0001514416-22-000101 | 10-Q | XBRL Viewer

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Cover - shares	3 Months Ended
Cover - shares	Mar. 31, 2022	Apr. 29, 2022
Entity Information [Line Items]
Document Type	10-Q
Document Annual Report	true
Document Period End Date	Mar. 31, 2022
Document Transition Report	false
Entity File Number	001-38285
Entity Registrant Name	BANDWIDTH INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	56-2242657
Entity Address, Address Line One	900 Main Campus Drive
Entity Address, City or Town	Raleigh
Entity Address, State or Province	NC
Entity Address, Postal Zip Code	27606
City Area Code	(800)
Local Phone Number	808-5150
Title of 12(b) Security	Class A Common Stock, par value $0.001 per share
Trading Symbol	BAND
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Central Index Key	0001514416
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q1
Amendment Flag	false
Class A voting common stock
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		23,312,016
Class B voting common stock
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		1,965,170

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 316,008	$ 331,453
Restricted cash	981	836
Accounts receivable, net of allowance for doubtful accounts	68,827	61,572
Deferred costs	3,315	3,204
Prepaid expenses and other current assets	24,166	15,820
Total current assets	413,297	412,885
Property, plant and equipment, net	68,553	69,604
Operating right-of-use asset, net	15,419	14,061
Intangible assets, net	202,502	211,217
Deferred costs, non-current	4,853	4,676
Other long-term assets	11,502	8,673
Goodwill	338,070	344,423
Total assets	1,054,196	1,065,539
Current liabilities:
Accounts payable	8,943	9,142
Accrued expenses and other current liabilities	65,480	65,921
Current portion of deferred revenue	6,469	6,248
Advanced billings	6,617	6,380
Operating lease liability, current	7,208	5,807
Total current liabilities	94,717	93,498
Other liabilities	7,111	6,018
Operating lease liability, net of current portion	10,711	10,958
Deferred revenue, net of current portion	8,029	7,634
Deferred tax liability	46,414	48,396
Convertible senior notes	635,727	486,440
Total liabilities	802,709	652,944
Stockholders’ equity:
Class A and Class B common stock	25	25
Additional paid-in capital	349,949	502,477
Accumulated deficit	(74,931)	(76,867)
Accumulated other comprehensive loss	(23,556)	(13,040)
Total stockholders’ equity	251,487	412,595
Total liabilities and stockholders’ equity	$ 1,054,196	$ 1,065,539

Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Revenue	$ 131,364	$ 113,479
Cost of revenue	75,950	62,321
Gross profit	55,414	51,158
Operating expenses:
Research and development	22,427	16,789
Sales and marketing	23,152	19,110
General and administrative	16,705	15,296
Total operating expenses	62,284	51,195
Operating loss	(6,870)	(37)
Other income (expense), net	235	(5,611)
Loss before income taxes	(6,635)	(5,648)
Income tax (provision) benefit	(179)	332
Net loss	$ (6,814)	$ (5,316)
Net loss per share, basic and diluted
Basic (in usd per share)	$ (0.27)	$ (0.21)
Diluted (in usd per share)	$ (0.27)	$ (0.21)
Weighted average number of common shares outstanding, basic and diluted
Weighted average number of common shares outstanding, basic (in shares)	25,220,052	25,015,948
Weighted average number of common shares outstanding, diluted (in shares)	25,220,052	25,015,948

Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net loss	$ (6,814)	$ (5,316)
Other comprehensive loss
Foreign currency translation, net of income taxes	(10,516)	(23,185)
Other comprehensive loss	(10,516)	(23,185)
Total comprehensive loss	$ (17,330)	$ (28,501)

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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+ Details

Condensed Consolidated Statements of Changes in Stockholders’ Equity - USD ($) $ in Thousands	Total	Adjustment to opening retained earnings due to adoption of ASC 606	Additional paid-in capital	Additional paid-in capital Adjustment to opening retained earnings due to adoption of ASC 606	Accumulated other comprehensive (loss) income	Accumulated deficit	Accumulated deficit Adjustment to opening retained earnings due to adoption of ASC 606	Class A voting common stock	Class A voting common stock Common stock	Class B voting common stock	Class B voting common stock Common stock
Beginning balance (in shares) at Dec. 31, 2020									22,413,004		2,496,125
Beginning balance at Dec. 31, 2020	$ 429,923		$ 451,463		$ 27,941	$ (49,505)			$ 22		$ 2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of debt conversion option	66,908		66,908
Debt conversion option issuance costs, net of tax	(2,049)		(2,049)
Capped call option purchase price	(25,500)		(25,500)
Exercises of vested stock options (in shares)									57,817
Exercises of vested stock options	753		753
Vesting of restricted stock units (in shares)									141,707
Equity awards withheld for tax liability (in shares)									(19,879)
Equity awards withheld for tax liability	(3,187)		(3,187)
Conversion of Class B voting common stock to Class A voting common stock (in shares)									280,955		(280,955)
Conversion of Class B voting common stock to Class A voting common stock	1								$ 1
Foreign currency translation	(23,185)				(23,185)
Stock-based compensation	4,390		4,390
Net loss	(5,316)					(5,316)
Ending balance (in shares) at Mar. 31, 2021									22,873,604		2,215,170
Ending balance at Mar. 31, 2021	442,738		492,778		4,756	(54,821)			$ 23		$ 2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Debt conversion option issuance costs, net of tax	30		30
Exercises of vested stock options (in shares)									4,406
Exercises of vested stock options	46		46
Vesting of restricted stock units (in shares)									15,605
Equity awards withheld for tax liability (in shares)									(1,948)
Equity awards withheld for tax liability	(265)		(265)
Foreign currency translation	6,015				6,015
Stock-based compensation	3,377		3,377
Net loss	(6,928)					(6,928)
Ending balance (in shares) at Jun. 30, 2021									22,891,667		2,215,170
Ending balance at Jun. 30, 2021	445,013		495,966		10,771	(61,749)			$ 23		$ 2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercises of vested stock options (in shares)									8,700
Exercises of vested stock options	101		101
Vesting of restricted stock units (in shares)									16,383
Equity awards withheld for tax liability (in shares)									(1,631)
Equity awards withheld for tax liability	(154)		(154)
Conversion of Class B voting common stock to Class A voting common stock (in shares)									250,000		(250,000)
Conversion of Class B voting common stock to Class A voting common stock	0
Foreign currency translation	(12,512)				(12,512)
Stock-based compensation	3,825		3,825
Net loss	(6,944)					(6,944)
Ending balance (in shares) at Sep. 30, 2021									23,165,119		1,965,170
Ending balance at Sep. 30, 2021	429,329		499,738		(1,741)	(68,693)			$ 23		$ 2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercises of vested stock options (in shares)									3,062
Exercises of vested stock options	23		23
Vesting of restricted stock units (in shares)									12,807
Equity awards withheld for tax liability (in shares)									(3,000)
Equity awards withheld for tax liability	(229)		(229)
Foreign currency translation	(11,468)				(11,468)
Unrealized gain/loss on employee benefit pension plan	169				169
Stock-based compensation	2,945		2,945
Net loss	(8,174)					(8,174)
Ending balance (in shares) at Dec. 31, 2021								23,177,988	23,177,988	1,965,170	1,965,170
Ending balance at Dec. 31, 2021	$ 412,595	$ (147,498)	502,477	$ (156,248)	(13,040)	(76,867)	$ 8,750		$ 23		$ 2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update	Accounting Standards Update 2020-06
Exercises of vested stock options (in shares)									16,095
Exercises of vested stock options	$ 125		125
Vesting of restricted stock units (in shares)									144,977
Equity awards withheld for tax liability (in shares)									(30,029)
Equity awards withheld for tax liability	(1,751)		(1,751)
Foreign currency translation	(10,516)				(10,516)
Stock-based compensation	5,346		5,346
Net loss	(6,814)					(6,814)
Ending balance (in shares) at Mar. 31, 2022								23,309,031	23,309,031	1,965,170	1,965,170
Ending balance at Mar. 31, 2022	$ 251,487		$ 349,949		$ (23,556)	$ (74,931)			$ 23		$ 2

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2021	Mar. 31, 2021
Cash flows from operating activities
Net loss	$ (6,814)	$ (8,174)	$ (6,928)	$ (5,316)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities
Depreciation and amortization	9,170			9,043
Right-of-use asset amortization	1,910			1,347
Amortization of debt discount and issuance costs	760			5,186
Stock-based compensation	5,346			4,390
Deferred taxes and other	94			(894)
Changes in operating assets and liabilities:
Accounts receivable, net of allowances	(7,416)			3,530
Prepaid expenses and other assets	(11,334)			573
Accounts payable	11			1,387
Accrued expenses and other liabilities	3,690			(7,866)
Operating right-of-use liability	(2,112)			(1,371)
Net cash (used in) provided by operating activities	(6,695)			10,009
Cash flows from investing activities
Purchase of property and equipment	(5,272)			(6,781)
Capitalized software development costs	(653)			(1,103)
Proceeds from sales and maturities of other investments	0			30,000
Net cash (used in) provided by investing activities	(5,925)			22,116
Cash flows from financing activities
Payments on finance leases	(48)			(44)
Proceeds from issuance of convertible senior notes	0			250,000
Purchase of Capped Call	0			(25,500)
Payment of debt issuance costs	0			(7,000)
Proceeds from exercises of stock options	125			738
Value of equity awards withheld for tax liabilities	(1,701)			(2,900)
Net cash (used in) provided by financing activities	(1,624)			215,294
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(1,056)			402
Net (decrease) increase in cash, cash equivalents, and restricted cash	(15,300)			247,821
Cash, cash equivalents, and restricted cash, beginning of period	332,289		$ 329,258	81,437
Cash, cash equivalents, and restricted cash, end of period	316,989	$ 332,289		329,258
Supplemental disclosure of cash flow information
Cash paid for interest	472			525
Cash paid (refunded) for taxes, net	36			(394)
Right-of-use assets obtained in exchange for new operating lease liabilities	3,453			0
Supplemental disclosure of noncash investing and financing activities
Purchase of property and equipment, accrued but not paid	433			1,780
Lease incentive	1,152			0
Equity awards withheld for tax liabilities, accrued but not paid	177			531
Payment of debt issuance costs, accrued but unpaid	$ 0			$ 659

Organization and Description of Business	3 Months Ended
Organization and Description of Business	Mar. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Description of Business	1. Organization and Description of Business Bandwidth Inc. (together with its subsidiaries, “Bandwidth” or the “Company”) was founded in July 2000 and incorporated in Delaware on March 29, 2001. The Company’s headquarters are located in Raleigh, North Carolina. The Company is an international cloud-based, software-powered communications platform-as-a-service (“CPaaS”) provider that enables enterprises to create, scale and operate voice or messaging communications services across any mobile application or connected device. As a result of certain changes in our business during the quarter ended March 31, 2022, the company re-evaluated its segment reporting and determined that one segment was appropriate, rather than the previously reported segments comprising “CPaaS” and “Other”. The primary drivers for this change were the company’s strategic alignment of its operating departments and the sale of legacy businesses. All previously reported segment information has been recast to conform with the one segment structure.

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 unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (the “SEC”) regarding interim financial reporting. Certain information and disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K filed with the SEC on February 25, 2022.

The condensed consolidated balance sheet as of December 31, 2021, included herein, was derived from the audited financial statements as of that date, but does not include all disclosures, including certain notes required by GAAP on an annual reporting basis.

In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, comprehensive loss and cash flows for the interim periods, but are not necessarily indicative of the results of operations to be anticipated for the full year 2022 or any future period.

Cost Alignment

During the quarter ended March 31, 2022, the Company changed its presentation of certain costs to align with benchmarked definitions of cost of revenue, research and development, sales and marketing, and general and administrative expenses. As part of the benchmarked definitions, the Company has included allocations of facilities and shared IT costs based on employee headcount within the cost of revenue, research and development, sales and marketing, and general and administrative expense categories. Additionally, the product management function is now included in research and development rather than general and administrative as previously reported and the customer billing and collections function and the amortization of acquired customer relationship intangible assets are now included in sales and marketing rather than general and administrative as previously reported. Management believes use of the benchmarked definitions will increase comparability to peers and therefore usability of its financial statements.

All periods presented have been conformed to the current definitions of cost of revenue, research and development, sales and marketing, and general and administrative expenses. There was no impact to revenue or net income for any periods presented. The condensed consolidated balance sheets, condensed consolidated statements of changes in stockholders’ equity and condensed consolidated statements of cash flows are not affected by these changes.

The following is a comparison of the change in costs to the prior period:


	Three months ended March 31, 2021
	As reported		As previously reported

	(In thousands)
Statement of Operations
Cost of revenue	$	62,321	$	61,328
Research and development	16,789		13,333
Sales and marketing	19,110		11,992
General and administrative	15,296		26,863

Principles of Consolidation

The condensed consolidated financial statements include the accounts of Bandwidth Inc. and its wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.

Use of Estimates

The preparation of the Company’s condensed consolidated financial statements in conformity with GAAP requires the Company to make estimates and judgments that affect the amounts reported in these financial statements and accompanying notes. These estimates in the condensed consolidated financial statements include, but are not limited to, allowance for doubtful accounts, reserve for expected credit losses, reserve for sales credits, recoverability of long lived and intangible assets, fair value of acquired intangible assets and goodwill, discount rates used in the valuation of right-of-use assets and lease liabilities, the fair value of the liability of the Company’s Convertible Notes (as defined herein), estimated period of benefit, valuation allowances on deferred tax assets, certain accrued expenses and contingencies, economic and demographic actuarial assumptions related to pension and other postretirement benefit costs and liabilities, estimated cash flows on asset retirement obligation. Although the Company believes that the estimates it uses are reasonable, due to the inherent uncertainty involved in making these estimates, actual results reported in future periods could differ from those estimates.

Cash and Cash Equivalents

The Company classifies all highly liquid investments with original stated maturities of three months or less from the date of purchase as cash equivalents. Cash deposits are primarily in financial institutions in the United States. However, cash for monthly operating costs of international operations are deposited in banks outside the United States. The Company has a policy of making investments only with commercial institutions that have at least an investment grade credit rating. The Company utilizes money market funds as an investment option and only invests in AAA rated funds.

Restricted Cash

Restricted cash consists primarily of employee withholding tax liability and employee benefits contributions not yet remitted. The Company has classified this asset as a short-term asset in order to match the expected period of restriction.

Accounts Receivable and Current Expected Credit Losses

Accounts receivable are stated at realizable value, net of allowances, which includes an allowance for doubtful accounts and a reserve for expected credit losses. The allowance for doubtful accounts is based on management’s assessment of the collectability of its customer accounts. The Company regularly reviews the composition of the accounts receivable aging, historical bad debts, changes in payment patterns, customer creditworthiness, current economic trends, and reasonable and supportable forecasts about the future. Relevant risk characteristics include customer size and historical loss patterns. Management has evaluated the expected credit losses related to trade accounts receivable and determined that an allowance of approximately $1.7 million for uncollectible accounts and customer balances that are disputed was required as of each of March 31, 2022 and December 31, 2021. Refer to Note 4, “Financial Statement Components” to these condensed consolidated financial statements, for a rollforward of the components of the allowances as of March 31, 2022 and December 31, 2021.

The Company includes unbilled receivables in its accounts receivable balance. Generally, these receivables represent earned revenue from services provided to customers, which will be billed in the next billing cycle. All amounts are considered collectible and billable. As of March 31, 2022 and December 31, 2021, unbilled receivables were $35.5 million and $31.8 million, respectively.

Concentration of Credit Risk

Financial instruments that are exposed to concentration of credit risk consist primarily of cash and cash equivalents and trade accounts receivable. Cash deposits may be in excess of insured limits. The Company believes that the financial institutions that hold its cash deposits are financially sound and, accordingly, minimal credit risk exists with respect to these balances.

With regard to customers, credit evaluation and account monitoring procedures are used to minimize the risk of loss. The Company believes that no additional credit risk beyond amounts provided for by the allowance for doubtful accounts are inherent in accounts receivable. As of March 31, 2022, no individual customer represented more than 10% of the Company’s accounts receivable, net of allowance for doubtful accounts. As of December 31, 2021, one individual customer represented approximately 10%, respectively, of the Company’s accounts receivable, net of allowance for doubtful accounts.

For the three months ended March 31, 2022 and 2021, no individual customer represented more than 10% of the Company’s revenue.

Debt Issuance Costs

The Company incurs debt issuance costs associated with obtaining and entering into credit agreements and issuing convertible notes. These costs customarily include non-refundable structuring fees, commitment fees, up-front fees and syndication expenses. The Company has a policy of deferring and amortizing these costs based on the effective interest method over the term of the credit agreements or the convertible notes, as applicable.

Recently Adopted Accounting Standards

In August 2020, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“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), which is intended to address issues identified as a result of the complexity associated with applying GAAP for certain financial instruments with characteristics of liabilities and equity. For convertible instruments, ASU 2020-06 reduces the number of accounting models for convertible debt instruments and convertible preferred stock, and enhances information transparency by making targeted improvements to the disclosures for convertible instruments and EPS guidance on the basis of feedback from financial statement users. ASU 2020-06 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2021. Early adoption was permitted, but no earlier than fiscal years beginning after December 15, 2020, including interim periods within those fiscal years. The Company adopted the new guidance on January 1, 2022 using the modified retrospective approach resulting in decreases in accumulated deficit of $8.8 million, additional paid in capital of $156.2 million, and deferred tax liability of $1.0 million. The Company also recorded an increase in the convertible notes balance of $148.4 million as a result of the reversal of the separation of the convertible debt between debt and equity. The adoption of this standard decreased the amount of non-cash interest expense to be recognized in current and future periods as a result of eliminating the discount associated with the equity component. For the three months ended March 31, 2022, the combined interest expense of the Convertible Notes was $6.6 million lower upon the adoption of ASU 2020-06. The number of diluted shares increased as a result of transitioning from the treasury stock method to the as-if converted method but did not change the earnings per share for the three months ended March 31, 2022 and 2021 as the Company incurred a net loss in both reporting periods.

In May 2021, the FASB issued ASU 2021-04, Earnings Per Share (Topic 260), Debt —Modifications and Extinguishments (Subtopic 470-50), Compensation--Stock Compensation (Topic 718), and Derivatives and Hedging--Contracts in Entity’s Own Equity (Subtopic 815-40), which is intended to provide clarity surrounding the treatment for a modification or an exchange of a freestanding equity-classified written call option. The amendments also provide guidance for the recognition and measurement of earnings-per-share (“EPS”) for certain modifications or exchanges of freestanding equity-classified written call options for entities that present EPS. The amendments do not affect a holder’s accounting for freestanding call options. ASU 2021-04 is effective for fiscal years beginning after December 15, 2021, including interim periods within those fiscal years. Early adoption was permitted, including adoption in an interim period. The Company adopted the new guidance on January 1, 2022. The Company did not have any modifications or exchanges of freestanding written call options classified in equity during the reporting period and therefore did not have an impact on its financial statements.

Recent Accounting Pronouncements Not Yet Adopted

The Company did not have any applicable recent accounting pronouncements not yet adopted.

Fair Value Measurements

3 Months Ended

Mar. 31, 2022

Fair Value Disclosures [Abstract]

Fair Value Measurements

3. Fair Value Measurements

The carrying amounts of cash and cash equivalents, accounts receivable, accounts payable and accrued expenses approximate fair value as of March 31, 2022 and December 31, 2021 because of the relatively short duration of these instruments.

The Company evaluated its financial assets and liabilities subject to fair value measurements on a recurring basis to determine the appropriate level in which to classify them for each reporting period.

The following table summarizes the assets measured at fair value as of March 31, 2022 and December 31, 2021:


				Fair value measurements on a recurring basis March 31, 2022
	Level 1	Level 2	Level 3			Total

				(In thousands)
Financial assets:
Cash and cash equivalents:
Money market account				$	230,003		$	—	$	—	$	230,003












Total financial assets				$	230,003		$	—	$	—	$	230,003


				Fair value measurements on a recurring basis December 31, 2021
	Level 1	Level 2	Level 3	Total

				(In thousands)
Financial assets:
Cash and cash equivalents:
Money market account				$	241,157	$	—	$	—	$	241,157











Total financial assets				$	241,157	$	—	$	—	$	241,157

As of March 31, 2022, the fair value of the 2026 Convertible Notes and 2028 Convertible Notes, as further described in Note 8, “Debt”, was approximately $309.5 million and $164.8 million, respectively. As of December 31, 2021, the fair value of the 2026 Convertible Notes and the 2028 Convertible Notes was approximately $427.1 million and $194.2 million, respectively. The fair value was determined based on the closing price for the Convertible Notes on the last trading day of the reporting period and is considered as Level 2 in the fair value hierarchy.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Financial Statement Components

3 Months Ended

Mar. 31, 2022

Financial Statement Components [Abstract]

Financial Statement Components

4. Financial Statement Components

Accounts receivable, net of allowances consist of the following:


	As of March 31,		As of December 31,
	2022		2021

	(In thousands)
Trade accounts receivable	$	32,256	$	31,036
Unbilled accounts receivable	35,515		31,786
Allowance for doubtful accounts and reserve for expected credit losses	(1,680)		(1,661)
Other accounts receivable	2,736		411
Total accounts receivable, net	$	68,827	$	61,572

Components of allowance for doubtful accounts and reserve for expected credit losses are as follows:


	Three months ended March 31,
		2022		2021

		(In thousands)
Allowance for doubtful accounts:
Balance, beginning of period		$	(1,661)	$	(1,203)
Charged to bad debt expense		(141)		(48)
Deductions (1)		111		10
Impact of foreign currency translation		11		23



Balance, end of period		$	(1,680)	$	(1,218)

________________________

(1) Write off of uncollectible accounts after all collection efforts have been exhausted.

Accrued expenses and other current liabilities consisted of the following:


	As of March 31,		As of December 31,
	2022		2021

	(In thousands)
Accrued expense	$	31,571	$	31,264
Accrued compensation and benefits	11,731		19,042
Accrued sales, use, VAT and telecommunications related taxes	17,429		11,046

Current portion of finance lease	170		177

Other accrued expenses	4,579		4,392
Total accrued expenses and other current liabilities	$	65,480	$	65,921

Right-of-Use Asset and Lease Liabilities

3 Months Ended

Mar. 31, 2022

Leases [Abstract]

Right-of-Use Asset and Lease Liabilities

5. Right-of-Use Asset and Lease Liabilities

Right-of-use (“ROU”) assets represent the Company’s right to use an underlying asset for the lease term, and lease liabilities represent the Company’s obligation to make lease payments arising from the lease. The Company determines if an arrangement is a lease at inception. ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. Operating lease expense attributable to lease payments is recognized on a straight-line basis over the lease term and is included in general and administrative expense on the Company’s condensed consolidated statements of operations. Finance leases result in the recognition of depreciation expense, which is recognized on a straight-line basis over the expected life of the leased asset, and interest expense, which is recognized following an effective interest rate method. Depreciation expense attributable to finance leases is included in general and administrative expense on the Company’s condensed consolidated statements of operations. The Company presents the operating leases in long-term assets and current and long-term liabilities in the accompanying condensed consolidated balance sheets. Finance leases are reported in property, plant and equipment, net, accrued expenses and other current liabilities, and other liabilities on the Company’s condensed consolidated balance sheets.

The Company sub-leases approximately 17,073 square feet of office space to a related party, Relay, Inc. (f/k/a Republic Wireless, Inc.) (“Relay”). Future minimum sub-lease receipts required under the non-cancellable lease are as follows:


	As of March 31,
	2022

	(In thousands)
2022 (remaining)	$	134

As of March 31, 2022, the Company had various leased properties in the United States and internationally, with remaining lease terms of four months to 4.75 years, some of which include options to extend the leases for up to 5 years. None of the options to extend the leases are recognized in operating lease ROU assets or lease liabilities. The Company has one lease with an early-termination option, which it does not expect to exercise.

The components of lease expense recorded in general and administrative expenses in the consolidated statement of operations were as follows:


	Three months ended March 31,
		2022		2021

	(In thousands)
Operating lease cost		$	2,138	$	1,614
Finance lease cost:
Depreciation of assets		50		47
Interest on lease liabilities		3		—


Sublease income		(96)		(96)
Total net lease cost		$	2,095	$	1,565

During the three months ended March 31, 2022 and 2021, short-term operating lease expense was $0.1 million and $0.3 million, respectively.

Supplemental balance sheet information related to leases was as follows:


		As of March 31,		As of December 31,
Leases	Classification	2022		2021

		(In thousands)
Assets:
Operating lease assets	Operating right-of-use asset, net (1)	$	15,419	$	14,061
Finance lease assets	Property, plant and equipment, net (2)	358		373
Total leased assets		$	15,777	$	14,434

Liabilities:
Current
Operating	Operating lease liability, current	$	7,208	$	5,807
Finance	Accrued expenses and other current liabilities	170		177
Non-current
Operating	Operating lease liability, net of current portion	10,711		10,958
Finance	Other liabilities	195		202
Total lease liabilities		$	18,284	$	17,144

________________________

(1) Operating lease assets are recorded net of accumulated amortization of $16.4 million and $14.8 million as of March 31, 2022 and December 31, 2021, respectively.

(2) Finance lease assets are recorded net of accumulated depreciation of $0.3 million and $0.2 million as of March 31, 2022 and December 31, 2021, respectively.

Supplemental cash flow and other information related to leases was as follows:


	Three months ended March 31,
		2022			2021

		(In thousands)
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases		$	2,112		$	1,371

Financing cash flows from finance leases		48			44
		$	2,160		$	1,415

Weighted average remaining lease term (in years)
Operating leases		2.64			3.53
Finance leases		2.46			2.86

Weighted average discount rate
Operating leases		4.57		%	4.81		%
Finance leases		3.93		%	4.00		%

Maturities of lease liabilities were as follows:


	As of March 31,
	2022
	Operating Leases		Finance Leases

	(In thousands)
2022 (remaining)	$	5,731	$	145
2023	8,371		129
2024	2,636		85
2025	1,611		21
2026	679		2


Total lease payments	19,028		382
Less: imputed interest	(1,109)		(17)

Total lease obligations	17,919		365
Less: current obligations	(7,208)		(170)
Long-term lease obligations	$	10,711	$	195

On June 4, 2021, the Company purchased approximately 40 acres of undeveloped land (the “Property”) in Raleigh, North Carolina, from the State of North Carolina (the “State”) for $30.0 million. Additionally, as consideration for the Property, the Company agreed to construct, at its expense, a parking lot and related improvements (the “Parking Improvements”) on land owned by the State adjacent to the Property. Subsequent to the purchase of the Property, the Company sold a portion of the Property constituting approximately 23.76 acres (the “Conveyed Parcel”) to USEF Edwards Mill Owner, LLC (the “Developer”) for $17.5 million. The Company retained approximately 17.06 acres of the Property, which was recorded at cost and is included in the Company’s condensed consolidated balance sheet as a component of property, plant and equipment, net. A lease incentive of $5.8 million was recognized for the difference between the consideration received from the Developer for the Conveyed Parcel and the cost basis of the Conveyed Parcel and is included as a component of other liabilities on the condensed consolidated balance sheet.

On May 27, 2021, the Company entered into a Lease Agreement (the “Lease”) with the Developer for the Conveyed Parcel, together with improvements for office and related infrastructure to be constructed thereon, collectively constituting approximately 534,000 gross square feet (the “Project”). The lease became effective upon closing of the sale of the Conveyed Parcel to the Developer. When construction of the Project is completed, the Company intends to relocate its corporate headquarters to the Project. The lease term will commence upon substantial completion of the final building to be delivered, as evidenced by a certificate of occupancy issued by the City of Raleigh (the “Commencement Date”), and continue for a period of twenty (20) years (the “Initial Term”). It is anticipated that the Commencement Date will occur in June 2023. The Company has the option to renew the Initial Term for two ten-year periods at a rental rate equal to 100% of the then-prevailing market rental rate for comparable buildings in the Raleigh, North Carolina, market. Upon the effective date, the Company deposited $2.5 million with the Developer as security on the lease. The deposit is included in other long-term assets on the Company’s condensed consolidated balance sheet. Additionally, the Company placed $3.0 million in escrow to fund the certain tenant improvements expected to be constructed as part of the development of the Project.

No right-of-use assets or lease liabilities have been recognized in connection with the lease as of March 31, 2022. Future lease payments are included in Note 12, “Commitments and Contingencies”.

Property, Plant and Equipment

3 Months Ended

Mar. 31, 2022

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

6. Property, Plant and Equipment

Property, plant and equipment, net consisted of the following:


	As of March 31,		As of December 31,
	2022		2021

	(In thousands)
Furniture and fixtures	$	2,202	$	2,240
Computer and office equipment	5,399		5,419
Telecommunications equipment	73,182		76,963
Leasehold improvements	6,245		6,970
Software	6,299		6,942
Internal-use software development	22,361		22,917
Automobile	628		616
Land	18,421		17,269
Total cost	134,737		139,336
Less—accumulated depreciation	(66,184)		(69,732)
Total property, plant and equipment, net	$	68,553	$	69,604

The Company capitalized $0.7 million and $1.1 million of software development costs for the three months ended March 31, 2022 and 2021, respectively.

Amortization expense related to capitalized software development costs $0.5 million and $0.4 million for the three months ended March 31, 2022 and 2021, respectively. As of March 31, 2022, unamortized implementation costs related to cloud computing arrangements are $0.4 million, of which $0.1 million are included in prepaid expenses and other current assets and $0.3 million are included in other long-term assets.

The Company leases automobiles under leases accounted for as finance leases with expiration dates ranging from June 5, 2022 to February 21, 2026. As of March 31, 2022, cost and accumulated depreciation of the assets under finance leases recorded by the Company were $0.6 million and $0.3 million, respectively.

The Company recognized depreciation expense, which includes amortization of capitalized software development costs, as follows:


	Three months ended March 31,
	2022		2021

	(In thousands)
Cost of revenue	$	3,376	$	3,146
Research and development	592		453
Sales and marketing	334		284
General and administrative	302		293
Total depreciation expense	$	4,604	$	4,176

Intangible Assets

3 Months Ended

Mar. 31, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

7. Intangible Assets

Intangible assets, net consisted of the following as of March 31, 2022:


	Gross Amount		Accumulated Amortization		Net Carrying Value		Amortization Period

	(In thousands)						(In years)
Customer relationships	$	152,005	$	(19,135)	$	132,870	15 - 20



Developed technology	80,234		(11,366)		68,868		10
Other, definite lived	2,828		(2,828)		—		2 - 7
Licenses, indefinite lived	764		—		764		Indefinite







Total intangible assets, net	$	235,831	$	(33,329)	$	202,502

Intangible assets, net consisted of the following as of December 31, 2021:


	Gross Amount		Accumulated Amortization		Net Carrying Value		Amortization Period

	(In thousands)						(In years)
Customer relationships	$	155,081	$	(16,861)	$	138,220	15 - 20



Developed technology	82,548		(10,315)		72,233		10
Other, definite lived	3,158		(3,158)		—		2 - 7
Licenses, indefinite lived	764		—		764		Indefinite







Total intangible assets, net	$	241,551	$	(30,334)	$	211,217

The Company recognized amortization expense as follows:


	Three months ended March 31,
	2022		2021

	(In thousands)
Cost of revenue	$	2,032	$	2,176

Sales and marketing	2,534		2,692

Total amortization expense	$	4,566	$	4,868

The remaining weighted average amortization period for definite lived intangible assets is 11.8 years.

Future estimated amortization expense for definite lived intangible assets is as follows:


	As of March 31,
	2022

	(In thousands)
2022 (remaining)	$	13,488
2023	17,984
2024	17,984
2025	17,984
2026	17,984


Thereafter	116,314
	$	201,738

Debt

3 Months Ended

Mar. 31, 2022

Debt Disclosure [Abstract]

Debt

8. Debt

Convertible Senior Notes and Capped Call Transactions

2026 Convertible Notes

On February 28, 2020, the Company issued $400 million aggregate principal amount of 0.25% Convertible Notes due March 1, 2026 in a private placement to qualified institutional buyers pursuant to Rule 144A under the Securities Act (the “2026 Convertible Notes”). The interest on the 2026 Convertible Notes is payable semi-annually in arrears on March 1 and September 1 of each year, beginning on September 1, 2020.

The 2026 Convertible Notes may bear special interest under specified circumstances relating to the Company’s failure to comply with its reporting obligations under the indenture governing the 2026 Convertible Notes (the “2026 Indenture”) or if the 2026 Convertible Notes are not freely tradeable as required by the 2026 Indenture. The 2026 Convertible Notes will mature on March 1, 2026, unless earlier repurchased, redeemed by the Company, or converted pursuant to their terms. The total net proceeds from the 2026 Convertible Notes, after deducting initial purchaser discounts, costs related to the 2026 Capped Calls (as defined herein), and debt issuance costs, paid by the Company, were approximately $344.7 million.

Each $0.001 principal amount of the 2026 Convertible Notes is initially convertible into 10.9857 shares of the Company’s Class A common stock, par value $0.001 per share, which is equivalent to an initial conversion price of approximately $91.03 per share. The conversion rate is subject to adjustment upon the occurrence of certain specified events but will not be adjusted for any accrued and unpaid special interest. In addition, upon the occurrence of a make-whole fundamental change, as defined in the 2026 Indenture, the Company will, in certain circumstances, increase the conversion rate by a number of additional shares for a holder that elects to convert its

2026 Convertible Notes in connection with such make-whole fundamental change or during the relevant redemption period.

The 2026 Convertible Notes will be redeemable in whole or in part at the Company’s option on or after March 6, 2023, but before the fortieth (40th) scheduled trading day before the maturity date, at a cash redemption price equal to 100% of the principal amount of the 2026 Convertible Notes to be redeemed, plus accrued and unpaid interest, if any, if the last reported sale price of the Class A common stock has been at least 130% of the conversion price then in effect for at least 20 trading days (whether or not consecutive) during any 30 consecutive trading days ending on, and including, the trading day immediately before the date the redemption notices were sent; and the trading day immediately before such notices were sent.

Prior to the close of business on the business day immediately preceding September 1, 2025, the 2026 Convertible Notes may be convertible at the option of the holders only under the following circumstances:

(1)during any calendar quarter commencing after the calendar quarter ending on June 30, 2020 (and only during such calendar quarter), if the last reported sale price per share of the Company’s Class A common stock exceeds 130% of the conversion price for each of at least 20 trading days, whether or not consecutive, during the 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter;

(2)during the five consecutive business days immediately after any 10 consecutive trading day period (such 10 consecutive trading day period, the “measurement period”) in which the trading price per $0.001 principal amount of 2026 Convertible Notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price per share of the Company’s Class A common stock on such trading day and the conversion rate on such trading day;

(3)upon the occurrence of certain corporate events or distributions on its Class A common stock; and

(4)if the Company calls such 2026 Convertible Notes for redemption.

On or after September 1, 2025, until the close of business on the second scheduled trading day immediately preceding the maturity date, holders of the 2026 Convertible Notes may, at their option, convert all or a portion of their 2026 Convertible Notes regardless of the foregoing conditions.

Prior to and during the nine months ended September 30, 2021, the conditional conversion feature of the 2026 Convertible Notes was triggered as the last reported sale price of the Company’s Class A common stock was more than or equal to 130% of the conversion price for at least 20 trading days (whether or not consecutive) in the period of 30 consecutive trading days ending on or after June 30, 2020 (the last trading day of the calendar quarter), and therefore the 2026 Convertible Notes were convertible, in whole or in part, at the option of the holders between July 1, 2020 through September 30, 2021. The conditional conversion feature of the 2026 Convertible Notes was not triggered from October 1, 2021 through March 31, 2022 as the last reported sale price of the Company’s Class A common stock was not more than or equal to 130% of the conversion price for at least 20 trading days (whether or not consecutive) in the period of 30 consecutive trading days (the last trading day of the calendar quarter). Whether the 2026 Convertible Notes will be convertible following such period will depend on the satisfaction of this condition or another conversion condition in the future. The Company continues to classify the 2026 Convertible Notes as a long-term liability in its condensed consolidated balance sheet as of March 31, 2022, based on contractual settlement provisions.

Upon conversion, the Company will pay or deliver, as the case may be, cash, shares of Class A common stock, or a combination of cash and shares of Class A common stock, at the Company’s election. It is the Company’s current intent to settle the principal amount of the 2026 Convertible Notes with cash.

No sinking fund is provided for the 2026 Convertible Notes. Upon the occurrence of a fundamental change (as defined in the 2026 Indenture) prior to the maturity date, holders may require the Company to repurchase all or a portion of the 2026 Convertible Notes for cash at a price equal to the principal amount of the 2026 Convertible Notes to be repurchased, plus any accrued and unpaid interest to, but excluding, the fundamental change repurchase date.

In accounting for the issuance of the 2026 Convertible Notes, prior to the adoption of ASU 2020-06, the Company separated the 2026 Convertible Notes into liability and equity components. The carrying amount of the liability component was calculated by measuring the fair value of a similar debt instrument that does not have an associated convertible feature. The carrying amount of the equity component representing the conversion option was $125.2 million and was determined by deducting the fair value of the liability component from the par value of the 2026 Convertible Notes. The difference represented the debt discount that was amortized to interest expense at an effective interest rate of 6.763% over the term of the 2026 Convertible Notes. The carrying amount of the equity component was $57.5 million and is recorded in additional paid-in-capital. The equity component was not remeasured as long as it continued to meet the conditions for equity classification. The excess of the principal amount of the liability component over its carrying amount, or the debt discount, was amortized to interest expense at an annual effective interest rate of 6.907% over the contractual terms of the 2026 Convertible Notes. Upon adoption of ASU 2020-06 on January 1, 2022, the Company reversed the separation of the debt and equity component representing the conversion option and accounted for the 2026 Convertible Notes in their entirety as debt. The Company also reversed the amortization of the debt discount, with a cumulative adjustment to retained earnings on the adoption date.

In accounting for the transaction costs related to the 2026 Convertible Notes, prior to the adoption of ASU 2020-06, the Company allocated the total amount incurred to the liability and equity components of the 2026 Convertible Notes based on the proportion of the proceeds allocated to the debt and equity components. Issuance costs attributable to the liability component were approximately $8.2 million, were recorded as an additional debt discount and are amortized to interest expense using the effective interest method over the contractual terms of the 2026 Convertible Notes. Issuance costs attributable to the equity component of $3.7 million were netted with the equity component in stockholders’ equity. Upon adoption of ASU 2020-06 on January 1, 2022, the Company reversed the allocation of the issuance costs to the equity component and accounted for the entire amount as debt issuance cost that will be amortized as interest expense at an effective interest rate of 0.513% for the term of the 2026 Convertible Notes with a cumulative adjustment to retained earnings on the adoption date.

2028 Convertible Notes

On March 16, 2021, the Company issued $250 million aggregate principal amount of 0.50% Convertible Notes due April 1, 2028 in a private placement to qualified institutional buyers pursuant to Rule 144A under the Securities Act (the “2028 Convertible Notes” and, together with the 2026 Convertible Notes, the “Convertible Notes”). The interest on the 2028 Convertible Notes is payable semi-annually in arrears on April 1 and October 1 of each year, beginning on October 1, 2021.

The 2028 Convertible Notes may bear special interest under specified circumstances relating to the Company’s failure to comply with its reporting obligations under the indenture governing the 2028 Convertible Notes (the “2028 Indenture”) or if the 2028 Convertible Notes are not freely tradeable as required by the 2028 Indenture. The 2028 Convertible Notes will mature on April 1, 2028, unless earlier repurchased, redeemed by the Company, or converted pursuant to their terms. The total net proceeds from the 2028 Convertible Notes, after deducting initial purchaser discounts, costs related to the 2028 Capped Calls (as defined herein), and debt issuance costs, paid by the Company, were approximately $217 million.

Each $0.001 principal amount of the 2028 Convertible Notes is initially convertible into 5.5781 shares of the Company’s Class A common stock, par value $0.001 per share, which is equivalent to an initial conversion price of approximately $179.27 per share. The conversion rate is subject to adjustment upon the occurrence of certain specified events but will not be adjusted for any accrued and unpaid special interest. In addition, upon the

occurrence of a make-whole fundamental change, as defined in the 2028 Indenture, the Company will, in certain circumstances, increase the conversion rate by a number of additional shares for a holder that elects to convert its 2028 Convertible Notes in connection with such make-whole fundamental change or during the relevant redemption period.

The 2028 Convertible Notes will be redeemable in whole or in part at the Company’s option on or after April 6, 2025, but before the fortieth (40th) scheduled trading day before the maturity date, at a cash redemption price equal to 100% of the principal amount of the 2028 Convertible Notes to be redeemed, plus accrued and unpaid interest, if any, if the last reported sale price of the Class A common stock has been at least 130% of the conversion price then in effect for at least 20 trading days (whether or not consecutive) during any 30 consecutive trading days ending on, and including, the trading day immediately before the date the redemption notices were sent; and the trading day immediately before such notices were sent.

On or after April 6, 2025 until the close of business on the scheduled trading day immediately preceding the maturity date, the 2028 Convertible Notes may be convertible at the option of the holders only under the following circumstances:

(1)during any calendar quarter commencing after the calendar quarter ending on June 30, 2021 (and only during such calendar quarter), if the last reported sale price per share of the Company’s Class A common stock exceeds 130% of the conversion price for each of at least 20 trading days, whether or not consecutive, during the 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter;

(2)during the five consecutive business days immediately after any 10 consecutive trading day period (such 10 consecutive trading day period, the “measurement period”) in which the trading price per $0.001 principal amount of 2028 Convertible Notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price per share of the Company’s Class A common stock on such trading day and the conversion rate on such trading day;

(3)upon the occurrence of certain corporate events or distributions on its Class A common stock; and

(4)if the Company calls such 2028 Convertible Notes for redemption.

On or after October 1, 2027, until the close of business on the second scheduled trading day immediately preceding the maturity date, holders of the 2028 Convertible Notes may, at their option, convert all or a portion of their Convertible Notes regardless of the foregoing conditions.

Prior to and during the three months ended March 31, 2022, the conditional conversion feature of the 2028 Convertible Notes was not triggered as the last reported sale price of the Company’s Class A common stock was not more than or equal to 130% of the conversion price for at least 20 trading days (whether or not consecutive) in the period of 30 consecutive trading days (the last trading day of the calendar quarter). Whether the 2028 Convertible Notes will be convertible following such period will depend on the satisfaction of this condition or another conversion condition in the future. The Company continues to classify the 2028 Convertible Notes as a long-term liability in its condensed consolidated balance sheet as of March 31, 2022, based on contractual settlement provisions.

No sinking fund is provided for the 2028 Convertible Notes. Upon the occurrence of a fundamental change (as defined in the 2028 Indenture) prior to the maturity date, holders may require the Company to repurchase all or a portion of the 2028 Convertible Notes for cash at a price equal to the principal amount of the 2028 Convertible

Notes to be repurchased, plus any accrued and unpaid interest to, but excluding, the fundamental change repurchase date.

In accounting for the issuance of the 2028 Convertible Notes, prior to the adoption of ASU 2020-06, the Company separated the 2028 Convertible Notes into liability and equity components. The carrying amount of the liability component was calculated by measuring the fair value of a similar debt instrument that does not have an associated convertible feature. The carrying amount of the equity component representing the conversion option was $66.9 million and was determined by deducting the fair value of the liability component from the par value of the 2028 Convertible Notes. The difference represents the debt discount that was amortized to interest expense at an effective interest rate of 5.125% over the term of the 2028 Convertible Notes. The carrying amount of the equity component was $39.4 million and was recorded in additional paid-in-capital. The equity component was not remeasured as long as it continued to meet the conditions for equity classification. The excess of the principal amount of the liability component over its carrying amount, or the debt discount, was amortized to interest expense at an annual effective interest rate of 4.959% over the contractual terms of the 2028 Convertible Notes. Upon adoption of ASU 2020-06 on January 1, 2022, the Company reversed the separation of the debt and equity component representing the conversion option and accounted for the 2028 Convertible Notes in their entirety as debt. The Company also reversed the amortization of the debt discount, with a cumulative adjustment to retained earnings on the adoption date

In accounting for the transaction costs related to the 2028 Convertible Notes, prior to the adoption of ASU 2020-06, the Company allocated the total amount incurred to the liability and equity components of the 2028 Convertible Notes based on the proportion of the proceeds allocated to the debt and equity components. Issuance costs attributable to the liability component were approximately $5.5 million, were recorded as an additional debt discount and are amortized to interest expense using the effective interest method over the contractual terms of the 2028 Convertible Notes. Issuance costs attributable to the equity component of $2.0 million were netted with the equity component in stockholders’ equity. Upon adoption of ASU 2020-06 on January 1, 2022, the Company reversed the allocation of the issuance costs to the equity component and accounted for the entire amount as debt issuance cost that will be amortized as interest expense at an effective interest rate of 0.442% for the term of the 2028 Convertible Notes with a cumulative adjustment to retained earnings on the adoption date.

As discussed above, upon adoption of ASU 2020-06, the Company reversed the separation of the debt and equity components of the 2026 and 2028 Convertible Notes, and accounted for the Convertible Notes wholly as debt. Additionally, the issuance costs of the 2026 and 2028 Convertible Notes were accounted for as debt issuance costs in their entirety. There is no longer a net carrying amount for the equity component as of the adoption date, January 1, 2022.

The net carrying amount of the liability components of the 2026 and 2028 Convertible Notes were as follows:


	As of March 31,		As of December 31,
	2022		2021

2026 Convertible Notes:	(In thousands)
Principal	$	400,000	$	400,000
Unamortized discount	—		(92,034)
Unamortized debt issuance costs	(7,831)		(6,043)
2026 Convertible Notes net carrying amount	$	392,169	$	301,923

2028 Convertible Notes:
Principal	$	250,000	$	250,000
Unamortized discount	—		(60,488)
Unamortized debt issuance costs	(6,442)		(4,995)
2028 Convertible Notes net carrying amount	$	243,558	$	184,517
Total net carrying amount	$	635,727	$	486,440

The net carrying amount of the equity components of the 2026 and 2028 Convertible Notes were as follows:


	As of March 31,		As of December 31,
	2022		2021

2026 Convertible Notes:	(In thousands)
Proceeds allocated to the conversion options (debt discount)	$	—	$	125,152
Issuance costs	—		(3,742)
2026 Convertible Notes net carrying amount	$	—	$	121,410

2028 Convertible Notes:
Proceeds allocated to the conversion options (debt discount)	$	—	$	66,908
Issuance costs	—		(2,019)
2028 Convertible Notes net carrying amount	$	—	$	64,889
Total net carrying amount	$	—	$	186,299

The following table sets forth the interest expense recognized related to the 2026 and 2028 Convertible Notes:


	Three months ended March 31,
	2022		2021

2026 Convertible Notes:	(In thousands)
Contractual interest expense	$	250	$	250
Amortization of debt discount (1)	—		4,510
Amortization of debt issuance costs	495		296
Total interest expense related to the 2026 Convertible Notes	$	745	$	5,056

2028 Convertible Notes:
Contractual interest expense	$	313	$	52
Amortization of debt discount (1)	—		333
Amortization of debt issuance costs	265		28
Total interest expense related to the 2028 Convertible Notes	$	578	$	413
Total interest expense	$	1,323	$	5,469

(1) Upon adoption of ASU 2020-06, the debt discount associated with the equity component on convertible debt outstanding was reversed, which resulted in a decrease in the amount of non-cash interest expense to be recognized going forward.

In connection with the offering of the 2026 Convertible Notes and the 2028 Convertible Notes, the Company entered into privately negotiated capped call transactions with certain counterparties (the “2026 Capped Calls” and the “2028 Capped Calls,” respectively and, collectively, the “Capped Calls”). The 2026 Capped Calls and the 2028 Capped Calls each have an initial strike price of approximately $91.03 and $179.27 per share, respectively, subject to certain adjustments, which corresponds to the initial conversion price of the 2026 Convertible Notes and the 2028 Convertible Notes. The 2026 Capped Calls and the 2028 Capped Calls have initial cap prices of $137.40 and $260.76 per share subject to certain adjustments, respectively. The 2026 Capped Calls and the 2028 Capped Calls cover, subject to anti-dilution adjustments, approximately 4,394,276 and 1,394,525 shares of Class A common stock for the 2026 Convertible Notes and 2028 Convertible Notes, respectively. The Capped Calls are generally intended to reduce or offset the potential dilution to the Class A common stock upon any conversion of the 2026 Convertible Notes and 2028 Convertible Notes with such reduction or offset, as the case may be, subject to a cap based on the cap price. The Capped Calls expire on the earlier of (i) the last day on which any convertible securities remain outstanding and (ii) March 1, 2026 for the 2026 Capped Calls and April 1, 2028 for the 2028 Capped Calls, subject to earlier exercise. The Capped Calls are subject to either adjustment or termination upon the occurrence of specified extraordinary events affecting the Company, including a merger event, a tender offer, and a nationalization, insolvency or delisting involving the Company. In addition, the Capped Calls are subject to certain specified additional disruption events that may give rise to a termination of the Capped Calls, including changes in law, insolvency filings, and hedging disruptions. The Capped Call transactions are recorded in stockholders’ equity and are not accounted for as derivatives. The net cost of $43.3 million and $25.5 million incurred to purchase the 2026 Capped Calls and the 2028 Capped Calls, respectively, was recorded as a reduction to additional paid-in capital in the accompanying condensed consolidated balance sheets.

The Convertible Notes are effectively subordinated to the Company’s future senior secured indebtedness, if any, to the extent of the value of the collateral securing that indebtedness. The Convertible notes are the senior, unsecured obligations of the Company and are equal in right of payment with the Company’s future senior unsecured indebtedness, if any, senior in right of payment to the Company’s existing and future indebtedness that is expressly subordinated to the Convertible Notes and the Convertible Notes will be structurally subordinated to all

existing and future indebtedness and other liabilities, including trade payables, and preferred equity, if any, of the Company’s subsidiaries.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References

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+ Details

Geographic Information

3 Months Ended

Mar. 31, 2022

Segment Reporting [Abstract]

Geographic Information

9. Geographic Information

The Company’s long-lived assets were primarily held in the United States as of March 31, 2022 and December 31, 2021. As of March 31, 2022 and December 31, 2021, long-lived assets held outside of the United States were $11.9 million and $9.2 million, respectively.

The Company generates its revenue primarily in the United States. Revenue by geographic area is detailed in the table below (which is determined based on the customer billing address):


	Three months ended March 31,
	2022		2021

	(In thousands)

United States	$	115,885	$	100,798
International	15,479		12,681
Total	$	131,364	$	113,479

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

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+ Details

Stockholders' Equity

3 Months Ended

Mar. 31, 2022

Equity [Abstract]

Stockholders' Equity

10. Stockholders’ Equity

Preferred Stock

As of March 31, 2022 and December 31, 2021, the Company had authorized 10,000,000 shares of undesignated preferred stock, par value $0.001, of which no shares were issued and outstanding.

Common Stock

As of March 31, 2022 and December 31, 2021, the Company had authorized 100,000,000 shares of Class A common stock, par value $0.001 per share, with one vote per share and 20,000,000 shares of Class B common stock, par value $0.001 per share, with ten votes per share.

As of March 31, 2022, 23,309,031 and 1,965,170 shares of Class A common stock and Class B common stock, respectively, were issued and outstanding.

As of December 31, 2021, 23,177,988 and 1,965,170 shares of Class A common stock and Class B common stock, respectively, were issued and outstanding.

Shares of Class B common stock are convertible into shares of Class A common stock upon the stockholder’s voluntary written notice to the Company’s transfer agent or a transfer by the stockholder, subject to limited exceptions for transfers for estate planning purposes.

Reserved Shares

The Company had reserved shares of Class A common stock for issuance under stock-based award agreements as follows:


	As of March 31,	As of December 31,
	2022	2021
Stock options issued and outstanding	164,114	180,209
Nonvested restricted stock units issued and outstanding	793,848	344,486
Stock-based awards available for grant under the 2017 Plan	3,625,235	3,060,674
	4,583,197	3,585,369

- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

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+ Details

Stock-Based Compensation

3 Months Ended

Mar. 31, 2022

Share-based Payment Arrangement [Abstract]

Stock-Based Compensation

11. Stock-Based Compensation

2010 Stock Option Plan

As of July 26, 2010, the Company adopted the 2010 Equity Compensation Plan (the “2010 Plan”). On November 9, 2017, the 2010 Plan was terminated in connection with the Company’s initial public offering. Accordingly, no shares are available for future issuance under the 2010 Plan. However, the 2010 Plan continues to govern the terms and conditions of the outstanding awards granted thereunder.

2017 Incentive Award Plan

The Company’s 2017 Incentive Award Plan (the “2017 Plan”) became effective on November 9, 2017. The 2017 Plan provides for the grant of stock options, including incentive stock options and non-qualified stock options, stock appreciation rights, restricted stock, dividend equivalents, restricted stock units, and other stock or cash based awards to employees, consultants and directors of the Company. A total of 1,050,000 shares of the Company’s Class A common stock were originally reserved for issuance under the 2017 Plan. These available shares automatically increase each January 1, beginning on January 1, 2018, by 5% of the number of shares of the Company’s Class A common stock outstanding on the final day of the immediately preceding calendar year. On January 1, 2022, the shares available for grant under the 2017 Plan were automatically increased by 1,158,900 shares.

The terms of the stock option grants are determined by the Company’s Board of Directors. The Company’s stock options vest based on terms of the stock option agreements, which is generally over four years. The stock options have a contractual life of ten years.

Restricted stock units (“RSUs”) granted under the 2017 Plan are generally subject to a time-based vesting condition. The compensation expense related to these awards is based on the grant date fair value of the RSUs and is recognized on a ratable basis over the applicable service period. The Company granted RSUs to its non-employee members of the Board of Directors, some of which vested immediately while others vest 25% as of each calendar quarter immediately following the grant date. Certain RSUs awarded to executives vest over four years with 50% vesting in the first year in 12.5% increments on each calendar quarter immediately following the grant date and the remaining 50% earned over years two, three and four. Other RSUs awarded to executives and employees generally are earned over a service period of four years.

Stock Options

The following summarizes the stock option activity for the periods presented:


	Number of options outstanding	Weighted- average exercise price (Per share)		Weighted- average remaining contract life (In years)	Aggregate intrinsic value (In thousands)
Outstanding as of December 31, 2021	180,209	$	10.14	3.39	$	11,104
Granted	—	—
Exercised	(16,095)	7.79
Forfeited or cancelled	—	—
Outstanding as of March 31, 2022	164,114	$	10.37	3.31	$	3,613

Options vested and exercisable at March 31, 2022	164,114	$	10.37	3.31	$	3,613
Options vested and expected to vest as of March 31, 2022	164,114	$	10.37	3.31	$	3,613


	Three months ended March 31,
		2022		2021

	(In thousands)
Aggregate intrinsic value of stock options exercised		$	576	$	7,697
Total estimated grant date fair value of options vested		—		21

Aggregate intrinsic value is computed based on the difference between the option exercise price and the fair value of the Company’s common stock as of March 31, 2022, based on the Company’s Class A common stock price as reported on the NASDAQ Global Select Market.

No options were granted for the quarter ended March 31, 2022 and 2021.

As of March 31, 2022, the Company had no unrecognized compensation cost related to non-vested stock options. All outstanding stock options are fully vested.

Restricted Stock Units

The following summarizes the RSU activity for the period presented:


	Number of awards outstanding	Weighted-average grant date fair value (Per share)
Nonvested RSUs as of December 31, 2021	344,486	$	82.38
Granted	627,724	62.66
Vested	(144,977)	56.09
Forfeited or cancelled	(33,385)	77.34
Nonvested RSUs as of March 31, 2022	793,848	$	71.99

As of March 31, 2022, total unrecognized compensation cost related to non-vested RSUs was $53.2 million, which will be amortized over a weighted-average period of 3.34 years.

Stock-Based Compensation Expense

The Company recognized total stock-based compensation expense as follows:


	Three months ended March 31,
	2022		2021

	(In thousands)
Cost of revenue	$	99	$	101
Research and development	1,868		1,080
Sales and marketing	899		710
General and administrative	2,480		2,499
Total	$	5,346	$	4,390

Commitments and Contingencies	3 Months Ended
Commitments and Contingencies	Mar. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	12. Commitments and Contingencies Operating Leases The Company leases office space under operating lease agreements that expire over the next 4.75 years. See Note 5, “Right-of-Use Asset and Lease Liabilities” to the condensed consolidated financial statements, for additional details on the Company’s operating lease commitments. Contractual Obligations On October 25, 2015, the Company entered into an agreement with a telecommunications service provider. The service agreement requires the Company to pay a monthly recurring charge associated with the services received. The service agreement is non-cancellable and contains annual minimum commitments. On August 1, 2020, the Company amended the agreement to require annual minimum commitments of $0.3 million and $0.6 million in 2022 and 2021, respectively. In addition, as of March 31, 2022, the Company has $13.7 million in other non-cancellable purchase obligations, consisting of primarily network equipment maintenance and software license contracts, of which $10.0 million will be fulfilled within one year. On May 27, 2021, the Company entered into the Lease with the Developer for the Conveyed Parcel, together with the Project. The respective obligations of the Company and the Developer under the Lease were conditioned upon the Developer acquiring fee simple title to the Conveyed Parcel, which occurred on June 4, 2021. The Lease term will commence upon the Commencement Date and continue for the Initial Term. It is anticipated that the Commencement Date will occur in June 2023. If the Commencement Date does not occur within one hundred twenty (120) days from the scheduled Commencement Date, the Company shall be entitled to certain rent abatements, as described in the Lease. If the Commencement Date is not delivered within twelve (12) months of the scheduled Commencement Date, the Company may terminate the Lease. The Company has the option to renew the Initial Term for two ten-year periods. Base rent payments will begin on the Commencement Date. The initial base rent will increase by 1.85% on each anniversary of the Commencement Date. Total lease payments over the Initial Term are approximately $495.7 million. See Note 5, “Right-of-Use Asset and Lease Liabilities” to the condensed consolidated financial statements, for additional details on the Company's operating lease commitments. Legal Matters The Company is involved as a defendant in various litigation, including, but not limited to, lawsuits alleging that the Company failed to bill, collect and remit certain taxes and surcharges associated with the provision of 911 services pursuant to applicable laws in various jurisdictions. While the results of these legal proceedings cannot be predicted with certainty, in the opinion of management, the ultimate resolution of these matters will not have a material adverse effect on the Company’s financial position or results of operations.

Employee Benefit Plans

3 Months Ended

Mar. 31, 2022

Retirement Benefits [Abstract]

Employee Benefit Plans

13. Employee Benefit Plans

The Company sponsors a U.S. defined contribution 401(k), which allows eligible U.S.-based employees to defer a portion of their compensation. The Company, at its discretion, may make matching contributions. With the acquisition of Voxbone S.A. on November 1, 2020, the Company assumed sponsorship for Voxbone S.A.’s U.S. defined contribution 401(k). In connection with that acquisition, the Company also assumed sponsorship for a non-U.S. defined contribution plan for which it pays fixed contributions into a separate entity. The Company has no legal or constructive obligations to pay further contributions if the fund does not hold sufficient assets to pay all employees the benefits relating to employee service in the current or prior periods. The contributions are recognized as employee benefit expense when they are due. The Company made matching contributions for the defined contribution plans of $1.2 million and $0.9 million for the three months ended March 31, 2022 and 2021, respectively.

In addition, as a result of the acquisition of Voxbone S.A., the Company assumed sponsorship for Voxbone S.A.’s non-U.S. defined benefit pension plans. The liability recognized is the present value of the defined benefit obligation at the end of the reporting period less the fair value of the plan assets and is included in other liabilities in the accompanying condensed consolidated balance sheets. The defined benefit obligation is calculated annually by an independent actuary using the Projected Unit Credit Method.

The Company reports the service cost component of net periodic benefit cost in the same line item as other compensation costs arising from the services rendered by the employee and records the other components of net periodic benefit cost in other expense, net.

Pretax amounts for net periodic benefit cost and other amounts for the defined benefit pension plans consisted of the following components:


	Three months ended March 31,
	2022			2021

	(In thousands)
Service cost	$	70		$	103
Interest cost	9			5
Return on plan assets	(7)			(4)
Net periodic pension cost	72			104







Total recognized in net periodic benefit cost and included in other comprehensive loss	$	72		$	104

Defined benefit cost:
Expected long-term rate of return on plan assets	0.90		%	0.50		%

- Definition

The entire disclosure for retirement benefits.

+ References

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+ Details

Income Taxes	3 Months Ended
Income Taxes	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Income Taxes	14. Income Taxes At the end of each interim reporting period, the Company determines the income tax provision by using an estimate of the annual effective tax rate, adjusted for discrete items occurring in the quarter. The effective income tax rate reflects the effect of federal, state, and foreign income taxes and the permanent impacts of differences in book and tax accounting. The Company’s effective tax rate was (2.7)% and 5.9% for the three months ended March 31, 2022 and 2021, respectively. The change in tax rate is primarily due to the recognition of current tax liability in the U.S. for the three months ended March 31, 2022 without recognizing any tax benefit of corresponding deferred tax assets as a result of the Company’s valuation allowance. The Company continues to maintain a valuation allowance for its U.S. federal and state net deferred tax assets. Judgment is required in determining whether deferred tax assets will be realized in full or in part. Management assesses the available positive and negative evidence on a jurisdictional basis to estimate if deferred tax assets will be recognized and when it is more likely than not that all or some deferred tax assets will not be realized, and a valuation allowance must be established. The Company’s effective tax rate for the three months ended March 31, 2022 is lower than the U.S. federal statutory rate of 21.0% primarily due to the valuation allowance recorded against U.S. deferred tax assets.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Related Parties	3 Months Ended
Related Parties	Mar. 31, 2022
Related Party Transactions [Abstract]
Related Parties	15. Related Parties The Company has certain involvement with Relay, Inc. (f/k/a Republic Wireless, Inc.) (“Relay”) via ongoing services arrangements, including a Facilities Sharing Agreement and a Master Services Agreement. Amounts charged under these arrangements totaled $0.4 million and $0.5 million for the three months ended March 31, 2022 and 2021, respectively, and amounts due under these arrangements totaled $0.3 million and $0.1 million as of March 31, 2022 and December 31, 2021, respectively.

Basic and Diluted Loss per Common Share

3 Months Ended

Mar. 31, 2022

Earnings Per Share [Abstract]

Basic and Diluted Loss per Common Share

16. Basic and Diluted Loss per Common Share

Basic net loss per share is computed by dividing net loss by the weighted-average number of shares of common stock outstanding during the period. The Company is in a net loss position for the three months ended March 31, 2022 and 2021 and therefore diluted shares equals basic shares.

The components of basic and diluted loss per share are as follows:


	Three months ended March 31,
	2022		2021

	(In thousands, except share and per share amounts)
Earnings per share


Net loss attributable to common stockholders	$	(6,814)	$	(5,316)
Net loss per share, basic and diluted	$	(0.27)	$	(0.21)
















Weighted average number of common shares outstanding, basic and diluted	25,220,052		25,015,948

The following common share equivalents were excluded from the weighted average shares used to calculate net loss per common share because their effects would have been anti-dilutive:


	As of March 31,
	2022	2021
Stock options issued and outstanding	164,114	196,433
Restricted stock units issued and outstanding	793,848	405,875
Convertible senior notes (1)	5,788,805	1,812,134
Total	6,746,767	2,414,442

________________________

(1) As of March 31, 2022 and March 31, 2021, subsequent to adopting ASU 2020-06 as of January 1, 2022, the Company used the if-converted method to calculate the dilutive impact of the 2026 Convertible Notes and 2028 Convertible Notes on diluted income per share, if applicable. The Company expected to settle the principal amount of these notes in cash and any excess in shares of the Company’s Class A common stock. The diluted shares were calculated based on the initial conversion rate of 10.9857 and 5.5781 shares per $0.001 of the aggregate principal amount for the 2026 Convertible Notes and 2028 Convertible Notes, respectively. See Note 2, “Summary of Significant Accounting Policies” to the condensed consolidated financial statements, for additional details on the adoption of ASU 2020-06 and Note 8, “Debt” to the condensed consolidated financial statements, for additional details on the Company's Convertible Notes.

Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2022

Accounting Policies [Abstract]

Basis of Presentation

Cost Alignment

The following is a comparison of the change in costs to the prior period:


	Three months ended March 31, 2021
	As reported		As previously reported

	(In thousands)
Statement of Operations
Cost of revenue	$	62,321	$	61,328
Research and development	16,789		13,333
Sales and marketing	19,110		11,992
General and administrative	15,296		26,863

Principles of Consolidation

Use of Estimates

Cash and Cash Equivalents and Restricted Cash

Cash and Cash Equivalents

Restricted Cash

Accounts Receivable

Accounts Receivable and Current Expected Credit Losses

Current Expected Credit Losses

Accounts Receivable and Current Expected Credit Losses

Concentration of Credit Risk

Debt Issuance Costs

Debt Issuance CostsThe Company incurs debt issuance costs associated with obtaining and entering into credit agreements and issuing convertible notes. These costs customarily include non-refundable structuring fees, commitment fees, up-front fees and syndication expenses. The Company has a policy of deferring and amortizing these costs based on the effective interest method over the term of the credit agreements or the convertible notes, as applicable.

Recently Adopted Accounting Standards and Recent Accounting Pronouncements Not Yet Adopted

Recently Adopted Accounting Standards

Recent Accounting Pronouncements Not Yet Adopted

The Company did not have any applicable recent accounting pronouncements not yet adopted.

Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2022

Accounting Policies [Abstract]

Schedule of Changes in Costs to Prior Periods

The following is a comparison of the change in costs to the prior period:


	Three months ended March 31, 2021
	As reported		As previously reported

	(In thousands)
Statement of Operations
Cost of revenue	$	62,321	$	61,328
Research and development	16,789		13,333
Sales and marketing	19,110		11,992
General and administrative	15,296		26,863

Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2022

Fair Value Disclosures [Abstract]

Schedule of Assets Measured at Fair Value on a Recurring Basis

The following table summarizes the assets measured at fair value as of March 31, 2022 and December 31, 2021:


				Fair value measurements on a recurring basis March 31, 2022
	Level 1	Level 2	Level 3			Total

				(In thousands)
Financial assets:
Cash and cash equivalents:
Money market account				$	230,003		$	—	$	—	$	230,003












Total financial assets				$	230,003		$	—	$	—	$	230,003


				Fair value measurements on a recurring basis December 31, 2021
	Level 1	Level 2	Level 3	Total

				(In thousands)
Financial assets:
Cash and cash equivalents:
Money market account				$	241,157	$	—	$	—	$	241,157











Total financial assets				$	241,157	$	—	$	—	$	241,157

Financial Statement Components (Tables)

3 Months Ended

Mar. 31, 2022

Financial Statement Components [Abstract]

Schedule of Accounts Receivable, net of Allowances

Accounts receivable, net of allowances consist of the following:


	As of March 31,		As of December 31,
	2022		2021

	(In thousands)
Trade accounts receivable	$	32,256	$	31,036
Unbilled accounts receivable	35,515		31,786
Allowance for doubtful accounts and reserve for expected credit losses	(1,680)		(1,661)
Other accounts receivable	2,736		411
Total accounts receivable, net	$	68,827	$	61,572

Components of allowance for doubtful accounts and reserve for expected credit losses are as follows:


	Three months ended March 31,
		2022		2021

		(In thousands)
Allowance for doubtful accounts:
Balance, beginning of period		$	(1,661)	$	(1,203)
Charged to bad debt expense		(141)		(48)
Deductions (1)		111		10
Impact of foreign currency translation		11		23



Balance, end of period		$	(1,680)	$	(1,218)

________________________

(1) Write off of uncollectible accounts after all collection efforts have been exhausted.

Schedule of Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consisted of the following:


	As of March 31,		As of December 31,
	2022		2021

	(In thousands)
Accrued expense	$	31,571	$	31,264
Accrued compensation and benefits	11,731		19,042
Accrued sales, use, VAT and telecommunications related taxes	17,429		11,046

Current portion of finance lease	170		177

Other accrued expenses	4,579		4,392
Total accrued expenses and other current liabilities	$	65,480	$	65,921

Right-of-Use Asset and Lease Liabilities (Tables)

3 Months Ended

Mar. 31, 2022

Leases [Abstract]

Schedule of Future Minimum Lease Receipts for Operating Lease

Future minimum sub-lease receipts required under the non-cancellable lease are as follows:


	As of March 31,
	2022

	(In thousands)
2022 (remaining)	$	134

Components of Lease Expense and Supplemental Cash Flow and Other Information

The components of lease expense recorded in general and administrative expenses in the consolidated statement of operations were as follows:


	Three months ended March 31,
		2022		2021

	(In thousands)
Operating lease cost		$	2,138	$	1,614
Finance lease cost:
Depreciation of assets		50		47
Interest on lease liabilities		3		—


Sublease income		(96)		(96)
Total net lease cost		$	2,095	$	1,565

Supplemental cash flow and other information related to leases was as follows:


	Three months ended March 31,
		2022			2021

		(In thousands)
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases		$	2,112		$	1,371

Financing cash flows from finance leases		48			44
		$	2,160		$	1,415

Weighted average remaining lease term (in years)
Operating leases		2.64			3.53
Finance leases		2.46			2.86

Weighted average discount rate
Operating leases		4.57		%	4.81		%
Finance leases		3.93		%	4.00		%

Schedule of Supplemental Balance Sheet Lease Information

Supplemental balance sheet information related to leases was as follows:


		As of March 31,		As of December 31,
Leases	Classification	2022		2021

		(In thousands)
Assets:
Operating lease assets	Operating right-of-use asset, net (1)	$	15,419	$	14,061
Finance lease assets	Property, plant and equipment, net (2)	358		373
Total leased assets		$	15,777	$	14,434

Liabilities:
Current
Operating	Operating lease liability, current	$	7,208	$	5,807
Finance	Accrued expenses and other current liabilities	170		177
Non-current
Operating	Operating lease liability, net of current portion	10,711		10,958
Finance	Other liabilities	195		202
Total lease liabilities		$	18,284	$	17,144

________________________

(1) Operating lease assets are recorded net of accumulated amortization of $16.4 million and $14.8 million as of March 31, 2022 and December 31, 2021, respectively.

(2) Finance lease assets are recorded net of accumulated depreciation of $0.3 million and $0.2 million as of March 31, 2022 and December 31, 2021, respectively.

Schedule of Maturities of Operating Lease Liabilities

Maturities of lease liabilities were as follows:


	As of March 31,
	2022
	Operating Leases		Finance Leases

	(In thousands)
2022 (remaining)	$	5,731	$	145
2023	8,371		129
2024	2,636		85
2025	1,611		21
2026	679		2


Total lease payments	19,028		382
Less: imputed interest	(1,109)		(17)

Total lease obligations	17,919		365
Less: current obligations	(7,208)		(170)
Long-term lease obligations	$	10,711	$	195

Schedule of Maturities of Finance Lease Liabilities

Maturities of lease liabilities were as follows:


	As of March 31,
	2022
	Operating Leases		Finance Leases

	(In thousands)
2022 (remaining)	$	5,731	$	145
2023	8,371		129
2024	2,636		85
2025	1,611		21
2026	679		2


Total lease payments	19,028		382
Less: imputed interest	(1,109)		(17)

Total lease obligations	17,919		365
Less: current obligations	(7,208)		(170)
Long-term lease obligations	$	10,711	$	195

Property, Plant and Equipment (Tables)

3 Months Ended

Mar. 31, 2022

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment, Net

Property, plant and equipment, net consisted of the following:


	As of March 31,		As of December 31,
	2022		2021

	(In thousands)
Furniture and fixtures	$	2,202	$	2,240
Computer and office equipment	5,399		5,419
Telecommunications equipment	73,182		76,963
Leasehold improvements	6,245		6,970
Software	6,299		6,942
Internal-use software development	22,361		22,917
Automobile	628		616
Land	18,421		17,269
Total cost	134,737		139,336
Less—accumulated depreciation	(66,184)		(69,732)
Total property, plant and equipment, net	$	68,553	$	69,604

Schedule of Depreciation Expense

The Company recognized depreciation expense, which includes amortization of capitalized software development costs, as follows:


	Three months ended March 31,
	2022		2021

	(In thousands)
Cost of revenue	$	3,376	$	3,146
Research and development	592		453
Sales and marketing	334		284
General and administrative	302		293
Total depreciation expense	$	4,604	$	4,176

Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite Lived Intangible Assets

Intangible assets, net consisted of the following as of March 31, 2022:


	Gross Amount		Accumulated Amortization		Net Carrying Value		Amortization Period

	(In thousands)						(In years)
Customer relationships	$	152,005	$	(19,135)	$	132,870	15 - 20



Developed technology	80,234		(11,366)		68,868		10
Other, definite lived	2,828		(2,828)		—		2 - 7
Licenses, indefinite lived	764		—		764		Indefinite







Total intangible assets, net	$	235,831	$	(33,329)	$	202,502

Intangible assets, net consisted of the following as of December 31, 2021:


	Gross Amount		Accumulated Amortization		Net Carrying Value		Amortization Period

	(In thousands)						(In years)
Customer relationships	$	155,081	$	(16,861)	$	138,220	15 - 20



Developed technology	82,548		(10,315)		72,233		10
Other, definite lived	3,158		(3,158)		—		2 - 7
Licenses, indefinite lived	764		—		764		Indefinite







Total intangible assets, net	$	241,551	$	(30,334)	$	211,217

Schedule of Infinite Lived Intangible Assets

Intangible assets, net consisted of the following as of March 31, 2022:


	Gross Amount		Accumulated Amortization		Net Carrying Value		Amortization Period

	(In thousands)						(In years)
Customer relationships	$	152,005	$	(19,135)	$	132,870	15 - 20



Developed technology	80,234		(11,366)		68,868		10
Other, definite lived	2,828		(2,828)		—		2 - 7
Licenses, indefinite lived	764		—		764		Indefinite







Total intangible assets, net	$	235,831	$	(33,329)	$	202,502

Intangible assets, net consisted of the following as of December 31, 2021:


	Gross Amount		Accumulated Amortization		Net Carrying Value		Amortization Period

	(In thousands)						(In years)
Customer relationships	$	155,081	$	(16,861)	$	138,220	15 - 20



Developed technology	82,548		(10,315)		72,233		10
Other, definite lived	3,158		(3,158)		—		2 - 7
Licenses, indefinite lived	764		—		764		Indefinite







Total intangible assets, net	$	241,551	$	(30,334)	$	211,217

Schedule of Amortization Expense

The Company recognized amortization expense as follows:


	Three months ended March 31,
	2022		2021

	(In thousands)
Cost of revenue	$	2,032	$	2,176

Sales and marketing	2,534		2,692

Total amortization expense	$	4,566	$	4,868

Schedule of Future Estimated Amortization Expense

Future estimated amortization expense for definite lived intangible assets is as follows:


	As of March 31,
	2022

	(In thousands)
2022 (remaining)	$	13,488
2023	17,984
2024	17,984
2025	17,984
2026	17,984


Thereafter	116,314
	$	201,738

Debt (Tables)

3 Months Ended

Mar. 31, 2022

Debt Disclosure [Abstract]

Schedule of Net Carrying Amount of Liability and Equity Component of Notes

The net carrying amount of the liability components of the 2026 and 2028 Convertible Notes were as follows:


	As of March 31,		As of December 31,
	2022		2021

2026 Convertible Notes:	(In thousands)
Principal	$	400,000	$	400,000
Unamortized discount	—		(92,034)
Unamortized debt issuance costs	(7,831)		(6,043)
2026 Convertible Notes net carrying amount	$	392,169	$	301,923

2028 Convertible Notes:
Principal	$	250,000	$	250,000
Unamortized discount	—		(60,488)
Unamortized debt issuance costs	(6,442)		(4,995)
2028 Convertible Notes net carrying amount	$	243,558	$	184,517
Total net carrying amount	$	635,727	$	486,440

The net carrying amount of the equity components of the 2026 and 2028 Convertible Notes were as follows:


	As of March 31,		As of December 31,
	2022		2021

2026 Convertible Notes:	(In thousands)
Proceeds allocated to the conversion options (debt discount)	$	—	$	125,152
Issuance costs	—		(3,742)
2026 Convertible Notes net carrying amount	$	—	$	121,410

2028 Convertible Notes:
Proceeds allocated to the conversion options (debt discount)	$	—	$	66,908
Issuance costs	—		(2,019)
2028 Convertible Notes net carrying amount	$	—	$	64,889
Total net carrying amount	$	—	$	186,299

Schedule of Interest Income and Interest Expense Disclosure

The following table sets forth the interest expense recognized related to the 2026 and 2028 Convertible Notes:


	Three months ended March 31,
	2022		2021

2026 Convertible Notes:	(In thousands)
Contractual interest expense	$	250	$	250
Amortization of debt discount (1)	—		4,510
Amortization of debt issuance costs	495		296
Total interest expense related to the 2026 Convertible Notes	$	745	$	5,056

2028 Convertible Notes:
Contractual interest expense	$	313	$	52
Amortization of debt discount (1)	—		333
Amortization of debt issuance costs	265		28
Total interest expense related to the 2028 Convertible Notes	$	578	$	413
Total interest expense	$	1,323	$	5,469

Geographic Information (Tables)

3 Months Ended

Mar. 31, 2022

Segment Reporting [Abstract]

Schedule of Revenue by Geographical Area

The Company generates its revenue primarily in the United States. Revenue by geographic area is detailed in the table below (which is determined based on the customer billing address):


	Three months ended March 31,
	2022		2021

	(In thousands)

United States	$	115,885	$	100,798
International	15,479		12,681
Total	$	131,364	$	113,479

Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2022

Equity [Abstract]

Schedule of Reserved Shares of Common Stock for Issuance

The Company had reserved shares of Class A common stock for issuance under stock-based award agreements as follows:


	As of March 31,	As of December 31,
	2022	2021
Stock options issued and outstanding	164,114	180,209
Nonvested restricted stock units issued and outstanding	793,848	344,486
Stock-based awards available for grant under the 2017 Plan	3,625,235	3,060,674
	4,583,197	3,585,369

- Definition

Tabular disclosure of an entity's stock, including par or stated value per share, number and dollar amount of share subscriptions, shares authorized, shares issued, shares outstanding, number and dollar amount of shares held in an employee trust, dividend per share, total dividends, share conversion features, par value plus additional paid in capital, the value of treasury stock and other information necessary to a fair presentation, and EPS information. Stock by class includes common, convertible, and preferred stocks which are not redeemable or redeemable solely at the option of the issuer. Includes preferred stock with redemption features that are solely within the control of the issuer and mandatorily redeemable stock if redemption is required to occur only upon liquidation or termination of the reporting entity. If more than one issue is outstanding, state the title of each issue and the corresponding dollar amount; dollar amount of any shares subscribed but unissued and the deduction of subscriptions receivable there from; number of shares authorized, issued, and outstanding.

+ References

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-Topic 210
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-Name Accounting Standards Codification
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+ Details

Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2022

Share-based Payment Arrangement [Abstract]

Schedule of Stock Option Activity

The following summarizes the stock option activity for the periods presented:


	Number of options outstanding	Weighted- average exercise price (Per share)		Weighted- average remaining contract life (In years)	Aggregate intrinsic value (In thousands)
Outstanding as of December 31, 2021	180,209	$	10.14	3.39	$	11,104
Granted	—	—
Exercised	(16,095)	7.79
Forfeited or cancelled	—	—
Outstanding as of March 31, 2022	164,114	$	10.37	3.31	$	3,613

Options vested and exercisable at March 31, 2022	164,114	$	10.37	3.31	$	3,613
Options vested and expected to vest as of March 31, 2022	164,114	$	10.37	3.31	$	3,613


	Three months ended March 31,
		2022		2021

	(In thousands)
Aggregate intrinsic value of stock options exercised		$	576	$	7,697
Total estimated grant date fair value of options vested		—		21

Schedule of Restricted Stock Unit Activity

The following summarizes the RSU activity for the period presented:


	Number of awards outstanding	Weighted-average grant date fair value (Per share)
Nonvested RSUs as of December 31, 2021	344,486	$	82.38
Granted	627,724	62.66
Vested	(144,977)	56.09
Forfeited or cancelled	(33,385)	77.34
Nonvested RSUs as of March 31, 2022	793,848	$	71.99

Schedule of Stock-Based Compensation Expense

The Company recognized total stock-based compensation expense as follows:


	Three months ended March 31,
	2022		2021

	(In thousands)
Cost of revenue	$	99	$	101
Research and development	1,868		1,080
Sales and marketing	899		710
General and administrative	2,480		2,499
Total	$	5,346	$	4,390

Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2022

Retirement Benefits [Abstract]

Schedule of Accumulated Benefit Obligation in Excess of Plan Assets

Pretax amounts for net periodic benefit cost and other amounts for the defined benefit pension plans consisted of the following components:


	Three months ended March 31,
	2022			2021

	(In thousands)
Service cost	$	70		$	103
Interest cost	9			5
Return on plan assets	(7)			(4)
Net periodic pension cost	72			104







Total recognized in net periodic benefit cost and included in other comprehensive loss	$	72		$	104

Defined benefit cost:
Expected long-term rate of return on plan assets	0.90		%	0.50		%

Basic and Diluted Loss per Common Share (Tables)

3 Months Ended

Mar. 31, 2022

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The components of basic and diluted loss per share are as follows:


	Three months ended March 31,
	2022		2021

	(In thousands, except share and per share amounts)
Earnings per share


Net loss attributable to common stockholders	$	(6,814)	$	(5,316)
Net loss per share, basic and diluted	$	(0.27)	$	(0.21)
















Weighted average number of common shares outstanding, basic and diluted	25,220,052		25,015,948

Schedule of Anti-dilutive Common Shares Excluded from Calculation of Net Loss

The following common share equivalents were excluded from the weighted average shares used to calculate net loss per common share because their effects would have been anti-dilutive:


	As of March 31,
	2022	2021
Stock options issued and outstanding	164,114	196,433
Restricted stock units issued and outstanding	793,848	405,875
Convertible senior notes (1)	5,788,805	1,812,134
Total	6,746,767	2,414,442

________________________

Summary of Significant Accounting Policies - Schedule of Changes in Costs to Prior Periods (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Reclassification [Line Items]
Cost of revenue	$ 75,950	$ 62,321
Research and development	22,427	16,789
Sales and marketing	23,152	19,110
General and administrative	$ 16,705	15,296
Previously Reported
Reclassification [Line Items]
Cost of revenue		61,328
Research and development		13,333
Sales and marketing		11,992
General and administrative		$ 26,863

Summary of Significant Accounting Policies - Accounts Receivable and Current Expected Credit Losses (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Accounting Policies [Abstract]
Allowance for doubtful accounts	$ 1,680	$ 1,661
Unbilled accounts receivable	$ 35,515	$ 31,786

Summary of Significant Accounting Policies - Concentration of Credit Risk (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
One customer \| Individual customer \| Accounts receivable, net of allowance for doubtful accounts
Concentration Risk [Line Items]
Concentration risk (as a percent)	10.00%	10.00%

Summary of Significant Accounting Policies - Recently Adopted Accounting Standards (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Jan. 01, 2022	Dec. 31, 2021
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accumulated deficit	$ (74,931)			$ (76,867)
Additional paid-in capital	(349,949)			(502,477)
Convertible senior notes	635,727			$ 486,440
Interest Expense, Debt	1,323	$ 5,469
Accounting Standards Update 2020-06 \| Cumulative effect of adoption, adjusted balance
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accumulated deficit			$ 8,800
Additional paid-in capital			156,200
Deferred tax liability			1,000
Convertible senior notes			$ 148,400
Interest Expense, Debt	$ (6,600)

- Definition

The cumulative amount of the reporting entity's undistributed earnings or deficit.

+ References + Details

Fair Value Measurements - Assets Measured at Fair Value (Details) - Recurring - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total financial assets	$ 230,003	$ 241,157
Money market account
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	230,003	241,157
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total financial assets	230,003	241,157
Level 1 \| Money market account
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	230,003	241,157
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total financial assets	0	0
Level 2 \| Money market account
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total financial assets	0	0
Level 3 \| Money market account
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 0	$ 0

Fair Value Measurements - Additional Information (Details) - Convertible notes - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
2026 Convertible Notes
Debt Instrument [Line Items]
Fair value	$ 309.5	$ 427.1
2028 Convertible Notes
Debt Instrument [Line Items]
Fair value	$ 164.8	$ 194.2

Financial Statement Components - Schedule of Accounts Receivable, net of Allowances (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financial Statement Components [Abstract]
Trade accounts receivable	$ 32,256	$ 31,036
Unbilled accounts receivable	35,515	31,786
Allowance for doubtful accounts and reserve for expected credit losses	(1,680)	(1,661)
Other accounts receivable	2,736	411
Total accounts receivable, net	$ 68,827	$ 61,572

Financial Statement Components - Allowance For Doubtful Accounts (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance, beginning of period	$ (1,661)	$ (1,203)
Charged to bad debt expense	(141)	(48)
Deductions	111	10
Impact of foreign currency translation	11	23
Balance, end of period	$ (1,680)	$ (1,218)

Financial Statement Components - Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financial Statement Components [Abstract]
Accrued expense	$ 31,571	$ 31,264
Accrued compensation and benefits	11,731	19,042
Accrued sales, use, VAT and telecommunications related taxes	17,429	11,046
Current portion of finance lease	170	177
Other accrued expenses	4,579	4,392
Total accrued expenses and other current liabilities	$ 65,480	$ 65,921

Right-of-Use Asset and Lease Liabilities - Additional Information (Details)				3 Months Ended
	Jun. 05, 2021 USD ($) a	Jun. 04, 2021 USD ($) a	May 27, 2021 USD ($) ft² lease	Mar. 31, 2022 USD ($) ft² lease	Mar. 31, 2021 USD ($)
Lessee, Lease, Description [Line Items]
Option to extend, term (up to)				5 years
Number of leases with early-termination option \| lease				1
Short-term operating lease expense				$ 100,000	$ 300,000
Right-of-use assets obtained in exchange for new operating lease liabilities				3,453,000	$ 0
Property
Lessee, Lease, Description [Line Items]
Land (acres) \| a	17.06	40
Consideration for the proposed Land purchase		$ 30,000,000
Lease incentive		$ 5,800,000
Property \| Developer
Lessee, Lease, Description [Line Items]
Area of land sold (acres) \| a	23.76
Proceeds from sale of land	$ 17,500,000
Lease not yet commenced
Lessee, Lease, Description [Line Items]
Office space (in square foot) \| ft²			534,000
Term of lease			20 years
Number of option to extend \| lease			2
Term of option to extend			10 years
Market rental rate (as a percent)			100.00%
Escrow to fund			$ 3,000,000
Right-of-use assets obtained in exchange for new operating lease liabilities				$ 0
Lease not yet commenced \| Developer
Lessee, Lease, Description [Line Items]
Security deposit			$ 2,500,000
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease term (in years)				4 months
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term (in years)				4 years 9 months
Relay, Inc
Lessee, Lease, Description [Line Items]
Sublease area (in square foot) \| ft²				17,073

Right-of-Use Asset and Lease Liabilities - Future Minimum Sub-lease Receipts (Details) $ in Thousands	Mar. 31, 2022 USD ($)
Leases [Abstract]
2022 (remaining)	$ 134

Right-of-Use Asset and Lease Liabilities - Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Leases [Abstract]
Operating lease cost	$ 2,138	$ 1,614
Depreciation of assets	50	47
Interest on lease liabilities	3	0
Sublease income	(96)	(96)
Total net lease cost	$ 2,095	$ 1,565

Right-of-Use Asset and Lease Liabilities - Supplemental Balance Sheet Lease Information (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Assets:
Operating lease assets	$ 15,419	$ 14,061
Finance lease assets	358	373
Total leased assets	15,777	14,434
Current
Operating	7,208	5,807
Finance	170	177
Non-current
Operating	10,711	10,958
Finance	195	202
Total lease liabilities	$ 18,284	$ 17,144
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued expenses and other current liabilities	Accrued expenses and other current liabilities
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other liabilities	Other liabilities
Accumulated amortization	$ 16,400	$ 14,800
Accumulated depreciation of assets under finance leases	$ 300	$ 200

Right-of-Use Asset and Lease Liabilities - Supplemental Cash Flow and Other Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$ 2,112	$ 1,371
Financing cash flows from finance leases	48	44
Lease liabilities	$ 2,160	$ 1,415
Weighted average remaining lease term (in years)
Operating leases	2 years 7 months 20 days	3 years 6 months 10 days
Finance leases	2 years 5 months 15 days	2 years 10 months 9 days
Weighted average discount rate
Operating leases	4.57%	4.81%
Finance leases	3.93%	4.00%

Right-of-Use Asset and Lease Liabilities - Schedule of Maturities of Lease Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Operating Leases
2022 (remaining)	$ 5,731
2023	8,371
2024	2,636
2025	1,611
2026	679
Total lease payments	19,028
Less: imputed interest	(1,109)
Total lease obligations	17,919
Less: current obligations	(7,208)	$ (5,807)
Long-term lease obligations	10,711	10,958
Finance Leases
2022 (remaining)	145
2023	129
2024	85
2025	21
2026	2
Total lease payments	382
Less: imputed interest	(17)
Total lease obligations	365
Less: current obligations	(170)	(177)
Long-term lease obligations	$ 195	$ 202

Property, Plant and Equipment - Summary of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Total cost	$ 134,737	$ 139,336
Less—accumulated depreciation	(66,184)	(69,732)
Total property, plant and equipment, net	68,553	69,604
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total cost	2,202	2,240
Computer and office equipment
Property, Plant and Equipment [Line Items]
Total cost	5,399	5,419
Telecommunications equipment
Property, Plant and Equipment [Line Items]
Total cost	73,182	76,963
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total cost	6,245	6,970
Software
Property, Plant and Equipment [Line Items]
Total cost	6,299	6,942
Internal-use software development
Property, Plant and Equipment [Line Items]
Total cost	22,361	22,917
Automobile
Property, Plant and Equipment [Line Items]
Total cost	628	616
Land
Property, Plant and Equipment [Line Items]
Total cost	$ 18,421	$ 17,269

Property, Plant and Equipment - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Capitalized software development costs, additions	$ 0.7	$ 1.1
Amortization of capitalized software development costs	0.5	$ 0.4
Capitalized implementation costs related to cloud computing arrangements	0.4
Cost of assets under finance leases	0.6
Accumulated depreciation of assets under finance leases	0.3		$ 0.2
Prepaid expenses and other current assets
Property, Plant and Equipment [Line Items]
Capitalized implementation costs related to cloud computing arrangements	0.1
Other long-term assets
Property, Plant and Equipment [Line Items]
Capitalized implementation costs related to cloud computing arrangements	$ 0.3

Property, Plant and Equipment - Depreciation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Depreciation Expense [Line Items]
Total depreciation expense	$ 4,604	$ 4,176
Cost of revenue
Depreciation Expense [Line Items]
Total depreciation expense	3,376	3,146
Research and development
Depreciation Expense [Line Items]
Total depreciation expense	592	453
Sales and marketing
Depreciation Expense [Line Items]
Total depreciation expense	334	284
General and administrative
Depreciation Expense [Line Items]
Total depreciation expense	$ 302	$ 293

Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated Amortization	$ (33,329)		$ (30,334)
Finite-lived intangible assets, net	201,738
Gross Amount	235,831		241,551
Net Carrying Value	202,502		211,217
Licenses, indefinite lived
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Licenses, indefinite lived	764		764
Customer relationships
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Finite-lived intangible assets, gross	152,005		155,081
Accumulated Amortization	(19,135)		(16,861)
Finite-lived intangible assets, net	$ 132,870		138,220
Customer relationships \| Minimum
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortization Period	15 years	15 years
Customer relationships \| Maximum
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortization Period	20 years	20 years
Developed technology
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Finite-lived intangible assets, gross	$ 80,234		82,548
Accumulated Amortization	(11,366)		(10,315)
Finite-lived intangible assets, net	$ 68,868		72,233
Amortization Period	10 years	10 years
Other, definite lived
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Finite-lived intangible assets, gross	$ 2,828		3,158
Accumulated Amortization	(2,828)		(3,158)
Finite-lived intangible assets, net	$ 0		$ 0
Other, definite lived \| Minimum
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortization Period	2 years	2 years
Other, definite lived \| Maximum
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortization Period	7 years	7 years

Intangible Assets - Additional Information (Details)	3 Months Ended
Intangible Assets - Additional Information (Details)	Mar. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Weighted average useful life	11 years 9 months 18 days

Intangible Assets - Amortization Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Goodwill [Line Items]
Total amortization expense	$ 4,566	$ 4,868
Cost of revenue
Goodwill [Line Items]
Total amortization expense	2,032	2,176
Sales and marketing
Goodwill [Line Items]
Total amortization expense	$ 2,534	$ 2,692

Intangible Assets - Future Estimated Amortization Expense (Details) $ in Thousands	Mar. 31, 2022 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2022 (remaining)	$ 13,488
2023	17,984
2024	17,984
2025	17,984
2026	17,984
Thereafter	116,314
Finite-lived intangible assets, net	$ 201,738

Debt - 2026 Convertible Notes (Details)		3 Months Ended		6 Months Ended
Debt - 2026 Convertible Notes (Details)	Feb. 28, 2020 USD ($) day $ / shares	Mar. 31, 2022 USD ($) $ / shares	Mar. 31, 2021	Mar. 31, 2022 USD ($) day $ / shares	Dec. 31, 2021 USD ($) $ / shares	Mar. 16, 2021 $ / shares	Jan. 01, 2021 USD ($)
Class A voting common stock
Debt Instrument [Line Items]
Common stock, par value (in usd per share) \| $ / shares	$ 0.001	$ 0.001		$ 0.001	$ 0.001	$ 0.001
2026 Convertible Notes
Debt Instrument [Line Items]
Redemption period scheduled trading day before the maturity date	40 days
Cash redemption price (as a percent)	100.00%
2026 Convertible Notes \| Convertible notes
Debt Instrument [Line Items]
Principal amount	$ 400,000,000	$ 400,000,000		$ 400,000,000	$ 400,000,000
Stated rate (as a percent)	0.25%
Total net proceeds	$ 344,700,000
Conversion price (in usd per share) \| $ / shares	$ 91.03
Conversion option	$ 125,200,000
Effective interest rate (as a percent)	6.763%
Carrying amount of equity component	$ 57,500,000
Annual effective interest rate (as a percent)	6.907%
Issuance costs		$ 0		$ 0	$ 3,742,000
2026 Convertible Notes \| Convertible notes \| Cumulative effect of adoption, adjusted balance \| Accounting Standards Update 2020-06
Debt Instrument [Line Items]
Effective interest rate (as a percent)							0.513%
Issuance costs attributable to the liability component							$ 8,200,000
Issuance costs							$ 3,700,000
2026 Convertible Notes \| Convertible notes \| Conversion option 2
Debt Instrument [Line Items]
Trading days \| day	5
Consecutive trading days \| day	10
2026 Convertible Notes \| Convertible notes \| Class A voting common stock
Debt Instrument [Line Items]
Conversion ratio	0.0109857	0.0109857	0.0109857
2026 Convertible Notes \| Convertible notes \| Class A voting common stock \| Conversion option 1
Debt Instrument [Line Items]
Stock price trigger (as a percent)	130.00%			130.00%
Trading days \| day	20			20
Consecutive trading days \| day	30			30
2026 Convertible Notes \| Convertible notes \| Class A voting common stock \| Conversion option 2
Debt Instrument [Line Items]
Stock price trigger (as a percent)	98.00%

Debt - 2028 Convertible Notes (Details)		3 Months Ended
Debt - 2028 Convertible Notes (Details)	Mar. 16, 2021 USD ($) day $ / shares	Mar. 31, 2022 USD ($) $ / shares	Mar. 31, 2021	Dec. 31, 2021 USD ($) $ / shares	Jan. 01, 2021 USD ($)	Feb. 28, 2020 $ / shares
Class A voting common stock
Debt Instrument [Line Items]
Common stock, par value (in usd per share) \| $ / shares	$ 0.001	$ 0.001		$ 0.001		$ 0.001
2028 Convertible Notes \| Convertible notes
Debt Instrument [Line Items]
Principal amount	$ 250,000,000	$ 250,000,000		$ 250,000,000
Stated rate (as a percent)	0.50%
Total net proceeds	$ 217,000,000
Conversion price (in usd per share) \| $ / shares	$ 179.27
Cash redemption price (as a percent)	100.00%
Conversion option	$ 66,900,000
Effective interest rate (as a percent)	5.125%
Carrying amount of equity component	$ 39,400,000
Annual effective interest rate (as a percent)	4.959%
Issuance costs		$ 0		$ 2,019,000
2028 Convertible Notes \| Convertible notes \| Cumulative effect of adoption, adjusted balance \| Accounting Standards Update 2020-06
Debt Instrument [Line Items]
Effective interest rate (as a percent)					0.442%
Issuance costs attributable to the liability component					$ 5,500,000
Issuance costs					$ 2,000,000
2028 Convertible Notes \| Convertible notes \| Class A voting common stock
Debt Instrument [Line Items]
Conversion ratio	0.0055781	0.0055781	0.0055781
2028 Convertible Notes \| Convertible notes \| Conversion option 1
Debt Instrument [Line Items]
Trading days \| day	20
Consecutive trading days \| day	30
2028 Convertible Notes \| Convertible notes \| Conversion option 1 \| Class A voting common stock
Debt Instrument [Line Items]
Stock price trigger (as a percent)	130.00%
2028 Convertible Notes \| Convertible notes \| Conversion option 2
Debt Instrument [Line Items]
Trading days \| day	5
Consecutive trading days \| day	10
2028 Convertible Notes \| Convertible notes \| Conversion option 2 \| Class A voting common stock
Debt Instrument [Line Items]
Stock price trigger (as a percent)	98.00%

Debt - Schedule of Debt (Details) - Convertible notes - USD ($)	Mar. 31, 2022	Dec. 31, 2021	Mar. 16, 2021	Feb. 28, 2020
Debt Instrument [Line Items]
Total net carrying amount	$ 635,727,000	$ 486,440,000
Total net carrying amount	0	186,299,000
2026 Convertible Notes
Debt Instrument [Line Items]
Principal	400,000,000	400,000,000		$ 400,000,000
Unamortized discount	0	(92,034,000)
Unamortized debt issuance costs	(7,831,000)	(6,043,000)
Total net carrying amount	392,169,000	301,923,000
Proceeds allocated to the conversion options (debt discount)	0	125,152,000
Issuance costs	0	(3,742,000)
Total net carrying amount	0	121,410,000
2028 Convertible Notes
Debt Instrument [Line Items]
Principal	250,000,000	250,000,000	$ 250,000,000
Unamortized discount	0	(60,488,000)
Unamortized debt issuance costs	(6,442,000)	(4,995,000)
Total net carrying amount	243,558,000	184,517,000
Proceeds allocated to the conversion options (debt discount)	0	66,908,000
Issuance costs	0	(2,019,000)
Total net carrying amount	$ 0	$ 64,889,000

Debt - Interest Income and Interest Expense Disclosure (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Debt Instrument [Line Items]
Total interest expense	$ 1,323	$ 5,469
2026 Convertible Notes
Debt Instrument [Line Items]
Contractual interest expense	250	250
Amortization of debt discount (1)	0	4,510
Amortization of debt issuance costs	495	296
Total interest expense	745	5,056
2028 Convertible Notes
Debt Instrument [Line Items]
Contractual interest expense	313	52
Amortization of debt discount (1)	0	333
Amortization of debt issuance costs	265	28
Total interest expense	$ 578	$ 413

Debt - Convertible Senior Notes and Capped Call Transactions (Details) - USD ($) $ / shares in Units, $ in Millions	Mar. 16, 2021	Feb. 28, 2020
Debt Instrument [Line Items]
Net cost of capped call purchase	$ 25.5	$ 43.3
Class A voting common stock
Debt Instrument [Line Items]
Capped call shares (in shares)	1,394,525	4,394,276
Convertible notes \| 2026 Convertible Notes
Debt Instrument [Line Items]
Initial conversion strike price (in usd per share)		$ 91.03
Initial cap price (in usd per share)		$ 137.40
Convertible notes \| 2028 Convertible Notes
Debt Instrument [Line Items]
Initial conversion strike price (in usd per share)	$ 179.27
Initial cap price (in usd per share)	$ 260.76

Geographic Information - Reconciliation of Revenue by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]
Assets	$ 1,054,196		$ 1,065,539
Revenue	131,364	$ 113,479
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	115,885	100,798
International
Revenues from External Customers and Long-Lived Assets [Line Items]
Assets	11,900		$ 9,200
Revenue	$ 15,479	$ 12,681

- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

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+ Details

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details

Stockholders' Equity - Preferred Stock (Details) - $ / shares	Mar. 31, 2022	Dec. 31, 2021
Equity [Abstract]
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, par value (in usd per share)	$ 0.001	$ 0.001
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0

Stockholders' Equity - Common Stock (Details)	Mar. 31, 2022 vote $ / shares shares	Dec. 31, 2021 vote $ / shares shares	Mar. 16, 2021 $ / shares	Feb. 28, 2020 $ / shares
Class A voting common stock
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, par value (in usd per share) \| $ / shares	$ 0.001	$ 0.001	$ 0.001	$ 0.001
Common stock voting rights \| vote	1	1
Common stock, shares issued (in shares)	23,309,031	23,177,988
Common stock, shares outstanding (in shares)	23,309,031	23,177,988
Class B voting common stock
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	20,000,000	20,000,000
Common stock, par value (in usd per share) \| $ / shares	$ 0.001	$ 0.001
Common stock voting rights \| vote	10	10
Common stock, shares issued (in shares)	1,965,170	1,965,170
Common stock, shares outstanding (in shares)	1,965,170	1,965,170

Stockholders' Equity - Reserved Shares of Common Stock for Issuance (Details) - shares	Mar. 31, 2022	Dec. 31, 2021
Class of Stock [Line Items]
Common stock reserved for future issuance (in shares)	4,583,197	3,585,369
Stock options issued and outstanding
Class of Stock [Line Items]
Common stock reserved for future issuance (in shares)	164,114	180,209
Nonvested restricted stock units issued and outstanding
Class of Stock [Line Items]
Common stock reserved for future issuance (in shares)	793,848	344,486
Stock-based awards available for grant under the 2017 Plan
Class of Stock [Line Items]
Common stock reserved for future issuance (in shares)	3,625,235	3,060,674

Stock-Based Compensation - Additional Information (Details) - USD ($)				3 Months Ended
	Jan. 01, 2022	Jan. 01, 2018	Nov. 09, 2017	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for future issuance (in shares)				4,583,197		3,585,369
Unrecognized cost for stock based compensation				$ 0
Stock options issued and outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)				0	0
Restricted stock units issued and outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for future issuance (in shares)				793,848		344,486
Unrecognized compensation cost related to non-vested RSUs				$ 53,200,000
Unrecognized cost for stock based compensation, period for recognition (in years)				3 years 4 months 2 days
2010 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant (in shares)			0
2017 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for future issuance (in shares)			1,050,000
Common stock reserved for future issuance, percent increase		5.00%
Increase in shares available for grant (in shares)	1,158,900
2017 Plan \| Stock options issued and outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			4 years
Contractual life			10 years
2017 Plan \| Restricted stock units issued and outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service period			4 years
2017 Plan \| Restricted stock units issued and outstanding \| Non-employee Board of Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage (as a percent)			25.00%
2017 Plan \| Restricted stock units issued and outstanding \| Executives
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			4 years
2017 Plan \| Restricted stock units issued and outstanding \| Executives \| Year one vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage (as a percent)			50.00%
2017 Plan \| Restricted stock units issued and outstanding \| Executives \| First quarter vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage (as a percent)			12.50%
2017 Plan \| Restricted stock units issued and outstanding \| Executives \| Second quarter vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage (as a percent)			12.50%
2017 Plan \| Restricted stock units issued and outstanding \| Executives \| Third quarter vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage (as a percent)			12.50%
2017 Plan \| Restricted stock units issued and outstanding \| Executives \| First quarter vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage (as a percent)			12.50%
2017 Plan \| Restricted stock units issued and outstanding \| Executives \| Year two, three and four vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage (as a percent)			50.00%

Stock-Based Compensation - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021
Aggregate intrinsic value (In thousands)
Aggregate intrinsic value of stock options exercised	$ 576		$ 7,697
Total estimated grant date fair value of options vested	$ 0		$ 21
Stock options issued and outstanding
Number of options outstanding
Beginning balance (in shares)	180,209
Granted (in shares)	0		0
Exercised (in shares)	(16,095)
Forfeited or cancelled (in shares)	0
Ending balance (in shares)	164,114	180,209
Options vested and exercisable (in shares)	164,114
Options vested and expected to vest (in shares)	164,114
Weighted- average exercise price (Per share)
Beginning balance (in usd per share)	$ 10.14
Granted (in usd per share)	0
Exercised (in usd per share)	7.79
Forfeited or cancelled (in usd per share)	0
Ending balance (in usd per share)	10.37	$ 10.14
Weighted-average exercise price, Options vested and exercisable (in usd per share)	10.37
Weighted-average exercise price, Options vested and expected to vest (in usd per share)	$ 10.37
Weighted- average remaining contract life (In years)
Outstanding (in years)	3 years 3 months 21 days		3 years 4 months 20 days
Options vested and exercisable at March 31, 2022	3 years 3 months 21 days
Options vested and expected to vest as of March 31, 2022	3 years 3 months 21 days
Aggregate intrinsic value (In thousands)
Options outstanding	$ 3,613	$ 11,104
Options vested and exercisable at March 31, 2022	3,613
Options vested and expected to vest as of March 31, 2022	$ 3,613

Stock-Based Compensation - Restricted Stock Unit Activity (Details) - Restricted stock units issued and outstanding	3 Months Ended
	Mar. 31, 2022 $ / shares shares
Number of awards outstanding
Beginning balance (in shares) \| shares	344,486
Granted (in shares) \| shares	627,724
Vested (in shares) \| shares	(144,977)
Forfeited or cancelled (in shares) \| shares	(33,385)
Ending balance (in shares) \| shares	793,848
Weighted-average grant date fair value (Per share)
Beginning balance (in usd per share) \| $ / shares	$ 82.38
Granted (in usd per share) \| $ / shares	62.66
Vested (in usd per share) \| $ / shares	56.09
Forfeited or cancelled (in usd per share) \| $ / shares	77.34
Ending balance (in usd per share) \| $ / shares	$ 71.99

Stock-Based Compensation - Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	$ 5,346	$ 4,390
Cost of revenue
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	99	101
Research and development
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	1,868	1,080
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	899	710
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	$ 2,480	$ 2,499

Commitments and Contingencies - Additional Information (Details) $ in Thousands	May 27, 2021 USD ($) lease	Mar. 31, 2022 USD ($)	Aug. 01, 2020 USD ($)
Lessee, Lease, Description [Line Items]
Annual minimum commitment, 2022			$ 300
Annual minimum commitment, 2021			$ 600
Non-cancellable purchase obligation		$ 13,700
Non-cancellable purchase obligation, fulfilled within a year		10,000
Lease payments of initial term		$ 19,028
Project
Lessee, Lease, Description [Line Items]
Commencement date, rent abatement period	120 days
Commencement delivered period	12 months
Number of option to extend \| lease	2
Term of option to extend	10 years
Base rent percentage (as a percent)	1.85%
Lease payments of initial term	$ 495,700
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term (in years)		4 years 9 months

Employee Benefit Plans - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Retirement Benefits [Abstract]
Matching contributions	$ 1.2	$ 0.9

Employee Benefit Plans - Summary of Net Periodic Cost of Pension and Postretirement Benefit Plans (Details) - Non-U.S. - Pension Plan - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 70	$ 103
Interest cost	9	5
Return on plan assets	(7)	(4)
Net periodic pension cost	72	104
Total recognized in net periodic benefit cost and included in other comprehensive loss	$ 72	$ 104
Expected long-term rate of return on plan assets	0.90%	0.50%

Income Taxes - Additional Information (Details)	3 Months Ended
Income Taxes - Additional Information (Details)	Mar. 31, 2022	Mar. 31, 2021
Income Tax Disclosure [Abstract]
Effective income tax rate (as a percent)	(2.70%)	5.90%

Related Parties (Details) - Relay - Master Services Agreement - Affiliated Entity - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Related Party Transaction [Line Items]
Revenue from related parties	$ 0.4	$ 0.5
Receivable	$ 0.3		$ 0.1

- Definition

Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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+ Details

Basic and Diluted Loss per Common Share - Components of Basic and Diluted Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Net loss attributable to common stockholders	$ (6,814)	$ (5,316)
Net loss per share, basic and diluted
Net loss per share, basic (in usd per share)	$ (0.27)	$ (0.21)
Net loss per share, diluted (in usd per share)	$ (0.27)	$ (0.21)
Weighted average number of common shares outstanding, basic and diluted
Weighted average number of common shares outstanding, basic (in shares)	25,220,052	25,015,948
Weighted average number of common shares outstanding, diluted (in shares)	25,220,052	25,015,948

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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+ Details

Basic and Diluted Loss per Common Share - Schedule of Antidilutive Common Share Equivalents Excluded from Earnings Per Share (Details)			3 Months Ended
	Mar. 16, 2021	Feb. 28, 2020	Mar. 31, 2022 shares	Mar. 31, 2021 shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)			6,746,767	2,414,442
Convertible notes \| 2026 Convertible Notes \| Class A voting common stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Conversion ratio		0.0109857	0.0109857	0.0109857
Convertible notes \| 2028 Convertible Notes \| Class A voting common stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Conversion ratio	0.0055781		0.0055781	0.0055781
Stock options issued and outstanding
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)			164,114	196,433
Restricted stock units issued and outstanding
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)			793,848	405,875
Convertible senior notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)			5,788,805	1,812,134