Kaleyra 10-Q 9 May 22 2022 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2022	May 06, 2022
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2022
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q1
Entity Registrant Name	KALEYRA, INC.
Entity Central Index Key	0001719489
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Shell Company	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Common Stock, Shares Outstanding		43,475,608
Entity Interactive Data Current	Yes
Entity File Number	001-38320
Entity Tax Identification Number	82-3027430
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	17 State Street
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10004
City Area Code	+1 917
Local Phone Number	508 9185
Document Quarterly Report	true
Document Transition Report	false
Common Stock, Par Value $0.0001 Per Share
Document Information [Line Items]
Title of Each Class	Common Stock, par value $0.0001 per share
Trading Symbol	KLR
Name of Each Exchange on Which Registered	NYSE
Warrants, at an Exercise Price of $11.50 per Share of Common Stock
Document Information [Line Items]
Title of Each Class	Warrants, at an exercise price of $11.50 per share of Common Stock
Trading Symbol	KLR WS
Name of Each Exchange on Which Registered	NYSEAMER

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 86,222	$ 90,001
Restricted cash	1,667	1,701
Short-term investments	7,294	6,236
Trade receivables, net	82,038	85,945
Deferred cost	319	341
Prepaid expenses	4,718	5,357
Other current assets	1,662	2,599
Total current assets	183,920	192,180
Property and equipment, net	19,824	18,811
Intangible assets, net	120,575	125,396
Goodwill	110,088	110,465
Deferred tax assets	538	1,230
Other long-term assets	1,464	399
Total Assets	436,409	448,481
Current liabilities:
Accounts payable	69,209	70,942
Lines of credit	4,649	5,256
Current portion of bank and other borrowings	10,657	10,508
Deferred revenue	6,778	9,553
Payroll and payroll related accrued liabilities	8,908	6,907
Other current liabilities	8,813	8,274
Total current liabilities	109,014	111,440
Long-term portion of bank and other borrowings	19,988	22,910
Long-term portion of notes payable	190,625	190,147
Long-term portion of employee benefit obligation	2,393	2,338
Deferred tax liabilities	2,756	2,384
Other long-term liabilities	1,253	1,840
Total Liabilities	326,029	331,059
Commitments and contingencies (Note 15)
Stockholders’ equity (deficit):
Preferred stock, par value of $0.0001 per share; 1,000,000 shares authorized; no shares issued or outstanding
Common stock, par value of $0.0001 per share; 100,000,000 shares authorized as of March 31, 2022 and December 31, 2021; 45,159,891 shares issued and 42,361,833 shares outstanding as of March 31, 2022 and 44,831,695 shares issued and 42,033,637 shares outstanding as of December 31, 2021	4	4
Additional paid-in capital	258,418	251,659
Treasury stock, at cost; 2,798,058 shares as of March 31, 2022 and December 31, 2021	(30,431)	(30,431)
Accumulated other comprehensive loss	(2,639)	(2,010)
Accumulated deficit	(114,972)	(101,800)
Total stockholders’ equity	110,380	117,422
Total liabilities and stockholders’ equity (deficit)	$ 436,409	$ 448,481

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Mar. 31, 2022	Dec. 31, 2021
Statement Of Financial Position [Abstract]
Preferred stock, par value	$ 0.0001	$ 0.0001
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	45,159,891	44,831,695
Common stock, shares outstanding	42,361,833	42,033,637
Treasury stock, shares	2,798,058	2,798,058

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Revenue	$ 80,481	$ 39,714
Cost of revenue	62,743	33,390
Gross profit	17,738	6,324
Operating expenses:
Research and development	4,890	2,868
Sales and marketing	7,100	2,859
General and administrative	15,380	10,602
Total operating expenses	27,370	16,329
Loss from operations	(9,632)	(10,005)
Other income, net	46	45
Financial expense, net	(3,152)	(719)
Foreign currency income	257	355
Loss before income tax expense	(12,481)	(10,324)
Income tax expense	691	34
Net loss	$ (13,172)	$ (10,358)
Net loss per common share, basic and diluted	$ (0.31)	$ (0.34)
Weighted-average shares used in computing net loss per common share, basic and diluted	42,247,518	30,364,943

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (13,172)	$ (10,358)
Other comprehensive income (loss):
Foreign currency translation adjustments	(634)	1,105
Net change in unrealized gain on marketable securities, net of tax	5	(4)
Total other comprehensive income (loss)	(629)	1,101
Total comprehensive loss	$ (13,801)	$ (9,257)

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Stockholders' Equity (Deficit) (Unaudited) - USD ($) $ in Thousands		Total	Cowen	Common Stock	Common StockCowen	Additional Paid-in Capital	Additional Paid-in CapitalCowen	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficict
Beginning balance at Dec. 31, 2020		$ (7,429)		$ 3		$ 93,628		$ (30,431)	$ (2,826)	$ (67,803)
Beginning balance, shares at Dec. 31, 2020				30,288,687				2,798,058
Change in forward share purchase agreement liability		17,528				17,528
Conversion of Note			$ 2,295				$ 2,295
Conversion of Note, shares					303,171
Forfeiture of 2020 Sponsors' Earnout Shares	[1]	1,244				1,244
Forfeiture of 2020 Sponsors' Earnout Shares, shares	[1]			(469,343)
Stock-based compensation (RSUs)		5,011				5,011
Stock-based compensation (RSUs), shares				558,396
Warrants exercised for common stock		2,872				2,872
Warrants exercised for common stock, shares				249,706
Fair value of warrants		(326)				(326)
Net loss		(10,358)								(10,358)
Other comprehensive (loss) income		1,101							1,101
Ending balance at Mar. 31, 2021		11,938		$ 3		122,252		$ (30,431)	(1,725)	(78,161)
Ending balance, shares at Mar. 31, 2021				30,930,617				2,798,058
Beginning balance at Dec. 31, 2021		117,422		$ 4		251,659		$ (30,431)	(2,010)	(101,800)
Beginning balance, shares at Dec. 31, 2021				42,033,637				2,798,058
Stock-based compensation (RSUs)		6,759				6,759
Stock-based compensation (RSUs), shares				328,196
Net loss		(13,172)								(13,172)
Other comprehensive (loss) income		(629)							(629)
Ending balance at Mar. 31, 2022		$ 110,380		$ 4		$ 258,418		$ (30,431)	$ (2,639)	$ (114,972)
Ending balance, shares at Mar. 31, 2022				42,361,833				2,798,058
[1]	On March 16, 2021, upon the final determination that GigAcquisitions, LLC, Cowen Investments II LLC (“Cowen”), Irwin Silverberg and Jeffrey Bernstein (the “Sponsors”) were not entitled to receive the final 50% of the Earnout Shares (“2020 Sponsors’ Earnout Shares”) pursuant to the terms of the Purchase Agreement entered into on February 22, 2019, such number of 2020 Sponsors’ Earnout Shares that did not vest were forfeited by all but one Sponsor. That remaining Sponsor settled its portion of the 2020 Sponsors’ Earnout Shares in cash in lieu of forfeiting its shares.

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Stockholders' Equity (Deficit) (Unaudited) (Parenthetical)	Mar. 16, 2021
Sponsors
Percentage of 2020 sponsor earnout shares that have not vested been forfeited.	50.00%

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Cash Flows from Operating Activities:
Net loss		$ (13,172)	$ (10,358)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization		5,902	909
Stock-based compensation		6,759	4,560
Provision for doubtful accounts		176	813
Realized gains on marketable securities		5	(2)
Employee benefit obligation		514	69
Change in fair value of warrant liability		(534)	1,263
Reversal of accrued interest on forward share purchase agreement			(659)
Non-cash interest expense		490	115
Deferred taxes		820	663
Change in operating assets and liabilities:
Trade receivables		3,010	440
Other current assets		1,504	(164)
Deferred cost		22
Other long-term assets		(1,074)	1,499
Accounts payable		(816)	(4,128)
Other current liabilities		2,334	(2,735)
Deferred revenue		(2,708)	(474)
Long-term liabilities		(40)	(18)
Net cash provided by (used in) operating activities		3,192	(8,207)
Cash Flows from Investing Activities:
Purchase of short-term investments		(1,165)
Sale of short-term investments			546
Purchase of property and equipment		(544)	(91)
Capitalized software development costs		(2,332)	(768)
Purchase of intangible assets			(2)
Net cash used in investing activities		(3,983)	(315)
Cash Flows from Financing Activities:
Repayments on line of credit, net		(525)	(663)
Repayments on term loans		(2,134)	(1,869)
Repayments on notes			(3,750)
Receipts related to forward share purchase agreements			17,045
Proceeds related to settlement of non-forfeited 2020 Sponsor Earnout Shares			1,244
Repayments on capital lease		(29)	(37)
Net cash provided by (used in) financing activities		(2,688)	11,970
Effect of exchange rate changes on cash, cash equivalents and restricted cash		(334)	(911)
Net increase (decrease) in cash, cash equivalents and restricted cash		(3,813)	2,537
Cash, cash equivalents and restricted cash, beginning of period	[1]	91,702	32,970
Cash, cash equivalents and restricted cash, end of period	[1]	87,889	35,507
Supplemental disclosures of cash flow information:
Cash paid for interest		173	368
Non-cash investing and financing activities
Change in value of forward share purchase agreements			(483)
Stock-based compensation capitalized as software development costs			170
Receivable for proceeds from the exercise of warrants			2,872
Conversion of convertible note to common stock			2,295
Restricted stock units granted to employees for bonuses			281
Fair value of warrant liability			344
Reclassification of warrant liability to additional paid-in capital upon exercise of warrants			$ (18)
Consideration payable		(34)
Bandyer Srl
Cash Flows from Investing Activities:
Acquisition, net of cash acquired		$ 58
[1]	As and $1.7 million of restricted cash

Condensed Consolidated Statem_6

Condensed Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Statement Of Cash Flows [Abstract]
Cash and cash equivalents	$ 86,222	$ 90,001
Restricted cash	$ 1,700	$ 1,700

Description of Organization and

Description of Organization and Business Operations	3 Months Ended
	Mar. 31, 2022
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Description of Organization and Business Operations	1. DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS Kaleyra, Inc., formerly GigCapital, Inc., (hereinafter “Kaleyra” or the “Company”), was incorporated in Delaware on October 9, 2017. The Company was formed for the purpose of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with one or more businesses. On February 22, 2019, the Company entered into a stock purchase agreement (the “Stock Purchase Agreement”) by and among the Company, Kaleyra S.p.A., Shareholder Representative Services LLC (the “Seller Representative”), as representative for the holders of the ordinary shares of Kaleyra S.p.A. immediately prior to the closing of the business combination with Kaleyra (the “Business Combination”), and all of the stockholders of all of the Kaleyra S.p.A. stock (collectively, such Kaleyra S.p.A. stockholders, the “Sellers”), for the purpose of the Company acquiring all of the shares of Kaleyra S.p.A. As a result of the Business Combination, which closed on November 25, 2019, the Company (headquartered in Milan, Italy) became a multi-channel integrated communication services provider on a global scale. Kaleyra operates in the Communications Platform as a Service (“CPaaS”) market with operations primarily in Italy, India, Dubai and the United States. In connection with the closing, the Company changed its name from GigCapital, Inc. to Kaleyra, Inc. Kaleyra’s underlying technology used in the platform is the same across all its communication services which can generally be described as “omni-channel mobile first interactive notifications via a public or private cloud implementation”. Kaleyra provides mobile communication services to financial institutions, e-commerce players, OTTs, software companies, logistic enablers, healthcare providers, retailers, and other large organizations worldwide. Through its proprietary cloud communications platforms (collectively, the “Platforms”), Kaleyra manages multi-channel integrated communication services on a global scale, consisting of inbound/outbound messaging solutions, programmable voice and Interactive Voice Response (IVR) configurations, hosted telephone numbers, conversational marketing solutions, RCS, and other types of IP communications services such as e-mail, push notifications, video/audio/chat, and WhatsApp®. On July 29, 2020, Kaleyra registered a German branch of Kaleyra S.p.A. with the German Chamber Tax Authority of Commerce. Kaleyra established its branch in Germany to expand Kaleyra’s footprint in Central Europe and the Nordic countries and allow it to leverage Kaleyra’s trusted business solutions for customers in additional jurisdictions. Kaleyra’s subsidiary, Campaign Registry Inc., a systems initiative to reduce spam by collecting robotically driven campaign information and processing and sharing that information with mobile operators and the messaging ecosystem, began its soft launch during the second quarter of fiscal year 2020, ending up with its first revenue contracts in the second half of fiscal year 2020. On February 18, 2021, Kaleyra entered into an agreement and plan of merger (the “Merger Agreement”) with Vivial, Inc. (“Vivial”) for the acquisition of the business known as mGage (“mGage”), a leading global mobile messaging provider in the United States (the transaction contemplated by the Merger Agreement, the “Merger”). On June 1, 2021, Kaleyra completed its acquisition of mGage for a total purchase price of $218.0 million. The Merger consideration consisted of both cash consideration and common stock consideration. On August 30, 2021, the Company prepared and delivered to the Stockholder Representative a written statement (the “Post-Closing Statement”) setting forth the calculation of closing cash and closing net working capital which ultimately resulted in the final Merger consideration to be equal to $217.0 million pursuant to the terms of the Merger Agreement. The cash consideration amounted to $199.2 million of which $198.6 million was paid on June 1, 2021 and the remaining amount was settled during the period ended September 30, 2021, including a working capital adjustment of $997,000. The common stock consideration was paid with the issuance to Vivial’s former equity holders of a total of 1,600,000 shares of Kaleyra common stock at the $11.77 per share closing price of Kaleyra common stock on the date of issuance, equal to $18.8 million in value. In support of the consummation of the Merger, on February 18, 2021, Kaleyra entered into subscription agreements (the “PIPE Subscription Agreements”) with certain institutional investors (the “PIPE Investors”), pursuant to which, among other things, Kaleyra agreed to issue and sell, in private placements to close immediately prior to the closing of the Merger, an aggregate of 8,400,000 shares of Kaleyra common stock to the PIPE Investors at $12.50 per share. Kaleyra also entered into convertible note subscription agreements (the “Convertible Note Subscription Agreements”) with certain institutional investors (the “Convertible Note Investors”), pursuant to which Kaleyra agreed to issue and sell, in private placements to close immediately prior to the closing of the Merger, $200 million aggregate principal amount of unsecured convertible notes (the “Merger Convertible Notes”). On July 1, 2021, Kaleyra completed a company reorganization of the acquired business of mGage through the initial dissolution of the Delaware single member LLCs of Vivial Holdings, LLC, Vivial Networks, LLC, and the following merger of mGage, LLC into the surviving holding company, Vivial Inc., which subsequently changed its name into Kaleyra US Inc., as a result of the reorganization. As a result of the M erger, Kaleyra US Inc. became the holding company and one hundred percent ( 100% ) owner of mGage Europe Ltd. (UK) and mGage SA de SV (Mexico). On July 8, 2021, Kaleyra completed the acquisition of Bandyer Srl (“Bandyer”) for cash consideration of $15.4 million. Bandyer offers cloud-based audio/video communications services via Web Real Time Communication (“WebRTC”) technology to financial institutions, retail companies, utilities, industries, insurance companies, human resources, and digital healthcare organizations. Bandyer provides customers with programmable audio/video APIs and Software Development Kits (“SDKs”) based on WebRTC technology for a variety of uses, including Augmented Reality (“AR”) applications for smart glasses. Effective August 31, 2021, the common stock of the Company ceased trading on the NYSE American and commenced trading on the NYSE under the ticker symbol “KLR”. Kaleyra’s warrants continue to trade on the NYSE American under the symbol “KLR WS”. On October 11, 2021, Kaleyra Africa Ltd, a wholly owned subsidiary of Kaleyra Inc., was incorporated under the laws of South Africa with the registered office in Waterfall City, Gauteng. This newly established subsidiary is part of Kaleyra's broader strategic plan of expanding into emerging markets whereby South Africa will serve as Kaleyra's hub to enter the entire African market. On November 15, 2021, pursuant to the provisions of the Merger Agreement, Kaleyra Dominicana, S.R.L., the ninety-nine percent (99%) direct owner of Kaleyra US Inc. and one percent (1%) direct owner of Kaleyra Inc., was incorporated under the laws of the Dominican Republic with the registered office in Santo Domingo. This newly established subsidiary is aimed to provide the Kaleyra group with back-office technology support and engage in product development and innovation. On January 13, 2022, Kaleyra completed a company reorganization of the acquired business of Bandyer by means of the merger of the Italian legal entity of Bandyer into the holding company, Kaleyra S.p.A.. As a result of the merger, Bandyer ceased to exist as a separate legal entity and all its assets and liabilities have been incorporated under Kaleyra S.p.A. effective January 13, 2022.

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2022
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation The accompanying condensed consolidated financial statements of the Company are unaudited, and have been prepared in accordance with accounting principles generally accepted in the United States of America (“US GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, this interim quarterly financial report does not include all disclosures required by US GAAP. In the opinion of the Company’s management, the unaudited condensed consolidated financial statements reflect all adjustments, consisting only of normal recurring adjustments, considered necessary to present fairly the financial position, results of operations and cash flows of the Company and its consolidated subsidiaries for all periods presented. The results of operations for the three months ended March 31, 2022 are not necessarily indicative of the results to be expected in the future or for the full fiscal year. It is recommended that these condensed consolidated financial statements be read in conjunction with the Company’s consolidated financial statements and the notes thereto included in its 2021 Annual Report on Form 10-K filed with the Securities and Exchange Commission (the “SEC”) on March 8, 2022. These condensed consolidated financial statements have been prepared in conformity with US GAAP applicable for an “emerging growth company” as defined in the Jumpstart Our Business Startups Act (“JOBS Act”). The JOBS Act provides, in part, that an emerging growth company can take advantage of an extended transition period for complying with new or revised accounting standards. In particular, an emerging growth company can delay the adoption of certain accounting standards until those standards would apply to private companies. For the purpose of these condensed consolidated financial statements, the Company availed itself of an extended transition period for complying with new or revised accounting standards and, as a result, did not adopt new or revised accounting standards on the relevant dates on which adoption of such standards is required for public companies. Liquidity The Company evaluated its ability to continue as a going concern. The Company has negative cash flows from operating activities through March 31, 2022. The condensed consolidated balance sheet as of March 31, 2022 includes total current assets of $183.9 million and total current liabilities of $109.0 million, resulting in net current assets of $74.9 million. On February 18, 2021, and for the purposes of raising the cash portion of the consideration for the Merger, the Company entered into the PIPE Subscription Agreements with the PIPE Investors and the Convertible Note Subscription Agreements with the Convertible Note Investors. Pursuant to these agreements, and prior to the closing of the Merger on June 1, 2021, the Company issued and sold in private placements an aggregate of $105 million or 8,400,000 shares of the Company’s common stock to the PIPE Investors at $12.50 per share, and $200 million aggregate principal amount of unsecured Merger Convertible Notes. Considering the effects of the financings described above and the typical financial cycle of the Company, the Company’s management believes that the Company’s cash and availability of borrowings will be sufficient to support its planned operations for at least the next 12 months from the date these condensed consolidated financial statements were issued. Business seasonality Historically, the Company has experienced clear seasonality in its revenue generation, with slower traction in the first calendar quarter, and increasing revenues as the year progresses. The Company typically experiences higher revenues in messaging and notification services during the fourth calendar quarter. This patterned revenue generation behavior takes place due to the Company’s customers sending more messages to their end-user customers who are engaged in consumer transactions at the end of the calendar year, resulting in an increase in notifications of electronic payments, credit card transactions and e-commerce orders. Principles of Consolidation The condensed consolidated financial statements include the Company and its wholly owned subsidiaries, including Kaleyra S.p.A., Solutions Infini, Buc Mobile, mGage Europe Limited, Campaign Registry and Kaleyra US Inc., which represent its major operations. All significant intercompany balances and transactions have been eliminated in consolidation. Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. These estimates are used for, but not limited to, revenue recognition; allowance for doubtful accounts; valuation of the Company’s stock-based awards; recoverability of goodwill, long-lived and intangible assets; capitalization and useful life of the Company’s capitalized internal-use software development costs; fair value of acquired intangible assets and goodwill; accruals, including tax related provision and valuation allowance on deferred taxes. Estimates are based on historical experience and on various assumptions that the Company believes are reasonable under current circumstances. However, future events are subject to change and best estimates and judgments may require further adjustments; therefore, actual results could differ materially from those estimates. Management periodically evaluates such estimates and they are adjusted prospectively based upon such periodic evaluation. Actual results and outcomes may differ from management’s estimates and assumptions due to risks and uncertainties, including uncertainty in the current economic environment due to the continuing impact of the novel strain of the coronavirus (“COVID-19”) and the armed conflict between Russia and Ukraine. Concentration of Credit Risk Financial instruments that potentially expose the Company to a concentration of credit risk consist primarily of cash and cash equivalents, restricted cash, short-term investments and trade receivables. The Company maintains its cash and cash equivalents, restricted cash and short-term investments with financial institutions that management believes are financially sound. The Company sells its services to a wide variety of customers. If the financial condition or results of operations of any significant customers deteriorate substantially, the Company’s operating results could be adversely affected. To reduce credit risk, management performs ongoing credit evaluations of the financial condition of significant customers. The Company maintains reserves for estimated credit losses on customer accounts when considered necessary. Actual credit losses may differ from the Company’s estimates. In both of the three months ended March 31, 2022 and 2021, there was no customer that individually accounted for more than 10% of the Company’s consolidated total revenue. As of March 31, 2022 and December 31, 2021, one individual customer in both periods accounted for more than 10% of the Company’s consolidated total trade receivables. Trade receivables accounted for by that one customer amounted to $10.2 million as of March 31, 2022 and another customer accounted for $9.6 million in trade receivables as of December 31, 2021. Warrant Liability The Company accounts for warrants for shares of the Company’s common stock that are not indexed to its own stock as liabilities at fair value on the condensed consolidated balance sheets. The warrants are subject to remeasurement at each balance sheet date and any change in fair value is recognized in “Financial expense, net” on the condensed consolidated statements of operations. The liability is included in the condensed consolidated balance sheet line item “Other long-term liabilities”. The Company will continue to adjust the liability for changes in fair value until the earlier of the exercise or expiration of the common stock warrants. At that time, the portion of the warrant liability related to the common stock warrants will be reclassified as additional paid-in capital. Recent Accounting Pronouncements In May 2021, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ for Certain Modifications or Exchanges of Freestanding Equity-Classified Written Call Options” which clarifies and reduces diversity in an issuer’s accounting for modifications or exchanges of freestanding equity-classified written call options (for example, warrants) that remain equity classified after modification or exchange. An entity should measure the effect of a modification or an exchange of a freestanding equity-classified written call option that remains equity classified after modification or exchange as follows: i) for a modification or an exchange that is a part of or directly related to a modification or an exchange of an existing debt instrument or line-of-credit or revolving-debt arrangements (hereinafter, referred to as a “debt” or “debt instrument”), as the difference between the fair value of the modified or exchanged written call option and the fair value of that written call option immediately before it is modified or exchanged; ii) for all other modifications or exchanges, as the excess, if any, of the fair value of the modified or exchanged written call option over the fair value of that written call option immediately before it is modified or exchanged. The amendments in this u pdate are effective for all entities for fiscal years beginning after December 15, 2021, including interim periods within those fiscal years. An entity should apply the amendments prospectively to modifications or exchanges occurring on or after the effective date of the amendments. The Company adopted the amendments, and the adoption did not have a material impact on its condensed consolidated financial statements . In January 2021, the FASB issued ASU 2021-01 “Reference Rate Reform (Topic 848)”, which clarifies that certain optional expedients and exceptions in Topic 848 for contract modifications and hedge accounting apply to derivatives that are affected by the discounting transition. Specifically, certain provisions in Topic 848, if elected by an entity, apply to derivative instruments that use an interest rate for margining, discounting, or contract price alignment that is modified as a result of reference rate reform. Amendments in this update to the expedients and exceptions in Topic 848 capture the incremental consequences of the scope clarification and tailor the existing guidance to derivative instruments affected by the discounting transition. The amendments in this update apply to all entities that elect to apply the optional guidance in Topic 848. The amendments do not apply to contract modifications made after December 31, 2022 or new hedging relationships entered into after December 31, 2022. For existing hedging relationships evaluated for effectiveness in periods after December 31, 2022, an exception is made for those hedging relationships that apply certain optional expedients in which the accounting effects are recorded through the end of the hedging relationship (including periods after December 31, 2022). The Company is currently evaluating the impact of the optional expedients and exceptions of this standard on its condensed consolidated financial statements. 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” which is aimed to address issues identified as a result of the complexity associated with applying generally accepted accounting principles for certain financial instruments with characteristics of liabilities and equity. In addressing the complexity, the FASB focused on amending the guidance on convertible instruments and the guidance on the derivatives scope exception for contracts in an entity’s own equity. For convertible instruments, the Board decided to reduce the number of accounting models for convertible debt instruments and convertible preferred stock. Limiting the accounting models results in fewer embedded conversion features being separately recognized from the host contract as compared with current GAAP. Convertible instruments that continue to be subject to separation models are (1) those with embedded conversion features that are not clearly and closely related to the host contract, that meet the definition of a derivative, and that do not qualify for a scope exception from derivative accounting and (2) convertible debt instruments issued with substantial premiums for which the premiums are recorded as paid-in capital. The Company adopted the amendments in this update as of the beginning of its annual fiscal year 2021, which resulted in the embedded conversion features of the Merger Convertible Note not being separately recognized from the host contract pursuant to their scope exception from derivative accounting under ASC 815-10-15-74(a). Interest Make-Whole Payment feature met the definition of a derivative but did not fall within the above scope exception, nonetheless its value was de minimis and as such no amount was recorded in the consolidated financial statements at the time of the issuance of the Merger Convertible Notes nor at any subsequent reporting date. In June 2020, the FASB issued ASU 2020-05 “Revenue from Contracts with Customers (Topic 606) and Leases (Topic 842): Effective dates for certain entities” (“ASU 2020-05”), which provides a limited one year deferral of the effective dates of the following updates (including amendments issued after the issuance of the original update) to provide immediate, near-term relief for certain entities for whom these updates are either currently effective or imminently effective: i) ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) (“Revenue”); ii) ASU No. 2016-02, Leases (Topic 842) (“Leases”). In November 2019, the FASB issued ASU 2019-10 “Financial Instruments - Credit Losses (Topic 326), Derivatives and Hedging (Topic 815), and Leases (Topic 842): Effective Dates” (“ASU 2019-10”). The amendments in this ASU amended certain effective dates for the above ASU 2016-02, Leases (including amendments issued after the issuance of the original ASU). The effective dates for Leases after applying ASU 2019-10 were as follows: public business entities, excluding emerging growth companies and smaller reporting companies, for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. All other entities for fiscal years beginning after December 15, 2020, and interim periods within fiscal years beginning after December 15, 2021. Early application continues to be allowed. In ASU 2019-10, the FASB noted that challenges associated with transition to a major update are often magnified for private companies and smaller public companies. Those challenges have been significantly amplified by the current business and capital market disruptions caused by the COVID-19 pandemic. For this reason, the FASB issued the amendments in ASU 2020-05 by deferring the effective date for one additional year for entities in the “all other” category that have not yet issued their financial statements (or made financial statements available for issuance) reflecting the adoption of Leases. Therefore, under the amendments, Leases (Topic 842) is effective for entities within the “all other” category for fiscal years beginning after December 15, 2021, and interim periods within fiscal years beginning after December 15, 2022. Early application continues to be permitted, which means that an entity may choose to implement Leases before those deferred effective dates. The Company expects the adoption to have a material impact to the consolidated balance sheets for the recording of the "right-to-use" asset and corresponding lease liability. The Company plans to adopt the ASU in its fiscal year ending December 31, 2022, by utilizing the modified retrospective transition approach, which will result in an estimated current period adjustment on January 1, 2022 related to the recognition of a right-of-use asset and corresponding lease liability between $ 3.0 million and $ 4.0 million on its condensed consolidated balance sheet. In February 2020, the FASB issued ASU 2020-02 “Financial Instruments—Credit Losses (Topic 326) and Leases (Topic 842), Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 119 and Update to SEC Section on Effective Date Related to Accounting Standards Update No. 2016-02, Leases (Topic 842). This ASU applies to all registrants that are creditors in loan transactions that, individually or in the aggregate, have a material effect on the registrant’s financial condition. This ASU guidance is applicable upon a registrant’s adoption of Accounting Standards Codification (“ASC”) Topic 326. On November 15, 2019, the FASB delayed the effective date of ASC Topic 326 (ASU 2019-10), as noted below. In November 2019, the FASB issued ASU 2019-10 “Financial Instruments—Credit Losses (Topic 326), Derivatives and Hedging (Topic 815), and Leases (Topic 842): Effective Dates”. The amendments in ASU 2019-10 amend certain effective dates for the following major ASUs (including amendments issued after the issuance of the original ASU): a) b) A c) ASU 2016-02, Leases (Topic 842). The effective dates for Leases after applying ASU 2019-10 are as follows: public business entities, excluding emerging growth companies and smaller reporting companies, for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. All other entities for fiscal years beginning after December 15, 2020, and interim periods within fiscal years beginning after December 15, 2021. As noted above, the effective date of this ASU has now been delayed for one additional year by the issuance of ASU 2020-05. In August 2018, the FASB issued ASU 2018-15, “Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Contract”. This standard aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The standard is effective for public business entities for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. For all other entities, the amendments in this ASU are effective for annual reporting periods beginning after December 15, 2020, and interim periods within annual periods beginning after December 15, 2021. The Company adopted the amendments in this update as of the beginning of its annual fiscal year 2021, and the adoption did not have a material impact on its condensed consolidated financial statements. In August 2018, the FASB issued ASU 2018-14, “Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20)”, which modifies the disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans. The amendments are effective for fiscal years ending after December 15, 2020 for public business entities and for fiscal years ending after December 15, 2021 for all other entities. The Company is currently evaluating the impact of this standard on its condensed consolidated financial statements. In January 2017, the FASB issued ASU 2017-04, “Simplifying the Test for Goodwill Impairment”, which removes the second step of the goodwill impairment test that requires a hypothetical purchase price allocation. A goodwill impairment will now be the amount by which a reporting unit's carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. The Company adopted the amendments in this update as of the beginning of its annual fiscal year 2021, and the adoption did not have a material impact on its condensed consolidated financial statements. In June 2016, the FASB issued ASU 2016-13, “Financial Instruments—Credit Losses: Measurement of Credit Losses on Financial Instruments”, which changes the impairment model for most financial assets. The new model uses a forward-looking expected loss method, which will generally result in earlier recognition of allowances for losses. In November 2018, the FASB issued ASU 2018-19, “Codification Improvements to Topic 326, Financial Instruments— Credit Losses”, which clarifies that receivables arising from operating leases are not within the scope of Topic 326, Financial Instruments—Credit Losses. Instead, impairment of receivables arising from operating leases should be accounted for in accordance with Topic 842, Leases. These ASUs are effective for public entities for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years, and for other entities for fiscal years beginning after December 15, 2020 and interim periods within fiscal years beginning after December 15, 2021. Earlier application is permitted. As noted above, the effective date of this ASU was delayed for two year s by the issuance of ASU 2019-10. The Company is currently evaluating the impact of this standard on its condensed consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, “Leases”, which was further clarified by ASU 2018-10, “Codification Improvements to Topic 842, Leases”, and ASU 2018-11, “Leases—Targeted Improvements”, both issued in July 2018. ASU 2016-02 affects all entities that lease assets and will require lessees to recognize a lease liability and a right-of-use asset for all leases (except for short-term leases that have a duration of less than one year) as of the date on which the lessor makes the underlying asset available to the lessee. For lessors, accounting for leases is substantially the same as in prior periods. ASU 2018-10 clarifies or corrects unintended application of guidance related to ASU 2016-02. The amendment affects narrow aspects of ASU 2016-02 related to the implicit rate in the lease, impairment of the net investment in the lease, lessee reassessment of lease classification, lessor reassessment of lease term and purchase options, variable payments that depend on an index or rate and certain transition adjustments. ASU 2018-11 adds a transition option for all entities and a practical expedient only for lessors. The transition option allows entities to not apply the new lease standard in the comparative periods they present in their financial statements in the year of adoption. Under the transition option, entities can opt to continue to apply the legacy guidance in ASC 840, “Leases”, including its disclosure requirements, in the comparative prior periods presented in the year they adopt the new lease standard. Entities that elect this transition option will still be required to adopt the new leases standard using the modified retrospective transition method required by the standard, but they will recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption rather than in the earliest period presented. The new standards are effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years for a public business entity. For all other entities, the amendments in this ASU are effective for fiscal years beginning after December 15, 2019, and interim periods within fiscal years beginning after December 15, 2020. Earlier application is permitted. As noted above, the effective date of this ASU was delayed for two years by the issuance of ASU 2020-05.

Business Combinations

Business Combinations	3 Months Ended
	Mar. 31, 2022
Business Combinations [Abstract]
Business Combinations	3. BUSINESS COMBINATIONS Acquisition of mGage On June 1, 2021, the Company completed its Merger with Vivial and the resulting acquisition of the business owned by Vivial known as mGage, a leading global mobile messaging provider. The acquisition of mGage provided an opportunity for the Company to expand its network operator connections and become one of only four companies providing direct connectivity to all tier-1 US carriers. Pursuant to the Merger Agreement dated as of February 18, 2021, by and among the Company, Merger Sub, Vivial and GSO Special Situations Master Fund LP, solely in its capacity as the Stockholder Representative, Vivial was merged with and into Merger Sub, with Vivial surviving as a wholly-owned subsidiary of the Company. The name of Vivial was changed to mGage Group Holdings, Inc. (“mGage Group Holdings”) as a result of the Merger. Subsequently, on July 1, 2021, mGage Group Holdings changed its name to Kaleyra US Inc. The Merger consideration consisted of cash consideration and common stock consideration and was subject to post-closing price adjustments as set forth in the Merger Agreement. On August 30, 2021, the Company prepared and delivered to the Stockholder Representative a written statement (the “Post-Closing Statement”) setting forth the calculation of closing cash and closing net working capital which ultimately resulted in the final Merger consideration to be equal to $217.0 million pursuant to the terms of the Merger Agreement. The original cash consideration amounted to $199.2 million of which $198.6 million was paid on June 1, 2021 and the remaining amount was settled through the period ended September 30, 2021, including a working capital adjustment of $997,000. The common stock consideration was paid with the issuance to Vivial’s former equity holders of a total of 1,600,000 shares of Kaleyra common stock. The resulting value of the common stock consideration, which was based upon the $11.77 per share closing price of Kaleyra common stock as of June 1, 2021, was equal to $18.8 million and has been recognized as part of the consideration transferred. The Merger was financed through (i) the proceeds from the issuance and sale by the Company, of an aggregate of 8,400,000 shares of Kaleyra common stock to PIPE Investors at $12.50 per share, pursuant to the subscription agreements dated February 18, 2021; and (ii) the proceeds from the issuance in a private placement, of $200 million aggregate principal amount of Merger Convertible Notes to certain institutional investors. See Note 10 – Notes Payable – for additional details on the Merger Convertible Notes. The Merger was accounted for as a business combination and the total fair value of the consideration transferred of $217 million was allocated on a preliminary basis to the net tangible and intangible assets and liabilities based on their estimated fair values as of the acquisition date and the excess was recorded as goodwill. The Company will continue to evaluate certain assets, liabilities and tax estimates that are subject to change within the measurement period (up to one year from the acquisition date). During the three months ended September 30, 2021, Kaleyra redetermined the estimated fair value of certain identified finite-lived intangible assets, net of deferred tax liabilities and the resulting residual goodwill. The measurement period adjustment was recognized through a decrease of $8.9 million in the current period condensed consolidated balance sheet line item “Intangible assets, net” mostly relating to the acquired developed technology, a net decrease of $1.9 million in the current period condensed consolidated balance sheet line item “Deferred tax liability” and an increase of $5.9 million in the current period condensed consolidated balance sheet line item “Goodwill”. The measurement period adjustment also included a working capital adjustment of $997,000. The acquired entity’s results of operations have been included in the condensed consolidated financial statements of the Company from the date of acquisition. The following table summarizes the fair value amount recognized for the assets acquired and liabilities assumed as of the acquisition date (in thousands): Customer relationships (1) $ 76,256 Developed technology (1) 30,033 Trade names (1) 13,060 Deferred tax assets on loss carryforward 25,011 Goodwill (2) 86,321 Accounts receivable and other current assets 29,996 Property and equipment 8,450 Cash and cash equivalents 2,856 Total assets acquired 271,983 Deferred tax liabilities 32,284 Accounts payable and other current liabilities 22,665 Total liabilities assumed 54,949 Net assets acquired $ 217,034 (1) Identified finite-lived intangible assets. The estimated fair value of the intangible assets acquired was determined by the Company, which considered or relied in part upon a valuation report of a third-party expert. The Company used income approaches to estimate the fair values of the identifiable intangible assets. The estimated useful life is 7 to 9 years for customer relationships, 6 years for developed technology and 8 years for trade names. (2) Goodwill is the excess of fair value of the consideration transferred over the fair value of identifiable tangible and intangible assets acquired and liabilities assumed and represents expected synergies of the combination of the acquired business. Goodwill is not deductible for income tax purposes. In 2021, the Company incurred costs related to this acquisition of $5.5 million that were expensed in general and administrative expenses in the accompanying condensed consolidated statements of operations. The contribution of mGage to the consolidated revenue and consolidated net loss for the three months ended March 31, 2022 was $32.1 million, and net loss of $990,000. Acquisition of Bandyer On July 8, 2021, Kaleyra completed the acquisition of the entire share capital of Bandyer, a company based in Italy that offers cloud based audio/video communications services to Italian financial institutions, retail companies, utilities, insurance, human resources and digital healthcare organizations (the “Bandyer Acquisition”). Bandyer’s services are extremely suitable for different industries and completely compatible with any device and expand and complete Kaleyra’s already wide offering of communication channels. The consideration for the Bandyer Acquisition consisted of cash consideration of $15.4 million (€13 million) of which $13.3 million (€11.5 million) was paid at the acquisition date and the remaining amount was retained in an escrow account. The acquisition of Bandyer was financed through the available financial resources of Kaleyra. During the three months ended March 31, 2022, and pursuant to the Bandyer purchase agreement, the above purchase consideration was decreased by $58,000, which is an amount equal to the sum of the acquisition date net debt and the portion of the acquisition date net working capital that was collected by December 31, 2021 (the “Price Adjustment”). The Price Adjustment favorable to Kaleyra was considered in the calculation of the final goodwill balance as of March 31, 2022. The Bandyer Acquisition was accounted for as a business combination and the total fair value of the consideration transferred of $15.4 million was allocated to the net tangible and intangible assets and liabilities based on their estimated fair values as of the acquisition date and the excess was recorded as goodwill. The acquired entity’s results of operations have been included in the consolidated financial statements of Kaleyra from the date of acquisition. During the three months ended March 31, 2022, Kaleyra adjusted the deferred tax liabilities arising from the acquired tangible and intangible assets and the resulting residual goodwill. The measurement period adjustment was recognized through an increase of $164,000 in the current period condensed consolidated balance sheet line item “Deferred tax liability” and a corresponding increase in the current period condensed consolidated balance sheet line item “Goodwill”. The measurement period adjustment also included the above Price Adjustment of $58,000. The following table summarizes the fair value amount recognized for the assets acquired and liabilities assumed as of the acquisition date (in thousands): Property and equipment, net $ 116 Developed technology (1) 7,999 Customer relationship (1) 1,798 Goodwill (2) 8,146 Cash and cash equivalents 349 Trade receivables and other current assets 671 Other non current assets 21 Total assets acquired 19,100 Deferred tax liabilities 2,616 Accounts payable and other current liabilities 986 Long term portion of employee benefit obligation 126 Current portion of bank and other borrowings 39 Total liabilities assumed 3,767 Net assets acquired $ 15,333 (1) Identified finite-lived intangible assets. The estimated fair value of the intangible assets acquired was determined by Kaleyra, which considered or relied in part upon a valuation report of a third-party expert. The Company used income approaches to estimate the fair values of the identifiable intangible assets. The estimated useful life is 8 years for customer relationships and 15 years for developed technology. (2) Goodwill is the excess of fair value of the consideration transferred over the fair value of identifiable tangible and intangible assets acquired and liabilities assumed and represents expected synergies of the combination of the acquired business. Goodwill is not deductible for income tax purposes. On January 13, 2022, Kaleyra completed a company reorganization of the acquired business of Bandyer by means of the merger of the Italian legal entity of Bandyer into the holding company, Kaleyra S.p.A.. As a result of the merger, Bandyer ceased to exist as a separate legal entity and all its assets and liabilities have been incorporated under Kaleyra S.p.A. effective January 13, 2022. Unaudited supplemental pro-forma information The results of operations for the three months ended March 31, 2022 are included in the condensed consolidated financial statements. The following table presents unaudited supplemental pro-forma information for the three months ended March 31, 2021 as if the Merger had occurred on January 1, 2021. The main adjustments reflected in the unaudited pro-forma financial information for the three months ended March 31, 2021 are as follows: (i) the amortization of intangible assets arising from the purchase price allocation amounting to $2.8 million for three months ended March 31, 2021, net of the related tax effect of $1.0 million; (ii) the financial expenses incurred in connection with the Merger Convertible Notes amounting to $3.5 million for three months ended March 31, 2021. No pro forma tax benefit has been reflected in connection with the pro forma adjustment to financial income (expense), net as Kaleyra is in a net loss tax position and a valuation allowance would be established for the amount of any deferred tax assets. Transaction costs incurred in connection with the transaction were not eliminated. The pro-forma financial information is not necessarily indicative of the results of operation that would have occurred had the transaction been affected on the assumed dates. Three Months Ended March 31, (in thousands, except share and per share amounts) 2022 2021 Revenue $ 80,481 $ 72,340 Net loss (13,172 ) (13,980 ) Net loss per common share, basic and diluted $ (0.31 ) $ (0.35 ) Weighted-average shares used in computing net loss per common share, basic and diluted 42,247,518 40,364,943 The contribution of mGage to the consolidated and pro-forma consolidated revenue was $32.1 million and $31.9 million for the three months ended March 31, 2022 and 2021, respectively. The contribution of mGage to the consolidated and pro-forma consolidated net loss was a loss of $990,000 and an income of $3.6 million for the three months ended March 31, 2022 and 2021, respectively.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2022
Fair Value Disclosures [Abstract]
Fair Value Measurements	4. FAIR VALUE MEASUREMENTS The following tables provide the assets and liabilities measured at fair value on a recurring basis as of March 31 , 2022 and December 31, 2021 (in thousands): Fair Value Hierarchy as of March 31, 2022 Aggregate Level 1 Level 2 Level 3 Fair Value Assets: Mutual funds (1) $ 599 $ — $ — $ 599 Certificates of deposit (2) — 6,695 — 6,695 Total Assets $ 599 $ 6,695 $ — $ 7,294 Liabilities: Interest Rate Swap (3) $ — $ 12 $ — $ 12 Warrant liability (4) — 355 — 355 Total Liabilities $ — $ 367 $ — $ 367 (1) Included in the condensed consolidated balance sheet line item “Short-term investments”. (2) Included in the condensed consolidated balance sheet line item “Short-term investments”, with maturity terms between 4 and 12 months held in India. (3) Included in the condensed consolidated balance sheet line item “Other long-term liabilities”. (4) Included in the condensed consolidated balance sheet line item “Other long-term liabilities”. See Note 18 – Warrants – for further details. Fair Value Hierarchy as of December 31, 2021 Aggregate Level 1 Level 2 Level 3 Fair Value Assets: Mutual funds (1) $ 602 $ — $ — $ 602 Certificates of deposit (2) — 5,634 — 5,634 Total Assets $ 602 $ 5,634 $ — $ 6,236 Liabilities Interest Rate Swap (3) $ — $ 35 $ — $ 35 Warrant liability (4) — 889 — 889 Total Liabilities $ — $ 924 $ — $ 924 (1) Included in the condensed consolidated balance sheet line item “Short-term investments”. (2) Included in the condensed consolidated balance sheet line item “Short-term investments”, with maturity terms between 4 and 12 months held in India. (3) Included in the condensed consolidated balance sheet line item “Other long-term liabilities”. (4) Included in the condensed consolidated balance sheet line item “Other long-term liabilities”. See Note 18 – Warrants – for further details. The values of short-term investments as of March 31, 2022 and as of December 31, 2021 were as follows (in thousands): As of March 31, 2022 As of December 31, 2021 Cost Unrealized Gains Unrealized Losses Fair Value Cost Unrealized Gains Unrealized Losses Fair Value Mutual funds $ 594 $ 5 $ — $ 599 $ 572 $ 30 $ — $ 602 Certificates of deposit 6,695 — — 6,695 5,634 — — 5,634 There were no transfers into or out of Level 2 or Level 3 for the three months ended March 31, 2022 and the year ended December 31, 2021.

Derivative Financial Instrument

Derivative Financial Instrument	3 Months Ended
	Mar. 31, 2022
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	5. DERIVATIVE FINANCIAL INSTRUMENTS The gross notional amount of interest rate swap derivative contracts not designated as hedging instruments, outstanding as of March 31 The amount and location of the gains (losses) in the condensed consolidated statements of operations related to derivative contracts is as follows (in thousands): Three Months Ended March 31, Derivatives Not Designed As Hedging Instruments Line Items 2022 2021 Interest Rate Swap Financial income (expense), net $ 22 $ 13 The following table presents the fair value and the location of derivative contracts reported in the condensed consolidated balance sheets (in thousands): As of March 31, As of December 31, Derivatives Not Designed As Hedging Instruments Line Items 2022 2021 Interest Rate Swap Other long-term liabilities $ 12 $ 35

Goodwill and Intangible Assets,

Goodwill and Intangible Assets, Net	3 Months Ended
	Mar. 31, 2022
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets, Net	6. GOODWILL AND INTANGIBLE ASSETS, NET Goodwill Goodwill as of March 31, 2022 and December 31, 2021 was as follows (in thousands): Balance as of December 31, 2021 $ 110,465 Purchase price adjustment in the period 96 Effect of exchange rate (473 ) Balance as of March 31, 2022 $ 110,088 Intangible assets, net Intangible assets consisted of the following (in thousands): As of March 31, 2022 As of December 31, 2021 Gross Accumulated Amortization Net Gross Accumulated Amortization Net Amortizable Intangible Assets: Developed technology $ 40,190 $ 6,959 $ 33,231 $ 40,416 $ 5,393 $ 35,023 Customer relationships 86,555 10,956 75,599 86,792 8,597 78,195 Trade names 13,038 1,358 11,680 13,060 952 12,108 Patent 130 65 65 131 61 70 Total amortizable intangible assets $ 139,913 $ 19,338 $ 120,575 $ 140,399 $ 15,003 $ 125,396 Amortization expense was $4.4 million and $403,000 for the three months ended March 31, 2022 and 2021, respectively. Total estimated future amortization expense as of is as follows (in thousands): As of March 31, 2022 2022 (remaining nine months) $ 12,814 2023 16,717 2024 16,615 2025 16,542 2026 16,468 2027 and thereafter 41,419 Total $ 120,575

Other Assets

Other Assets	3 Months Ended
	Mar. 31, 2022
Other Assets [Abstract]
Other Assets	7. OTHER ASSETS Other current assets consisted of the following (in thousands): As of March 31, As of December 31, 2022 2021 Receivables from suppliers $ 512 $ 483 Credit for tax other than income tax 481 675 Income tax receivables 230 1,195 Other receivables 439 246 Total other current assets $ 1,662 $ 2,599 Other long-term assets consisted of the following (in thousands): As of March 31, As of December 31, 2022 2021 Non-current income tax credit (advances and tax reduced at sources) $ 960 $ 53 Miscellaneous 504 346 Total other long-term assets $ 1,464 $ 399

Bank and Other Borrowings

Bank and Other Borrowings	3 Months Ended
	Mar. 31, 2022
Bank And Other Borrowings [Abstract]
Bank and Other Borrowings	8. BANK AND OTHER BORROWINGS As of March 31, 2022 and December 31, 2021, the current portion of bank and other borrowings amounts to $15.3 million and $15.8 million, respectively. As of March 31, 2022, this item was comprised of $10.7 million of the current portion of bank and other borrowings and $4.6 million of credit line facilities. As of December 31, 2021, this item was comprised of $10.5 million of the current portion of bank and other borrowings and $5.3 million of credit line facilities. Credit line facilities As of March 31, 2022, the Company had credit line facilities denominated in Euro The credit lines denominated in Euro may be drawn upon at variable interest rates in the following range: 0.5% - 2.2%. The weighted average interest rate on those credit line facilities outstanding as of March 31, 2022 was 1.18%. Long-term bank and other borrowings Long-term bank and other borrowings consist of the following (in thousands): Interest Nominal Rate As of March 31, As of December 31, Interest Contractual Rate As of March 31, As of December 31, 2022 2021 Maturity as of March 31, 2022 2022 2021 UniCredit S.p.A. (Line A Tranche 1) $ 1,956 $ 2,330 July 2023 Euribor 3 months + 3.10% 2.80 % 2.80 % UniCredit S.p.A. (Line A Tranche 2) 97 113 November 2023 Euribor 3 months + 3.10% 2.80 % 2.80 % UniCredit S.p.A. (Line B) 2,061 2,337 May 2024 Euribor 3 months + 2.90% 2.60 % 2.60 % UniCredit S.p.A. (Line C) 1,546 1,833 August 2023 Euribor 3 months + 3.90% 3.44 % 3.33 % Intesa Sanpaolo S.p.A. (Line 1) 142 290 April 2022 Euribor 3 months + 2.30% 1.84 % 1.73 % Intesa Sanpaolo S.p.A. (Line 2) 2,544 2,872 April 2024 Euribor 3 months + 3.10% 2.64 % 2.53 % Intesa Sanpaolo S.p.A. (Line 3) 8,781 8,961 June 2026 Euribor 3 months + 2.15% 1.69 % 1.58 % Intesa Sanpaolo S.p.A. (Line 4) 5,519 5,927 July 2026 Euribor 3 months + 2.20% 1.74 % 1.63 % Monte dei Paschi di Siena S.p.A. (Line 1) 19 76 April 2022 0.95 % 0.95 % 0.95 % Monte dei Paschi di Siena S.p.A. (Line 2) 1,110 1,132 June 2023 1.50 % 1.50 % 1.50 % Banco BPM S.p.A. (Line 1) 486 593 June 2023 Euribor 3 months + 2.00% 2.00 % 2.00 % Banco BPM S.p.A. (Line 3) 4,483 5,014 September 2024 Euribor 3 months + 3.00% 2.54 % 2.43 % Simest 1 185 189 December 2023 0.50 % 0.50 % 0.50 % Simest 2 184 188 December 2023 0.50 % 0.50 % 0.50 % Simest 3 338 345 December 2023 0.50 % 0.50 % 0.50 % Simest 4 1,194 1,218 April 2027 0.50 % 0.50 % 0.50 % Total bank and other borrowings 30,645 33,418 Less: current portion 10,657 10,508 Total long-term portion $ 19,988 $ 22,910 All bank and other borrowings are unsecured borrowings of the Company. On February 23, 2021, the Company entered into an amendment to the existing unsecured loan agreement with Intesa Sanpaolo S.p.A. (the “Intesa Sanpaolo S.p.A. - Line 1”) and an amendment to the existing unsecured loan agreement with Intesa Sanpaolo S.p.A. (the “Intesa Sanpaolo S.p.A. - Line 2”). The amendments each provide that certain financial covenants be amended, in particular as they relate to the previously agreed net financial position/equity ratio and the net financial position/gross operating income ratio. Upon the approval of the audited statutory financial statements of Kaleyra S.p.A. for the year ended December 31, 2020 in June 2021, the calculated net financial position/gross operating income ratio failed to comply with the amended terms of the unsecured loan agreement with Intesa San Paolo S.p.A. As a result of such failure, Intesa San Paolo S.p.A. was entitled to raise the interest rate bearing on the existing financing agreements of Intesa San Paolo S.p.A. by fifty (50) bps. No principal amount was subject to early reimbursement under the amended terms of the loan agreement. On August 3, 2021, the Company was notified by Intesa San Paolo S.p.A. of their resolution to apply the incremental fifty (50) bps to the interest rate bearing on future payments of interest. On March 9, 2021 and March 10, 2021, respectively, Kaleyra S.p.A. received the approval by UniCredit to postpone repayment of the principal amounts due under the existing Line A Tranche (2), Line B and Line C of the long-term financing agreements with UniCredit S.p.A. for a period of six (6) months starting from March 1, 2021 until August 31, 2021, and under Line A Tranche (1) of the long-term financing agreement with UniCredit S.p.A. starting from February 1, 2021 until July 31, 2021. Consequently, the repayment schedule under all financing agreements mentioned above was extended for the period equal to that of the six (6) month suspension period. On April 15, 2021, Kaleyra S.p.A. and Banco Popolare di Milano S.p.A. entered into an agreement to postpone repayment of the principal amounts due under the existing Line 3 of the long-term unsecured financing agreement for a period of six (6) months starting from March 31, 2021 until September 30, 2021, without prejudice to Kaleyra S.p.A.’s obligations to continue to pay interest in relation to the principal amount at the original due dates . On April 15, 2021, the Company is non-refundable as long as the funds are the Framework. The principal amount of $3.1 million (€2.6 million at the April 15, 2021 exchange rate) applies to the Simest Financing. The Simest Financing bears a subsidized interest rate of 0.055% and a reference interest rate of 0.55%. The loan has a duration of six (6) years starting from the date of disbursement and is to be repaid in half-yearly installments starting after a two-year pre-amortization period. On September 15, 2021, the principal amount of $1.3 million (€1.1 million at the September 15, 2021 exchange rate) and $208,000 (€176,000 at the September 15, 2021 exchange rate) relating to the first installment of the Simest Financing and Co-financing, respectively, was disbursed to the Company pursuant to the terms of the loan agreement with Simest S.p.A. As of March 31, 2022, all of the available long-term facilities were drawn in full except for the Simest Financing as described above. Interest expense on bank and other borrowings was $156,000 and $190,000 for the three months ended March 31, 2022 and 2021, respectively. As of March 31, 2022, the Company is obliged to make payments as follows (in thousands): As of March 31, 2022 2022 (remaining nine months) $ 8,124 2023 10,127 2024 6,143 2025 3,747 2026 2,355 2027 and thereafter 149 Total $ 30,645

Debt for Forward Share Purchase

Debt for Forward Share Purchase Agreements	3 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Debt for Forward Share Purchase Agreements	9. DEBT FOR FORWARD SHARE PURCHASE AGREEMENTS As of March 31, 2022, the Company’s debt for forward share purchase agreements amounted to zero. Yakira Capital Management (“Yakira”) During the period from January 25, 2021 through March 2, 2021, Yakira provided notice to the Company that it sold all but 219 of the 43,930 shares that it held on December 31, 2020 in the open market at a price above $11.00 per share that were subject to the Third Yakira Amendment. On March 29, 2021, Yakira provided notice to the Company that it would not require the Company to purchase its remaining 219 shares by the term date of March 31, 2021. Following the sale of shares and the lapse of the Third Yakira Amendment mentioned above, the forward share purchase agreement with Yakira was terminated pursuant to its terms, and, as a result, the Company has no further obligations under the Yakira Purchase Agreement. Refer to the Company’s Annual Report on Form 10-K filed with the SEC on March 15, 2021 for further information. Nomura Global Financial Products On February 25, 2021, in accordance with the terms of the agreement (the “Confirmation”) with Nomura Global Financial Products, Inc. (“NGFP”), NGFP fully terminated the forward share purchase agreement (the “Forward Transaction”) and made a payment in the aggregate amount of $17.0 million to the Company. Following the cash settlement of the Forward Transaction mentioned above, the Forward Transaction with NGFP has terminated pursuant to the terms of the Confirmation, and, as a result, the Company has no further obligations.

Notes Payable

Notes Payable	3 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Notes Payable	10. NOTES PAYABLE Notes payable to the Sellers As consideration for the Business Combination, on November 25, 2019 the Company issued unsecured convertible promissory notes to each of Esse Effe and Maya in the amount of $6.0 million and $1.5 million, respectively, (the “Business Combination Convertible Notes”) and also issued other unsecured promissory notes to each of Esse Effe and Maya in the identical respective amounts (the “Non-convertible Notes”). The Non-convertible Notes held by Esse Effe and Maya were paid in full during fiscal year 2020 and no amount remains outstanding for such notes as of March 31, 2022. Business Combination Convertible Notes As of March 31, 2022, the outstanding balance on the Business Combination Convertible Notes held by Esse Effe and Maya amounted to zero. The Business Combination Convertible Notes are classified as “Notes payable due to related parties” in the accompanying condensed consolidated balance sheets. Any accrued interest payable is included in “Other current liabilities” in the accompanying condensed consolidated balance sheets. On the fifteen-month anniversary of the Business Combination Date or February 25, 2021, the fifty percent (50%) of the previously outstanding amount of Business Combination Convertible Notes held by Esse Effe and Maya was repaid, with a total of $3.0 million and $750,000 in principal and $176,000 and $44,000 in accrued interest being paid to Esse Effe and Maya, respectively, pursuant to the terms of the Business Combination Convertible Notes. Under the terms of the Business Combination Convertible Notes, the outstanding principal balance of the Business Combination Convertible Notes, plus all accrued and unpaid interest and fees due under these notes, became due and payable, upon the receipt by the Company of cash proceeds of an equity financing in an aggregate gross amount of $105.0 million or 8,400,000 shares of Kaleyra common stock at $12.50 per share issued to the PIPE Investors in the private placement equity financing event immediately prior to the closing of the Merger Agreement of June 1, 2021. The principal amount of $3.8 million plus accrued interest of $84,000 for the Business Combination Convertible Notes held by Esse Effe and Maya was paid in full on June 2, 2021. Following the repayment, the Business Combination Convertible Notes terminated pursuant to their terms and no further amounts were due. Notes payable - Other On April 16, 2020, the Company entered into a Settlement Agreement and Release (the “Settlement Agreement”) with its Business Combination financial advisory service firms, Cowen and Company, LLC (“Cowen”) and Chardan Capital Markets, LLC, (“Chardan” and, collectively, the “Service Firms”), pursuant to which it agreed to pay an affiliate of Cowen, Cowen Investments II LLC (“Cowen Investments”), and Chardan, in full satisfaction of all amounts owed to the Service Firms as of December 31, 2019, $5.4 million in the aggregate, as follows: (i) $2.7 million in the aggregate in common stock of the Company (the “Settlement Shares”) to be issued the business day prior to the filing of a resale registration statement for such Settlement Shares (the “Bank Resale Registration Statement”), (ii) convertible notes totaling $2.7 million in the aggregate with a maturity date three years after issuance and bearing interest at five percent (5%) per annum (but with lower interest rates if the notes are repaid earlier than one year or two years after issuance) and with interest paid in arrears to the payee on March 15, June 15, September 15 and December 15 of each year, with such convertible notes to also be issued the business day prior to the filing of the Resale Registration Statement and (iii) in the event that the Beneficial Ownership Limitation (as defined below) would otherwise be exceeded upon delivery of the Settlement Shares above, a warrant agreement also to be entered into with and issued to the Services Firms the business day prior to the filing of the Resale Registration Statement, whereby the amount of common stock of the Company by which the Beneficial Ownership Limitation would otherwise have been exceeded upon delivery of the Settlement Shares will be substituted for by warrants with an exercise price of $0.01 per share issued pursuant to a Warrant Agreement (the “Warrant Agreement”) and the common stock underlying the Warrant Agreement (the “Warrant Shares”). The Beneficial Ownership Limitation shall initially be 4.99% of the number of shares of the common stock outstanding of the Company immediately after giving effect to the issuance of these shares of common stock. The number of Settlement Shares was calculated using as the price per Settlement Share an amount equal to a fifteen percent (15%) discount to the ten-day (10-day) trailing dollar volume-weighted average price for the common stock of the Company on the NYSE American LLC stock exchange (the “VWAP”) on the business day immediately prior to the date on which the Company filed the Resale Registration Statement. In addition, the price per share for determining the number of shares of common stock of the Company to be issued upon the conversion of the convertible notes shall be a five percent (5%) premium to the ten-day (10-day) trailing VWAP as of the date immediately prior to the issuance date of the convertible notes, rounded down to the nearest whole number. On May 1, 2020, in connection with the Settlement Agreement, the Company issued: (i) an aggregate of 440,595 Settlement Shares to Cowen Investments and Chardan, consisting of 374,506 Settlement Shares issued to Cowen Investments, and 66,089 Settlement Shares issued to Chardan, which resulted in a $0.2 million loss on settlement on the issuance date of May 1, 2020; and (ii) convertible promissory notes in the aggregate principal amount of $ 2.7 million to Cowen Investments and Chardan, consisting of a convertible promissory note in the principal amount of $ 2.3 million issued to Cowen Investments (the “Cowen Note”) and a convertible promissory note in the principal amount of $ 405,000 issued to Chardan (the “Chardan Note”). The unpaid principal of the Cowen Note was convertible at the option of Cowen Investments into 303,171 shares of common stock of the Company, if there was no principal reduction, and the unpaid principal of the Chardan Note wa s convertible at the option of Chardan into 53,501 shares of common stock of the Company, if there was no principal reduction. As the Beneficial Ownership Limitation was not triggered by the issuance of the Settlement Shares, no Warrant Agreement was necessary and no warrants were issued. On February 4, 2021, Cowen Investments elected to convert the outstanding amount of the Cowen Note into 303,171 shares of common stock pursuant to the terms of the Cowen Note, and as a result the Company has no further obligations with respect to the Cowen Note. As of March 31, 2022, the outstanding amount of the Chardan Note was $405,000 and accrued interest was $39,000. This note payable is included in “Long-term portion of notes payable” and the accrued interest payable is included in “Other current liabilities” in the accompanying condensed consolidated balance sheets. Merger Convertible Notes On February 18, 2021, in support of the consummation of the Merger, Kaleyra entered into Convertible Note Subscription Agreements, each dated February 18, 2021, with the Convertible Note Investors. On June 1, 2021, the Company issued the Merger Convertible Notes with an aggregate principal amount of $200 million. The Company incurred $11.4 million of issuance costs as a result of the issuance of the Merger Convertible Notes. In connection with the issuance of the Merger Convertible Notes pursuant to the terms of the Convertible Note Subscription Agreements, the Company entered into an indenture (the “Indenture”) with Wilmington Trust, National Association, a national banking association, in its capacity as trustee thereunder (the “Indenture Trustee”), in respect of the $200 million of Merger Convertible Notes that were issued to the Convertible Note Investors. The Merger Convertible Notes bear interest at a rate of 6.125% per annum, payable semi-annually, in arrears on each June 1 and December 1 of each year, commencing on December 1, 2021, to holders of record at the close of business on the preceding May 15 and November 15, respectively. The Merger Convertible Notes are convertible into 11,851,852 shares of Kaleyra common stock at a conversion price of $16.875 per share of Kaleyra common stock in accordance with the terms of the Indenture, and mature five years after their issuance. The Company may, at its election, force conversion of the Merger Convertible Notes after (i) the first anniversary of the issuance of the Merger Convertible Notes, subject to a holder’s prior right to convert, if the last reported sale price of the Kaleyra common stock exceeds 150% of the conversion price for at least 20 trading days during the period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter and (ii) the second anniversary of the issuance of the Merger Convertible Notes, subject to a holder’s prior right to convert, if the last reported sale price of the Kaleyra common stock exceeds 130% of the conversion price for at least 20 trading days during the period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter. Following certain corporate events that occur prior to the maturity date or if the Company forces a mandatory conversion, the Company will, in certain circumstances, increase the conversion rate for a holder who elects to convert its Merger Convertible Notes in connection with such a corporate event or has its Merger Convertible Notes mandatorily converted, as the case may be. In addition, in the event that a holder of the Merger Convertible Notes elects to convert its Merger Convertible Notes prior to the third anniversary of the issuance of the Merger Convertible Notes, the Company will be obligated to pay an amount equal to twelve months of interest, or if on or after such third anniversary of the issuance of the Merger Convertible Notes, any remaining amounts that would be owed to, but excluding, the fourth anniversary of the issuance of the Merger Convertible Notes (the “Interest Make-Whole Payment”). The Interest Make-Whole Payment will be payable in cash or shares of Kaleyra common stock as set forth in the Indenture. Upon the issuance of the Merger Convertible Notes, management made the assessment whether the convertible instrument contained embedded conversion features for bifurcation and concluded that such embedded conversion features met the definition of a derivative but qualified for the scope exception under ASC 815-10-15-74(a) as they are indexed to the Company’s stock and qualify for classification within stockholders’ equity. Management determined that the Interest Make-Whole Payment met the definition of a derivative, but the value was de minimis and as such no amount was recorded at the time of the issuance of the Merger Convertible Notes. Management will continue to monitor the valuation of the Interest Make-Whole Payment provision and assess the need to record a liability in future periods. As of March 31, 2022, the outstanding amount of the Merger Convertible Notes was $190.2 million, net of issuance costs. During the three months ended March 31, 2022, contractual interest expense amounted to $3.0 million and amortization of the debt issuance costs amounted to $478,000. The liability is included in the condensed consolidated balance sheet line item “Long-term portion of notes payable” and the interest expense is included in “Financial expense, net” on the condensed consolidated statements of operations.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	3 Months Ended
	Mar. 31, 2022
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	11. ACCUMULATED OTHER COMPREHENSIVE LOSS The accumulated balances related to each component of accumulated other comprehensive loss are as follows (in thousands): Cumulative Foreign Currency Translation Adjustment Cumulative Net Unrealized Gain (Loss) on Marketable Securities, Net of Tax Accumulated Other Comprehensive Income (Loss) As of December 31, 2021 $ (2,046 ) $ 36 $ (2,010 ) Other comprehensive income (loss) (634 ) 5 (629 ) As of March 31, 2022 $ (2,680 ) $ 41 $ (2,639 ) Cumulative Foreign Currency Translation Adjustment Cumulative Net Unrealized Gain (Loss) on Marketable Securities, Net of Tax Accumulated Other Comprehensive Income (Loss) As of December 31, 2020 $ (2,836 ) $ 10 $ (2,826 ) Other comprehensive income (loss) 1,105 (4 ) 1,101 As of March 31, 2021 $ (1,731 ) $ 6 $ (1,725 )

Preference Shares Liabilities

Preference Shares Liabilities	3 Months Ended
	Mar. 31, 2022
Preference Shares Liabilities [Abstract]
Preference Shares Liabilities	12. PREFERENCE SHARES LIABILITIES Preference shares liabilities amounting to zero as of March 31, 2022 and December 31, 2021, represented the Company’s obligation to purchase in 2020 the preference shares from certain employees of Solutions Infini as a part of the Solutions Infini 2018 Purchase Agreement. During fiscal year 2020, following the agreement with the eligible employees of the preference shares to pay performance bonuses for a total amount of $3.5 million, as a replacement of the preference shares obligation, the performance bonus obligation payable to the eligible employees was paid in two different installments of $1.4 million on August 31, 2020, and of $883,000 on November 30, 2020. Following the full and final settlement agreements signed with the eligible employees on February 3, 2021, the previously outstanding performance bonus obligation of $1.2 million payable to the eligible employees under the Solutions Infini 2018 Purchase Agreement was paid in full and as such the obligation terminated pursuant to its terms and no further obligation remains outstanding as of March 31, 2022.

Other Current and Long-Term Lia

Other Current and Long-Term Liabilities	3 Months Ended
	Mar. 31, 2022
Other Liabilities Disclosure [Abstract]
Other Current and Long-Term Liabilities	13. OTHER CURRENT AND LONG-TERM LIABILITIES Other current liabilities consisted of the following (in thousands): As of March 31, As of December 31, 2022 2021 Liabilities for tax other than income tax $ 1,072 $ 1,210 VAT payables 49 476 Social security liabilities 380 522 Current tax liabilities 926 945 Accrued financial interest 156 139 Accrued contractual interests on Merger Convertible Notes 4,044 1,024 Capital leases 53 65 Other miscellaneous 2,133 3,893 Total other current liabilities $ 8,813 $ 8,274 Other long-term liabilities consisted of the following (in thousands): As of March 31, As of December 31, 2022 2021 Warrant liability $ 355 $ 889 Interest rate swaps 12 35 Capital leases 113 129 Other miscellaneous 773 787 Total other long-term liabilities $ 1,253 $ 1,840

Geographic Information

Geographic Information	3 Months Ended
	Mar. 31, 2022
Segment Reporting [Abstract]
Geographic Information	14. GEOGRAPHIC INFORMATION Revenue by geographic area is determined on the basis of the location of the customer, unless the delivery location is triggered by concentration criteria. The Company generates its revenue primarily in the United States, India and Italy. The following table sets forth revenue by geographic area for the three ended March 31, 2022 and 2021 (in thousands): Three Months Ended March 31, 2022 2021 United States $ 24,635 $ 5,121 India 21,176 11,718 Italy 16,509 16,087 Europe (excluding Italy) 7,001 1,418 South America 5,964 — Rest of the world 5,196 5,370 Total $ 80,481 $ 39,714 Three Months Ended March 31, 2022 2021 United States 30.6 % 12.9 % India 26.3 % 29.5 % Italy 20.5 % 40.5 % Europe (excluding Italy) 8.7 % 3.6 % South America 7.4 % 0.0 % Rest of the world 6.5 % 13.5 % As of March 31, 2022, the majority of the Company’s long-lived assets are located in United States and Italy. The following table sets forth long-lived assets by geographic area as of March 31, 2022 and December 31, 2021 (in thousands): As of March 31, As of December 31, 2022 2021 United States $ 10,339 $ 10,027 Italy 4,634 4,391 India 4,248 3,778 Rest of the world 603 615 Total $ 19,824 $ 18,811 As of March 31, As of December 31, 2022 2021 United States 52.2 % 53.3 % Italy 23.4 % 23.3 % India 21.4 % 20.1 % Rest of the world 3.0 % 3.3 %

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2022
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	15. COMMITMENTS AND CONTINGENCIES Lease Commitments The Company entered into various operating lease agreements that expire over various years in the next seven years. The Company’s Milan office lease contains an option to renew the lease for six years under terms and conditions set forth in the lease agreement. Certain of the Company’s leases contain provisions for rental adjustments. Operating lease rentals are expensed on a straight-line basis over the life of the lease beginning on the date the Company takes possession of the property. Rent expense was $420,000 and $192,000 for the three months ended March 31, 2022 and 2021, respectively. Future minimum lease payments under leasing obligations as of March 31, 2022 are as follows (in thousands): As of March 31, 2022 Operating Leases Capital Leases Total 2022 (remaining nine months) $ 1,111 $ 44 $ 1,155 2023 889 58 947 2024 753 58 811 2025 571 20 591 2026 343 — 343 2027 and thereafter 678 — 678 Total minimum lease payments $ 4,345 $ 180 $ 4,525 Future minimum lease payment under capital leases as of March 31, 2022 consisted of the following (in thousands): As of March 31, 2022 Capital Leases Total payments $ 180 Less: interest portion 14 Net capital lease obligation $ 166 Less: current portion 53 Long term portion $ 113 The current and long-term portion of the future minimum lease payments under capital lease are included in the condensed consolidated balance sheet line item “Other current liabilities” and “Other long-term liabilities”, respectively. Contingencies As of March 31, 2022, the Company had contingent liabilities of $125,000, relating to a tax appeal of Solutions Infini for which no provision was recognized as its occurrence was deemed remote.

Restricted Stock Units

Restricted Stock Units	3 Months Ended
	Mar. 31, 2022
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Restricted Stock Units	16. RESTRICTED STOCK UNITS (RSUs) The following table sets forth the activity related to the number of outstanding RSUs for the three months ended March 31, 2022: Number of shares Weighted- average grant date fair value (per share) Non-vested as of December 31, 2021 4,374,021 $ 10.33 Vested (328,196 ) $ 10.34 Granted 450,700 $ 8.61 Cancelled (70,529 ) $ 10.39 Non-vested as of March 31, 2022 4,425,996 $ 10.15 RSUs compensation expense for the three months ended March 31, 2022 was $6.8 million, which was recorded as follows (in thousands): Three Months Ended March 31, 2022 2021 Research and development $ 1,020 $ 971 Sales and marketing 783 522 General and administrative 4,956 3,067 Total $ 6,759 $ 4,560 As of March 31, 2022, there was $22.7 million of unrecognized compensation cost related to non-vested RSUs to be recognized over a weighted-average remaining period of 1.26 years.

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Income Taxes	17. INCOME TAXES The tax expense and the effective tax rate resulting from operations were as follows (in thousands): Three Months Ended March 31, 2022 2021 Income (loss) before income taxes $ (12,481 ) $ (10,324 ) Income tax expense 691 34 Effective tax rate (5.54 %) (0.33 %) The increase in the effective tax rate for the three months ended March 31, 2022, as compared to three months ended March 31, 2021, is driven by domestic permanent differences, primarily related to the Global Intangible Low-Tax Income provision (GILTI) inclusion, and amount and mix of income (loss) from certain tax jurisdictions. The Company’s recorded effective tax rate is less than the U.S. statutory rate primarily due to changes in the valuation allowance caused by a reduction in deferred tax liabilities, current tax expense in tax jurisdictions that provide for a valuation allowance, and foreign tax rate differentials from the U.S. domestic statutory tax rate. The Company currently has valuation allowances recorded against its deductible temporary differences and net operating loss carryforwards in certain jurisdictions where the non-realizability of such deferred tax assets is concluded to be more likely than not. Each quarter, the Company evaluates all available evidence to assess the recoverability of its deferred tax assets in each jurisdiction, including significant events and transactions, both positive and negative, and the reversal of taxable temporary differences and forecasted earnings. As a result of the Company’s analysis, management concluded that it is more likely than not that a portion of its deferred tax assets will not be realized. Therefore, the Company continues to provide a valuation allowance against its deferred tax assets in certain jurisdictions. The Company continues to monitor available evidence and may reverse some or all of its remaining valuation allowance in future periods, if appropriate. The Company has a recorded valuation allowance against its deferred tax assets approximating $37.9 million as of March 31, 2022, and $15.6 million as of March 31, 2021. Under the acquisition method of accounting for business combinations, if changes are identified to acquired deferred tax asset valuation allowances or liabilities related to uncertain tax positions during the measurement period, and they are related to new information obtained about facts and circumstances that existed as of the acquisition date, those changes are considered a measurement-period adjustment, and offsets to goodwill are recorded. Kaleyra US, Inc.’s acquired deferred tax asset valuation measurement period remains open primarily related to pre-acquisition income tax return filings, that are due in the three-month period ending June 30, 2022.

Warrants

Warrants	3 Months Ended
	Mar. 31, 2022
Warrants And Rights Note Disclosure [Abstract]
Warrants	18. WARRANTS The Company’s warrants are only exercisable for whole shares at $11.50 per share. Under the terms of the warrant agreement dated December 12, 2017 (the “Warrant Agreement”), the Company agreed to use its best efforts to file a new registration statement following the completion of the Business Combination, for the registration of the shares of common stock issuable upon exercise of the warrants. That registration statement was filed by the Company on May 4, 2020 and declared effective by the SEC on May 8, 2020. No fractional shares are issuable upon exercise of the warrants. If, upon exercise of the warrants, a holder would be entitled to receive a fractional interest in a share, the Company will, upon exercise, round down to the nearest whole number for the number of shares of common stock to be issued to the warrant holder. Each warrant became exercisable 30 days after the completion of the Business Combination and will expire five years after the completion of the Business Combination or earlier upon redemption or liquidation. Once the warrants became exercisable, the Company could redeem the outstanding warrants in whole and not in part at a price of $0.01 per warrant upon a minimum of 30 days’ prior written notice of redemption, only in the event that the last sale price of the Company’s shares of common stock equals or exceeds $18.00 per share for any 20 trading days within the 30-trading day period ending on the third trading day before the Company sends the notice of redemption to the warrant holders. On April 12, 2021, the SEC issued a SEC Staff Statement on “Accounting and Reporting Considerations for Warrants Issued by Special Purpose Acquisition Companies (“SPACs”) (the “SEC Staff Statement”). The SEC Staff Statement addresses certain accounting and reporting considerations related to warrants of a kind similar to those issued by the Company at the time of its initial public offering in December 2019. Based on ASC 815-40, “Contracts in Entity’s Own Equity”, warrant instruments that do not meet the criteria to be considered indexed to an entity’s own stock shall be initially classified as liabilities at their estimated fair values. In periods subsequent to issuance, changes in the estimated fair value of the derivative instruments should be reported in the consolidated statements of operations. Following the SEC Staff Statement, management evaluated the fact pattern set forth within the Company’s Warrant Agreement and concluded that the warrants issued in connection with private placements that occurred in December 2017 and January 2018 concurrently with its initial public offering (the “Private Placement Warrants”) should have been recorded as a liability at fair value as the Private Placement Warrants were not considered to be indexed to the entity’s own stock. Because the transfer of Private Placement Warrants to anyone other than the initial purchasers or their permitted transferees would result in the Private Placement Warrants having substantially the same terms as warrants issued in the Company’s initial public offering, management determined that the fair value of each Private Placement Warrant approximated the fair value of its publicly traded warrants. Management analyzed the impact of this error on the Company’s prior consolidated financial statements beginning from the date when the Private Placement Warrants were issued and concluded that the adjustments were immaterial to any period presented in previously issued consolidated financial statements. The out-of-period adjustment related to the prior periods was also immaterial to the three months ended March 31, 2021. As a result of this analysis, the Company corrected this error in the three months ended March 31, 2021. The correction resulted in an increase of $534,000 in other long-term liabilities, a decrease of $344,000 in additional paid-in capital and an increase of $190,000 in financial income (expense), net for the quarter ended March 31, 2021. During the three months ended March 31, 2022, the Company recorded $534,000 in “Financial expense, net” on the condensed consolidated statements of operation for the change in fair value of the Private Placement Warrants. On August 24, 2021, the Company entered into Warrant Repurchase Agreements with certain holders to repurchase warrants held by these holders for the purchase of an aggregate amount of 1,684,470 shares of the Company’s common stock. The warrants were initially issued by the Company in its initial public offering on December 7, 2017. Pursuant to the Warrant Repurchase Agreements, on August 27, 2021, the Company paid $3.25 per underlying share of common stock to repurchase these warrants, at an aggregate purchase price of $5.5 million for the surrender and cancellation of these warrants held by such holders. As of March 31, 2022, there were 5,440,662 warrants outstanding.

Net Loss Per Share

Net Loss Per Share	3 Months Ended
	Mar. 31, 2022
Earnings Per Share [Abstract]
Net Loss Per Share	19. NET LOSS PER SHARE The following table sets forth the calculation of basic and diluted net loss per share during the period presented (in thousands, except share and per share data): Three Months Ended March 31, 2022 2021 Net loss $ (13,172 ) $ (10,358 ) Weighted average shares used to compute net loss per common share, basic and diluted 42,247,518 30,364,943 Net loss per common share, basic and diluted $ (0.31 ) $ (0.34 ) The Company generated a net loss for each of the three months ended March 31, 2022 and 2021. Accordingly, the effect of dilutive securities is not considered in the net loss per share for such periods because their effect would be anti-dilutive on the net loss per share. For the three months ended March 31, 2022, the weighted average number of outstanding shares of common stock equivalents, which were excluded from the calculation of the diluted net loss per share as their effect would be anti-dilutive, was 9,854,005, and 12,704,582 for the three months ended March 31, 2021.

Transactions with Related Parti

Transactions with Related Parties	3 Months Ended
	Mar. 31, 2022
Related Party Transactions [Abstract]
Transactions with Related Parties	20. TRANSACTIONS WITH RELATED PARTIES During the three months ended March 31, 2022 and 2021, related party transactions, other than compensation and similar arrangements in the ordinary course of business, were as follows: i. Unsecured convertible promissory notes, received by Esse Effe and Maya at the closing of the Business Combination, pursuant to the terms of the Stock Purchase Agreement. Maya is affiliated with Dario Calogero and the shares are beneficially owned by a shareholder, Mr. Calogero, who is the Chief Executive Officer and a director of the Company . Esse Effe is affiliated with Dr. Emilio Hirsch, and its shares are beneficially owned by Dr. Hirsch, a shareholder and a director of the Company. Under the terms of Business Combination Convertible Notes , the previously outstanding principal balance of these notes, plus all accrued and unpaid interest, became due and payable following the private placement equity financing event in support for the consummation of the Merger Agreement for the acquisition of mGage of June 1, 2021. The outstanding principal amount of $ million plus accrued interest of $ 84,000 was paid in full on June 2, 2021 and the obligation terminated pursuant to its terms. No outstanding amount was due by the Company as of March 31 , 202 2 . See Note 10 – Notes Payable – for additional information; ii. Legal services rendered by a partner of Studio Legale Chiomenti, a family member of a key manager of the Company. Costs incurred by the Company for the above services were $12,000 in the three months ended March 31, 2022 ($80,000 in the three months ended March 31, 2021); iii. Alessandra Levy, the spouse of the Company’s Chief Executive Officer, Dario Calogero, is an employee within the marketing team of Kaleyra S.p.A. Ms. Levy received salary and benefits in the amount of $56,000 for the three months ended March 31, 2022 ($60,000 in the three months ended March 31, 2021); iv. Pietro Calogero, the son of the Company’s Chief Executive Officer, Dario Calogero, is an employee within the research and development team of Kaleyra S.p.A. Mr. Pietro Calogero received salary and benefits in the amount of $10,000 for the three months ended March 31, 2022 ($12,000 in the three months ended March 31, 2021); and v. As mentioned in Note 12, in the three months ended March 31, 2020, as a result of the modification of the Solutions Infini 2018 Purchase Agreement, a significant portion of the liability for preference shares was replaced with bonus compensation of $3.5 million. During fiscal year 2020, the previously outstanding bonus compensation payable to executive managers was paid in two different installments of $1.4 million on August 31, 2020, and of $883,000 on November 30, 2020. Following the full and final settlement agreements signed on February 3, 2021, the previously outstanding performance bonus obligation of $1.2 million payable to the eligible employees under the Solutions Infini 2018 Purchase Agreement was paid in full by June 30, 2021 and as such the obligation terminated pursuant to its terms and no further obligation remains outstanding as of March 31, 2022. See Note 12 – Preference Shares Liabilities – for further details. The following table presents the expenses for transactions with related parties reported in the condensed consolidated statements of operations (in thousands): Three Months Ended March 31, 2022 2021 Research and development $ 10 $ 12 Sales and marketing 56 60 General and administrative 12 80 Financial expense, net — 44

Revenue

Revenue	3 Months Ended
	Mar. 31, 2022
Revenue From Contract With Customer [Abstract]
Revenue	21 . REVENUE Revenue Recognition Revenue is recognized upon transfer of control of promised products or services to customers using the Company’s Platforms in an amount that reflects the consideration Kaleyra expects to receive in exchange for those products or services. Kaleyra enters into contracts that can include various combinations of products and services, which are generally not capable of being distinct and are therefore accounted for as a series of distinct services under a single performance obligation in accordance with ASC 606-10-25-14 and ASC 606-10-25-15. Revenue is recognized net of allowances for any credits and any taxes collected from customers, which are subsequently remitted to governmental authorities. Kaleyra determines revenue recognition through the following steps: • Identification of the contract, or contracts, with a customer; • Identification of the performance obligations in the contract; • Determination of the transaction price; • Allocation of the transaction price to the performance obligations in the contract; and • Recognition of revenue when, or as, the Company satisfies a performance obligation. No significant judgments are required in determining whether products and services are considered distinct performance obligations and should be accounted for separately versus together, or to determine the stand-alone selling price. Kaleyra’s arrangements do not contain general rights of return. The contracts do not provide customers with the right to take possession of the software supporting the applications. Amounts that have been invoiced are recorded in trade receivables and in revenue or deferred revenue depending on whether the revenue recognition criteria have been met. Nature of Products and Services Kaleyra's revenue is primarily derived from usage-based fees earned from the sale of communications services offered through access to the Company’s Platforms to large enterprises as well as small and medium-sized customers. Revenue is recognized upon the sending of a SMS message or by the authentication of a financial transaction of an end-user of the Company’s customer using the Company’s Platforms in an amount that reflects the consideration the Company expects to receive in exchange for those services which is generally based upon agreed fixed prices per unit. Platforms access services are considered a monthly series comprised of one performance obligation and usage-based fees are recognized as revenue in the period in which the usage occurs. After usage occurs, there are no remaining obligations that would preclude revenue recognition. Revenue from usage-based fees represented 94% of total revenue for the three months ended March 31 March 31, 2021 Subscription-based fees are derived from certain term-based contracts, such as with the sales of short code subscriptions and customer support, which is generally one year. Term-based contract revenue is recognized on a ratable basis over the contractual term of the arrangement beginning on the date that the service is made available to the customer. Revenue from term-based fees represented 6% of total revenue for the three months ended March 31, 2022 (2% of total revenue for the three months ended March 31, 2021). Deferred Revenue Deferred revenue consists of advance cash payments from customers to be applied against future usage and customer billings in advance of revenues being recognized under the Company’s non-cancellable contracts. Deferred revenue is generally expected to be recognized during the succeeding 12-month period and is thus recorded as a current liability. As of March 31 March 31 Disaggregated Revenue In general, revenue disaggregated by geography is aligned according to the nature and economic characteristics of the Company’s business and provides meaningful disaggregation of the Company’s results of operations. See Note 14 – Geographic Information – for details of revenue by geographic area.

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2022
Subsequent Events [Abstract]
Subsequent Events	22. SUBSEQUENT EVENTS There were no significant reportable subsequent events that occurred after the balance sheet date but before financial statements were issued.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2022
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying condensed consolidated financial statements of the Company are unaudited, and have been prepared in accordance with accounting principles generally accepted in the United States of America (“US GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, this interim quarterly financial report does not include all disclosures required by US GAAP. In the opinion of the Company’s management, the unaudited condensed consolidated financial statements reflect all adjustments, consisting only of normal recurring adjustments, considered necessary to present fairly the financial position, results of operations and cash flows of the Company and its consolidated subsidiaries for all periods presented. The results of operations for the three months ended March 31, 2022 are not necessarily indicative of the results to be expected in the future or for the full fiscal year. It is recommended that these condensed consolidated financial statements be read in conjunction with the Company’s consolidated financial statements and the notes thereto included in its 2021 Annual Report on Form 10-K filed with the Securities and Exchange Commission (the “SEC”) on March 8, 2022. These condensed consolidated financial statements have been prepared in conformity with US GAAP applicable for an “emerging growth company” as defined in the Jumpstart Our Business Startups Act (“JOBS Act”). The JOBS Act provides, in part, that an emerging growth company can take advantage of an extended transition period for complying with new or revised accounting standards. In particular, an emerging growth company can delay the adoption of certain accounting standards until those standards would apply to private companies. For the purpose of these condensed consolidated financial statements, the Company availed itself of an extended transition period for complying with new or revised accounting standards and, as a result, did not adopt new or revised accounting standards on the relevant dates on which adoption of such standards is required for public companies.
Liquidity	Liquidity The Company evaluated its ability to continue as a going concern. The Company has negative cash flows from operating activities through March 31, 2022. The condensed consolidated balance sheet as of March 31, 2022 includes total current assets of $183.9 million and total current liabilities of $109.0 million, resulting in net current assets of $74.9 million. On February 18, 2021, and for the purposes of raising the cash portion of the consideration for the Merger, the Company entered into the PIPE Subscription Agreements with the PIPE Investors and the Convertible Note Subscription Agreements with the Convertible Note Investors. Pursuant to these agreements, and prior to the closing of the Merger on June 1, 2021, the Company issued and sold in private placements an aggregate of $105 million or 8,400,000 shares of the Company’s common stock to the PIPE Investors at $12.50 per share, and $200 million aggregate principal amount of unsecured Merger Convertible Notes. Considering the effects of the financings described above and the typical financial cycle of the Company, the Company’s management believes that the Company’s cash and availability of borrowings will be sufficient to support its planned operations for at least the next 12 months from the date these condensed consolidated financial statements were issued.
Business seasonality	Business seasonality Historically, the Company has experienced clear seasonality in its revenue generation, with slower traction in the first calendar quarter, and increasing revenues as the year progresses. The Company typically experiences higher revenues in messaging and notification services during the fourth calendar quarter. This patterned revenue generation behavior takes place due to the Company’s customers sending more messages to their end-user customers who are engaged in consumer transactions at the end of the calendar year, resulting in an increase in notifications of electronic payments, credit card transactions and e-commerce orders.
Principles of Consolidation	Principles of Consolidation The condensed consolidated financial statements include the Company and its wholly owned subsidiaries, including Kaleyra S.p.A., Solutions Infini, Buc Mobile, mGage Europe Limited, Campaign Registry and Kaleyra US Inc., which represent its major operations. All significant intercompany balances and transactions have been eliminated in consolidation.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. These estimates are used for, but not limited to, revenue recognition; allowance for doubtful accounts; valuation of the Company’s stock-based awards; recoverability of goodwill, long-lived and intangible assets; capitalization and useful life of the Company’s capitalized internal-use software development costs; fair value of acquired intangible assets and goodwill; accruals, including tax related provision and valuation allowance on deferred taxes. Estimates are based on historical experience and on various assumptions that the Company believes are reasonable under current circumstances. However, future events are subject to change and best estimates and judgments may require further adjustments; therefore, actual results could differ materially from those estimates. Management periodically evaluates such estimates and they are adjusted prospectively based upon such periodic evaluation. Actual results and outcomes may differ from management’s estimates and assumptions due to risks and uncertainties, including uncertainty in the current economic environment due to the continuing impact of the novel strain of the coronavirus (“COVID-19”) and the armed conflict between Russia and Ukraine.
Concentration of Credit Risk	Concentration of Credit Risk Financial instruments that potentially expose the Company to a concentration of credit risk consist primarily of cash and cash equivalents, restricted cash, short-term investments and trade receivables. The Company maintains its cash and cash equivalents, restricted cash and short-term investments with financial institutions that management believes are financially sound. The Company sells its services to a wide variety of customers. If the financial condition or results of operations of any significant customers deteriorate substantially, the Company’s operating results could be adversely affected. To reduce credit risk, management performs ongoing credit evaluations of the financial condition of significant customers. The Company maintains reserves for estimated credit losses on customer accounts when considered necessary. Actual credit losses may differ from the Company’s estimates. In both of the three months ended March 31, 2022 and 2021, there was no customer that individually accounted for more than 10% of the Company’s consolidated total revenue. As of March 31, 2022 and December 31, 2021, one individual customer in both periods accounted for more than 10% of the Company’s consolidated total trade receivables. Trade receivables accounted for by that one customer amounted to $10.2 million as of March 31, 2022 and another customer accounted for $9.6 million in trade receivables as of December 31, 2021.
Warrant Liability	Warrant Liability The Company accounts for warrants for shares of the Company’s common stock that are not indexed to its own stock as liabilities at fair value on the condensed consolidated balance sheets. The warrants are subject to remeasurement at each balance sheet date and any change in fair value is recognized in “Financial expense, net” on the condensed consolidated statements of operations. The liability is included in the condensed consolidated balance sheet line item “Other long-term liabilities”. The Company will continue to adjust the liability for changes in fair value until the earlier of the exercise or expiration of the common stock warrants. At that time, the portion of the warrant liability related to the common stock warrants will be reclassified as additional paid-in capital.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In May 2021, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ for Certain Modifications or Exchanges of Freestanding Equity-Classified Written Call Options” which clarifies and reduces diversity in an issuer’s accounting for modifications or exchanges of freestanding equity-classified written call options (for example, warrants) that remain equity classified after modification or exchange. An entity should measure the effect of a modification or an exchange of a freestanding equity-classified written call option that remains equity classified after modification or exchange as follows: i) for a modification or an exchange that is a part of or directly related to a modification or an exchange of an existing debt instrument or line-of-credit or revolving-debt arrangements (hereinafter, referred to as a “debt” or “debt instrument”), as the difference between the fair value of the modified or exchanged written call option and the fair value of that written call option immediately before it is modified or exchanged; ii) for all other modifications or exchanges, as the excess, if any, of the fair value of the modified or exchanged written call option over the fair value of that written call option immediately before it is modified or exchanged. The amendments in this u pdate are effective for all entities for fiscal years beginning after December 15, 2021, including interim periods within those fiscal years. An entity should apply the amendments prospectively to modifications or exchanges occurring on or after the effective date of the amendments. The Company adopted the amendments, and the adoption did not have a material impact on its condensed consolidated financial statements . In January 2021, the FASB issued ASU 2021-01 “Reference Rate Reform (Topic 848)”, which clarifies that certain optional expedients and exceptions in Topic 848 for contract modifications and hedge accounting apply to derivatives that are affected by the discounting transition. Specifically, certain provisions in Topic 848, if elected by an entity, apply to derivative instruments that use an interest rate for margining, discounting, or contract price alignment that is modified as a result of reference rate reform. Amendments in this update to the expedients and exceptions in Topic 848 capture the incremental consequences of the scope clarification and tailor the existing guidance to derivative instruments affected by the discounting transition. The amendments in this update apply to all entities that elect to apply the optional guidance in Topic 848. The amendments do not apply to contract modifications made after December 31, 2022 or new hedging relationships entered into after December 31, 2022. For existing hedging relationships evaluated for effectiveness in periods after December 31, 2022, an exception is made for those hedging relationships that apply certain optional expedients in which the accounting effects are recorded through the end of the hedging relationship (including periods after December 31, 2022). The Company is currently evaluating the impact of the optional expedients and exceptions of this standard on its condensed consolidated financial statements. 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” which is aimed to address issues identified as a result of the complexity associated with applying generally accepted accounting principles for certain financial instruments with characteristics of liabilities and equity. In addressing the complexity, the FASB focused on amending the guidance on convertible instruments and the guidance on the derivatives scope exception for contracts in an entity’s own equity. For convertible instruments, the Board decided to reduce the number of accounting models for convertible debt instruments and convertible preferred stock. Limiting the accounting models results in fewer embedded conversion features being separately recognized from the host contract as compared with current GAAP. Convertible instruments that continue to be subject to separation models are (1) those with embedded conversion features that are not clearly and closely related to the host contract, that meet the definition of a derivative, and that do not qualify for a scope exception from derivative accounting and (2) convertible debt instruments issued with substantial premiums for which the premiums are recorded as paid-in capital. The Company adopted the amendments in this update as of the beginning of its annual fiscal year 2021, which resulted in the embedded conversion features of the Merger Convertible Note not being separately recognized from the host contract pursuant to their scope exception from derivative accounting under ASC 815-10-15-74(a). Interest Make-Whole Payment feature met the definition of a derivative but did not fall within the above scope exception, nonetheless its value was de minimis and as such no amount was recorded in the consolidated financial statements at the time of the issuance of the Merger Convertible Notes nor at any subsequent reporting date. In June 2020, the FASB issued ASU 2020-05 “Revenue from Contracts with Customers (Topic 606) and Leases (Topic 842): Effective dates for certain entities” (“ASU 2020-05”), which provides a limited one year deferral of the effective dates of the following updates (including amendments issued after the issuance of the original update) to provide immediate, near-term relief for certain entities for whom these updates are either currently effective or imminently effective: i) ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) (“Revenue”); ii) ASU No. 2016-02, Leases (Topic 842) (“Leases”). In November 2019, the FASB issued ASU 2019-10 “Financial Instruments - Credit Losses (Topic 326), Derivatives and Hedging (Topic 815), and Leases (Topic 842): Effective Dates” (“ASU 2019-10”). The amendments in this ASU amended certain effective dates for the above ASU 2016-02, Leases (including amendments issued after the issuance of the original ASU). The effective dates for Leases after applying ASU 2019-10 were as follows: public business entities, excluding emerging growth companies and smaller reporting companies, for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. All other entities for fiscal years beginning after December 15, 2020, and interim periods within fiscal years beginning after December 15, 2021. Early application continues to be allowed. In ASU 2019-10, the FASB noted that challenges associated with transition to a major update are often magnified for private companies and smaller public companies. Those challenges have been significantly amplified by the current business and capital market disruptions caused by the COVID-19 pandemic. For this reason, the FASB issued the amendments in ASU 2020-05 by deferring the effective date for one additional year for entities in the “all other” category that have not yet issued their financial statements (or made financial statements available for issuance) reflecting the adoption of Leases. Therefore, under the amendments, Leases (Topic 842) is effective for entities within the “all other” category for fiscal years beginning after December 15, 2021, and interim periods within fiscal years beginning after December 15, 2022. Early application continues to be permitted, which means that an entity may choose to implement Leases before those deferred effective dates. The Company expects the adoption to have a material impact to the consolidated balance sheets for the recording of the "right-to-use" asset and corresponding lease liability. The Company plans to adopt the ASU in its fiscal year ending December 31, 2022, by utilizing the modified retrospective transition approach, which will result in an estimated current period adjustment on January 1, 2022 related to the recognition of a right-of-use asset and corresponding lease liability between $ 3.0 million and $ 4.0 million on its condensed consolidated balance sheet. In February 2020, the FASB issued ASU 2020-02 “Financial Instruments—Credit Losses (Topic 326) and Leases (Topic 842), Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 119 and Update to SEC Section on Effective Date Related to Accounting Standards Update No. 2016-02, Leases (Topic 842). This ASU applies to all registrants that are creditors in loan transactions that, individually or in the aggregate, have a material effect on the registrant’s financial condition. This ASU guidance is applicable upon a registrant’s adoption of Accounting Standards Codification (“ASC”) Topic 326. On November 15, 2019, the FASB delayed the effective date of ASC Topic 326 (ASU 2019-10), as noted below. In November 2019, the FASB issued ASU 2019-10 “Financial Instruments—Credit Losses (Topic 326), Derivatives and Hedging (Topic 815), and Leases (Topic 842): Effective Dates”. The amendments in ASU 2019-10 amend certain effective dates for the following major ASUs (including amendments issued after the issuance of the original ASU): a) b) A c) ASU 2016-02, Leases (Topic 842). The effective dates for Leases after applying ASU 2019-10 are as follows: public business entities, excluding emerging growth companies and smaller reporting companies, for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. All other entities for fiscal years beginning after December 15, 2020, and interim periods within fiscal years beginning after December 15, 2021. As noted above, the effective date of this ASU has now been delayed for one additional year by the issuance of ASU 2020-05. In August 2018, the FASB issued ASU 2018-15, “Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Contract”. This standard aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The standard is effective for public business entities for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. For all other entities, the amendments in this ASU are effective for annual reporting periods beginning after December 15, 2020, and interim periods within annual periods beginning after December 15, 2021. The Company adopted the amendments in this update as of the beginning of its annual fiscal year 2021, and the adoption did not have a material impact on its condensed consolidated financial statements. In August 2018, the FASB issued ASU 2018-14, “Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20)”, which modifies the disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans. The amendments are effective for fiscal years ending after December 15, 2020 for public business entities and for fiscal years ending after December 15, 2021 for all other entities. The Company is currently evaluating the impact of this standard on its condensed consolidated financial statements. In January 2017, the FASB issued ASU 2017-04, “Simplifying the Test for Goodwill Impairment”, which removes the second step of the goodwill impairment test that requires a hypothetical purchase price allocation. A goodwill impairment will now be the amount by which a reporting unit's carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. The Company adopted the amendments in this update as of the beginning of its annual fiscal year 2021, and the adoption did not have a material impact on its condensed consolidated financial statements. In June 2016, the FASB issued ASU 2016-13, “Financial Instruments—Credit Losses: Measurement of Credit Losses on Financial Instruments”, which changes the impairment model for most financial assets. The new model uses a forward-looking expected loss method, which will generally result in earlier recognition of allowances for losses. In November 2018, the FASB issued ASU 2018-19, “Codification Improvements to Topic 326, Financial Instruments— Credit Losses”, which clarifies that receivables arising from operating leases are not within the scope of Topic 326, Financial Instruments—Credit Losses. Instead, impairment of receivables arising from operating leases should be accounted for in accordance with Topic 842, Leases. These ASUs are effective for public entities for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years, and for other entities for fiscal years beginning after December 15, 2020 and interim periods within fiscal years beginning after December 15, 2021. Earlier application is permitted. As noted above, the effective date of this ASU was delayed for two year s by the issuance of ASU 2019-10. The Company is currently evaluating the impact of this standard on its condensed consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, “Leases”, which was further clarified by ASU 2018-10, “Codification Improvements to Topic 842, Leases”, and ASU 2018-11, “Leases—Targeted Improvements”, both issued in July 2018. ASU 2016-02 affects all entities that lease assets and will require lessees to recognize a lease liability and a right-of-use asset for all leases (except for short-term leases that have a duration of less than one year) as of the date on which the lessor makes the underlying asset available to the lessee. For lessors, accounting for leases is substantially the same as in prior periods. ASU 2018-10 clarifies or corrects unintended application of guidance related to ASU 2016-02. The amendment affects narrow aspects of ASU 2016-02 related to the implicit rate in the lease, impairment of the net investment in the lease, lessee reassessment of lease classification, lessor reassessment of lease term and purchase options, variable payments that depend on an index or rate and certain transition adjustments. ASU 2018-11 adds a transition option for all entities and a practical expedient only for lessors. The transition option allows entities to not apply the new lease standard in the comparative periods they present in their financial statements in the year of adoption. Under the transition option, entities can opt to continue to apply the legacy guidance in ASC 840, “Leases”, including its disclosure requirements, in the comparative prior periods presented in the year they adopt the new lease standard. Entities that elect this transition option will still be required to adopt the new leases standard using the modified retrospective transition method required by the standard, but they will recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption rather than in the earliest period presented. The new standards are effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years for a public business entity. For all other entities, the amendments in this ASU are effective for fiscal years beginning after December 15, 2019, and interim periods within fiscal years beginning after December 15, 2020. Earlier application is permitted. As noted above, the effective date of this ASU was delayed for two years by the issuance of ASU 2020-05.

Business Combinations (Tables)

Business Combinations (Tables)	3 Months Ended
	Mar. 31, 2022
Business Acquisition [Line Items]
Unaudited Supplemental Pro-forma Information	Three Months Ended March 31, (in thousands, except share and per share amounts) 2022 2021 Revenue $ 80,481 $ 72,340 Net loss (13,172 ) (13,980 ) Net loss per common share, basic and diluted $ (0.31 ) $ (0.35 ) Weighted-average shares used in computing net loss per common share, basic and diluted 42,247,518 40,364,943
mGage
Business Acquisition [Line Items]
Summary of Fair Value Amount Recognized for Assets Acquired and Liabilities Assumed	The following table summarizes the fair value amount recognized for the assets acquired and liabilities assumed as of the acquisition date (in thousands): Customer relationships (1) $ 76,256 Developed technology (1) 30,033 Trade names (1) 13,060 Deferred tax assets on loss carryforward 25,011 Goodwill (2) 86,321 Accounts receivable and other current assets 29,996 Property and equipment 8,450 Cash and cash equivalents 2,856 Total assets acquired 271,983 Deferred tax liabilities 32,284 Accounts payable and other current liabilities 22,665 Total liabilities assumed 54,949 Net assets acquired $ 217,034 (1) Identified finite-lived intangible assets. The estimated fair value of the intangible assets acquired was determined by the Company, which considered or relied in part upon a valuation report of a third-party expert. The Company used income approaches to estimate the fair values of the identifiable intangible assets. The estimated useful life is 7 to 9 years for customer relationships, 6 years for developed technology and 8 years for trade names. (2) Goodwill is the excess of fair value of the consideration transferred over the fair value of identifiable tangible and intangible assets acquired and liabilities assumed and represents expected synergies of the combination of the acquired business. Goodwill is not deductible for income tax purposes.
Bandyer
Business Acquisition [Line Items]
Summary of Fair Value Amount Recognized for Assets Acquired and Liabilities Assumed	The following table summarizes the fair value amount recognized for the assets acquired and liabilities assumed as of the acquisition date (in thousands): Property and equipment, net $ 116 Developed technology (1) 7,999 Customer relationship (1) 1,798 Goodwill (2) 8,146 Cash and cash equivalents 349 Trade receivables and other current assets 671 Other non current assets 21 Total assets acquired 19,100 Deferred tax liabilities 2,616 Accounts payable and other current liabilities 986 Long term portion of employee benefit obligation 126 Current portion of bank and other borrowings 39 Total liabilities assumed 3,767 Net assets acquired $ 15,333 (1) Identified finite-lived intangible assets. The estimated fair value of the intangible assets acquired was determined by Kaleyra, which considered or relied in part upon a valuation report of a third-party expert. The Company used income approaches to estimate the fair values of the identifiable intangible assets. The estimated useful life is 8 years for customer relationships and 15 years for developed technology. (2) Goodwill is the excess of fair value of the consideration transferred over the fair value of identifiable tangible and intangible assets acquired and liabilities assumed and represents expected synergies of the combination of the acquired business. Goodwill is not deductible for income tax purposes.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2022
Fair Value Disclosures [Abstract]
Summary of Assets and Liabilities Measured at Fair Value on a Recurring Basis	The following tables provide the assets and liabilities measured at fair value on a recurring basis as of March 31 , 2022 and December 31, 2021 (in thousands): Fair Value Hierarchy as of March 31, 2022 Aggregate Level 1 Level 2 Level 3 Fair Value Assets: Mutual funds (1) $ 599 $ — $ — $ 599 Certificates of deposit (2) — 6,695 — 6,695 Total Assets $ 599 $ 6,695 $ — $ 7,294 Liabilities: Interest Rate Swap (3) $ — $ 12 $ — $ 12 Warrant liability (4) — 355 — 355 Total Liabilities $ — $ 367 $ — $ 367 (1) Included in the condensed consolidated balance sheet line item “Short-term investments”. (2) Included in the condensed consolidated balance sheet line item “Short-term investments”, with maturity terms between 4 and 12 months held in India. (3) Included in the condensed consolidated balance sheet line item “Other long-term liabilities”. (4) Included in the condensed consolidated balance sheet line item “Other long-term liabilities”. See Note 18 – Warrants – for further details. Fair Value Hierarchy as of December 31, 2021 Aggregate Level 1 Level 2 Level 3 Fair Value Assets: Mutual funds (1) $ 602 $ — $ — $ 602 Certificates of deposit (2) — 5,634 — 5,634 Total Assets $ 602 $ 5,634 $ — $ 6,236 Liabilities Interest Rate Swap (3) $ — $ 35 $ — $ 35 Warrant liability (4) — 889 — 889 Total Liabilities $ — $ 924 $ — $ 924 (1) Included in the condensed consolidated balance sheet line item “Short-term investments”. (2) Included in the condensed consolidated balance sheet line item “Short-term investments”, with maturity terms between 4 and 12 months held in India. (3) Included in the condensed consolidated balance sheet line item “Other long-term liabilities”. (4) Included in the condensed consolidated balance sheet line item “Other long-term liabilities”. See Note 18 – Warrants – for further details.
Summary of Values of Short-term Investments	The values of short-term investments as of March 31, 2022 and as of December 31, 2021 were as follows (in thousands): As of March 31, 2022 As of December 31, 2021 Cost Unrealized Gains Unrealized Losses Fair Value Cost Unrealized Gains Unrealized Losses Fair Value Mutual funds $ 594 $ 5 $ — $ 599 $ 572 $ 30 $ — $ 602 Certificates of deposit 6,695 — — 6,695 5,634 — — 5,634

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2022
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Schedule of Gain (Losses) in the Condensed Consolidated Statement of Operations Related to Derivative Contracts	The amount and location of the gains (losses) in the condensed consolidated statements of operations related to derivative contracts is as follows (in thousands): Three Months Ended March 31, Derivatives Not Designed As Hedging Instruments Line Items 2022 2021 Interest Rate Swap Financial income (expense), net $ 22 $ 13
Schedule of Fair Value Derivative Contracts Reported in Condensed Consolidated Balance Sheet	The following table presents the fair value and the location of derivative contracts reported in the condensed consolidated balance sheets (in thousands): As of March 31, As of December 31, Derivatives Not Designed As Hedging Instruments Line Items 2022 2021 Interest Rate Swap Other long-term liabilities $ 12 $ 35

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets, Net (Tables)	3 Months Ended
	Mar. 31, 2022
Goodwill And Intangible Assets Disclosure [Abstract]
Summary of Goodwill	Goodwill as of March 31, 2022 and December 31, 2021 was as follows (in thousands): Balance as of December 31, 2021 $ 110,465 Purchase price adjustment in the period 96 Effect of exchange rate (473 ) Balance as of March 31, 2022 $ 110,088
Summary of Intangible Assets	Intangible assets consisted of the following (in thousands): As of March 31, 2022 As of December 31, 2021 Gross Accumulated Amortization Net Gross Accumulated Amortization Net Amortizable Intangible Assets: Developed technology $ 40,190 $ 6,959 $ 33,231 $ 40,416 $ 5,393 $ 35,023 Customer relationships 86,555 10,956 75,599 86,792 8,597 78,195 Trade names 13,038 1,358 11,680 13,060 952 12,108 Patent 130 65 65 131 61 70 Total amortizable intangible assets $ 139,913 $ 19,338 $ 120,575 $ 140,399 $ 15,003 $ 125,396
Summary of Estimated Future Amortization Expense	Total estimated future amortization expense as of is as follows (in thousands): As of March 31, 2022 2022 (remaining nine months) $ 12,814 2023 16,717 2024 16,615 2025 16,542 2026 16,468 2027 and thereafter 41,419 Total $ 120,575

Other Assets (Tables)

Other Assets (Tables)	3 Months Ended
	Mar. 31, 2022
Other Assets [Abstract]
Schedule of Other Current Assets	Other current assets consisted of the following (in thousands): As of March 31, As of December 31, 2022 2021 Receivables from suppliers $ 512 $ 483 Credit for tax other than income tax 481 675 Income tax receivables 230 1,195 Other receivables 439 246 Total other current assets $ 1,662 $ 2,599
Schedule of Other Long-Term Assets	Other long-term assets consisted of the following (in thousands): As of March 31, As of December 31, 2022 2021 Non-current income tax credit (advances and tax reduced at sources) $ 960 $ 53 Miscellaneous 504 346 Total other long-term assets $ 1,464 $ 399

Bank and Other Borrowings (Tabl

Bank and Other Borrowings (Tables)	3 Months Ended
	Mar. 31, 2022
Bank And Other Borrowings [Abstract]
Summary of Long-term Bank and Other Borrowings	Long-term bank and other borrowings consist of the following (in thousands): Interest Nominal Rate As of March 31, As of December 31, Interest Contractual Rate As of March 31, As of December 31, 2022 2021 Maturity as of March 31, 2022 2022 2021 UniCredit S.p.A. (Line A Tranche 1) $ 1,956 $ 2,330 July 2023 Euribor 3 months + 3.10% 2.80 % 2.80 % UniCredit S.p.A. (Line A Tranche 2) 97 113 November 2023 Euribor 3 months + 3.10% 2.80 % 2.80 % UniCredit S.p.A. (Line B) 2,061 2,337 May 2024 Euribor 3 months + 2.90% 2.60 % 2.60 % UniCredit S.p.A. (Line C) 1,546 1,833 August 2023 Euribor 3 months + 3.90% 3.44 % 3.33 % Intesa Sanpaolo S.p.A. (Line 1) 142 290 April 2022 Euribor 3 months + 2.30% 1.84 % 1.73 % Intesa Sanpaolo S.p.A. (Line 2) 2,544 2,872 April 2024 Euribor 3 months + 3.10% 2.64 % 2.53 % Intesa Sanpaolo S.p.A. (Line 3) 8,781 8,961 June 2026 Euribor 3 months + 2.15% 1.69 % 1.58 % Intesa Sanpaolo S.p.A. (Line 4) 5,519 5,927 July 2026 Euribor 3 months + 2.20% 1.74 % 1.63 % Monte dei Paschi di Siena S.p.A. (Line 1) 19 76 April 2022 0.95 % 0.95 % 0.95 % Monte dei Paschi di Siena S.p.A. (Line 2) 1,110 1,132 June 2023 1.50 % 1.50 % 1.50 % Banco BPM S.p.A. (Line 1) 486 593 June 2023 Euribor 3 months + 2.00% 2.00 % 2.00 % Banco BPM S.p.A. (Line 3) 4,483 5,014 September 2024 Euribor 3 months + 3.00% 2.54 % 2.43 % Simest 1 185 189 December 2023 0.50 % 0.50 % 0.50 % Simest 2 184 188 December 2023 0.50 % 0.50 % 0.50 % Simest 3 338 345 December 2023 0.50 % 0.50 % 0.50 % Simest 4 1,194 1,218 April 2027 0.50 % 0.50 % 0.50 % Total bank and other borrowings 30,645 33,418 Less: current portion 10,657 10,508 Total long-term portion $ 19,988 $ 22,910
Summary of Payments Obliged	As of March 31, 2022, the Company is obliged to make payments as follows (in thousands): As of March 31, 2022 2022 (remaining nine months) $ 8,124 2023 10,127 2024 6,143 2025 3,747 2026 2,355 2027 and thereafter 149 Total $ 30,645

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Mar. 31, 2022
Equity [Abstract]
Schedule of Accumulated Balances Related to Each Component of Accumulated Other Comprehensive Loss	The accumulated balances related to each component of accumulated other comprehensive loss are as follows (in thousands): Cumulative Foreign Currency Translation Adjustment Cumulative Net Unrealized Gain (Loss) on Marketable Securities, Net of Tax Accumulated Other Comprehensive Income (Loss) As of December 31, 2021 $ (2,046 ) $ 36 $ (2,010 ) Other comprehensive income (loss) (634 ) 5 (629 ) As of March 31, 2022 $ (2,680 ) $ 41 $ (2,639 ) Cumulative Foreign Currency Translation Adjustment Cumulative Net Unrealized Gain (Loss) on Marketable Securities, Net of Tax Accumulated Other Comprehensive Income (Loss) As of December 31, 2020 $ (2,836 ) $ 10 $ (2,826 ) Other comprehensive income (loss) 1,105 (4 ) 1,101 As of March 31, 2021 $ (1,731 ) $ 6 $ (1,725 )

Other Current and Long-Term L_2

Other Current and Long-Term Liabilities (Tables)	3 Months Ended
	Mar. 31, 2022
Other Liabilities Disclosure [Abstract]
Schedule of Other Current Liabilities	Other current liabilities consisted of the following (in thousands): As of March 31, As of December 31, 2022 2021 Liabilities for tax other than income tax $ 1,072 $ 1,210 VAT payables 49 476 Social security liabilities 380 522 Current tax liabilities 926 945 Accrued financial interest 156 139 Accrued contractual interests on Merger Convertible Notes 4,044 1,024 Capital leases 53 65 Other miscellaneous 2,133 3,893 Total other current liabilities $ 8,813 $ 8,274
Schedule of Other Long-term Liabilities	Other long-term liabilities consisted of the following (in thousands): As of March 31, As of December 31, 2022 2021 Warrant liability $ 355 $ 889 Interest rate swaps 12 35 Capital leases 113 129 Other miscellaneous 773 787 Total other long-term liabilities $ 1,253 $ 1,840

Geographic Information (Tables)

Geographic Information (Tables)	3 Months Ended
	Mar. 31, 2022
Segment Reporting [Abstract]
Summary of Revenue by Geographic Area	The following table sets forth revenue by geographic area for the three ended March 31, 2022 and 2021 (in thousands): Three Months Ended March 31, 2022 2021 United States $ 24,635 $ 5,121 India 21,176 11,718 Italy 16,509 16,087 Europe (excluding Italy) 7,001 1,418 South America 5,964 — Rest of the world 5,196 5,370 Total $ 80,481 $ 39,714 Three Months Ended March 31, 2022 2021 United States 30.6 % 12.9 % India 26.3 % 29.5 % Italy 20.5 % 40.5 % Europe (excluding Italy) 8.7 % 3.6 % South America 7.4 % 0.0 % Rest of the world 6.5 % 13.5 %
Summary of Long-lived Assets by Geographic Area	The following table sets forth long-lived assets by geographic area as of March 31, 2022 and December 31, 2021 (in thousands): As of March 31, As of December 31, 2022 2021 United States $ 10,339 $ 10,027 Italy 4,634 4,391 India 4,248 3,778 Rest of the world 603 615 Total $ 19,824 $ 18,811 As of March 31, As of December 31, 2022 2021 United States 52.2 % 53.3 % Italy 23.4 % 23.3 % India 21.4 % 20.1 % Rest of the world 3.0 % 3.3 %

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2022
Commitments And Contingencies Disclosure [Abstract]
Schedule of Future Minimum Lease Payments under Leasing Obligations	Future minimum lease payments under leasing obligations as of March 31, 2022 are as follows (in thousands): As of March 31, 2022 Operating Leases Capital Leases Total 2022 (remaining nine months) $ 1,111 $ 44 $ 1,155 2023 889 58 947 2024 753 58 811 2025 571 20 591 2026 343 — 343 2027 and thereafter 678 — 678 Total minimum lease payments $ 4,345 $ 180 $ 4,525
Schedule of Future Minimum Lease Payments under Capital Leases	Future minimum lease payment under capital leases as of March 31, 2022 consisted of the following (in thousands): As of March 31, 2022 Capital Leases Total payments $ 180 Less: interest portion 14 Net capital lease obligation $ 166 Less: current portion 53 Long term portion $ 113

Restricted Stock Units (Tables)

Restricted Stock Units (Tables) - Restricted Stock Units (RSUs)	3 Months Ended
	Mar. 31, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Summary of Outstanding RSUs	The following table sets forth the activity related to the number of outstanding RSUs for the three months ended March 31, 2022: Number of shares Weighted- average grant date fair value (per share) Non-vested as of December 31, 2021 4,374,021 $ 10.33 Vested (328,196 ) $ 10.34 Granted 450,700 $ 8.61 Cancelled (70,529 ) $ 10.39 Non-vested as of March 31, 2022 4,425,996 $ 10.15
Summary of RSUs Compensation Expense	RSUs compensation expense for the three months ended March 31, 2022 was $6.8 million, which was recorded as follows (in thousands): Three Months Ended March 31, 2022 2021 Research and development $ 1,020 $ 971 Sales and marketing 783 522 General and administrative 4,956 3,067 Total $ 6,759 $ 4,560

Income Taxes (Tables)

Income Taxes (Tables)	3 Months Ended
	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Schedule of Tax Expense and Effective Tax Rate Resulting from Operations	The tax expense and the effective tax rate resulting from operations were as follows (in thousands): Three Months Ended March 31, 2022 2021 Income (loss) before income taxes $ (12,481 ) $ (10,324 ) Income tax expense 691 34 Effective tax rate (5.54 %) (0.33 %)

Net Loss Per Share (Tables)

Net Loss Per Share (Tables)	3 Months Ended
	Mar. 31, 2022
Earnings Per Share [Abstract]
Schedule of Calculation of Basic and Diluted Net Loss Per Share	The following table sets forth the calculation of basic and diluted net loss per share during the period presented (in thousands, except share and per share data): Three Months Ended March 31, 2022 2021 Net loss $ (13,172 ) $ (10,358 ) Weighted average shares used to compute net loss per common share, basic and diluted 42,247,518 30,364,943 Net loss per common share, basic and diluted $ (0.31 ) $ (0.34 )

Transactions with Related Par_2

Transactions with Related Parties (Tables)	3 Months Ended
	Mar. 31, 2022
Related Party Transactions [Abstract]
Schedule of Expenses for Related Parties	The following table presents the expenses for transactions with related parties reported in the condensed consolidated statements of operations (in thousands): Three Months Ended March 31, 2022 2021 Research and development $ 10 $ 12 Sales and marketing 56 60 General and administrative 12 80 Financial expense, net — 44

Description of Organization a_2

Description of Organization and Business Operations - Additional Information (Details) - USD ($)	Aug. 30, 2021	Jul. 08, 2021	Jun. 01, 2021	Feb. 18, 2021	Mar. 31, 2022	Sep. 30, 2021	Sep. 30, 2021	Nov. 15, 2021	Jul. 01, 2021
mGage
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Acquisition date				Feb. 18, 2021	Feb. 18, 2021
Total purchase price consideration	$ 217,000,000		$ 218,000,000	$ 217,034,000
Cash consideration	199,200,000		$ 198,600,000	$ 199,200,000
Closing of business combination share consideration			1,600,000	1,600,000
Business combination, share price per share			$ 11.77
Business combination, purchase price			$ 18,800,000
Working capital adjustment	$ 997,000,000					$ 997,000	$ 997,000
mGage | PIPE Subscription Agreements
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Closing of business combination share consideration				8,400,000
Business combination, share price per share				$ 12.50
Business combination, purchase price				$ 200,000,000
MGage Europe Ltd
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Ownership percentage									100.00%
MGage SA DE SV
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Ownership percentage									100.00%
Bandyer Srl
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Cash consideration		$ 15,400,000
Kaleyra US Inc
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Ownership percentage								99.00%
Kaleyra Inc
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Ownership percentage								1.00%

Summary of Significant Accoun_3

Summary of Significant Accounting Policies - Additional Information (Details) $ / shares in Units, $ in Thousands	Jun. 01, 2021USD ($)$ / sharesshares	Feb. 18, 2021USD ($)$ / sharesshares	Mar. 31, 2022USD ($)Customer	Mar. 31, 2021USD ($)Customer	Dec. 31, 2021USD ($)Customer
Schedule Of Significant Accounting Policies [Line Items]
Total current assets			$ 183,920		$ 192,180
Total current liabilities			109,014		$ 111,440
Net assets current			74,900
Revenue			80,481	$ 39,714
Minimum
Schedule Of Significant Accounting Policies [Line Items]
Right-of-use asset			$ 3,000
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]			Other current assets
Lease liability			$ 3,000
Maximum
Schedule Of Significant Accounting Policies [Line Items]
Right-of-use asset			$ 4,000
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]			Other current assets
Lease liability			$ 4,000
Customers | Customer Concentration Risk | Revenue
Schedule Of Significant Accounting Policies [Line Items]
Concentration risk percentage			10.00%	10.00%
Number of customers | Customer			0	0
Customers | Customer Concentration Risk | Trade Receivables
Schedule Of Significant Accounting Policies [Line Items]
Concentration risk percentage			10.00%		10.00%
Number of customers | Customer			1		1
Customer 1 | Customer Concentration Risk | Trade Receivables
Schedule Of Significant Accounting Policies [Line Items]
Revenue			$ 10,200		$ 9,600
mGage
Schedule Of Significant Accounting Policies [Line Items]
Acquisition date		Feb. 18, 2021	Feb. 18, 2021
Business combination, purchase price	$ 18,800
Closing of business combination share consideration | shares	1,600,000	1,600,000
Business combination, share price per share | $ / shares	$ 11.77
mGage | PIPE Subscription Agreements
Schedule Of Significant Accounting Policies [Line Items]
Business combination, purchase price		$ 200,000
Closing of business combination share consideration | shares		8,400,000
Business combination, share price per share | $ / shares		$ 12.50
mGage | PIPE Subscription Agreements | Private Placements
Schedule Of Significant Accounting Policies [Line Items]
Business combination, purchase price		$ 105,000

Business Combinations - Additio

Business Combinations - Additional Information (Details) $ / shares in Units, € in Millions	Aug. 30, 2021USD ($)	Jul. 08, 2021USD ($)	Jul. 08, 2021EUR (€)	Jul. 07, 2021USD ($)	Jul. 07, 2021EUR (€)	Jun. 01, 2021USD ($)$ / sharesshares	Feb. 18, 2021USD ($)$ / sharesshares	Mar. 31, 2022USD ($)	Sep. 30, 2021USD ($)	Mar. 31, 2021USD ($)	Sep. 30, 2021USD ($)
Business Acquisition [Line Items]
Net Income (loss)								$ (13,172,000)		$ (10,358,000)
Amortization of intangible assets								$ 4,400,000		403,000
mGage
Business Acquisition [Line Items]
Acquisition date							Feb. 18, 2021	Feb. 18, 2021
Total purchase price consideration	$ 217,000,000					$ 218,000,000	$ 217,034,000
Cash consideration	199,200,000					$ 198,600,000	$ 199,200,000
Working capital adjustment	$ 997,000,000								$ 997,000		$ 997,000
Common stock consideration paid in shares | shares						1,600,000	1,600,000
Business combination, share price per share | $ / shares						$ 11.77
Closing price of common stock in the date of issuance						$ 18,800,000
Business Acquisition description								The Company will continue to evaluate certain assets, liabilities and tax estimates that are subject to change within the measurement period (up to one year from the acquisition date).
Increase (Decrease) in deferred tax liability									(1,900,000)
Increase in goodwill									5,900,000
Consolidated revenue								$ 32,100,000
Net Income (loss)								990,000,000,000
mGage | Pro-forma
Business Acquisition [Line Items]
Consolidated revenue								32,100,000		31,900,000
Net Income (loss)								990,000,000,000		(3,600,000)
mGage | General and Administrative Expenses
Business Acquisition [Line Items]
Acquisition related costs										5,500,000
mGage | Acquired Developed Technology
Business Acquisition [Line Items]
Decrease in intangible assets, net									$ (8,900,000)
mGage | PIPE Subscription Agreements
Business Acquisition [Line Items]
Common stock consideration paid in shares | shares							8,400,000
Business combination, share price per share | $ / shares							$ 12.50
Closing price of common stock in the date of issuance							$ 200,000,000
Bandyer
Business Acquisition [Line Items]
Total purchase price consideration		$ 15,333,000						15,400,000
Cash consideration		$ 13,300,000	€ 11.5	$ 15,400,000	€ 13
Increase (Decrease) in deferred tax liability								164,000
Increase in goodwill								164,000
Decrease in purchase consideration								$ 58,000
MGage and Bandyer | Pro-forma
Business Acquisition [Line Items]
Amortization of intangible assets										2,800,000
Amortization of intangible assets, net of related tax effect										1,000,000
Financial expenses										$ 3,500,000

Business Combinations - Summary

Business Combinations - Summary of Fair Value Amount Recognized for Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Aug. 30, 2021	Jul. 08, 2021	Jun. 01, 2021	Feb. 18, 2021
Of which:
Goodwill	$ 110,088	$ 110,465
mGage
Business Acquisition [Line Items]
Property and equipment, net						$ 8,450
Of which:
Customer relationships						76,256
Developed technology						30,033
Trade names						13,060
Deferred tax assets on loss carryforward						25,011
Goodwill						86,321
Accounts receivable and other current assets						29,996
Cash and cash equivalents						2,856
Total assets acquired						271,983
Deferred tax liabilities						32,284
Accounts payable and other current liabilities						22,665
Total liabilities assumed						54,949
Net assets acquired			$ 217,000		$ 218,000	$ 217,034
Bandyer
Business Acquisition [Line Items]
Property and equipment, net				$ 116
Of which:
Customer relationships				1,798
Developed technology				7,999
Goodwill				8,146
Accounts receivable and other current assets				671
Cash and cash equivalents				349
Other non current assets				21
Total assets acquired				19,100
Deferred tax liabilities				2,616
Accounts payable and other current liabilities				986
Long term portion of employee benefit obligation				126
Current portion of bank and other borrowings				39
Total liabilities assumed				3,767
Net assets acquired	$ 15,400			$ 15,333

Business Combinations - Summa_2

Business Combinations - Summary of Fair Value Amount Recognized for Assets Acquired and Liabilities Assumed (Parenthetical) (Details)	Jul. 08, 2021	Feb. 18, 2021
Customer Relationships | mGage | Minimum
Business Acquisition [Line Items]
Estimated useful life		7 years
Customer Relationships | mGage | Maximum
Business Acquisition [Line Items]
Estimated useful life		9 years
Customer Relationships | Bandyer
Business Acquisition [Line Items]
Estimated useful life	8 years
Developed Technology | mGage
Business Acquisition [Line Items]
Estimated useful life		6 years
Developed Technology | Bandyer
Business Acquisition [Line Items]
Estimated useful life	15 years
Trade Names | mGage
Business Acquisition [Line Items]
Estimated useful life		8 years

Business Combinations - Unaudit

Business Combinations - Unaudited Supplemental Pro-forma Information (Details) - MGage and Bandyer - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Business Acquisition [Line Items]
Revenue	$ 80,481	$ 72,340
Net loss	$ (13,172)	$ (13,980)
Net loss per common share, basic and diluted	$ (0.31)	$ (0.35)
Weighted-average shares used in computing net loss per common share, basic and diluted	42,247,518	40,364,943

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Recurring Basis - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Assets:
Total Assets	$ 7,294	$ 6,236
Liabilities:
Total Liabilities	367	924
Mutual Fund
Assets:
Total Assets	599	602
Interest Rate Swap
Liabilities:
Total Liabilities	12	35
Warrant Liability
Liabilities:
Total Liabilities	355	889
Certificates of Deposit
Assets:
Total Assets	6,695	5,634
Level 1
Assets:
Total Assets	599	602
Level 1 | Mutual Fund
Assets:
Total Assets	599	602
Level 2
Assets:
Total Assets	6,695	5,634
Liabilities:
Total Liabilities	367	924
Level 2 | Interest Rate Swap
Liabilities:
Total Liabilities	12	35
Level 2 | Warrant Liability
Liabilities:
Total Liabilities	355	889
Level 2 | Certificates of Deposit
Assets:
Total Assets	$ 6,695	$ 5,634

Fair Value Measurements - Sum_2

Fair Value Measurements - Summary of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Parenthetical) (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Minimum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Short term investments maturity term	4 months	4 months
Maximum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Short term investments maturity term	12 months	12 months

Fair Value Measurements - Sum_3

Fair Value Measurements - Summary of Values of Short-term Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Mutual Fund
Schedule Of Available For Sale Securities [Line Items]
Short-term investments, Cost	$ 594	$ 572
Short-term investments, Unrealized Gains	5	30
Short-term investments, Fair Value	599	602
Certificates of Deposit
Schedule Of Available For Sale Securities [Line Items]
Short-term investments, Cost	6,695	5,634
Short-term investments, Fair Value	$ 6,695	$ 5,634

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Transfers into or out of level 2 or level 3	$ 0	$ 0

Derivative Financial Instrume_3

Derivative Financial Instruments - Additional Information (Details) € in Millions, $ in Millions	Mar. 31, 2022USD ($)	Mar. 31, 2022EUR (€)	Dec. 31, 2021USD ($)	Dec. 31, 2021EUR (€)
Interest Rate Swap | Not Designated as Hedging Instruments
Derivative Instruments Gain Loss [Line Items]
Derivative, notional amount	$ 5.5	€ 4.9	$ 6.6	€ 5.8

Derivative Financial Instrume_4

Derivative Financial Instruments - Schedule of Gain (Losses) in Condensed Consolidated Statement of Operations Related to Derivative Contracts (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Interest Rate Swap | Financial Income (Expense), Net
Derivative Instruments Gain Loss [Line Items]
Gain loss on interest rate derivative instruments	$ 22	$ 13

Derivative Financial Instrume_5

Derivative Financial Instruments - Schedule of Fair Value Derivative Contracts Reported in Condensed Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Interest Rate Swap | Other Long Term Liabilities | Not Designated as Hedging Instruments
Derivative Instruments Gain Loss [Line Items]
Derivative on interest rate	$ 12	$ 35

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets, Net- Summary of Goodwill (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]
Balance as of December 31, 2021	$ 110,465
Purchase price adjustment in the period	96
Effect of exchange rate	(473)
Balance as of March 31, 2022	$ 110,088

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets, Net- Summary of Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Acquired Finite Lived Intangible Assets [Line Items]
Gross	$ 139,913	$ 140,399
Accumulated Amortization	19,338	15,003
Net	120,575	125,396
Developed Technology
Acquired Finite Lived Intangible Assets [Line Items]
Gross	40,190	40,416
Accumulated Amortization	6,959	5,393
Net	33,231	35,023
Customer Relationships
Acquired Finite Lived Intangible Assets [Line Items]
Gross	86,555	86,792
Accumulated Amortization	10,956	8,597
Net	75,599	78,195
Trade Names
Acquired Finite Lived Intangible Assets [Line Items]
Gross	13,038	13,060
Accumulated Amortization	1,358	952
Net	11,680	12,108
Patent
Acquired Finite Lived Intangible Assets [Line Items]
Gross	130	131
Accumulated Amortization	65	61
Net	$ 65	$ 70

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets, Net - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Goodwill And Intangible Assets Disclosure [Abstract]
Amortization expense	$ 4,400,000	$ 403,000

Goodwill and Intangible Asset_6

Goodwill and Intangible Assets, Net - Summary of Estimated Future Amortization Expense (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Goodwill And Intangible Assets Disclosure [Abstract]
2022 (remaining nine months)	$ 12,814
2023	16,717
2024	16,615
2025	16,542
2026	16,468
2027 and thereafter	41,419
Net	$ 120,575	$ 125,396

Other Assets - Schedule of Othe

Other Assets - Schedule of Other Current Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Other Assets [Abstract]
Receivables from suppliers	$ 512	$ 483
Credit for tax other than income tax	481	675
Income tax receivables	230	1,195
Other receivables	439	246
Total other current assets	$ 1,662	$ 2,599

Other Assets - Schedule of Ot_2

Other Assets - Schedule of Other Long-Term Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Other Assets [Abstract]
Non-current income tax credit (advances and tax reduced at sources)	$ 960	$ 53
Miscellaneous	504	346
Total other long-term assets	$ 1,464	$ 399

Bank and Other Borrowings - Add

Bank and Other Borrowings - Additional Information (Details)	Aug. 03, 2021	Apr. 15, 2021USD ($)	Mar. 31, 2022USD ($)	Mar. 31, 2021USD ($)	Dec. 31, 2021USD ($)	Sep. 15, 2021USD ($)	Sep. 15, 2021EUR (€)	Apr. 15, 2021EUR (€)
Bank and Other Borrowings [Line Items]
Current portion of bank and other borrowings, credit line facilities			$ 15,300,000		$ 15,800,000
Current portion of bank and other borrowings			10,657,000		10,508,000
Lines of credit			4,649,000		5,256,000
Line of credit facility, maximum borrowing capacity			6,600,000		6,700,000
Line of credit facility, used			$ 4,600,000		$ 5,300,000
Weighted average interest rate			1.18%
Interest expense			$ 156,000	$ 190,000
New General Unsecured Loan Agreement
Bank and Other Borrowings [Line Items]
Debt instrument term		6 years
Debt instrument, payment terms			The loan has a duration of six (6) years starting from the date of disbursement and is to be repaid in half-yearly installments starting after a two-year pre-amortization period.
New General Unsecured Loan Agreement | Simest S.p.A
Bank and Other Borrowings [Line Items]
Debt instrument face amount		$ 3,600,000						€ 3,000,000
New General Unsecured Loan Agreement | Fund for Integrated Promotion
Bank and Other Borrowings [Line Items]
Debt instrument face amount		505,000				$ 208,000	€ 176,000	422,000
New General Unsecured Loan Agreement | Fund 394/81
Bank and Other Borrowings [Line Items]
Debt instrument face amount		$ 3,100,000				$ 1,300,000	€ 1,100,000	€ 2,600,000
Debt instrument, subsidized interest rate		0.055%						0.055%
Debt instrument, reference interest rate		0.55%						0.55%
Minimum
Bank and Other Borrowings [Line Items]
Interest variable rates			0.50%
Maximum
Bank and Other Borrowings [Line Items]
Interest variable rates			2.20%
Kaleyra Inc | Unsecured Loan Agreement | Intesa San Paolo S.p.A.
Bank and Other Borrowings [Line Items]
Percentage of incremental interest rate on future payments of interest	0.50%		0.50%
Debt instrument subject to early reimbursement			$ 0

Bank and Other Borrowings - Sum

Bank and Other Borrowings - Summary of Long-term Bank and Other Borrowings (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Bank and Other Borrowings [Line Items]
Total Financial Liabilities	$ 30,645	$ 33,418
Less: current portion	10,657	10,508
Total long-term portion	19,988	22,910
UniCredit S.p.A. (Line A Tranche (1)
Bank and Other Borrowings [Line Items]
Total Financial Liabilities	$ 1,956	$ 2,330
Maturity	2023-07
Contractual Interest Rate	Euribor 3 months + 3.10%
Contractual Interest Rate, Percentage	3.10%
Interest Nominal Rate	2.80%	2.80%
UniCredit S.p.A. (Line A Tranche (2)
Bank and Other Borrowings [Line Items]
Total Financial Liabilities	$ 97	$ 113
Maturity	2023-11
Contractual Interest Rate	Euribor 3 months + 3.10%
Contractual Interest Rate, Percentage	3.10%
Interest Nominal Rate	2.80%	2.80%
UniCredit S.p.A. (Line B)
Bank and Other Borrowings [Line Items]
Total Financial Liabilities	$ 2,061	$ 2,337
Maturity	2024-05
Contractual Interest Rate	Euribor 3 months + 2.90%
Contractual Interest Rate, Percentage	2.90%
Interest Nominal Rate	2.60%	2.60%
UniCredit S.p.A. (Line C)
Bank and Other Borrowings [Line Items]
Total Financial Liabilities	$ 1,546	$ 1,833
Maturity	2023-08
Contractual Interest Rate	Euribor 3 months + 3.90%
Contractual Interest Rate, Percentage	3.90%
Interest Nominal Rate	3.44%	3.33%
Intesa Sanpaolo S.p.A. (Line 1)
Bank and Other Borrowings [Line Items]
Total Financial Liabilities	$ 142	$ 290
Maturity	2022-04
Contractual Interest Rate	Euribor 3 months + 2.30%
Contractual Interest Rate, Percentage	2.30%
Interest Nominal Rate	1.84%	1.73%
Intesa Sanpaolo S.p.A. (Line 2)
Bank and Other Borrowings [Line Items]
Total Financial Liabilities	$ 2,544	$ 2,872
Maturity	2024-04
Contractual Interest Rate	Euribor 3 months + 3.10%
Contractual Interest Rate, Percentage	3.10%
Interest Nominal Rate	2.64%	2.53%
Intesa Sanpaolo S.p.A. (Line 3)
Bank and Other Borrowings [Line Items]
Total Financial Liabilities	$ 8,781	$ 8,961
Maturity	2026-06
Contractual Interest Rate	Euribor 3 months + 2.15%
Contractual Interest Rate, Percentage	2.15%
Interest Nominal Rate	1.69%	1.58%
Intesa Sanpaolo S.p.A. (Line 4)
Bank and Other Borrowings [Line Items]
Total Financial Liabilities	$ 5,519	$ 5,927
Maturity	2026-07
Contractual Interest Rate	Euribor 3 months + 2.20%
Contractual Interest Rate, Percentage	2.20%
Interest Nominal Rate	1.74%	1.63%
Monte dei Paschi di Siena S.p.A. (Line 1)
Bank and Other Borrowings [Line Items]
Total Financial Liabilities	$ 19	$ 76
Maturity	2022-04
Contractual Interest Rate, Percentage	0.95%
Interest Nominal Rate	0.95%	0.95%
Monte dei Paschi di Siena S.p.A. (Line 2)
Bank and Other Borrowings [Line Items]
Total Financial Liabilities	$ 1,110	$ 1,132
Maturity	2023-06
Contractual Interest Rate, Percentage	1.50%
Interest Nominal Rate	1.50%	1.50%
Banco BPM S.p.A. (Line 1)
Bank and Other Borrowings [Line Items]
Total Financial Liabilities	$ 486	$ 593
Maturity	2023-06
Contractual Interest Rate	Euribor 3 months + 2.00%
Contractual Interest Rate, Percentage	2.00%
Interest Nominal Rate	2.00%	2.00%
Banco BPM S.p.A. (Line 3)
Bank and Other Borrowings [Line Items]
Total Financial Liabilities	$ 4,483	$ 5,014
Maturity	2024-09
Contractual Interest Rate	Euribor 3 months + 3.00%
Contractual Interest Rate, Percentage	3.00%
Interest Nominal Rate	2.54%	2.43%
Simest 1
Bank and Other Borrowings [Line Items]
Total Financial Liabilities	$ 185	$ 189
Maturity	2023-12
Contractual Interest Rate, Percentage	0.50%
Interest Nominal Rate	0.50%	0.50%
Simest 2
Bank and Other Borrowings [Line Items]
Total Financial Liabilities	$ 184	$ 188
Maturity	2023-12
Contractual Interest Rate, Percentage	0.50%
Interest Nominal Rate	0.50%	0.50%
Simest 3
Bank and Other Borrowings [Line Items]
Total Financial Liabilities	$ 338	$ 345
Maturity	2023-12
Contractual Interest Rate, Percentage	0.50%
Interest Nominal Rate	0.50%	0.50%
Simest 4
Bank and Other Borrowings [Line Items]
Total Financial Liabilities	$ 1,194	$ 1,218
Maturity	2027-04
Contractual Interest Rate, Percentage	0.50%
Interest Nominal Rate	0.50%	0.50%

Bank and Other Borrowings - S_2

Bank and Other Borrowings - Summary of Payments Obliged (Details) $ in Thousands	Mar. 31, 2022USD ($)
Bank And Other Borrowings [Abstract]
2022 (remaining nine months)	$ 8,124
2023	10,127
2024	6,143
2025	3,747
2026	2,355
2027 and thereafter	149
Total	$ 30,645

Debt for Forward Share Purcha_2

Debt for Forward Share Purchase Agreements - Additional Information (Details) - USD ($)	Mar. 29, 2021	Feb. 25, 2021	Mar. 02, 2021	Dec. 31, 2020	Mar. 31, 2022
Debt Instrument [Line Items]
Business combination, obligation					$ 125,000
Forward Share Purchase Agreement
Debt Instrument [Line Items]
Debt Instrument, carrying amount					$ 0
Forward Share Purchase Agreement | Nomura Global Financial Products | Kaleyra Inc
Debt Instrument [Line Items]
Cash consideration		$ 17,000,000
Business combination contingent consideration liability except accrued interest payable		$ 0
Forward Share Purchase Agreement | Open Market
Debt Instrument [Line Items]
Business combination, shares acquired				43,930
Forward Share Purchase Agreement | Open Market | Third Yakira Amendment
Debt Instrument [Line Items]
Business combination, shares acquired	219		219
Business combination, obligation	$ 0
Forward Share Purchase Agreement | Open Market | Third Yakira Amendment | Minimum
Debt Instrument [Line Items]
Business combination, share price per share			$ 11

Notes Payable - Additional Info

Notes Payable - Additional Information (Details)	Jun. 02, 2021USD ($)	Feb. 04, 2021USD ($)shares	May 01, 2020USD ($)shares	Apr. 16, 2020USD ($)d$ / shares	Nov. 25, 2019USD ($)	Mar. 31, 2022USD ($)$ / sharesshares	Dec. 31, 2021USD ($)shares	Jun. 01, 2021USD ($)
Debt Instrument [Line Items]
Common stock, shares issued | shares						45,159,891	44,831,695
Common stock value						$ 4,000	$ 4,000
Warrants issued | shares			0
Long-term portion of notes payable						190,625,000	$ 190,147,000
Cowen Investments and Chardan
Debt Instrument [Line Items]
Debt instrument face amount			$ 2,700,000
Aggregate settlement of investment shares | shares			440,595
Cowen Investments
Debt Instrument [Line Items]
Debt instrument face amount			$ 2,300,000
Aggregate settlement of investment shares | shares			374,506
Conversion of common stock shares | shares		303,171	303,171
Business combination contingent consideration liability except accrued interest payable		$ 0
Conversion of Note, shares | shares		303,171	303,171
Chardan
Debt Instrument [Line Items]
Debt instrument face amount			$ 405,000			405,000
Aggregate settlement of investment shares | shares			66,089
Loss on settlement			$ (200,000)
Conversion of common stock shares | shares			53,501
Conversion of Note, shares | shares			53,501
Chardan | Other Current Liabilities
Debt Instrument [Line Items]
Accrued interest						39,000
Cowen and Company, LLC and Chardan Capital markets, LLC
Debt Instrument [Line Items]
Business combination transaction related costs				$ 5,400,000
Resale Registration Statement | Cowen and Company, LLC and Chardan Capital markets, LLC
Debt Instrument [Line Items]
Common stock value				$ 2,700,000
Warrants exercise price | $ / shares				$ 0.01
Beneficial ownership limitation percentage				4.99%
Settlement shares, threshold percentage				15.00%
Settlement shares, trailing days | d				10
Non-convertible Notes
Debt Instrument [Line Items]
Notes payable						$ 0
Convertible Notes
Debt Instrument [Line Items]
Debt instrument face amount								$ 200,000,000
Debt instrument term						5 years
Interest rate						6.125%
Conversion of common stock shares | shares						11,851,852
Debt issuance costs								$ 11,400,000
Interest Nominal Rate						6.125%
Debt instrument, frequency of fee						semi-annually
Debt instrument, commencement date						Dec. 1, 2021
Conversion of Note, shares | shares						11,851,852
Debt instrument, convertible price per share | $ / shares						$ 16.875
Debt instrument interest rate terms						i) the first anniversary of the issuance of the Merger Convertible Notes, subject to a holder’s prior right to convert, if the last reported sale price of the Kaleyra common stock exceeds 150% of the conversion price for at least 20 trading days during the period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter and (ii) the second anniversary of the issuance of the Merger Convertible Notes, subject to a holder’s prior right to convert, if the last reported sale price of the Kaleyra common stock exceeds 130% of the conversion price for at least 20 trading days during the period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter.
Derivative liabilities						$ 0
Outstanding amount of convertible notes						190,200,000
Contractual interest expense						3,000,000
Amortization of debt issuance costs						$ 478,000
Convertible Notes | First Anniversary
Debt Instrument [Line Items]
Convertible notes, threshold percentage						150.00%
Convertible Notes | Second Anniversary
Debt Instrument [Line Items]
Convertible notes, threshold percentage						130.00%
Convertible Notes | Resale Registration Statement | Cowen and Company, LLC and Chardan Capital markets, LLC
Debt Instrument [Line Items]
Convertible notes				$ 2,700,000
Debt instrument term				3 years
Repaid earlier interest rate issuance term				1 year
Repaid after interest rate issuance term				2 years
Interest rate				5.00%
Convertible notes, threshold percentage				5.00%
Convertible notes, trailing days | d				10
Interest Nominal Rate				5.00%
Convertible Notes
Debt Instrument [Line Items]
Outstanding principal balance						50.00%
Proceeds of equity financing in an aggregate gross amount						$ 105,000,000
Common stock, shares issued | shares						8,400,000
Common stock issued per share | $ / shares						$ 12.50
Esse Effe S.p.A
Debt Instrument [Line Items]
Cash consideration					$ 6,000,000
Debt instrument face amount	$ 3,800,000
Debt instrument, accrued interest	84,000,000
Esse Effe S.p.A | Convertible Notes
Debt Instrument [Line Items]
Business combination convertible notes						$ 0
Esse Effe S.p.A | Convertible Notes
Debt Instrument [Line Items]
Notes payable						3,000,000
Accrued interest						176,000
Maya
Debt Instrument [Line Items]
Cash consideration					$ 1,500,000
Maya | Convertible Notes
Debt Instrument [Line Items]
Business combination convertible notes						0
Maya | Convertible Notes
Debt Instrument [Line Items]
Notes payable						750,000
Accrued interest						44,000
Debt instrument face amount	3,800,000
Debt instrument, accrued interest	$ 84,000,000
Wilmington Trust National Association | Convertible Notes
Debt Instrument [Line Items]
Debt issuance costs						$ 200,000,000

Accumulated Accumulated Other C

Accumulated Accumulated Other Comprehensive Loss - Schedule of Accumulated Balances Related to Each Component of Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cumulative Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	$ (2,046)	$ (2,836)
Other comprehensive income (loss)	(634)	1,105
Ending balance	(2,680)	(1,731)
Cumulative Net Unrealized Gain (Loss) on Marketable Securities, Net of Tax
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	36	10
Other comprehensive income (loss)	5	(4)
Ending balance	41	6
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	(2,010)	(2,826)
Other comprehensive income (loss)	(629)	1,101
Ending balance	$ (2,639)	$ (1,725)

Preference Shares Liabilities -

Preference Shares Liabilities - Additional Information (Details)	Aug. 31, 2020USD ($)Installment	Mar. 09, 2020	Mar. 31, 2022USD ($)	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Nov. 30, 2020USD ($)
Solutions Infini Purchase Agreement
Preference Shares Liabilities [Line Items]
Preference share liabilities			$ 0	$ 0
Modification of 2018 Solutions Infini Purchase Agreement | Solutions Infini
Preference Shares Liabilities [Line Items]
Performance bonuses to be paid date, year		2020
Modification of 2018 Solutions Infini Purchase Agreement | Preferred Stock | Solutions Infini
Preference Shares Liabilities [Line Items]
Preference shares, performance bonuses	$ 1,400,000		0			$ 883,000
Number of installments | Installment	2
Payment of bonus compensation			$ 1,200,000
Modification of 2018 Solutions Infini Purchase Agreement | COVID-19 | Preferred Stock | Solutions Infini
Preference Shares Liabilities [Line Items]
Preference shares, performance bonuses					$ 3,500,000

Other Current and Long-Term L_3

Other Current and Long-Term Liabilities - Other Current Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Other Liabilities Current [Abstract]
Liabilities for tax other than income tax	$ 1,072	$ 1,210
VAT payables	49	476
Social security liabilities	380	522
Current tax liabilities	926	945
Accrued financial interest	156	139
Accrued contractual interests on Merger Convertible Notes	4,044	1,024
Capital leases	$ 53	$ 65
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Total other current liabilities	Total other current liabilities
Other miscellaneous	$ 2,133	$ 3,893
Total other current liabilities	$ 8,813	$ 8,274

Other Current and Long-Term L_4

Other Current and Long-Term Liabilities - Other Long-Term Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Other Liabilities Noncurrent [Line Items]
Warrant liability	$ 355	$ 889
Capital leases	$ 113	$ 129
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Total other long-term liabilities	Total other long-term liabilities
Other miscellaneous	$ 773	$ 787
Total other long-term liabilities	1,253	1,840
Interest Rate Swap
Other Liabilities Noncurrent [Line Items]
Interest rate swaps	$ 12	$ 35

Geographic Information - Summar

Geographic Information - Summary of Revenue by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting Information [Line Items]
Revenue	$ 80,481	$ 39,714
Italy
Segment Reporting Information [Line Items]
Revenue	$ 16,509	$ 16,087
Italy | Geographic Concentration Risk | Revenue
Segment Reporting Information [Line Items]
Concentration risk percentage	20.50%	40.50%
India
Segment Reporting Information [Line Items]
Revenue	$ 21,176	$ 11,718
India | Geographic Concentration Risk | Revenue
Segment Reporting Information [Line Items]
Concentration risk percentage	26.30%	29.50%
United States
Segment Reporting Information [Line Items]
Revenue	$ 24,635	$ 5,121
United States | Geographic Concentration Risk | Revenue
Segment Reporting Information [Line Items]
Concentration risk percentage	30.60%	12.90%
Europe (excluding Italy)
Segment Reporting Information [Line Items]
Revenue	$ 7,001	$ 1,418
Europe (excluding Italy) | Geographic Concentration Risk | Revenue
Segment Reporting Information [Line Items]
Concentration risk percentage	8.70%	3.60%
South America
Segment Reporting Information [Line Items]
Revenue	$ 5,964
South America | Geographic Concentration Risk | Revenue
Segment Reporting Information [Line Items]
Concentration risk percentage	7.40%	0.00%
Rest of the World
Segment Reporting Information [Line Items]
Revenue	$ 5,196	$ 5,370
Rest of the World | Geographic Concentration Risk | Revenue
Segment Reporting Information [Line Items]
Concentration risk percentage	6.50%	13.50%

Geographic Information - Summ_2

Geographic Information - Summary of Long-lived Assets by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Long-lived assets	$ 19,824	$ 18,811
Italy
Segment Reporting Information [Line Items]
Long-lived assets	$ 4,634	$ 4,391
Italy | Geographic Concentration Risk | Long-Lived Assets
Segment Reporting Information [Line Items]
Long-lived assets, Percentage	23.40%	23.30%
India
Segment Reporting Information [Line Items]
Long-lived assets	$ 4,248	$ 3,778
India | Geographic Concentration Risk | Long-Lived Assets
Segment Reporting Information [Line Items]
Long-lived assets, Percentage	21.40%	20.10%
United States
Segment Reporting Information [Line Items]
Long-lived assets	$ 10,339	$ 10,027
United States | Geographic Concentration Risk | Long-Lived Assets
Segment Reporting Information [Line Items]
Long-lived assets, Percentage	52.20%	53.30%
Rest of the World
Segment Reporting Information [Line Items]
Long-lived assets	$ 603	$ 615
Rest of the World | Geographic Concentration Risk | Long-Lived Assets
Segment Reporting Information [Line Items]
Long-lived assets, Percentage	3.00%	3.30%

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Other Commitments [Line Items]
Operating lease, rent expense	$ 420,000	$ 192,000
Amount of contingent liabilities payable	125,000
Provision for contingent liabilities	$ 0
Milan office
Other Commitments [Line Items]
Operating lease, option to renew	true
Operating lease, renewal term	6 years

Commitments and Contingencies_2

Commitments and Contingencies - Schedule of Future Minimum Lease Payments under Leasing Obligations (Details) $ in Thousands	Mar. 31, 2022USD ($)
Operating Lease Liabilities Payments Due [Abstract]
Operating leases, 2022 (remaining nine months)	$ 1,111
Operating leases, 2023	889
Operating leases, 2024	753
Operating leases, 2025	571
Operating leases, 2026	343
Operating leases, 2027 and thereafter	678
Total minimum lease payments	4,345
Capital leases, 2022 (remaining nine months)	44
Capital leases, 2023	58
Capital leases, 2024	58
Capital leases, 2025	20
Total minimum capital lease payments	180
2022 (remaining nine months)	1,155
2023	947
2024	811
2025	591
2026	343
2027 and thereafter	678
Total minimum lease payments	$ 4,525

Commitments and Contingencies_3

Commitments and Contingencies - Schedule of Future Minimum Lease Payments under Capital Leases (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Operating Lease Liabilities Payments Due [Abstract]
Total payments	$ 180
Less: interest portion	14
Net capital lease obligation	166
Less: current portion	53	$ 65
Long term portion	$ 113	$ 129

Restricted Stock Units - Additi

Restricted Stock Units - Additional Information (Details) - Restricted Stock Units (RSUs) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost	$ 22,700
Unrecognized compensation cost weighted-average remaining period	1 year 3 months 3 days
Compensation expense	$ 6,759	$ 4,560

Restricted Stock Units - Summar

Restricted Stock Units - Summary of Outstanding RSUs (Details) - Restricted Stock Units (RSUs)	3 Months Ended
	Mar. 31, 2022$ / sharesshares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares, Non-vested as of December 31, 2021 | shares	4,374,021
Number of shares, Shares vested | shares	(328,196)
Number of shares, Shares granted | shares	450,700
Number of shares, Shares cancelled | shares	(70,529)
Number of shares, Non-vested as of March 31 2022 | shares	4,425,996
Weighted-average grant date fair value (per share), Non-vested as of December 31, 2020 | $ / shares	$ 10.33
Weighted-average grant date fair value (per share), Vested | $ / shares	10.34
Weighted-average grant date fair value (per share), Granted | $ / shares	8.61
Weighted-average grant date fair value (per share), Cancelled | $ / shares	10.39
Weighted-average grant date fair value (per share), Non-vested as of September 30, 2021 | $ / shares	$ 10.15

Restricted Stock Units - Summ_2

Restricted Stock Units - Summary of RSUs Compensation Expense (Details) - Restricted Stock Units (RSUs) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total	$ 6,759	$ 4,560
Research and Development
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total	1,020	971
Sales and Marketing
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total	783	522
General and Administrative
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total	$ 4,956	$ 3,067

Income Taxes - Schedule of Tax

Income Taxes - Schedule of Tax Expense and Effective Tax Rate Resulting from Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Tax Disclosure [Abstract]
Income (loss) before income taxes	$ (12,481)	$ (10,324)
Income tax expense	$ 691	$ 34
Effective tax rate	(5.54%)	(0.33%)

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($) $ in Millions	Mar. 31, 2022	Mar. 31, 2021
Income Tax Disclosure [Abstract]
Valuation allowance	$ 37.9	$ 15.6

Warrants - Additional Informati

Warrants - Additional Information (Details) - USD ($)	Aug. 24, 2021	Mar. 31, 2022	Mar. 31, 2021
Warrant
Class Of Warrant Or Right [Line Items]
Warrants exercisable price per share		$ 11.50
Warrant agreement date		Dec. 12, 2017
Number of fractional shares issued upon exercise of warrants		0
Period after business combination when warrants become exercisable		30 days
Warrants exercisable expiration period after completion of business combination		5 years
Redemption price per warrant		$ 0.01
Minimum period of prior written notice of redemption of warrants		30 days
Minimum price per share required for redemption of warrants		$ 18
Warrants redemption covenant, threshold trading days		20 days
Warrants redemption covenant, threshold consecutive trading days		30 days
Increase in other long term liabilities			$ 534,000
Decrease in additional paid in capital,			344,000
Increase in financial expense net			$ 190,000
Change in fair value of private placement warrants		$ 534,000
Warrants exercise price		$ 11.50
Warrants or rights outstanding		5,440,662
Warrant Repurchase Agreements
Class Of Warrant Or Right [Line Items]
Warrants exercisable price per share	$ 3.25
Aggregate amount of shares that can be purchased by warrants	1,684,470
Warrants exercise price	$ 3.25
Aggregate purchase price of warrants	$ 5,500,000

Net Loss Per Share - Schedule o

Net Loss Per Share - Schedule of Calculation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Net loss	$ (13,172)	$ (10,358)
Weighted-average shares used in computing net loss per common share, basic and diluted	42,247,518	30,364,943
Net loss per common share, basic and diluted	$ (0.31)	$ (0.34)

Net Loss Per Share - Additional

Net Loss Per Share - Additional Information (Details) - shares	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Weighted-average number of outstanding shares of common stock excluded from calculation of diluted net loss per share	9,854,005	12,704,582

Transactions with Related Par_3

Transactions with Related Parties - Additional Information (Details)	Aug. 31, 2020USD ($)Installment	Mar. 31, 2022USD ($)	Mar. 31, 2021USD ($)	Mar. 31, 2020USD ($)Installment	Jun. 02, 2021USD ($)	Feb. 03, 2021USD ($)	Nov. 30, 2020USD ($)
Related Party Transaction [Line Items]
Remaining outstanding obligations		$ 0
Preferred Stock | Modification of 2018 Solutions Infini Purchase Agreement | Solutions Infini
Related Party Transaction [Line Items]
Payment of bonus compensation		1,200,000
Number of installments | Installment	2
Preference shares, performance bonuses	$ 1,400,000	0					$ 883,000
Studio Legale Chiomenti | Legal Services
Related Party Transaction [Line Items]
Cost incurred for related party services		12,000	$ 80,000
Executive Managers | Modification of 2018 Solutions Infini Purchase Agreement | Solutions Infini
Related Party Transaction [Line Items]
Payment of bonus compensation	$ 1,400,000			$ 3,500,000			$ 883,000
Number of installments | Installment				2
Executive Managers | Preferred Stock | Modification of 2018 Solutions Infini Purchase Agreement | Solutions Infini
Related Party Transaction [Line Items]
Preference shares, performance bonuses						$ 1,200,000
Esse Effe and Maya
Related Party Transaction [Line Items]
Notes payable outstanding principal amount due		0			$ 3,800,000
Alessandra Levy | Kaleyra S.p.A
Related Party Transaction [Line Items]
Cost incurred for related party services		56,000	60,000
Pietro Calogero | Kaleyra S.p.A
Related Party Transaction [Line Items]
Cost incurred for related party services		$ 10,000	$ 12,000
Accrued Interest | Esse Effe and Maya
Related Party Transaction [Line Items]
Notes payable outstanding principal amount due					$ 84,000

Transactions with Related Par_4

Transactions with Related Parties - Schedule of Expenses for Related Parties (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Research and Development
Related Party Transaction [Line Items]
Expenses for related parties	$ 10	$ 12
Sales and Marketing
Related Party Transaction [Line Items]
Expenses for related parties	56	60
General and Administrative Expenses
Related Party Transaction [Line Items]
Expenses for related parties	$ 12	80
Financial Expense, Net
Related Party Transaction [Line Items]
Expenses for related parties		$ 44

Revenue - Additional Informatio

Revenue - Additional Information (Details) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2022USD ($)	Mar. 31, 2021	Dec. 31, 2021USD ($)
Disaggregation Of Revenue [Abstract]
Number of performance obligations	1	1
Revenue from usage-based fees in total revenue	94.00%	98.00%
Subscription-based fee contractual period	1 year
Revenue from term-based fees in total revenue	6.00%	2.00%
Deferred revenue	$ 6.8		$ 9.6
Deferred revenue, revenue recognized			$ 3.9