. The offer values the Company at approximately $2.4 billion and is expected to be completed in the third calendar quarter of 2021. The closing of the transaction is subject to the valid tender pursuant to the tender offer of ordinary shares and ADSs of the Company representing – together with ordinary shares and ADSs of the Company then beneficially owned by Thoma Bravo, if any – at least 80% of the outstanding ordinary shares and ADSs, receipt of customary transaction regulatory approvals (including French foreign investment control procedure) and other customary closing conditions. If the MoU is terminated under certain circumstances, the Company will be required to pay to Parent a termination fee of approximately $48 million. The MoU contains representations, warranties and covenants of Parent and the Company that are customary for a transaction of this nature, including among others, covenants regarding the conduct of the Company’s business during the pendency of the transactions Refer to Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations for further details. Use of estimates The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Significant items subject to such estimates include, but are not limited to, revenue recognition (including allocation of the transaction price to separate performance obligations and the determination of the stand-alone selling price), the amortization period for deferred commissions, contract period of leases, fair value of acquired intangible assets and goodwill, and share-based compensation expense. These estimates and assumptions are based on management’s best estimates and judgment. Management regularly evaluates its estimates and assumptions using historical experience and other factors; however, actual results could differ significantly from these estimates. Summary of significant accounting policies Except for the accounting policies described below, there have been no changes to the Company’s significant accounting polices disclosed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020, filed with the SEC on March 1, 2021, that have had a material impact on the Company’s condensed consolidated financial statements and related notes. Recently adopted accounting standards In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. This standard simplifies the accounting for income taxes by eliminating certain exceptions to the guidance in Topic 740 related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period and the recognition of deferred tax liabilities for outside basis differences. The new guidance also simplifies aspects of the accounting for franchise taxes and enacted changes in tax laws or rates and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill and allocating consolidated income taxes to separate financial statements of entities not subject to income tax. ASU 2019-12 is effective for fiscal years beginning after December 15, 2020, including interim periods therein, with early adoption permitted. Upon adoption, the Company must apply certain aspects of this standard retrospectively for all periods presented while other aspects are applied on a modified retrospective basis through a cumulative-effect adjustment to retained earnings as of the beginning of the fiscal year of adoption. The Company adopted ASU 2019-12 effective January 1, 2021 and the adoption did not have a material impact on our consolidated financial statements. Accounting standards issued not yet adopted In August 2020, the FASB issued ASU 2020-06, Debt-Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging-Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity. ASU 2020-06 simplifies the accounting for convertible instruments by removing the separation models in Subtopic 470-20 that required embedded conversion features to be separated from the host contract for convertible instruments with conversion features that are not required to be accounted for as derivatives under Topic 815, Derivatives and Hedging, or that do not result in substantial premiums accounted for as paid-in capital. Consequently, a convertible debt instrument will be accounted for as a single liability measured at its amortized cost and a convertible preferred stock will be accounted for as a single equity instrument measured at its historical cost, as long as no other features require bifurcation and recognition as derivatives. The new standard also requires entities to use the if-converted method for all convertible instruments in the diluted earnings per share calculation and include the effect of share settlement for instruments that may be settled in cash or shares, except for certain liability-classified share-based payment awards. ASU 2020-06 is effective for the Company beginning January 1, 2022, although early adoption is permitted for fiscal periods beginning January 1, 2021. The new standard can be adopted using either a modified or full retrospective transition method. The Company is currently evaluating the impact of ASU 2020-06 on its consolidated financial statements.

Revenue from Contracts with Cus

Revenue from Contracts with Customers	3 Months Ended
	Mar. 31, 2021
Revenue from Contract with Customer [Abstract]
Revenue from Contracts with Customers	Revenue from Contracts with Customers Contract Liabilities Liabilities are recorded for amounts that are collected in advance of the satisfaction of performance obligations. These liabilities are classified as current and non-current contract liabilities – deferred revenue in the consolidated balance sheet. Deferred revenue, including current and non-current balances, was $160.0 million and $172.8 million as of March 31, 2021 and December 31, 2020, respectively. Revenue recognized from the deferred revenue balances at the beginning of each period was $63.1 million and $55.4 million for the three months ended March 31, 2021 and 2020, respectively. Remaining Performance Obligations The Company’s contracts with customers include amounts allocated to performance obligations of $233.4 million that will be satisfied at a later date. As of March 31, 2021, $175.8 million of deferred revenue and backlog is expected to be recognized from remaining performance obligations over the next 12 months, and approximately $57.6 million thereafter. Contract assets The Company may record assets for amounts related to performance obligations that are satisfied but not yet billed and/or collected. These assets, or unbilled revenue, are classified as accounts receivable, net in the consolidated balance sheet. Unbilled revenue was $2.3 million and $2.8 million as of March 31, 2021 and December 31, 2020, respectively. Deferred Commissions The Company recognizes sales commissions earned by the Company’s sales force that are considered incremental and recoverable costs of obtaining a contract with a customer as deferred commissions in the consolidated balance sheet. Deferred commissions, including current and non-current balances, were $39.3 million and $39.7 million as of March 31, 2021 and December 31, 2020, respectively. Amortization expense of deferred commissions, was $3.5 million and $2.8 million for the three months ended March 31, 2021 and 2020, respectively. There were no impairments of assets related to Company’s deferred commissions during the period ended March 31, 2021. Disaggregation of Revenues The following table sets forth the Company’s total revenue by region for the periods indicated (in thousands). The revenues by geographic region were determined based on the country where the sale took place. Three Months Ended March 31, 2021 2020 Americas $ 35,800 $ 31,167 EMEA 35,653 29,886 Asia Pacific 8,465 7,066 Total revenue $ 79,918 $ 68,119 Revenues from the Company’s country of domicile, based on sales revenue recognized from customers in France, totaled $14.4 million and $10.9 million for the three months ended March 31, 2021 and 2020, respectively.

Net Loss Per Share

Net Loss Per Share	3 Months Ended
	Mar. 31, 2021
Earnings Per Share [Abstract]
Net Loss Per Share	Net Loss Per Share Basic net income (loss) per share is computed by dividing net income (loss) for the period by the weighted-average number of shares outstanding during the period. In periods of net income, diluted net income per share is computed by dividing net income for the period by the basic weighted-average number of shares plus any dilutive potential ordinary shares outstanding during the period. As the Company was in a loss position for both of the three months ended March 31, 2021 and 2020, the diluted loss per share is equal to basic loss per share because the effects of potentially dilutive shares, which include shares from share-based awards and convertible senior notes, were anti-dilutive. During 2019, the Company issued 1.75% Convertible Senior Notes due September 1, 2024 (the “2024 Notes”) (see Note 6, Debt, for more details). Since the Company may settle the principal amount of the outstanding 2024 Notes in a combination of cash and shares, the Company uses the if-converted method for calculating any potential dilutive effect of the conversion spread on the diluted net income per ordinary share when the average market price of the Company’s ordinary shares, each represented by an ADS, for a given period exceeds the initial conversion price of €51.75 per share. The net loss and weighted average number of shares used in the calculation of basic and diluted earnings per share are as follows (in thousands, except per share data): Three Months Ended March 31, 2021 2020 Numerator (basic and diluted): Net loss $ (23,226) $ (18,142) Denominator (basic and diluted): Weighted-average ordinary shares outstanding 32,218 31,180 Basic and diluted net loss per share $ (0.72) $ (0.58)

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The Company reports assets and liabilities recorded at fair value on the Company’s consolidated balance sheets based upon the level of judgment associated with inputs used to measure their fair value. Hierarchical levels that are directly related to the amount of judgment associated with the inputs to the valuation of these assets or liabilities are as follows: • Level 1: observable quoted prices (unadjusted) in active markets for identical financial assets or liabilities. • Level 2: inputs other than quoted prices (other than level 1) in active markets, that are observable either directly (i.e. as prices) or indirectly (i.e. derived from prices). • Level 3: unobservable inputs that are supported by little or no market data, and may require significant management judgment or estimation. The fair value measurement level within the fair value hierarchy for a particular asset or liability is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques maximize the use of observable inputs and minimize the use of unobservable inputs. Financial instruments not measured at fair value on the Company's consolidated balance sheet, but which require disclosure of their fair values include: cash and cash equivalents, accounts receivable and certain other receivables, deposits, accounts payable and certain other payables and the 2024 Notes. The fair values of these financial instruments, other than the 2024 Notes, are deemed to approximate their carrying amount. The fair values of cash and cash equivalents, accounts receivable and certain other receivables, deposits, accounts payable and certain other payables are categorized as Level 1. The fair value of the 2024 Notes was categorized as Level 2 and was estimated based on a discounted cash flow method using a market interest rate for similar debt. As of March 31, 2021, the fair value of the 2024 Notes was $146.3 million. There were no transfers between levels of the fair value hierarchy during the three month periods ended March 31, 2021 or 2020.

Balance Sheet Components

Balance Sheet Components	3 Months Ended
	Mar. 31, 2021
Balance Sheet Related Disclosures [Abstract]
Balance Sheet Components	Balance Sheet Components Accrued expenses and other liabilities consisted of the following (in thousands): March 31, 2021 December 31, 2020 Accrued compensation and benefits $ 23,237 $ 30,371 VAT payable 5,039 7,889 Other taxes 870 885 Contingent liabilities 633 703 Other current liabilities 8,055 6,872 Accrued expenses and other liabilities $ 37,834 $ 46,720 Property and equipment, net consisted of the following (in thousands): March 31, 2021 December 31, 2020 Computer equipment and software $ 13,073 $ 12,905 Fixtures and fittings 3,530 3,496 Leasehold improvements 4,844 4,918 Property and equipment, gross 21,447 21,319 Less: accumulated depreciation (12,393) (12,046) Property and equipment, net $ 9,054 $ 9,273 Depreciation expen se related to property and equipment was $1.0 million and $0.8 million for the three months periods ended March 31, 2021 and 2020, respectively. Intangible assets as of March 31, 2021 and December 31, 2020 included the following (in thousands): March 31, 2021 December 31, 2020 Gross Accumulated Net Gross Accumulated Net Weighted Customer relationships $ 5,052 $ (5,052) $ — $ 5,134 $ (5,134) $ 0 0 years Acquired developed technology 19,929 (11,746) 8,183 20,329 (11,093) 9,236 2 years Total $ 24,981 $ (16,798) $ 8,183 $ 25,463 $ (16,227) $ 9,236 Amortization expense for intangible assets was $0.9 million and $1.3 million for the three months periods ended March 31, 2021 and 2020, respectively. The following table presents the estimated future amortization expense related to intangible assets as of March 31, 2021 (in thousands): Amount Remainder of 2021 $ 2,783 2022 3,500 2023 1,900 2024 — Thereafter — Total amortization expense $ 8,183

Debt

Debt	3 Months Ended
	Mar. 31, 2021
Debt Disclosure [Abstract]
Debt	Debt Convertible Senior Notes due September 1, 2024 In September 2019, the Company issued an aggregate principal amount of €125.0 million of the 2024 Notes and an additional €14.8 million pursuant to the partial exercise of the option to purchase additional 2024 Notes granted to the initial purchasers, in a private placement, pursuant to an exemption from the registration requirements afforded by Section 4(a)(2) of the Securities Act of 1933, as amended (the “Securities Act”), to qualified institutional buyers (as defined in Rule 144A promulgated under the Securities Act). The net proceeds from the issuance, after deducting initial purchaser discounts and debt issuance costs of €6.0 million, were €133.8 million. The 2024 Notes mature on September 1, 2024, unless earlier repurchased, redeemed or converted, and bear interest at a fixed rate of 1.75% per year payable semi-annually on March 1 and September 1 of each year, beginning on March 1, 2020. Each €1,000 of principal amount of the 2024 Notes will initially be convertible, subject to adjustment upon the occurrence of specified events, into 19.3234 ADSs, corresponding to 19.3234 of the Company’s ordinary shares per €1,000 principal amount of the 2024 Notes as of the date hereof, which initial conversion rate is equivalent to an initial conversion price of approximately €51.75 per ADS calculated on the basis of the closing price of the Company’s ADSs of $38.72 and a euro to U.S. Dollar exchange rate of €1 to $1.1036 on the pricing date of the 2024 Notes. Refer to Note 9, Debt , of the Company’s consolidated financial statements for the year ended December 31, 2020 for details of the issuance of the 2024 Notes. As of March 31, 2021, none of the conditions permitting the holders of the 2024 Notes to early convert had been met. Therefore, the 2024 Notes were classified as long-term debt for such period. The net carrying amount of the 2024 Notes was as follows as of March 31, 2021 and December 31, 2020 (in thousands): March 31, 2021 December 31, 2020 Principal $ 163,913 $ 171,599 Unamortized debt discount (16,766) (18,704) Unamortized debt issuance costs (4,262) (4,766) Net carrying amount $ 142,885 $ 148,129 The net carrying amount of the equity component of the 2024 Notes was as follows as of March 31, 2021 and December 31, 2020 (in thousands): March 31, 2021 December 31, 2020 Gross amount $ 21,866 $ 21,866 Allocated debt issuance costs (945) (945) Net carrying amount $ 20,921 $ 20,921 Interest expense related to the 2024 Notes was as follows during the three months ended March 31, 2021 and 2020 (in thousands): Three Months Ended March 31, 2021 2020 Contractual interest expense $ 737 $ 677 Amortization of debt discount 1,130 998 Amortization of issuance costs 299 268 Total $ 2,166 $ 1,943

Equity Incentive Plans

Equity Incentive Plans	3 Months Ended
	Mar. 31, 2021
Share-based Payment Arrangement [Abstract]
Equity Incentive Plans	Equity Incentive PlansIn June 2020, the Company's shareholders delegated authority to the Company's board of directors to grant stock options and RSUs to employees, and warrants (BSA) to the company's directors and consultants, superseding and replacing the previous delegations of authority to grant equity awards. Consequently, in August 2020, the Company adopted the 2020 Free Share Plan (the "Free Share Plan") and the 2020 Stock Option Plan (the "Stock Option Plan"). The Free Share Plan provides for the grant of RSUs to the Company's employees and employees of any company or group in which the Company holds, directly or indirectly, 10% of the share capital or voting rights as of the date of the grant. The Stock Option Plan provides for the grant of stock options to the Company's employees and directors. The Company no longer grants employee warrants (BSPCE) as the Company no longer meets the eligibility criteria for granting BSPCEs. As of March 31, 2021, there were 1,692,810 ordinary shares available for future grants of stock options, RSUs and warrants (BSA) under the Company’s share pool reserve. Stock options and warrants Most of our stock options and employee warrants (BSPCE) vest over four years, with 25% on the one year anniversary of the grant and 1/16th on a quarterly basis thereafter. Options have a contractual life of ten years and generally individuals must continue to provide services to the Company in order to vest. Employee warrants (BSPCE) are a specific type of option to acquire ordinary shares available to qualifying companies in France that meet certain criteria. Otherwise, employee warrants (BSPCE) function in the same manner as stock options. In general, warrants (BSA) vest quarterly over a one year period. In addition to any exercise price payable by a holder upon the exercise of any warrants (BSA), pursuant to the relevant shareholders' delegation to the board, such warrants need to be subscribed for a price at least equal to 5% of the volume weighted average price of the last five trading sessions on the Nasdaq Global Market preceding the date of allocation of the BSA by the board of directors. Otherwise, warrants (BSA) function in the same manner as stock options. The following table summarizes the activity and related weighted-average exercise prices (“WAEP”) and weighted-average remaining contractual term (“WACT”) of the Company’s stock options and warrants for the three months ended March 31, 2021 (in thousands, except exercise price per option): Stock options outstanding BSPCE warrants outstanding BSA warrants outstanding WAEP per share WACT (in years) Aggregate intrinsic value Balance as of December 31, 2020 1,726 108 235 $ 23.97 6.1 $ 31,789 Granted 4 — 1 48.41 Exercised (219) (23) — 14.73 Forfeited (21) — (3) 30.90 Balance as of March 31, 2021 1,490 85 233 $ 23.96 6.1 $ 71,726 Vested and expected to vest as of March 31, 2021 1,363 85 232 $ 23.18 5.8 $ 67,987 Exercisable as of March 31, 2021 847 84 218 $ 18.06 4.3 $ 52,359 The total intrinsic values of stock options and warrants exercised during the period ended March 31, 2021 was $9.7 million. Restricted Stock Units (RSUs) RSUs vest upon either performance-based or service-based criteria. Performance-based RSUs are typically granted such that they vest upon the achievement of certain software subscription sales targets, during a specified performance period, subject to the satisfaction of certain time-based service criteria. Compensation expense from these awards is equal to the fair market value of the Company’s ordinary shares on the date of grant and is recognized over the remaining service period based on the probable outcome of achievement of the financial metrics used in the specific grant’s performance criteria. Management’s estimate of the number of shares expected to vest is based on the anticipated achievement of the specified non-market performance criteria, which are assessed at each reporting period. In general, service-based RSUs vest over a four years period, with 25% vesting on the one year anniversary of the grant and equal quarterly installments thereafter. A summary of RSU activity under all of the plans as of March 31, 2021 is presented in the following table (in thousands, except the weighted-average grant date fair value per RSU): Number of service- based RSUs Number of performance- based RSUs Weighted-average grant date fair value Balance as of December 31, 2020 2,388 480 $ 43.26 Granted 96 — 48.41 Vested and released (193) (43) 46.26 Forfeited (47) (128) 39.46 Balance as of March 31, 2021 2,244 309 $ 41.26 Expected to vest as of March 31, 2021 1,875 253 $ 41.47 Employee Stock Purchase Plan In the fourth quarter of 2017, the Company established the 2017 Employee Stock Purchase Plan (the “ESPP”), which was amended and restated in August 2020. In June 2020, the Company's shareholders authorized 550,000 shares for future issuance under the ESPP, which superseded and replaced the shares previously available for issuance under ESPP. The ESPP allows the Company’s employees to purchase ADSs, with each ADS representing one ordinary share of the Company, at a discount through payroll deductions up to 15% of their eligible compensation, subject to any plan limitations. The ESPP has two consecutive offering periods of approximately six months in length during the year and the purchase price of the ADSs is 85% of the lower of the fair value of the Company’s ADSs on the first trading day or on the last trading day of the offering period. A total of 390,436 ADSs are available for sale under the ESPP as of March 31, 2021. As of March 31, 2021, $0.9 million has been withheld on behalf of employees for a future purchase under the ESPP and is recorded in accrued compensation benefits. Compensation expense Cost of revenue and operating expenses include employee share-based compensation expense as follows (in thousands): Three Months Ended March 31, 2021 2020 Cost of revenue - subscriptions $ 989 $ 248 Cost of revenue - professional services 470 406 Sales and marketing 4,028 2,454 Research and development 2,602 2,957 General and administrative 3,543 4,264 Total share-based compensation expense $ 11,632 $ 10,329 As of March 31, 2021, the Company had $44.8 million of total unrecognized share-based compensation expense relating to unvested stock options, employee warrants (BSPCE), warrants (BSA) and RSUs, which are expected to be recognized over a weighted-average period of approximately 1.6 years.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Legal Proceedings In the ordinary course of business, the Company may be involved in various legal proceedings and claims related to intellectual property rights, commercial disputes, employment and wage and hour laws, alleged securities laws violations or other investor claims and other matters. For example, the Company has been, and may in the future be, put on notice and sued by third parties for alleged infringement of their proprietary rights, including patent infringement. The Company evaluates these claims and lawsuits with respect to their potential merits, the Company’s potential defenses and counterclaims, and the expected effect on it of defending the claims and a potential adverse result. The Company is not presently a party to any legal proceedings that in the opinion of its management, if determined adversely to it, would have a material adverse effect on its business, financial condition or results of operations. The Company accrues estimates for resolution of legal proceedings when losses are probable and estimable. Although the results of legal proceedings and claims are unpredictable, the Company believes that there is less than a reasonable possibility that the Company will incur a material loss with respect to such legal proceedings and claims. As a result, the Company has not recorded an accrual for such contingencies as of March 31, 2021.

Income Tax

Income Tax	3 Months Ended
	Mar. 31, 2021
Income Tax Disclosure [Abstract]
Income Tax	Income Tax The Company provides for income taxes in interim periods based on the estimated annual effective tax rate for the year, adjusting for discrete items in the quarter in which they arise. The annual effective tax rate after discrete items was (0.6)% and (0.3)% for the three months ended March 31, 2021 and 2020, respectively. The 2021 and 2020 annual effective tax rates differed from the French statutory income tax rate of 28.0% for 2021 and 2020, primarily due to a valuation allowance on current year losses in US and France. The Company files income tax returns in France as well as many foreign jurisdictions. The tax years 2007 to 2020 remain open to examination by the various jurisdictions in which the Company is subject to tax. Fiscal years outside the normal statutes of limitation remain open to audit by tax authorities due to tax attributes generated in those early years which have been carried forward and may be audited in subsequent years when utilized.

Organization and Summary of S_2

Organization and Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of presentation	Basis of presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) and reflect, in the opinion of management, all adjustments, consisting of normal recurring adjustments and accruals, necessary to present fairly the consolidated balance sheets as of March 31, 2021 and December 31, 2020, the consolidated statements of operations, the consolidated statements of comprehensive loss and the consolidated statements of stockholders’ equity for and the consolidated statements of cash flows for the three months ended March 31, 2021 and March 31, 2020. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted in accordance with the rules and regulations of the Securities and Exchange Commission (“SEC”). The unaudited condensed consolidated financial statements include the accounts of the Company and its subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.
Use of estimates	Use of estimates The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Significant items subject to such estimates include, but are not limited to, revenue recognition (including allocation of the transaction price to separate performance obligations and the determination of the stand-alone selling price), the amortization period for deferred commissions, contract period of leases, fair value of acquired intangible assets and goodwill, and share-based compensation expense. These estimates and assumptions are based on management’s best estimates and judgment. Management regularly evaluates its estimates and assumptions using historical experience and other factors; however, actual results could differ significantly from these estimates.
Summary of significant accounting policies, recently adopted accounting standards and accounting standards issued not yet adopted	Summary of significant accounting policies Except for the accounting policies described below, there have been no changes to the Company’s significant accounting polices disclosed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020, filed with the SEC on March 1, 2021, that have had a material impact on the Company’s condensed consolidated financial statements and related notes. Recently adopted accounting standards In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. This standard simplifies the accounting for income taxes by eliminating certain exceptions to the guidance in Topic 740 related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period and the recognition of deferred tax liabilities for outside basis differences. The new guidance also simplifies aspects of the accounting for franchise taxes and enacted changes in tax laws or rates and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill and allocating consolidated income taxes to separate financial statements of entities not subject to income tax. ASU 2019-12 is effective for fiscal years beginning after December 15, 2020, including interim periods therein, with early adoption permitted. Upon adoption, the Company must apply certain aspects of this standard retrospectively for all periods presented while other aspects are applied on a modified retrospective basis through a cumulative-effect adjustment to retained earnings as of the beginning of the fiscal year of adoption. The Company adopted ASU 2019-12 effective January 1, 2021 and the adoption did not have a material impact on our consolidated financial statements. Accounting standards issued not yet adopted In August 2020, the FASB issued ASU 2020-06, Debt-Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging-Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity. ASU 2020-06 simplifies the accounting for convertible instruments by removing the separation models in Subtopic 470-20 that required embedded conversion features to be separated from the host contract for convertible instruments with conversion features that are not required to be accounted for as derivatives under Topic 815, Derivatives and Hedging, or that do not result in substantial premiums accounted for as paid-in capital. Consequently, a convertible debt instrument will be accounted for as a single liability measured at its amortized cost and a convertible preferred stock will be accounted for as a single equity instrument measured at its historical cost, as long as no other features require bifurcation and recognition as derivatives. The new standard also requires entities to use the if-converted method for all convertible instruments in the diluted earnings per share calculation and include the effect of share settlement for instruments that may be settled in cash or shares, except for certain liability-classified share-based payment awards. ASU 2020-06 is effective for the Company beginning January 1, 2022, although early adoption is permitted for fiscal periods beginning January 1, 2021. The new standard can be adopted using either a modified or full retrospective transition method. The Company is currently evaluating the impact of ASU 2020-06 on its consolidated financial statements.
Fair Value Measurements	Fair Value Measurements The Company reports assets and liabilities recorded at fair value on the Company’s consolidated balance sheets based upon the level of judgment associated with inputs used to measure their fair value. Hierarchical levels that are directly related to the amount of judgment associated with the inputs to the valuation of these assets or liabilities are as follows: • Level 1: observable quoted prices (unadjusted) in active markets for identical financial assets or liabilities. • Level 2: inputs other than quoted prices (other than level 1) in active markets, that are observable either directly (i.e. as prices) or indirectly (i.e. derived from prices). • Level 3: unobservable inputs that are supported by little or no market data, and may require significant management judgment or estimation. The fair value measurement level within the fair value hierarchy for a particular asset or liability is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques maximize the use of observable inputs and minimize the use of unobservable inputs. Financial instruments not measured at fair value on the Company's consolidated balance sheet, but which require disclosure of their fair values include: cash and cash equivalents, accounts receivable and certain other receivables, deposits, accounts payable and certain other payables and the 2024 Notes. The fair values of these financial instruments, other than the 2024 Notes, are deemed to approximate their carrying amount.

Revenue from Contracts with C_2

Revenue from Contracts with Customers (Tables)	3 Months Ended
	Mar. 31, 2021
Revenue from Contract with Customer [Abstract]
Disclosure of revenues by region	The following table sets forth the Company’s total revenue by region for the periods indicated (in thousands). The revenues by geographic region were determined based on the country where the sale took place. Three Months Ended March 31, 2021 2020 Americas $ 35,800 $ 31,167 EMEA 35,653 29,886 Asia Pacific 8,465 7,066 Total revenue $ 79,918 $ 68,119

Net Loss Per Share (Tables)

Net Loss Per Share (Tables)	3 Months Ended
	Mar. 31, 2021
Earnings Per Share [Abstract]
Schedule of net loss and weighted average number of shares used in the calculation of basic and diluted earnings per share	The net loss and weighted average number of shares used in the calculation of basic and diluted earnings per share are as follows (in thousands, except per share data): Three Months Ended March 31, 2021 2020 Numerator (basic and diluted): Net loss $ (23,226) $ (18,142) Denominator (basic and diluted): Weighted-average ordinary shares outstanding 32,218 31,180 Basic and diluted net loss per share $ (0.72) $ (0.58)

Balance Sheet Components (Table

Balance Sheet Components (Tables)	3 Months Ended
	Mar. 31, 2021
Balance Sheet Related Disclosures [Abstract]
Schedule of accrued expenses and other liabilities	Accrued expenses and other liabilities consisted of the following (in thousands): March 31, 2021 December 31, 2020 Accrued compensation and benefits $ 23,237 $ 30,371 VAT payable 5,039 7,889 Other taxes 870 885 Contingent liabilities 633 703 Other current liabilities 8,055 6,872 Accrued expenses and other liabilities $ 37,834 $ 46,720
Schedule of property and equipment	Property and equipment, net consisted of the following (in thousands): March 31, 2021 December 31, 2020 Computer equipment and software $ 13,073 $ 12,905 Fixtures and fittings 3,530 3,496 Leasehold improvements 4,844 4,918 Property and equipment, gross 21,447 21,319 Less: accumulated depreciation (12,393) (12,046) Property and equipment, net $ 9,054 $ 9,273
Schedule of intangible assets	Intangible assets as of March 31, 2021 and December 31, 2020 included the following (in thousands): March 31, 2021 December 31, 2020 Gross Accumulated Net Gross Accumulated Net Weighted Customer relationships $ 5,052 $ (5,052) $ — $ 5,134 $ (5,134) $ 0 0 years Acquired developed technology 19,929 (11,746) 8,183 20,329 (11,093) 9,236 2 years Total $ 24,981 $ (16,798) $ 8,183 $ 25,463 $ (16,227) $ 9,236
Schedule of estimated future amortization expense related to intangible assets	The following table presents the estimated future amortization expense related to intangible assets as of March 31, 2021 (in thousands): Amount Remainder of 2021 $ 2,783 2022 3,500 2023 1,900 2024 — Thereafter — Total amortization expense $ 8,183

Debt (Tables)

Debt (Tables)	3 Months Ended
	Mar. 31, 2021
Debt Disclosure [Abstract]
Schedule of carrying amount of notes and equity components of debt	The net carrying amount of the 2024 Notes was as follows as of March 31, 2021 and December 31, 2020 (in thousands): March 31, 2021 December 31, 2020 Principal $ 163,913 $ 171,599 Unamortized debt discount (16,766) (18,704) Unamortized debt issuance costs (4,262) (4,766) Net carrying amount $ 142,885 $ 148,129 The net carrying amount of the equity component of the 2024 Notes was as follows as of March 31, 2021 and December 31, 2020 (in thousands): March 31, 2021 December 31, 2020 Gross amount $ 21,866 $ 21,866 Allocated debt issuance costs (945) (945) Net carrying amount $ 20,921 $ 20,921
Schedule of interest expense related to 2024 Notes	Interest expense related to the 2024 Notes was as follows during the three months ended March 31, 2021 and 2020 (in thousands): Three Months Ended March 31, 2021 2020 Contractual interest expense $ 737 $ 677 Amortization of debt discount 1,130 998 Amortization of issuance costs 299 268 Total $ 2,166 $ 1,943

Equity Incentive Plans (Tables)

Equity Incentive Plans (Tables)	3 Months Ended
	Mar. 31, 2021
Share-based Payment Arrangement [Abstract]
Schedule of number of options and warrants outstanding and weighted-average exercise prices ("WAEP") of share options and warrants	The following table summarizes the activity and related weighted-average exercise prices (“WAEP”) and weighted-average remaining contractual term (“WACT”) of the Company’s stock options and warrants for the three months ended March 31, 2021 (in thousands, except exercise price per option): Stock options outstanding BSPCE warrants outstanding BSA warrants outstanding WAEP per share WACT (in years) Aggregate intrinsic value Balance as of December 31, 2020 1,726 108 235 $ 23.97 6.1 $ 31,789 Granted 4 — 1 48.41 Exercised (219) (23) — 14.73 Forfeited (21) — (3) 30.90 Balance as of March 31, 2021 1,490 85 233 $ 23.96 6.1 $ 71,726 Vested and expected to vest as of March 31, 2021 1,363 85 232 $ 23.18 5.8 $ 67,987 Exercisable as of March 31, 2021 847 84 218 $ 18.06 4.3 $ 52,359
Schedule of summary of RSUs activity under all of the plans	A summary of RSU activity under all of the plans as of March 31, 2021 is presented in the following table (in thousands, except the weighted-average grant date fair value per RSU): Number of service- based RSUs Number of performance- based RSUs Weighted-average grant date fair value Balance as of December 31, 2020 2,388 480 $ 43.26 Granted 96 — 48.41 Vested and released (193) (43) 46.26 Forfeited (47) (128) 39.46 Balance as of March 31, 2021 2,244 309 $ 41.26 Expected to vest as of March 31, 2021 1,875 253 $ 41.47
Schedule of compensation costs and operating expenses	Cost of revenue and operating expenses include employee share-based compensation expense as follows (in thousands): Three Months Ended March 31, 2021 2020 Cost of revenue - subscriptions $ 989 $ 248 Cost of revenue - professional services 470 406 Sales and marketing 4,028 2,454 Research and development 2,602 2,957 General and administrative 3,543 4,264 Total share-based compensation expense $ 11,632 $ 10,329

Organization and Summary of S_3

Organization and Summary of Significant Accounting Policies (Details) - Thoma Bravo - Talend S.A. - Forecast $ / shares in Units, $ in Millions	3 Months Ended
	Sep. 30, 2021USD ($)$ / shares
Debt Instrument [Line Items]
Acquisition share price (in dollars per share) | $ / shares	$ 66
Acquisitions price	$ 2,400
Percent of shares beneficially owned	80.00%
Termination fee	$ 48

Revenue from Contracts with C_3

Revenue from Contracts with Customers - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Revenues by geographic region
Deferred revenue	$ 160,000,000		$ 172,800,000
Revenue recognized from contract with customer	63,100,000	$ 55,400,000
Unbilled revenue	2,300,000		2,800,000
Deferred commissions	39,300,000		$ 39,700,000
Amortization of deferred commissions	3,464,000	2,827,000
Impairment of assets related to deferred commissions	0
Total revenue	79,918,000	68,119,000
France
Revenues by geographic region
Total revenue	$ 14,400,000	$ 10,900,000

Revenue from Contracts with C_4

Revenue from Contracts with Customers - Remaining Performance Obligations (Details) $ in Millions	Mar. 31, 2021USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 233.4
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 175.8
Remaining performance obligations period	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 57.6
Remaining performance obligations period

Revenue from Contracts with C_5

Revenue from Contracts with Customers - Disaggregation of Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenues by geographic region
Total revenue	$ 79,918	$ 68,119
Americas
Revenues by geographic region
Total revenue	35,800	31,167
EMEA
Revenues by geographic region
Total revenue	35,653	29,886
Asia Pacific
Revenues by geographic region
Total revenue	$ 8,465	$ 7,066

Net Loss Per Share (Details)

Net Loss Per Share (Details) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)$ / sharesshares	Mar. 31, 2020USD ($)$ / sharesshares	Dec. 31, 2019€ / shares	Sep. 30, 2019€ / shares
Numerator (basic and diluted):
Net loss | $	$ (23,226)	$ (18,142)
Denominator (basic and diluted):
Weighted-average shares outstanding used to compute net loss per share attributable to ordinary shareholders, diluted (in shares) | shares	32,218	31,180
Weighted-average shares outstanding used to compute net loss per share attributable to ordinary shareholders, basic (in shares) | shares	32,218	31,180
Net loss per share attributable to ordinary shareholders, diluted (in dollars per share) | $ / shares	$ (0.72)	$ (0.58)
Net loss per share attributable to ordinary shareholders, basic (in dollars per share) | $ / shares	$ (0.72)	$ (0.58)
Convertible Senior Notes due in 2024
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Interest rate on debt			1.75%	1.75%
Initial conversion price (in euros per share) | € / shares			€ 51.75	€ 51.75

Fair Value Measurements (Detail

Fair Value Measurements (Details) $ in Millions	Mar. 31, 2021USD ($)
Convertible Senior Notes due in 2024
Fair value measurement
Fair value of debt	$ 146.3

Balance Sheet Components - Accr

Balance Sheet Components - Accrued Expenses and Other Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Balance Sheet Related Disclosures [Abstract]
Accrued compensation and benefits	$ 23,237	$ 30,371
VAT payable	5,039	7,889
Other taxes	870	885
Contingent liabilities	633	703
Other current liabilities	8,055	6,872
Accrued expenses and other liabilities	$ 37,834	$ 46,720

Balance Sheet Components - Prop

Balance Sheet Components - Property and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Property and equipment
Property and equipment, gross	$ 21,447		$ 21,319
Less: accumulated depreciation	(12,393)		(12,046)
Property and equipment, net	9,054		9,273
Depreciation	1,022	$ 816
Computer equipment and software
Property and equipment
Property and equipment, gross	13,073		12,905
Fixtures and fittings
Property and equipment
Property and equipment, gross	3,530		3,496
Leasehold improvements
Property and equipment
Property and equipment, gross	$ 4,844		$ 4,918

Balance Sheet Components - Inta

Balance Sheet Components - Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 24,981		$ 25,463
Accumulated Amortization	(16,798)		(16,227)
Net	8,183		9,236
Amortization expense for intangible assets	938	$ 1,321
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	5,052		5,134
Accumulated Amortization	(5,052)		(5,134)
Net	$ 0		0
Weighted Average Remaining Useful Life	0 years
Acquired developed technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 19,929		20,329
Accumulated Amortization	(11,746)		(11,093)
Net	$ 8,183		$ 9,236
Weighted Average Remaining Useful Life	2 years

Balance Sheet Components - Esti

Balance Sheet Components - Estimated Future Amortization Expense of Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Estimated future amortization expense related to intangible assets
Remainder of 2021	$ 2,783
2022	3,500
2023	1,900
2024	0
Thereafter	0
Net	$ 8,183	$ 9,236

Debt - Convertible Senior Notes

Debt - Convertible Senior Notes due in 2024 (Details) - Convertible Senior Notes due in 2024 € / shares in Units, $ / shares in Units, $ in Thousands	1 Months Ended		3 Months Ended
	Sep. 30, 2019EUR (€)€ / shares	Sep. 30, 2019EUR (€)$ / shares€ / shares	Mar. 31, 2021USD ($)	Mar. 31, 2020USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019€ / shares
Debt Instrument [Line Items]
Aggregate principal amount of notes issued | €	€ 125,000,000	€ 125,000,000
Additional debt issued | €	14,800,000
Debt issuance costs | €	6,000,000
Net proceed received | €	€ 133,800,000
Interest rate on debt	1.75%	1.75%				1.75%
Conversion ratio	0.0193234
Initial conversion price (in euros per share) | € / shares	€ 51.75	€ 51.75				€ 51.75
Closing price (in dollars per share) | $ / shares		€ 38.72
Exchange rate	1.1036	1.1036
Principal			$ 163,913		$ 171,599
Unamortized debt discount			(16,766)		(18,704)
Unamortized debt issuance costs			(4,262)		(4,766)
Net carrying amount			142,885		148,129
Gross amount			21,866		21,866
Allocated debt issuance costs			(945)		(945)
Net carrying amount			20,921		$ 20,921
Contractual interest expense			737	$ 677
Amortization of debt discount			1,130	998
Amortization of issuance costs			299	268
Total			$ 2,166	$ 1,943

Equity Incentive Plans - Contra

Equity Incentive Plans - Contractual Life and Authorized shares (Details)	1 Months Ended	3 Months Ended
	Aug. 31, 2020	Mar. 31, 2021tradingSessionshares
Equity Incentive Plans
Number of ordinary shares available for future issuance (in shares) | shares		1,692,810
Vesting period		4 years
One year anniversary of grant
Equity Incentive Plans
Vesting period		1 year
Vesting percentage		25.00%
Stock options
Equity Incentive Plans
Contractual life		10 years
BSA warrants
Equity Incentive Plans
Vesting period		1 year
Percentage of volume weighted average price		5.00%
Number of trading sessions | tradingSession		5
Free Share Plan | RSUs
Equity Incentive Plans
Percent of the share capital or voting rights	10.00%

Equity Incentive Plans - Stock

Equity Incentive Plans - Stock Options and Warrants (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
WAEP per share
Balance at beginning of period (in dollars per share)	$ 23.97
Granted (in dollars per share)	48.41
Exercised (in dollars per share)	14.73
Forfeited (in dollars per share)	30.90
Balance at end of period (in dollars per share)	23.96
Vested and expected to vest at end of period (in dollars per share)	23.18
Exercisable at end of period (in dollars per share)	$ 18.06
WACT and Aggregate intrinsic value
Outstanding WACT (in years)	6 years 1 month 6 days
Vested and expected to vest at end of period (in years)	5 years 9 months 18 days
Exercisable at end of period (in years)	4 years 3 months 18 days
Outstanding Aggregate intrinsic value	$ 71,726	$ 31,789
Vested and expected to vest aggregate intrinsic value	67,987
Exercisable aggregate intrinsic value	52,359
Total intrinsic value of stock options exercised	$ 9,700
Stock options outstanding
Stock Options
Number of stock options outstanding at beginning of period (in shares)	1,726
Granted (in shares)	4
Exercised (in shares)	(219)
Forfeited (in shares)	(21)
Number of stock options outstanding at end of period (in shares)	1,490
Vested and expected to vest at end of period (in shares)	1,363
Exercisable at end of period (in shares)	847
BSPCE warrants outstanding
Warrants
Unvested balance at beginning of period (in shares)	108
Granted (in shares)	0
Exercised (in shares)	(23)
Forfeited (in shares)	0
Unvested balance at end of period (in shares)	85
Vested and expected to vest at end of period (in shares)	85
Exercisable at end of period (in shares)	84
BSA warrants outstanding
Warrants
Unvested balance at beginning of period (in shares)	235
Granted (in shares)	1
Exercised (in shares)	0
Forfeited (in shares)	(3)
Unvested balance at end of period (in shares)	233
Vested and expected to vest at end of period (in shares)	232
Exercisable at end of period (in shares)	218

Equity Incentive Plans - Restri

Equity Incentive Plans - Restricted Stock Units (RSU) (Details) shares in Thousands	3 Months Ended
	Mar. 31, 2021$ / sharesshares
Equity Incentive Plans
Vesting period	4 years
One year anniversary of grant
Equity Incentive Plans
Vesting period	1 year
Vesting percentage	25.00%
Service-based RSUs
Equity Incentive Plans
Vesting period	4 years
Number of service- based RSUs
Unvested balance at beginning of period (in shares)	2,388
Granted (in shares)	96
Vested and released (in shares)	(193)
Forfeited (in shares)	(47)
Unvested balance at end of period (in shares)	2,244
Expected to vest at end of period (in shares)	1,875
Service-based RSUs | One year anniversary of grant
Equity Incentive Plans
Vesting period	1 year
Vesting percentage	25.00%
Service-based RSUs | Second anniversary of grant
Equity Incentive Plans
Vesting period	1 year
Vesting percentage	25.00%
Service-based RSUs | Third anniversary of grant
Equity Incentive Plans
Vesting period	1 year
Vesting percentage	25.00%
Service-based RSUs | Fourth anniversary of grant
Equity Incentive Plans
Vesting period	1 year
Vesting percentage	25.00%
Performance-based RSUs
Number of service- based RSUs
Unvested balance at beginning of period (in shares)	480
Granted (in shares)	0
Vested and released (in shares)	(43)
Forfeited (in shares)	(128)
Unvested balance at end of period (in shares)	309
Expected to vest at end of period (in shares)	253
Weighted-average grant date fair value
Unvested balance at beginning of period (in dollars per share) | $ / shares	$ 43.26
Granted (in dollars per share) | $ / shares	48.41
Vested and released (in dollars per share) | $ / shares	46.26
Forfeited (in dollars per share) | $ / shares	39.46
Unvested balance at end of period (in dollars per share) | $ / shares	41.26
Expected to vest at end of period (in dollars per share) | $ / shares	$ 41.47

Equity Incentive Plans - Employ

Equity Incentive Plans - Employee Stock Purchase Plan (Details) $ in Millions	3 Months Ended
	Mar. 31, 2021USD ($)tradingSessionshares	Jun. 30, 2020shares
Equity Incentive Plans
Number of ordinary shares available for future issuance (in shares)	1,692,810
Vesting period	4 years
Employee Stock Purchase Plan
Equity Incentive Plans
Number of ordinary shares available for future issuance (in shares)		550,000
Employee Stock Purchase Plan | American Depositary Shares
Equity Incentive Plans
Number of ordinary shares | tradingSession	1
Payroll deduction percentage	15.00%
Number of consecutive offering periods | tradingSession	2
Vesting period	6 months
Fair value of ADSs to calculate purchase price	85.00%
Ordinary shares available for the sale of ESPP (in shares)	390,436
Future employee purchase under the ESPP | $	$ 0.9

Equity Incentive Plans - Compen

Equity Incentive Plans - Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Equity Incentive Plans
Total share-based compensation expense	$ 11,632	$ 10,329
Unrecognized compensation expenses	$ 44,800
Period of recognition for unrecognized compensation expense	1 year 7 months 6 days
Cost of revenue | Subscriptions
Equity Incentive Plans
Total share-based compensation expense	$ 989	248
Cost of revenue | Professional services
Equity Incentive Plans
Total share-based compensation expense	470	406
Sales and marketing
Equity Incentive Plans
Total share-based compensation expense	4,028	2,454
Research and development
Equity Incentive Plans
Total share-based compensation expense	2,602	2,957
General and administrative
Equity Incentive Plans
Total share-based compensation expense	$ 3,543	$ 4,264

Income Tax (Details)

Income Tax (Details)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Tax Disclosure [Abstract]
Annual effective tax rate	(0.60%)	(0.30%)