Edgio (EGIOQ) 10-Q 5 Nov 21 2021 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2021	Oct. 29, 2021
Cover [Abstract]
Document Type	10-Q
Document Period End Date	Sep. 30, 2021
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	001-33508
Entity Registrant Name	Limelight Networks, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	20-1677033
Entity Central Index Key	0001391127
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Address, Address Line One	1465 North Scottsdale Road
Entity Address, Address Line Two	Suite 500
Entity Address, City or Town	Scottsdale
Entity Address, State or Province	AZ
Entity Address, Postal Zip Code	85257
City Area Code	602
Local Phone Number	850-5000
Title of 12(b) Security	Common Stock, par value $0.001 per share
Trading Symbol	LLNW
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 Common Stock, Shares Outstanding		133,811,874

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 39,585	$ 46,795
Marketable securities	36,201	76,928
Accounts receivable, net	46,179	31,675
Income taxes receivable	62	68
Prepaid expenses and other current assets	13,396	15,588
Total current assets	135,423	171,054
Property and equipment, net	36,392	46,418
Operating lease right of use assets	7,683	10,150
Marketable securities, less current portion	40	40
Deferred income taxes	1,693	1,530
Goodwill	105,221	77,753
Intangible assets, net	23,680	0
Other assets	5,972	7,233
Total assets	316,104	314,178
Current liabilities:
Accounts payable	13,768	4,587
Deferred revenue	7,965	933
Operating lease liability obligations	1,966	2,465
Income taxes payable	443	253
Other current liabilities	17,950	17,560
Total current liabilities	42,092	25,798
Convertible senior notes, net	121,576	100,945
Operating lease liability obligations, less current portion	10,045	11,265
Deferred income taxes	308	279
Deferred revenue, less current portion	307	220
Other long-term liabilities	453	479
Total liabilities	174,781	138,986
Commitments and contingencies
Stockholders’ equity:
Convertible preferred stock, $0.001 par value; 7,500 shares authorized; no shares issued and outstanding	0	0
Common stock, $0.001 par value; 300,000 shares authorized; 133,812 and 123,653 shares issued and outstanding at September 30, 2021 and December 31, 2020, respectively	134	124
Additional paid-in capital	571,268	556,512
Accumulated other comprehensive loss	(8,491)	(7,511)
Accumulated deficit	(421,588)	(373,933)
Total stockholders’ equity	141,323	175,192
Total liabilities and stockholders’ equity	$ 316,104	$ 314,178

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Convertible preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Convertible preferred stock, shares authorized (in shares)	7,500,000	7,500,000
Convertible preferred stock, shares issued (in shares)	0	0
Convertible preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	300,000,000	300,000,000
Common stock, shares issued (in shares)	133,812,000	123,653,000
Common stock, shares outstanding (in shares)	133,812,000	123,653,000

Unaudited Consolidated Statemen

Unaudited Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Revenue		$ 55,202	$ 59,243	$ 154,745	$ 174,801
Cost of revenue:
Cost of services	[1]	33,687	31,905	99,708	92,406
Depreciation — network		5,685	5,602	17,293	16,112
Total cost of revenue		39,372	37,507	117,001	108,518
Gross profit		15,830	21,736	37,744	66,283
Operating expenses:
General and administrative		10,532	7,751	30,944	23,820
Sales and marketing		5,987	10,456	21,619	33,279
Research and development		5,205	5,425	16,520	16,614
Depreciation and amortization		730	384	1,818	1,049
Restructuring charges		1,770	0	10,798	0
Total operating expenses		24,224	24,016	81,699	74,762
Operating loss		(8,394)	(2,280)	(43,955)	(8,479)
Other income (expense):
Interest expense		(1,308)	(1,674)	(3,899)	(1,756)
Interest income		17	10	104	40
Other, net		(209)	25	(864)	(396)
Total other expense		(1,500)	(1,639)	(4,659)	(2,112)
Loss before income taxes		(9,894)	(3,919)	(48,614)	(10,591)
Income tax expense		211	66	718	377
Net loss		$ (10,105)	$ (3,985)	$ (49,332)	$ (10,968)
Net loss per share:
Basic (in dollars per share)		$ (0.08)	$ (0.03)	$ (0.39)	$ (0.09)
Diluted (in dollars per share)		$ (0.08)	$ (0.03)	$ (0.39)	$ (0.09)
Weighted average shares used in per share calculation:
Basic (shares)		126,791	122,363	125,710	120,519
Diluted (shares)		126,791	122,363	125,710	120,519
[1]	Cost of services excludes amortization related to certain intangibles, including technology, customer relationships, and trade names, which are included in depreciation and amortization

Unaudited Consolidated Statem_2

Unaudited Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net loss	$ (10,105)	$ (3,985)	$ (49,332)	$ (10,968)
Other comprehensive income (loss), net of tax:
Unrealized gain (loss) on investments	3	(80)	32	(80)
Foreign currency translation gain (loss)	(529)	732	(1,012)	(89)
Other comprehensive income (loss)	(526)	652	(980)	(169)
Comprehensive loss	$ (10,631)	$ (3,333)	$ (50,312)	$ (11,137)

Unaudited Consolidated Statem_3

Unaudited Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Cumulative effect of adoption of new accounting pronouncement	Common Stock	Additional Paid-In Capital	Additional Paid-In CapitalCumulative effect of adoption of new accounting pronouncement	Accumulated Other Comprehensive Loss	Accumulated Deficit	Accumulated DeficitCumulative effect of adoption of new accounting pronouncement
Beginning balance, shares at Dec. 31, 2019			118,368
Beginning balance at Dec. 31, 2019	$ 166,537		$ 118	$ 530,285		$ (9,210)	$ (354,656)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(10,968)						(10,968)
Change in unrealized gain on available-for-sale investments, net of taxes	(80)					(80)
Foreign currency translation adjustment, net of taxes	(89)					(89)
Exercise of common stock options, shares			2,672
Exercise of common stock options	7,610		$ 3	7,607
Vesting of restricted stock units, shares			2,233
Vesting of restricted stock units	7		$ 2	5
Restricted stock units surrendered in lieu of withholding taxes, shares			(749)
Restricted stock units surrendered in lieu of withholding taxes	(3,986)			(3,986)
Issuance of common stock under employee stock purchase plan, shares			300
Issuance of common stock under employee stock purchase plan	1,074			1,074
Share-based compensation	12,240			12,240
Equity component of convertible senior notes, net	21,747			21,747
Purchase of capped calls related to issuance of convertible senior notes	(16,413)			(16,413)
Ending balance, shares at Sep. 30, 2020			122,824
Ending balance at Sep. 30, 2020	$ 177,679		$ 123	552,559		(9,379)	(365,624)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting standards update	Accounting Standards Update 2020-06 [Member]
Beginning balance, shares at Dec. 31, 2019			118,368
Beginning balance at Dec. 31, 2019	$ 166,537		$ 118	530,285		(9,210)	(354,656)
Ending balance, shares at Dec. 31, 2020	123,653		123,653
Ending balance at Dec. 31, 2020	$ 175,192	$ (20,056)	$ 124	556,512	$ (21,733)	(7,511)	(373,933)	$ 1,677
Beginning balance, shares at Jun. 30, 2020			121,692
Beginning balance at Jun. 30, 2020	169,815		$ 122	541,363		(10,031)	(361,639)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(3,985)						(3,985)
Change in unrealized gain on available-for-sale investments, net of taxes	(80)					(80)
Foreign currency translation adjustment, net of taxes	732					732
Exercise of common stock options, shares			812
Exercise of common stock options	2,599		$ 1	2,598
Vesting of restricted stock units, shares			488
Restricted stock units surrendered in lieu of withholding taxes, shares			(168)
Restricted stock units surrendered in lieu of withholding taxes	(1,041)			(1,041)
Share-based compensation	4,305			4,305
Equity component of convertible senior notes, net	21,747			21,747
Purchase of capped calls related to issuance of convertible senior notes	(16,413)			(16,413)
Ending balance, shares at Sep. 30, 2020			122,824
Ending balance at Sep. 30, 2020	$ 177,679		$ 123	552,559		(9,379)	(365,624)
Beginning balance, shares at Dec. 31, 2020	123,653		123,653
Beginning balance at Dec. 31, 2020	$ 175,192	$ (20,056)	$ 124	556,512	$ (21,733)	(7,511)	(373,933)	$ 1,677
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(49,332)						(49,332)
Change in unrealized gain on available-for-sale investments, net of taxes	32					32
Foreign currency translation adjustment, net of taxes	(1,012)					(1,012)
Exercise of common stock options, shares			1,935
Exercise of common stock options	4,547		$ 2	4,545
Vesting of restricted stock units, shares			1,401
Vesting of restricted stock units	0		$ 1	(1)
Restricted stock units surrendered in lieu of withholding taxes, shares			(410)
Restricted stock units surrendered in lieu of withholding taxes	(1,314)			(1,314)
Issuance of common stock under employee stock purchase plan, shares			355
Issuance of common stock under employee stock purchase plan	913			913
Share-based compensation	13,920			13,920
Issuance of common stock for business acquisition, shares			6,878
Issuance of common stock for business acquisition	$ 18,433		$ 7	18,426
Ending balance, shares at Sep. 30, 2021	133,812		133,812
Ending balance at Sep. 30, 2021	$ 141,323		$ 134	571,268		(8,491)	(421,588)
Beginning balance, shares at Jun. 30, 2021			126,705
Beginning balance at Jun. 30, 2021	130,884		$ 127	550,205		(7,965)	(411,483)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(10,105)						(10,105)
Change in unrealized gain on available-for-sale investments, net of taxes	3					3
Foreign currency translation adjustment, net of taxes	(529)					(529)
Vesting of restricted stock units, shares			306
Restricted stock units surrendered in lieu of withholding taxes, shares			(77)
Restricted stock units surrendered in lieu of withholding taxes	(217)			(217)
Share-based compensation	2,854			2,854
Issuance of common stock for business acquisition, shares			6,878
Issuance of common stock for business acquisition	$ 18,433		$ 7	18,426
Ending balance, shares at Sep. 30, 2021	133,812		133,812
Ending balance at Sep. 30, 2021	$ 141,323		$ 134	$ 571,268		$ (8,491)	$ (421,588)

Unaudited Consolidated Statem_4

Unaudited Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Operating activities
Net loss	$ (10,105)	$ (3,985)	$ (49,332)	$ (10,968)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization			19,111	17,161
Share-based compensation			16,477	12,238
Foreign currency remeasurement gain			(66)	(113)
Deferred income taxes			(198)	(80)
Gain on sale of property and equipment			(219)	(1)
Accounts receivable charges			1,047	476	$ 801
Amortization of premium on marketable securities			1,597	87
Noncash interest expense			604	868
Changes in operating assets and liabilities:
Accounts receivable			(13,037)	(8,221)
Prepaid expenses and other current assets			1,678	(2,679)
Income taxes receivable			4	3
Other assets			2,017	2,504
Accounts payable and other current liabilities			8,163	8,159
Deferred revenue			4,640	(109)
Income taxes payable			210	(15)
Other long term liabilities			(26)	265
Net cash (used in) provided by operating activities			(7,330)	19,575
Investing activities
Purchases of marketable securities			(44,838)	(52,690)
Sale and maturities of marketable securities			84,000	2,900
Purchases of property and equipment			(11,909)	(22,128)
Proceeds from sale of property and equipment			219	1
Acquisition of business, net of cash acquired			(30,968)	0
Net cash used in investing activities			(3,496)	(71,917)
Financing activities
Proceeds from issuance of debt, net			0	121,600
Purchase of capped calls			0	(16,413)
Payment of debt issuance costs			(30)	(784)
Payments of employee tax withholdings related to restricted stock vesting			(1,315)	(3,987)
Proceeds from employee stock plans			5,460	8,691
Net cash provided by financing activities			4,115	109,107
Effect of exchange rate changes on cash and cash equivalents			(499)	69
Net (decrease) increase in cash and cash equivalents			(7,210)	56,834
Cash and cash equivalents, beginning of period			46,795	18,335	18,335
Cash and cash equivalents, end of period	$ 39,585	$ 75,169	39,585	75,169	$ 46,795
Supplemental disclosure of cash flow information
Cash paid during the period for interest			4,460	97
Cash paid during the period for income taxes, net of refunds			714	452
Common stock issued in connection with acquisition of business			$ 18,433	$ 0

Nature of Business

Nature of Business	9 Months Ended
	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Business	Nature of Business Limelight Networks, Inc., is an industry-leader in content delivery services and AppOps, our coordinated complete solution to deliver instant, secure website applications at the edge that provides powerful tools and a client-first approach to optimize and deliver digital experiences at the edge. We are a trusted partner to the world’s biggest brands and serve their global customers with experiences such as livestream sporting events, global movie launches, video games, or file downloads for new phone apps. We offer one of the largest, best-optimized private networks coupled with a global team of industry experts to provide edge services that are fast, secure, and reliable. We were incorporated in Delaware in 2003, and have operated in the Phoenix metropolitan area since 2001 and elsewhere throughout the United States since 2003. We began international operations in 2004.

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Basis of Presentation The accompanying unaudited interim consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities Exchange Commission (SEC). They do not include all of the information and footnotes required by U.S. generally accepted accounting principles (U.S. GAAP) for complete financial statements. Such interim financial information is unaudited but reflects all adjustments that are, in the opinion of management, necessary for the fair presentation of the interim periods presented and of a normal recurring nature. This quarterly report on Form 10-Q should be read in conjunction with our audited financial statements and footnotes included in our annual report on Form 10-K for the fiscal year ended December 31, 2020. All information is presented in thousands, except per share amounts and where specifically noted. The consolidated financial statements include accounts of Limelight and our wholly owned subsidiaries. All significant intercompany balances and transactions have been eliminated. In addition, certain other reclassifications have been made to prior year amounts to conform to the current year presentation. Use of Estimates The preparation of the consolidated financial statements and related disclosures in conformity with U.S. GAAP requires management to make judgments, assumptions, and estimates that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results and outcomes may differ from those estimates. The results of operations presented in this quarterly report on Form 10-Q are not necessarily indicative of the results that may be expected for the year ending December 31, 2021, or for any future periods. Recent Accounting Standards Adopted Accounting Standards In December 2019, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2019-12 to simplifying the accounting for income taxes. ASU 2019-12 is intended to simplify various aspects related to accounting for income taxes, eliminates certain exceptions to the general principles in the Accounting Standards Codification (ASC) Topic 740 related to intra-period tax allocation, simplifies when companies recognize deferred taxes in an interim period, and clarifies certain aspects of the current guidance to promote consistent application. We adopted this guidance effective January 1, 2021. The adoption of this guidance did not have a material impact on our consolidated financial statements and related disclosures. In August 2020, the FASB issued ASU 2020-06, which simplifies the accounting for convertible instruments. ASU 2020-06 eliminates certain models that require separate accounting for embedded conversion features, in certain cases. Additionally, among other changes, the guidance eliminates certain of the conditions for equity classification for contracts in an entity’s own equity. ASU 2020-06 also requires entities to use the if-converted method for all convertible instruments in the diluted earnings per share calculation and include the effect of share settlement for instruments that may be settled in cash or shares, except for certain liability-classified share-based payment awards. We early adopted this guidance on January 1, 2021, on a modified retrospective basis. As a result of the adoption of ASU 2020-06, our total remaining interest expense over the contractual terms of our convertible debt will be approximately $20,823 less than under the previous accounting standards. The adoption resulted in a $21,733 decrease in additional paid in capital from the derecognition of the bifurcated equity component, $20,255 increase in debt from the derecognition of the discount associated with the bifurcated equity component and $1,677 decrease to the opening balance of accumulated deficit, representing the cumulative interest expense recognized related to the amortization of the bifurcated conversion option. We wrote-off the related deferred tax liabilities with a corresponding adjustment to the valuation allowance, resulting in no net tax impact to the cumulative adjustment to retained earnings. Recently Issued Accounting Standards In October 2021, the FASB issued ASU 2021-08, which provides amendments to improve, simplify, and provide consistency for recognition and measurement of acquired contract assets and contract liabilities from revenue contracts in a business combination. The amendments require that an acquirer recognize and measure such contract assets and contract liabilities under Topic 606, Revenue from Contracts with Customers, as if it had originated the contracts. The amendments also allow for election of certain practical expedients, which are applied on an acquisition-by-acquisition basis. The new accounting amendments are effective for us beginning in fiscal 2023 with prospective application. Early adoption is permitted, including in any interim period, and if elected, the amendments are applied retrospectively for any acquisitions that occurred in the fiscal year of interim adoption. We expect to early adopt this ASU and are evaluating the impacts of the amendments on our condensed consolidated financial statements. Significant Accounting Policies There have been no changes in the significant accounting policies from those that were disclosed in our Annual Report, except for restructuring charge, convertible senior notes, business combinations, finite intangible assets and share-based compensation as described below: Restructuring Charges We account for restructuring costs under ASC 420, Exit or Disposal Obligations. Restructuring costs are recognized when the liability is incurred. A restructuring liability related to employee terminations is recorded when a one-time benefit arrangement is communicated to an employee who is involuntarily terminated as part of a reorganization and the amount of the termination benefit is known, provided that the employee is not required to render future services in order to receive the termination benefit. If fixed assets, or other assets are to be disposed of as a result of our restructuring efforts, the assets are written off when we commit to dispose of them, and they are no longer in use. If applicable, depreciation is accelerated on fixed assets for the period of time the asset continues to be used until the asset ceases to be used. Other restructuring costs are generally recorded as the cost is incurred or the service is provided. Convertible Senior Notes In July 2020, we issued $125,000 aggregate principal amount of 3.50% convertible senior notes. Effective January 1, 2021, we early adopted ASU 2020-06. The conversion option that was previously accounted for under the cash conversion model or beneficial conversion feature model was recombined into a single instrument that is classified as a liability for convertible debt or equity for equity-classified preferred stock. Business Combinations In accounting for acquisitions through which a set of assets and activities are transferred to us, we perform an initial test to determine whether substantially all of the fair value of the gross assets transferred are concentrated in a single identifiable asset or a group of similar identifiable assets, such that the acquisition would not represent a business. If the initial test does not result in substantially all of the fair value concentrated in a single or group of similar assets, we then perform a second test to evaluate whether the assets and activities transferred include inputs and substantive processes that, together, significantly contribute to the ability to create outputs, which would constitute a business. If the result of the second test indicates that the acquired assets and activities constitute a business, we account for the transaction as a business combination. For our business combinations, we allocate the purchase consideration of the acquisition, which includes the estimated acquisition date fair value of contingent consideration (if applicable), to the tangible assets, liabilities and identifiable intangible assets acquired based on each of the estimated fair values at the acquisition date. The excess of the purchase consideration over the fair values is recorded as goodwill. Determining the fair value of such items requires judgment, including estimating future cash flows or the cost to recreate an acquired asset. Acquisition-related expenses are expensed as incurred, except for those costs incurred to issue debt or equity securities (if applicable), and are included in general and administrative expense in our consolidated statements of operations. During and up to the one-year period beginning with the acquisition date, we may record certain purchase accounting adjustments related to the fair value of assets acquired and liabilities assumed against goodwill. After the final determination of the fair value of assets acquired or liabilities assumed, any subsequent adjustments are recorded to our consolidated statements of operations. The fair value of contingent consideration liabilities assumed from an acquisition are remeasured each reporting period after the acquisition date and the changes in the estimated fair value, if any, are recorded within operating expenses in our consolidated statement of operations for such period. In accounting for income taxes in a business combination, changes in the deferred tax asset valuations allowance and income tax uncertainties after the acquisition date will be recognized through income tax expense in our consolidated statement of operations each reporting period. The results of operations of the acquired business are included in our consolidated statement of operations since the date of acquisition. Finite Intangible Assets Finite-lived intangible assets are amortized over the following estimated useful lives: Trade name 3.0 years Customer relationships 5.0 years Technology 7.0 years Our finite-lived intangible assets are primarily amortized on a straight-line basis. We annually evaluate the estimated remaining useful lives of our intangible assets to determine whether events or changes in circumstances warrant a revision to the remaining period of amortization. Long-lived and finite-lived intangible assets are reviewed for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be fully recoverable. An impairment loss is recognized if the sum of the expected long-term undiscounted cash flows the asset is expected to generate is less than its carrying amount. Any write-downs are treated as permanent reductions in the carrying amount of the respective asset. Our analysis did not indicate impairment during any of the periods presented. Share-Based Compensation We account for our share-based compensation awards using the fair-value method. The grant date fair value was determined using the Black-Scholes-Merton pricing model. The Black-Scholes-Merton valuation calculation requires us to make key assumptions such as future stock price volatility, expected terms, risk-free rates, and dividend yield. Our expected volatility is derived from our volatility rate as a publicly traded company. The expected term is based on our historical experience. The risk-free interest factor is based on the United States Treasury yield curve in effect at the time of the grant for zero coupon United States Treasury notes with maturities of approximately equal to each grant’s expected term. We have never paid cash dividends and do not currently intend to pay cash dividends, and therefore, we have assumed a 0% dividend yield. We apply the straight-line attribution method to recognize compensation costs associated with awards that are not subject to graded vesting. For awards subject to graded vesting, we recognize expense separately for each vesting tranche. We regularly estimate when and if performance-based award will be earned and record expense over the estimated service period only for awards considered probable of being earned. Any previously recognized expense is reversed in the period in which an award is determined to no longer be probable of being earned. Revenue Recognition Revenues are recognized when control of the promised goods or services is transferred to our clients, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. For contracts that contain minimum commitments over the contractual term, we estimate an amount of variable consideration by using the expected value method. We include estimates of variable consideration in revenue only when we have a high degree of confidence that revenue will not be reversed in a subsequent reporting period. We believe that the expected value method is the most appropriate estimate of the amount of variable consideration. These clients have entered into contracts with contract terms generally from one to four years. As of September 30, 2021, we have approximately $4,051 of remaining unsatisfied performance obligations. We recognized revenue of approximately $2,418 and $1,911, respectively, during the three months ended September 30, 2021 and 2020, related to these types of contracts with our clients. During the nine months ended September 30, 2021 and 2020, we recognized approximately $6,774 and $6,008, respectively. We expect to recognize approximately 47% of the remaining unsatisfied performance obligations in 2021, approximately 51% in 2022, and approximately 2% in 2023.

Business Acquisition

Business Acquisition	9 Months Ended
	Sep. 30, 2021
Business Combination and Asset Acquisition [Abstract]
Business Acquisition	Business Acquisition In September 2021, we closed the acquisition of 100% of the equity interests of Moov, a California corporation doing business as Layer0, a sub-scale SaaS based application acceleration and developer support platform, for total purchase consideration of $52,487. The total purchase consideration included $34,054 in cash, and 6,878 shares of our common stock valued at $18,433 at the acquisition date. In connection with this transaction, a shareholder of Moov entered into an employment agreement with us. As part of the employment agreement, the employee will receive contingent consideration of approximately $4,300 to be paid out ratably over a three year period on each anniversary of the acquisition closing date if the employee remains employed by us. As the employee is required to render services to us following the acquisition, this contingent consideration is not included in the purchase consideration. The acquisition was accounted for under the acquisition method of accounting and the operating results of Moov have been included in our consolidated financial statements as of the closing date of the acquisition. Under the acquisition method of accounting, the aggregate amount of consideration paid by us was allocated to Moov net tangible assets and intangible assets based on their estimated fair values as of the acquisition closing date. The excess of the purchase price over the value of the net tangible assets and intangible assets was recorded to goodwill. The factors contributing to the recognition of goodwill were based upon our conclusion that there are strategic and synergistic benefits that are expected to be realized from the acquisition. Goodwill, which is non-deductible for tax purposes, represents the excess of the purchase price over the fair value of the net tangible and intangible assets acquired and is primarily attributable to the technology, customer relationships and trade name of the acquired business and expected synergies at the time of the acquisition. We retained an independent third-party valuation firm to assist management in our valuation of the acquired assets and liabilities. The following table presents the allocation of the purchase price for Moov: Consideration: Cash $ 34,054 Common stock 18,433 Total consideration $ 52,487 The fair value of our common stock consideration of 6,878 shares, is based on the closing price of our common stock of $2.68 per share on the acquisition closing date. The following table summarizes the allocation of the purchase consideration to the acquisition date fair value of the assets, including intangible assets, liabilities assumed and related goodwill acquired: Cash $ 3,130 Accounts receivable 2,515 Prepaid expenses and other current assets 273 Goodwill 27,479 Intangible assets Trade name 91 Customer relationships 7,090 Technology 16,820 Total assets acquired 57,398 Accounts payable and accrued liabilities 2,432 Deferred revenue 2,479 Total liabilities 4,911 Total purchase consideration $ 52,487 Certain amounts noted above are preliminary and subject to change during the respective measurement period (up to one year from the acquisition date) as we obtain additional information for the preliminary fair value estimates of the assets acquired and liabilities assumed. The primary preliminary estimates that are not yet finalized relate to certain assets and liabilities assumed, identifiable intangible assets, income and non-income based taxes and residual goodwill. The fair value of the acquired intangible assets were determined as follows, trade name - income approach using the relief from royalty methodology, customer relationships - utilizing the cost approach methodology, and technology - excess earnings methodology under the income approach. The weighted-average amortization period of the acquired intangible assets was 6.4 years at acquisition. During the three and nine months ended September 30, 2021, Moov represented $817 of our total revenue and $450 of our consolidated net loss. For the period January 1, 2021 to the acquisition closing date, Moov's unaudited revenue was approximately $8,969, and their net loss was approximately $628. For the year ended December 31, 2020, Moov's unaudited revenue was approximately $13,400, and their net loss was approximately $600. Transaction costs incurred by us in connection with the Moov acquisition were $1,263 and $1,441 for the three and nine months ended September 30, 2021, respectively, and were recorded within general and administrative expenses in our consolidated statements of operations.

Investments in Marketable Secur

Investments in Marketable Securities	9 Months Ended
	Sep. 30, 2021
Investments, Debt and Equity Securities [Abstract]
Investments in Marketable Securities	Investments in Marketable Securities The following is a summary of marketable securities (designated as available-for-sale) at September 30, 2021: Amortized Gross Gross Estimated Certificate of deposit $ 1,915 $ — $ — $ 1,915 Corporate notes and bonds 14,780 7 16 14,771 Municipal securities 19,562 — 7 19,555 Total marketable securities $ 36,257 $ 7 $ 23 $ 36,241 The amortized cost and estimated fair value of marketable securities at September 30, 2021, by maturity are shown below: Amortized Gross Gross Estimated Available-for-sale securities: Due in one year or less $ 36,217 $ 7 $ 23 $ 36,201 Due after one year and through five years 40 — — 40 Total marketable securities $ 36,257 $ 7 $ 23 $ 36,241 The following is a summary of marketable securities (designated as available-for-sale) at December 31, 2020: Amortized Gross Gross Estimated Certificate of deposit $ 551 $ — $ — $ 551 Corporate notes and bonds 45,426 — 41 45,385 Municipal securities 31,039 1 8 31,032 Total marketable securities $ 77,016 $ 1 $ 49 $ 76,968 The amortized cost and estimated fair value of marketable securities at December 31, 2020, by maturity are shown below: Amortized Gross Gross Estimated Available-for-sale securities: Due in one year or less $ 76,976 $ 1 $ 49 $ 76,928 Due after one year and through five years 40 — — 40 Total marketable securities $ 77,016 $ 1 $ 49 $ 76,968

Accounts Receivable, net

Accounts Receivable, net	9 Months Ended
	Sep. 30, 2021
Receivables [Abstract]
Accounts Receivable, net	Accounts Receivable, net Accounts receivable, net include: September 30, December 31, 2021 2020 Accounts receivable $ 48,007 $ 32,857 Less: credit allowance (150) (170) Less: allowance for doubtful accounts (1,678) (1,012) Total accounts receivable, net $ 46,179 $ 31,675 The following is a roll-forward of the allowances for doubtful accounts related to trade accounts receivable for the nine months ended September 30, 2021 and the twelve months ended December 31, 2020: Nine Months Ended Twelve Months Ended September 30, 2021 December 31, 2020 Beginning of period $ 1,012 $ 973 Provision for credit losses 1,047 801 Write-offs (381) (762) End of period $ 1,678 $ 1,012

Prepaid Expenses and Other Curr

Prepaid Expenses and Other Current Assets	9 Months Ended
	Sep. 30, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid Expenses and Other Current Assets	Prepaid Expenses and Other Current Assets Prepaid expenses and other current assets include: September 30, December 31, 2021 2020 Prepaid bandwidth and backbone 1,530 3,519 VAT receivable 4,454 4,392 Prepaid expenses and insurance 3,011 2,906 Vendor deposits and other 4,401 4,771 Total prepaid expenses and other current assets $ 13,396 $ 15,588

Property and Equipment, net

Property and Equipment, net	9 Months Ended
	Sep. 30, 2021
Property, Plant and Equipment [Abstract]
Property and Equipment, net	Property and Equipment, net Property and equipment, net include: September 30, December 31, 2021 2020 Network equipment $ 125,665 $ 136,788 Computer equipment and software 7,014 7,358 Furniture and fixtures 1,412 1,703 Leasehold improvements 7,158 7,470 Other equipment 18 21 Total property and equipment 141,267 153,340 Less: accumulated depreciation (104,875) (106,922) Total property and equipment, net $ 36,392 $ 46,418 Cost of revenue depreciation expense related to property and equipment was approximately $5,685 and $5,602, respectively, for the three months ended September 30, 2021 and 2020, respectively. For the nine months ended September 30, 2021 and 2020, respectively, cost of revenue depreciation expense related to property and equipment was approximately $17,293 and $16,112, respectively. Operating expense depreciation and amortization expense related to property and equipment was approximately $409 and $384, respectively, for the three months ended September 30, 2021 and 2020, respectively. For the nine months ended September 30, 2021 and 2020, respectively, operating expense depreciation expense related to property and equipment was approximately $1,497 and $1,049, respectively.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	9 Months Ended
	Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets We have recorded goodwill as a result of past and current business acquisitions. We review goodwill for impairment annually or whenever events or changes in circumstances indicate that the carrying amount may exceed their fair value. We concluded that we have one reporting unit and assigned the entire balance of goodwill to this reporting unit as of September 30, 2021. The changes in the carrying amount of goodwill for the nine months ended September 30, 2021, were as follows: Balance, December 31, 2020 $ 77,753 Foreign currency translation adjustment (332) Balance, March 31, 2021 $ 77,421 Foreign currency translation adjustment 221 Balance, June 30, 2021 $ 77,642 Acquisition of business 27,479 Foreign currency translation adjustment 100 Balance, September 30, 2021 $ 105,221 Intangible assets consist of the following as of September 30, 2021: Gross Accumulated Net Trade name $ 91 $ (3) $ 88 Customer relationships 7,090 (118) 6,972 Technology 16,820 (200) 16,620 Total other intangible assets $ 24,001 $ (321) $ 23,680 Aggregate expense related to amortization of other intangible assets for the three and nine months ended September 30, 2021,was approximately $321. There were no impairment charges incurred in the periods presented. As of September 30, 2021, the weighted-average remaining useful lives of our acquired intangible assets were 3.0 years for trade name, 5.0 years for customer relationships, and 7.0 years for technology, and 6.4 years in total, for all acquired intangible assets. As of September 30, 2021, future amortization expense related to our other intangible assets is expected to be recognized as follows: Remainder of 2021 $ 963 2022 3,851 2023 3,851 2024 3,841 2025 3,821 Thereafter 7,353 Total $ 23,680

Other Current Liabilities

Other Current Liabilities	9 Months Ended
	Sep. 30, 2021
Other Liabilities Disclosure [Abstract]
Other Current Liabilities	Other Current Liabilities Other current liabilities include: September 30, December 31, 2021 2020 Accrued compensation and benefits $ 6,789 $ 5,964 Accrued cost of revenue 2,649 5,036 Accrued interest payable 729 1,894 Restructuring charges 712 — Accrued legal fees 1,133 61 Other accrued expenses 5,938 4,605 Total other current liabilities $ 17,950 $ 17,560

Debt

Debt	9 Months Ended
	Sep. 30, 2021
Debt Disclosure [Abstract]
Debt	Debt Convertible Senior Notes - Due 2025 On July 27, 2020, we issued $125,000 aggregate principal amount of 3.50% Convertible Senior Notes due 2025 (the Notes), including the initial purchasers’ exercise in full of their option to purchase an additional $15,000 principal amount of the Notes, in a private placement to qualified institutional buyers in an offering exempt from registration under the Securities Act of 1933, as amended. The net proceeds from the issuance of the Notes was $120,741 after deducting transaction costs. The Notes are governed by an indenture (the Indenture) between us, as the issuer, and U.S. Bank, National Association, as trustee. The Notes are senior, unsecured obligations of ours and will be equal in right of payment with our senior, unsecured indebtedness; senior in right of payment to our indebtedness that is expressly subordinated to the notes; effectively subordinated to our senior, secured indebtedness, including future borrowings, if any, under our $20,000 credit facility with Silicon Valley Bank (SVB), to the extent of the value of the collateral securing that indebtedness; and structurally subordinated to all indebtedness and other liabilities, including trade payables, and (to the extent we are not a holder thereof) preferred equity, if any, of our subsidiaries. The Indenture includes customary covenants and sets forth certain events of default after which the Notes may be declared immediately due and payable and sets forth certain types of bankruptcy or insolvency events of default involving us after which the Notes become automatically due and payable. The Notes mature on August 1, 2025, unless earlier converted, redeemed or repurchased in accordance with their term prior to the maturity date. Interest is payable semiannually in arrears on February 1 and August 1 of each year, beginning on February 1, 2021. The holders of the Notes may convert all or any portion of their Notes at their option only in the following circumstances: (1) during any calendar quarter commencing after the calendar quarter ending on December 31, 2020 (and only during such calendar quarter), if the last reported sale price per share of our common stock exceeds 130% of the conversion price of $8.53 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 ten consecutive trading day period (such ten consecutive trading day period, the measurement period) in which the trading price per $1 principal amount of 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 our common stock on such trading day and the conversion rate on such trading day; (3) upon the occurrence of certain corporate events or distributions of our common stock; (4) if we call such Notes for redemption; and (5) at any time from, and including, May 1, 2025, until the close of business on the second scheduled trading day immediately before the maturity date. On or after May 1, 2025, until the close of business on the second scheduled trading day immediately preceding the maturity date, holders may convert all or any portion of their Notes, in minimum principal amount denominations of $1 or any integral multiple of $1 in excess thereof, at the option of the holder regardless of the foregoing circumstances. Upon conversion, we may satisfy our conversion obligation by paying or delivering, as applicable, cash, shares of common stock or a combination of cash and shares of common stock, at our election, in the manner and subject to the terms and conditions provided in the Indenture. The Notes have an initial conversion rate of 117.2367 shares of our common stock per $1 principal amount of Notes, which is equal to an initial conversion price of approximately $8.53 per share of our common stock. The initial conversion price of the Notes represents a premium of approximately 27.5% over the last reported sale price of our common stock on The Nasdaq Global Select Market of $6.69 per share on July 22, 2020. The conversion rate is subject to adjustment under certain circumstances in accordance with the terms of the Indenture. In addition, following certain corporate events that occur prior to the maturity date or if we deliver a notice of redemption, we will increase the conversion rate in certain circumstances for a holder who elects to convert its Notes in connection with such a corporate event or convert its Notes called (or deemed called) for redemption in connection with such notice of redemption, provided that the conversion rate will not exceed 149.4768 share of our common stock per $1 principal amount of Notes, subject to adjustment. We may not redeem the Notes prior to August 4, 2023. We may redeem for cash all, or any portion in an authorized denomination, of the Notes, at our option, on or after August 4, 2023, and on or prior to the 41st scheduled trading day immediately preceding the maturity date, if the last reported sale price of our common stock has been at least 130% of the conversion price then in effect for at least 20 trading days, whether or not consecutive, including the trading day immediately preceding the date on which we provide notice of redemption, during any 30 consecutive trading day period ending on, and including, the trading day preceding the date on which we provide notice of redemption at a redemption price equal to 100% of the principal amount of the Notes to be redeemed, plus any accrued and unpaid interest to, but excluding, the redemption date. No sinking fund is provided for the Notes, which means that we are not required to redeem or retire the Notes periodically. If we undergo a fundamental change (as defined in the Indenture), holders may require us to repurchase for cash all or any portion of their Notes at a fundamental change repurchase price equal to 100% of the principal amount of the Notes to be repurchased, plus accrued and unpaid interest to, but excluding, the fundamental change repurchase date. As of September 30, 2021, the conditions allowing holders of the Notes to convert had not been met and therefore the Notes are not yet convertible. The Notes are classified as long-term debt on our condensed consolidated balance sheet as of September 30, 2021, and the liability component of the notes are classified as long-term debt on our condensed consolidated balance sheet as of December 31, 2020. At the time of issuance in July 2020, we separately accounted for the liability and equity components of the Notes. We determined the initial carrying amount of the $102,500 liability component before consideration of debt discount and transaction fees by calculating the present value of the cash flows using an effective interest rate of 8.6%. The interest rate was determined based on non-convertible debt offerings of similar sizes and terms by companies with similar credit ratings (Level 2 inputs). The carrying amount of the equity component, representing the conversion option, was $22,500 and was calculated by deducting the initial carrying value of the liability component from the principal amount of the Notes as a whole. This difference represents a debt discount that is amortized to interest expense over the 5-year contractual term of the Notes using the effective interest rate method. The equity component is not remeasured as long as it continues to meet the conditions for equity classification. On January 1, 2021, we early adopted ASU 2020-06 on a modified retrospective basis. As a result of the adoption of ASU 2020-06, our total remaining interest expense over the contractual terms of our convertible debt will be approximately $20,823 less than under the previous accounting standards. The adoption resulted in a $21,733 decrease in additional paid in capital from the derecognition of the bifurcated equity component, $20,255 increase in debt from the derecognition of the discount associated with the bifurcated equity component and $1,677 decrease to the opening balance of accumulated deficit, representing the cumulative interest expense recognized related to the amortization of the bifurcated conversion option. We initially allocated transaction costs related to the issuance of the Notes to the liability and equity components using the same proportions as the initial carrying value of the Notes. Transaction costs initially attributable to the liability component were $3,400 and are being amortized to interest expense using the effective interest method over the term of the Notes. Transaction costs attributable to the equity component were $859. Following the adoption of ASU 2020-06, the transaction costs attributable to the original equity component are now being amortized to interest expense over the remaining term of the Notes. The net carrying amount of the liability and equity components of the Notes was as follows: September 30, December 31, 2021 2020 Liability component: Principal $ 125,000 $ 125,000 Debt discount (equity component) — (20,823) Unamortized transaction costs (3,424) (3,232) Net carrying amount $ 121,576 $ 100,945 Equity component, net of transaction costs $ — $ 21,733 Interest expense recognized related to the Notes was as follows: Three Months Ended Nine Months Ended September 30, 2021 September 30, 2020 September 30, 2021 September 30, 2020 Contractual interest expense $ 1,094 $ 791 $ 3,259 $ 791 Amortization of debt discount — 753 — 753 Amortization of transaction costs 204 115 604 115 Total $ 1,298 $ 1,659 $ 3,863 $ 1,659 As of September 30, 2021, and December 31, 2020, the estimated fair value of the Notes was $111,238 and $114,233, respectively. We estimated the fair value based on the quoted market prices in an inactive market on the last trading day of the reporting period, which are considered Level 2 inputs. Capped Call Transactions In connection with the offering of the Notes, we entered into privately negotiated capped call transactions with certain counterparties (collectively, the Capped Calls). The Capped Calls have an initial strike price of approximately $8.53 per share, subject to certain adjustments, which corresponds to the initial conversion price of the Notes. The Capped Calls have an initial cap price of $13.38 per share, subject to certain adjustments. The Capped Calls are generally intended to reduce or offset the potential economic dilution of approximately 14.7 million shares to our common stock upon any conversion of the Notes with such reduction or offset, as the case may be, subject to a cap based on the cap price. As the Capped Calls are considered indexed to our own stock and are equity classified, they are recorded in stockholders’ equity and are not accounted for as derivatives. The cost of $16,400 incurred in connection with the Capped Calls was recorded as a reduction to additional paid-in capital. Line of Credit In November 2015 we entered into the original Loan and Security Agreement (the Credit Agreement) with SVB. Since the inception, there have been seven amendments, with the most recent amendment being in December 2020. The maximum principal commitment amount remains at $20,000. Our borrowing capacity is the lesser of the commitment amount or 80% of eligible accounts receivable. All outstanding borrowings owed under the Credit Agreement become due and payable no later than the final maturity date of November 2, 2022. As long as our Adjusted Quick Ratio remains above 1.5 to 1, we no longer are required to submit quarterly borrowing base reports. As of September 30, 2021, and December 31, 2020, we had no outstanding borrowings, and we had availability under the Credit Agreement of $20,000 and $20,000, respectively. As of September 30, 2021, borrowings under the Credit Agreement bear interest at the current prime rate minus 0.25%. In the event of default, obligations shall bear interest at a rate per annum that is 3% above the then applicable rate. Amendment fees and other commitment fees are included in interest expense. During the three months ended September 30, 2021 and 2020, there was no interest expense, and fees expense and amortization was $10 and $15, respectively. For the nine months ended September 30, 2021 and 2020, there was no interest expense, and fees expense and amortization was $36 and $97, respectively. Any borrowings are secured by essentially all of our domestic personal property, with a negative pledge on intellectual property. SVB’s security interest in our foreign subsidiaries is limited to 65% of the voting stock of each such foreign subsidiary.

Restructuring Charge

Restructuring Charge	9 Months Ended
	Sep. 30, 2021
Restructuring and Related Activities [Abstract]
Restructuring Charge	Restructuring Charge During the first quarter of 2021, management committed to restructure certain parts of the company to focus on improved growth and profitability. As a result, certain headcount reductions were implemented, and we incurred certain charges related to severance, share-based compensation, and professional fees. During the three months ended June 30, 2021, we incurred $2,155 of costs related to this restructuring plan. During the three months ended September 30, 2021, we recognized a cost recovery of $112, as actual expenses incurred were less than previously estimated. We do not expect any additional restructure charges related to this action plan. During the third quarter of 2021, management committed to restructure certain parts of the company to align our workforce and facility requirements with our continued investment in the business as we focus on cost efficiencies, improved growth and profitability. As a result, certain facilities, right of use assets, outside service contracts and professional fees were incurred. During the three months ended September 30, 2021, we incurred $1,882 of costs related to this restructuring plan. We expect approximately $1,000 of additional costs related primarily to consulting fees to restructure our datacenter architecture over the next 12 months. The following table summarizes the activity of our restructuring accrual (recorded in other current liabilities on our condensed consolidated balance sheet) during the three and nine months ended September 30, 2021 (in thousands): Employee Severance and Related Benefits Share-Based Compensation Facilities Related Charges Professional Fees and Other Total Balance as of January 1, 2021 $ — $ — $ — $ — $ — Costs incurred (recorded in restructuring charge) 3,513 1,354 — 2,006 6,873 Cash disbursements (1,143) — — (237) (1,380) Non-cash charges — (1,354) — — (1,354) Balance as of March 31, 2021 $ 2,370 $ — $ — $ 1,769 $ 4,139 Costs incurred (recorded in restructuring charge) (247) 917 1,485 2,155 Cash disbursements (1,203) — (2,902) (4,105) Non-cash charges — (917) — — (917) Balance as of June 30, 2021 $ 920 $ — $ — $ 352 $ 1,272 Costs incurred (recorded in restructuring charge) (1) (236) 1,882 125 1,770 Cash disbursements (357) — (465) (822) Non-cash charges (9) 383 (1,882) — (1,508) Balance as of September 30, 2021 $ 553 $ 147 $ — $ 12 $ 712

Contingencies

Contingencies	9 Months Ended
	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Contingencies	Contingencies Legal Matters We are subject to various legal proceedings and claims, either asserted or unasserted, arising in the ordinary course of business. While the outcome of these claims cannot be predicted with certainty, management does not believe the outcome of any of these matters will have a material adverse effect on our business, financial position, results of operations, or cash flows and accordingly, no material legal contingencies were accrued as of September 30, 2021, and December 31, 2020. Litigation relating to the content delivery services industry is not uncommon, and we are, and from time to time have been, subject to such litigation. No assurances can be given with respect to the extent or outcome of any such litigation in the future. Taxes We are subject to indirect taxation in various states and foreign jurisdictions. Laws and regulations that apply to communications and commerce conducted over the Internet are becoming more prevalent, both in the United States and internationally, and may impose additional burdens on us conducting business online or providing Internet-related services. Increased regulation could negatively affect our business directly, as well as the businesses of our clients, which could reduce their demand for our services. For example, tax authorities in various states and abroad may impose taxes on the Internet-related revenue we generate based on regulations currently being applied to similar but not directly comparable industries. There are many transactions and calculations where the ultimate tax determination is uncertain. In addition, domestic and international taxation laws are subject to change. In the future, we may come under audit, which could result in changes to our tax estimates. We believe we maintain adequate tax reserves, that are not material in amount, to offset potential liabilities that may arise upon audit. Although we believe our tax estimates and associated reserves are reasonable, the final determination of tax audits and any related litigation could be materially different than the amounts established for tax contingencies. To the extent these estimates ultimately prove to be inaccurate, the associated reserves would be adjusted, resulting in the recording of a benefit or expense in the period in which a change in estimate or a final determination is made.

Net Loss per Share

Net Loss per Share	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Net Loss per Share	Net Loss per Share We calculate basic and diluted loss per weighted average share. We use the weighted-average number of shares of common stock outstanding during the period for the computation of basic loss per share. Diluted loss per share include the dilutive effect of all potentially dilutive common stock, including awards granted under our equity incentive compensation plans in the weighted-average number of shares of common stock outstanding. The following table sets forth the components used in the computation of basic and diluted net loss per share for the periods indicated (in thousands, except per share data): Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Net loss $ (10,105) $ (3,985) $ (49,332) $ (10,968) Basic weighted average outstanding shares of common stock 126,791 122,363 125,710 120,519 Basic weighted average outstanding shares of common stock 126,791 122,363 125,710 120,519 Dilutive effect of stock options, restricted stock units, and other equity incentive plans — — — — Diluted weighted average outstanding shares of common stock 126,791 122,363 125,710 120,519 Basic net loss per share $ (0.08) $ (0.03) $ (0.39) $ (0.09) Diluted net loss per share: $ (0.08) $ (0.03) $ (0.39) $ (0.09) For the three and nine months ended September 30, 2021 and 2020, respectively, the following potentially dilutive common stock, including awards granted under our equity incentive compensation plans were excluded from the computation of diluted net loss per share because including them would have been anti-dilutive. Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Employee stock purchase plan 314 187 314 187 Stock options and warrants 1,243 6,676 2,574 6,401 Restricted stock units 11,521 1,894 11,979 1,984 Convertible senior notes 14,654 14,654 14,654 14,654 27,732 23,411 29,521 23,226

Stockholders' Equity

Stockholders' Equity	9 Months Ended
	Sep. 30, 2021
Equity [Abstract]
Stockholders' Equity	Stockholders’ Equity Common Stock On March 14, 2017, our board of directors authorized a $25,000 share repurchase program. Any shares repurchased under this program will be canceled and returned to authorized but unissued status. During the nine months ended September 30, 2021 and 2020, we did not repurchase any shares under the repurchase program. As of September 30, 2021, there remained $21,200 under this share repurchase program. Amended and Restated Equity Incentive Plan We established the 2007 Equity Incentive Plan, or the 2007 Plan, which allows for the grant of equity, including stock options and restricted stock unit awards. In June 2016, our stockholders approved the Amended and Restated 2007 Equity Incentive Plan, or the Restated 2007 Plan, which amended and restated the 2007 Plan. Approval of the Restated 2007 Plan replaced the terms and conditions of the 2007 Plan with the terms and conditions of the Restated 2007 Plan and extended the term of the plan to April 2026. There was no increase in the aggregate amount of shares available for issuance. The total number of shares authorized for issuance under the Restated 2007 Plan as of September 30, 2021 was approximately 12,912. Employee Stock Purchase Plan In June 2013, our stockholders approved our 2013 Employee Stock Purchase Plan (ESPP), authorizing the issuance of 4,000 shares. In May 2019, our stockholders approved the adoption of Amendment 1 to the ESPP. Amendment 1 increased the number of shares authorized to 9,000 shares (an increase of 5,000 shares) and amended the maximum number of shares of common stock that an eligible employee may be permitted to purchase during each offering period to be 5 shares. The ESPP allows participants to purchase our common stock at a 15% discount of the lower of the beginning or end of the offering period using the closing price on that day. During the three months ended September 30, 2021, we did not issue any shares under the ESPP. During the nine months ended September 30, 2021, we issued 355 shares under the ESPP. Total cash proceeds from the purchase of shares under the ESPP was approximately $913. As of September 30, 2021, shares reserved for issuance to employees under this plan totaled 3,330, and we held employee contributions of $631 (included in other current liabilities) for future purchases under the ESPP. Preferred Stock Our board of directors has authorized the issuance of up to 7,500 shares of preferred stock at September 30, 2021. The preferred stock may be issued in one or more series pursuant to a resolution or resolutions providing for such issuance duly adopted by the board of directors. As of September 30, 2021, the board of directors had not adopted any resolutions for the issuance of preferred stock.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	9 Months Ended
	Sep. 30, 2021
Equity [Abstract]
Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss Changes in the components of accumulated other comprehensive loss, net of tax, for the nine months ended September 30, 2021, was as follows: Foreign Available for Currency Sale Securities Total Balance, December 31, 2020 $ (7,460) $ (51) $ (7,511) Other comprehensive loss before reclassifications (1,012) 32 (980) Amounts reclassified from accumulated other comprehensive — — — Net current period other comprehensive loss (1,012) 32 (980) Balance, September 30, 2021 $ (8,472) $ (19) $ (8,491)

Share-Based Compensation

Share-Based Compensation	9 Months Ended
	Sep. 30, 2021
Share-based Payment Arrangement [Abstract]
Share-Based Compensation	Share-Based Compensation The following table summarizes the components of share-based compensation expense included in our consolidated statements of operations: Three Months Ended Nine Months Ended 2021 2020 2021 2020 Share-based compensation expense by type: Stock options and warrants $ 144 $ 1,024 $ 7,395 $ 3,143 Restricted stock units 3,300 713 8,579 8,413 ESPP 213 186 503 682 Total share-based compensation expense $ 3,657 $ 1,923 $ 16,477 $ 12,238 Share-based compensation expense: Cost of services $ 438 $ 130 $ 1,142 $ 1,685 General and administrative expense 2,301 1,272 10,203 5,770 Sales and marketing expense 640 206 1,598 2,756 Research and development expense 662 315 1,647 2,027 Restructuring charge (384) — 1,887 — Total share-based compensation expense $ 3,657 $ 1,923 $ 16,477 $ 12,238 Unrecognized share-based compensation expense totaled approximately $42,652 at September 30, 2021, of which $5,692 related to stock options and $36,960 related to restricted stock units. Unrecognized share-based compensation includes both time-based and performance-based equity to be issued as part of our recent business acquisition. We currently expect to recognize share-based compensation expense of $5,458 during the remainder of 2021, $18,141 in 2022, and the remainder thereafter based on scheduled vesting of the stock options and restricted stock units outstanding at September 30, 2021. During the three months ended June 30, 2021, we issued two common stock warrants to an outside consulting firm. The first warrant was for up to an aggregate of 441,867 shares at an exercise price per share equal to $0.01 per share, and the second warrant was for up to an aggregate of 662,800 shares at an exercise price per share equal to $3.72 per share. During the three months ended June 30, 2021, we recognized approximately $917 in share-based compensation expense, which is included in the restructure charge. During the three months ended June 30, 2021, 55,233 shares from the first warrant and 82,850 shares from the second warrant vested. We have terminated the relationship with the outside consulting firm and there will be no further vesting. As of September 30, 2021, we agreed to provide the holder of the warrants a cash payment in exchange for the cancellation of the first warrant, including the 55,233 shares vested. The remaining 82,850 shares vested under the second warrant were outstanding as of September 30, 2021 and remain exercisable, subject to and conditioned upon the rights and restrictions contained in such warrant. On July 28, 2021, we signed a definitive agreement to acquire all of the issued and outstanding shares, options, warrants, convertible securities and other outstanding equity interests of Moov. As part of the purchase agreement, there is an incentive equity pool of $30,000 of restricted stock units to be granted to former Moov employees (including the Co-Founder) if they meet certain vesting criteria as follows: • $10,000 is subject to time-based vesting over a period of either 36 or 48 months; and • $20,000 is subject to achieving certain financial and operational metrics by June 30, 2025. We are recognizing the expense associated with this equity grant over a 28 month period. This resulted in a total of 11,198 restricted stock units, most of which will be granted as inducements to employment in accordance with NASDAQ Listing Rule 5635(c)(4). Also, in connection with our acquisition of Moov we agreed to assume all outstanding issued but unvested Moov stock options under the 2017 Moov Corporation Equity Incentive Plan. Following such conversion, we issued 818 stock options subject to time-based vesting under the Restated 2007 Plan, with exercises prices between $0.38 and $0.58 per share. During the three months ended March 31, 2021, we entered into transition agreements with four executives, which resulted in the modification of previously issued equity grants. The modifications were the result of us accelerating vesting after termination and extending the period of time the employee receives to exercise their outstanding non-qualified stock options. The extension of time to exercise their outstanding non-qualified stock options for the four individuals impacted ranged from six months to two years. The incremental expense recorded as a result of the modifications was $4,310, of which $1,116 was included in restructure charge, and $3,194 included in general and administrative expense.

Operating Leases - Right of Use

Operating Leases - Right of Use Assets and Purchase Commitments	9 Months Ended
	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Operating Leases - Right of Use Assets and Purchase Commitments	Operating Leases - Right of Use Assets and Purchase Commitments Right of Use Assets We have various operating leases for office space that expire through 2030. Below is a summary of our right of use assets and liabilities as of September 30, 2021. Right-of-use assets $ 7,683 Lease liability obligations, current $ 1,966 Lease liability obligations, less current portion 10,045 Total lease liability obligations $ 12,011 Weighted-average remaining lease term 7.9 years Weighted-average discount rate 5.05 % During the three months ended September 30, 2021, we recognized approximately $398 in operating lease costs. Operating lease costs of $97 are included in cost of revenue, and $301 are included in operating expenses in our consolidated statements of operations. During the three months ended September 30, 2021, cash paid for operating leases was approximately $754. For the nine months ended September 30, 2021, we recognized approximately $1,827 in operating lease costs. Operating lease costs of $340 are included in cost of revenue, and $1,487 are included in operating expenses in our consolidated statements of operations. For the nine months ended September 30, 2021, cash paid for operating leases was approximately $2,317. During the three months ended September 30, 2020, we recognized approximately $752 in operating lease costs. Operating lease costs of $111 are included in cost of revenue, and $641 are included in operating expenses in our consolidated statements of operations. During the three months ended September 30, 2020, cash paid for operating leases was approximately $473. For the nine months ended September 30, 2020, we recognized approximately $2,350 in operating lease costs. Operating lease costs of $360 are included in cost of revenue, and $1,990 are included in operating expenses in our consolidated statements of operations. For the nine months ended September 30, 2020, cash paid for operating leases was approximately $1,438. Approximate future minimum lease payments for our right of use assets over the remaining lease periods as of September 30, 2021, are as follows: Remainder of 2021 $ 678 2022 2,391 2023 1,811 2024 1,441 2025 1,440 Thereafter 6,829 Total minimum payments 14,590 Less: amount representing interest 2,579 Total $ 12,011 Purchase Commitments We have long-term commitments for bandwidth usage and co-location with various networks and Internet service providers. The following summarizes our minimum non-cancellable commitments for future periods as of September 30, 2021: Remainder of 2021 $ 18,911 2022 39,027 2023 17,941 2024 8,960 2025 5,993 Thereafter 3,372 Total minimum payments $ 94,204

Concentrations

Concentrations	9 Months Ended
	Sep. 30, 2021
Risks and Uncertainties [Abstract]
Concentrations	Concentrations During the three and nine months ended September 30, 2021, we had two clients, Amazon and Sony, who each represented 10% or more of our total revenue. During the three months ended September 30, 2020, we had one client, Amazon who represented 10% or more of our total revenue. During the nine months ended September 30, 2020, we had two clients, Amazon and Sony who each represented 10% or more of our total revenue. Revenue from clients located within the United States, our country of domicile, was $33,405 for the three months ended September 30, 2021, compared to $38,075 for the three months ended September 30, 2020. For the nine months ended September 30, 2021, revenue from clients located within the United States $90,576, compared to $107,698 for the nine months ended September 30, 2020.

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Income taxes for the interim periods presented have been included in the accompanying consolidated financial statements on the basis of an estimated annual effective tax rate. Based on an estimated annual effective tax rate and discrete items, income tax expense for the three months ended September 30, 2021 and 2020 was $211 and $66, respectively. For the nine months ended September 30, 2021 and 2020, income tax expense was $718 and $377, respectively. Income tax expense was different than the statutory income tax rate primarily due to us providing for a valuation allowance on deferred tax assets in certain jurisdictions, and the recording of state and foreign tax expense for the three month periods. We file income tax returns in jurisdictions with varying statutes of limitations. Tax years 2017 through 2019 remain subject to examination by federal tax authorities. Tax years 2016 through 2019 generally remain subject to examination by state tax authorities. As of September 30, 2021, we are not under any federal or state examination for income taxes. For the three and nine months ended September 30, 2021 and 2020, there was no impact to income tax expense related to the Global Intangible Low-Taxed Income inclusion (GILTI) as a result of our net operating loss carryforwards (NOL) and valuation allowance position. We do not expect the GILTI to have a material impact on future earnings due to our NOL and valuation allowance position. On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act (CARES Act) was enacted in response to the COVID-19 pandemic. The CARES Act, among other things, permits NOL carryovers and carrybacks to offset 100% of taxable income for taxable years beginning before 2021. In addition, the CARES Act allows NOLs incurred in 2018, 2019, and 2020 to be carried back to each of the five preceding taxable years to generate a refund of previously paid income taxes. We have evaluated the impact of the CARES Act, and do not expect that the NOL carryback provision of the CARES Act will result in a cash benefit to us.

Segment Reporting and Geographi

Segment Reporting and Geographic Areas	9 Months Ended
	Sep. 30, 2021
Segment Reporting [Abstract]
Segment Reporting and Geographic Areas	Segment Reporting and Geographic Areas Our chief operating decision maker (who is our Chief Executive Officer) reviews our financial information presented on a consolidated basis for purposes of allocating resources and evaluating our financial performance. We operate in one industry segment — content delivery and related services and we operate in three geographic areas — Americas, Europe, Middle East, and Africa (EMEA), and Asia Pacific. Revenue by geography is based on the location of the client from which the revenue is earned. The following table sets forth our revenue by geographic area: Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Americas $ 34,065 62 % $ 38,594 65 % $ 92,432 60 % $ 109,652 63 % EMEA 6,427 12 % 8,590 15 % 20,986 14 % 27,411 16 % Asia Pacific 14,710 26 % 12,059 20 % 41,327 26 % 37,738 21 % Total revenue $ 55,202 100 % $ 59,243 100 % $ 154,745 100 % $ 174,801 100 % The following table sets forth the individual countries and their respective revenue for those countries whose revenue exceeded 10% of our total revenue: Three Months Ended September 30, Nine Months Ended September 30, Country / Region 2021 2020 2021 2020 United States / Americas $ 33,405 $ 38,075 $ 90,576 $ 107,698 United Kingdom / EMEA $ 2,675 $ 6,939 $ 13,031 $ 22,016 Japan / Asia Pacific $ 7,925 $ 7,703 $ 23,584 $ 24,251 The following table sets forth long-lived assets by geographic area in which the assets are located: September 30, December 31, 2021 2020 Americas $ 25,764 $ 32,626 International 10,628 13,792 Total long-lived assets $ 36,392 $ 46,418

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2021
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements As of September 30, 2021, and December 31, 2020, we held certain assets and liabilities that were required to be measured at fair value on a recurring basis. The following is a summary of fair value measurements at September 30, 2021: Fair Value Measurements at Reporting Date Using Description Total Quoted Prices In Active Markets for Identical Assets Significant Significant Assets: Money market funds (2) $ 8,528 $ 8,528 $ — $ — Certificate of deposit (1) 1,915 — 1,915 — Corporate notes and bonds (1) 14,771 — 14,771 — Municipal securities (1) 19,555 — 19,555 — Total assets measured at fair value $ 44,769 $ 8,528 $ 36,241 $ — _______________ (1) Classified in marketable securities (2) Classified in cash and cash equivalents The following is a summary of fair value measurements at December 31, 2020: Fair Value Measurements at Reporting Date Using Description Total Quoted Prices In Active Markets for Identical Assets Significant Significant Assets: Money market funds (2) $ 12,370 $ 12,370 $ — $ — Certificate of deposit (1) 551 — 551 — Corporate notes and bonds (1) 45,385 — 45,385 — Municipal securities 31,032 — 31,032 — Total assets measured at fair value $ 89,338 $ 12,370 $ 76,968 $ — _______________ (1) Classified in marketable securities (2) Classified in cash and cash equivalents The carrying amount of cash equivalents approximates fair value because their maturity is less than three months. The carrying amount of short-term and long-term marketable securities approximates fair value as the securities are marked to market as of each balance sheet date with any unrealized gains and losses reported in stockholders’ equity. The carrying amount of accounts receivable, accounts payable, and accrued liabilities approximates fair value due to the short-term maturity of the amounts.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited interim consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities Exchange Commission (SEC). They do not include all of the information and footnotes required by U.S. generally accepted accounting principles (U.S. GAAP) for complete financial statements. Such interim financial information is unaudited but reflects all adjustments that are, in the opinion of management, necessary for the fair presentation of the interim periods presented and of a normal recurring nature. This quarterly report on Form 10-Q should be read in conjunction with our audited financial statements and footnotes included in our annual report on Form 10-K for the fiscal year ended December 31, 2020. All information is presented in thousands, except per share amounts and where specifically noted.
Use of Estimates	Use of Estimates The preparation of the consolidated financial statements and related disclosures in conformity with U.S. GAAP requires management to make judgments, assumptions, and estimates that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results and outcomes may differ from those estimates. The results of operations presented in this quarterly report on Form 10-Q are not necessarily indicative of the results that may be expected for the year ending December 31, 2021, or for any future periods.
Recent Accounting Standards	Recent Accounting Standards Adopted Accounting Standards In December 2019, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2019-12 to simplifying the accounting for income taxes. ASU 2019-12 is intended to simplify various aspects related to accounting for income taxes, eliminates certain exceptions to the general principles in the Accounting Standards Codification (ASC) Topic 740 related to intra-period tax allocation, simplifies when companies recognize deferred taxes in an interim period, and clarifies certain aspects of the current guidance to promote consistent application. We adopted this guidance effective January 1, 2021. The adoption of this guidance did not have a material impact on our consolidated financial statements and related disclosures. In August 2020, the FASB issued ASU 2020-06, which simplifies the accounting for convertible instruments. ASU 2020-06 eliminates certain models that require separate accounting for embedded conversion features, in certain cases. Additionally, among other changes, the guidance eliminates certain of the conditions for equity classification for contracts in an entity’s own equity. ASU 2020-06 also requires entities to use the if-converted method for all convertible instruments in the diluted earnings per share calculation and include the effect of share settlement for instruments that may be settled in cash or shares, except for certain liability-classified share-based payment awards. We early adopted this guidance on January 1, 2021, on a modified retrospective basis. As a result of the adoption of ASU 2020-06, our total remaining interest expense over the contractual terms of our convertible debt will be approximately $20,823 less than under the previous accounting standards. The adoption resulted in a $21,733 decrease in additional paid in capital from the derecognition of the bifurcated equity component, $20,255 increase in debt from the derecognition of the discount associated with the bifurcated equity component and $1,677 decrease to the opening balance of accumulated deficit, representing the cumulative interest expense recognized related to the amortization of the bifurcated conversion option. We wrote-off the related deferred tax liabilities with a corresponding adjustment to the valuation allowance, resulting in no net tax impact to the cumulative adjustment to retained earnings. Recently Issued Accounting Standards In October 2021, the FASB issued ASU 2021-08, which provides amendments to improve, simplify, and provide consistency for recognition and measurement of acquired contract assets and contract liabilities from revenue contracts in a business combination. The amendments require that an acquirer recognize and measure such contract assets and contract liabilities under Topic 606, Revenue from Contracts with Customers, as if it had originated the contracts. The amendments also allow for election of certain practical expedients, which are applied on an acquisition-by-acquisition basis. The new accounting amendments are effective for us beginning in fiscal 2023 with prospective application. Early adoption is permitted, including in any interim period, and if elected, the amendments are applied retrospectively for any acquisitions that occurred in the fiscal year of interim adoption. We expect to early adopt this ASU and are evaluating the impacts of the amendments on our condensed consolidated financial statements.
Restructuring Charges	Restructuring Charges
Convertible Senior Notes	Convertible Senior Notes
Business Combinations	Business Combinations In accounting for acquisitions through which a set of assets and activities are transferred to us, we perform an initial test to determine whether substantially all of the fair value of the gross assets transferred are concentrated in a single identifiable asset or a group of similar identifiable assets, such that the acquisition would not represent a business. If the initial test does not result in substantially all of the fair value concentrated in a single or group of similar assets, we then perform a second test to evaluate whether the assets and activities transferred include inputs and substantive processes that, together, significantly contribute to the ability to create outputs, which would constitute a business. If the result of the second test indicates that the acquired assets and activities constitute a business, we account for the transaction as a business combination. For our business combinations, we allocate the purchase consideration of the acquisition, which includes the estimated acquisition date fair value of contingent consideration (if applicable), to the tangible assets, liabilities and identifiable intangible assets acquired based on each of the estimated fair values at the acquisition date. The excess of the purchase consideration over the fair values is recorded as goodwill. Determining the fair value of such items requires judgment, including estimating future cash flows or the cost to recreate an acquired asset. Acquisition-related expenses are expensed as incurred, except for those costs incurred to issue debt or equity securities (if applicable), and are included in general and administrative expense in our consolidated statements of operations. During and up to the one-year period beginning with the acquisition date, we may record certain purchase accounting adjustments related to the fair value of assets acquired and liabilities assumed against goodwill. After the final determination of the fair value of assets acquired or liabilities assumed, any subsequent adjustments are recorded to our consolidated statements of operations. The fair value of contingent consideration liabilities assumed from an acquisition are remeasured each reporting period after the acquisition date and the changes in the estimated fair value, if any, are recorded within operating expenses in our consolidated statement of operations for such period. In accounting for income taxes in a business combination, changes in the deferred tax asset valuations allowance and income tax uncertainties after the acquisition date will be recognized through income tax expense in our consolidated statement of operations each reporting period. The results of operations of the acquired business are included in our consolidated statement of operations since the date of acquisition.
Finite Intangible Assets	Finite Intangible Assets Finite-lived intangible assets are amortized over the following estimated useful lives: Trade name 3.0 years Customer relationships 5.0 years Technology 7.0 years Our finite-lived intangible assets are primarily amortized on a straight-line basis. We annually evaluate the estimated remaining useful lives of our intangible assets to determine whether events or changes in circumstances warrant a revision to the remaining period of amortization. Long-lived and finite-lived intangible assets are reviewed for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be fully recoverable. An impairment loss is recognized if the sum of the expected long-term undiscounted cash flows the asset is expected to generate is less than its carrying amount. Any write-downs are treated as permanent reductions in the carrying amount of the respective asset. Our analysis did not indicate impairment during any of the periods presented.
Share-Based Compensation	Share-Based Compensation We account for our share-based compensation awards using the fair-value method. The grant date fair value was determined using the Black-Scholes-Merton pricing model. The Black-Scholes-Merton valuation calculation requires us to make key assumptions such as future stock price volatility, expected terms, risk-free rates, and dividend yield. Our expected volatility is derived from our volatility rate as a publicly traded company. The expected term is based on our historical experience. The risk-free interest factor is based on the United States Treasury yield curve in effect at the time of the grant for zero coupon United States Treasury notes with maturities of approximately equal to each grant’s expected term. We have never paid cash dividends and do not currently intend to pay cash dividends, and therefore, we have assumed a 0% dividend yield.
Revenue Recognition	Revenue Recognition Revenues are recognized when control of the promised goods or services is transferred to our clients, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
Schedule of Finite-Lived Intangible Assets	Finite-lived intangible assets are amortized over the following estimated useful lives: Trade name 3.0 years Customer relationships 5.0 years Technology 7.0 years Intangible assets consist of the following as of September 30, 2021: Gross Accumulated Net Trade name $ 91 $ (3) $ 88 Customer relationships 7,090 (118) 6,972 Technology 16,820 (200) 16,620 Total other intangible assets $ 24,001 $ (321) $ 23,680

Business Acquisition (Tables)

Business Acquisition (Tables)	9 Months Ended
	Sep. 30, 2021
Business Combination and Asset Acquisition [Abstract]
Schedule of Business Acquisition Purchase Price	The following table presents the allocation of the purchase price for Moov: Consideration: Cash $ 34,054 Common stock 18,433 Total consideration $ 52,487
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	The following table summarizes the allocation of the purchase consideration to the acquisition date fair value of the assets, including intangible assets, liabilities assumed and related goodwill acquired: Cash $ 3,130 Accounts receivable 2,515 Prepaid expenses and other current assets 273 Goodwill 27,479 Intangible assets Trade name 91 Customer relationships 7,090 Technology 16,820 Total assets acquired 57,398 Accounts payable and accrued liabilities 2,432 Deferred revenue 2,479 Total liabilities 4,911 Total purchase consideration $ 52,487

Investments in Marketable Sec_2

Investments in Marketable Securities (Tables)	9 Months Ended
	Sep. 30, 2021
Investments, Debt and Equity Securities [Abstract]
Summary of Marketable Securities	The following is a summary of marketable securities (designated as available-for-sale) at September 30, 2021: Amortized Gross Gross Estimated Certificate of deposit $ 1,915 $ — $ — $ 1,915 Corporate notes and bonds 14,780 7 16 14,771 Municipal securities 19,562 — 7 19,555 Total marketable securities $ 36,257 $ 7 $ 23 $ 36,241 The following is a summary of marketable securities (designated as available-for-sale) at December 31, 2020: Amortized Gross Gross Estimated Certificate of deposit $ 551 $ — $ — $ 551 Corporate notes and bonds 45,426 — 41 45,385 Municipal securities 31,039 1 8 31,032 Total marketable securities $ 77,016 $ 1 $ 49 $ 76,968
Amortized Cost and Estimated Fair Value of Marketable Securities by Maturity	The amortized cost and estimated fair value of marketable securities at September 30, 2021, by maturity are shown below: Amortized Gross Gross Estimated Available-for-sale securities: Due in one year or less $ 36,217 $ 7 $ 23 $ 36,201 Due after one year and through five years 40 — — 40 Total marketable securities $ 36,257 $ 7 $ 23 $ 36,241 The amortized cost and estimated fair value of marketable securities at December 31, 2020, by maturity are shown below: Amortized Gross Gross Estimated Available-for-sale securities: Due in one year or less $ 76,976 $ 1 $ 49 $ 76,928 Due after one year and through five years 40 — — 40 Total marketable securities $ 77,016 $ 1 $ 49 $ 76,968

Accounts Receivable, net (Table

Accounts Receivable, net (Tables)	9 Months Ended
	Sep. 30, 2021
Receivables [Abstract]
Summary of Accounts Receivable and Allowances for Doubtful Accounts	Accounts receivable, net include: September 30, December 31, 2021 2020 Accounts receivable $ 48,007 $ 32,857 Less: credit allowance (150) (170) Less: allowance for doubtful accounts (1,678) (1,012) Total accounts receivable, net $ 46,179 $ 31,675 The following is a roll-forward of the allowances for doubtful accounts related to trade accounts receivable for the nine months ended September 30, 2021 and the twelve months ended December 31, 2020: Nine Months Ended Twelve Months Ended September 30, 2021 December 31, 2020 Beginning of period $ 1,012 $ 973 Provision for credit losses 1,047 801 Write-offs (381) (762) End of period $ 1,678 $ 1,012

Prepaid Expenses and Other Cu_2

Prepaid Expenses and Other Current Assets (Tables)	9 Months Ended
	Sep. 30, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid Expenses and Other Current Assets	Prepaid expenses and other current assets include: September 30, December 31, 2021 2020 Prepaid bandwidth and backbone 1,530 3,519 VAT receivable 4,454 4,392 Prepaid expenses and insurance 3,011 2,906 Vendor deposits and other 4,401 4,771 Total prepaid expenses and other current assets $ 13,396 $ 15,588

Property and Equipment, net (Ta

Property and Equipment, net (Tables)	9 Months Ended
	Sep. 30, 2021
Property, Plant and Equipment [Abstract]
Schedule of Property and Equipment	Property and equipment, net include: September 30, December 31, 2021 2020 Network equipment $ 125,665 $ 136,788 Computer equipment and software 7,014 7,358 Furniture and fixtures 1,412 1,703 Leasehold improvements 7,158 7,470 Other equipment 18 21 Total property and equipment 141,267 153,340 Less: accumulated depreciation (104,875) (106,922) Total property and equipment, net $ 36,392 $ 46,418

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The changes in the carrying amount of goodwill for the nine months ended September 30, 2021, were as follows: Balance, December 31, 2020 $ 77,753 Foreign currency translation adjustment (332) Balance, March 31, 2021 $ 77,421 Foreign currency translation adjustment 221 Balance, June 30, 2021 $ 77,642 Acquisition of business 27,479 Foreign currency translation adjustment 100 Balance, September 30, 2021 $ 105,221
Schedule of Finite-Lived Intangible Assets	Finite-lived intangible assets are amortized over the following estimated useful lives: Trade name 3.0 years Customer relationships 5.0 years Technology 7.0 years Intangible assets consist of the following as of September 30, 2021: Gross Accumulated Net Trade name $ 91 $ (3) $ 88 Customer relationships 7,090 (118) 6,972 Technology 16,820 (200) 16,620 Total other intangible assets $ 24,001 $ (321) $ 23,680
Schedule of Intangible Assets Future Amortization Expense	As of September 30, 2021, future amortization expense related to our other intangible assets is expected to be recognized as follows: Remainder of 2021 $ 963 2022 3,851 2023 3,851 2024 3,841 2025 3,821 Thereafter 7,353 Total $ 23,680

Other Current Liabilities (Tabl

Other Current Liabilities (Tables)	9 Months Ended
	Sep. 30, 2021
Other Liabilities Disclosure [Abstract]
Schedule of Other Current Liabilities	Other current liabilities include: September 30, December 31, 2021 2020 Accrued compensation and benefits $ 6,789 $ 5,964 Accrued cost of revenue 2,649 5,036 Accrued interest payable 729 1,894 Restructuring charges 712 — Accrued legal fees 1,133 61 Other accrued expenses 5,938 4,605 Total other current liabilities $ 17,950 $ 17,560

Debt (Tables)

Debt (Tables)	9 Months Ended
	Sep. 30, 2021
Debt Disclosure [Abstract]
Schedule of Convertible Debt	The net carrying amount of the liability and equity components of the Notes was as follows: September 30, December 31, 2021 2020 Liability component: Principal $ 125,000 $ 125,000 Debt discount (equity component) — (20,823) Unamortized transaction costs (3,424) (3,232) Net carrying amount $ 121,576 $ 100,945 Equity component, net of transaction costs $ — $ 21,733 Interest expense recognized related to the Notes was as follows: Three Months Ended Nine Months Ended September 30, 2021 September 30, 2020 September 30, 2021 September 30, 2020 Contractual interest expense $ 1,094 $ 791 $ 3,259 $ 791 Amortization of debt discount — 753 — 753 Amortization of transaction costs 204 115 604 115 Total $ 1,298 $ 1,659 $ 3,863 $ 1,659

Restructuring Charge (Tables)

Restructuring Charge (Tables)	9 Months Ended
	Sep. 30, 2021
Restructuring and Related Activities [Abstract]
Schedule of Restructuring Reserve	The following table summarizes the activity of our restructuring accrual (recorded in other current liabilities on our condensed consolidated balance sheet) during the three and nine months ended September 30, 2021 (in thousands): Employee Severance and Related Benefits Share-Based Compensation Facilities Related Charges Professional Fees and Other Total Balance as of January 1, 2021 $ — $ — $ — $ — $ — Costs incurred (recorded in restructuring charge) 3,513 1,354 — 2,006 6,873 Cash disbursements (1,143) — — (237) (1,380) Non-cash charges — (1,354) — — (1,354) Balance as of March 31, 2021 $ 2,370 $ — $ — $ 1,769 $ 4,139 Costs incurred (recorded in restructuring charge) (247) 917 1,485 2,155 Cash disbursements (1,203) — (2,902) (4,105) Non-cash charges — (917) — — (917) Balance as of June 30, 2021 $ 920 $ — $ — $ 352 $ 1,272 Costs incurred (recorded in restructuring charge) (1) (236) 1,882 125 1,770 Cash disbursements (357) — (465) (822) Non-cash charges (9) 383 (1,882) — (1,508) Balance as of September 30, 2021 $ 553 $ 147 $ — $ 12 $ 712

Net Loss per Share (Tables)

Net Loss per Share (Tables)	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Computation of Basic and Diluted Net Loss per Share	The following table sets forth the components used in the computation of basic and diluted net loss per share for the periods indicated (in thousands, except per share data): Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Net loss $ (10,105) $ (3,985) $ (49,332) $ (10,968) Basic weighted average outstanding shares of common stock 126,791 122,363 125,710 120,519 Basic weighted average outstanding shares of common stock 126,791 122,363 125,710 120,519 Dilutive effect of stock options, restricted stock units, and other equity incentive plans — — — — Diluted weighted average outstanding shares of common stock 126,791 122,363 125,710 120,519 Basic net loss per share $ (0.08) $ (0.03) $ (0.39) $ (0.09) Diluted net loss per share: $ (0.08) $ (0.03) $ (0.39) $ (0.09)
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	For the three and nine months ended September 30, 2021 and 2020, respectively, the following potentially dilutive common stock, including awards granted under our equity incentive compensation plans were excluded from the computation of diluted net loss per share because including them would have been anti-dilutive. Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Employee stock purchase plan 314 187 314 187 Stock options and warrants 1,243 6,676 2,574 6,401 Restricted stock units 11,521 1,894 11,979 1,984 Convertible senior notes 14,654 14,654 14,654 14,654 27,732 23,411 29,521 23,226

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	9 Months Ended
	Sep. 30, 2021
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Loss	Changes in the components of accumulated other comprehensive loss, net of tax, for the nine months ended September 30, 2021, was as follows: Foreign Available for Currency Sale Securities Total Balance, December 31, 2020 $ (7,460) $ (51) $ (7,511) Other comprehensive loss before reclassifications (1,012) 32 (980) Amounts reclassified from accumulated other comprehensive — — — Net current period other comprehensive loss (1,012) 32 (980) Balance, September 30, 2021 $ (8,472) $ (19) $ (8,491)

Share-Based Compensation (Table

Share-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2021
Share-based Payment Arrangement [Abstract]
Components of Share-based Compensation Expense	The following table summarizes the components of share-based compensation expense included in our consolidated statements of operations: Three Months Ended Nine Months Ended 2021 2020 2021 2020 Share-based compensation expense by type: Stock options and warrants $ 144 $ 1,024 $ 7,395 $ 3,143 Restricted stock units 3,300 713 8,579 8,413 ESPP 213 186 503 682 Total share-based compensation expense $ 3,657 $ 1,923 $ 16,477 $ 12,238 Share-based compensation expense: Cost of services $ 438 $ 130 $ 1,142 $ 1,685 General and administrative expense 2,301 1,272 10,203 5,770 Sales and marketing expense 640 206 1,598 2,756 Research and development expense 662 315 1,647 2,027 Restructuring charge (384) — 1,887 — Total share-based compensation expense $ 3,657 $ 1,923 $ 16,477 $ 12,238

Operating Leases - Right of U_2

Operating Leases - Right of Use Assets and Purchase Commitments (Tables)	9 Months Ended
	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Summary of Right-of-use Assets and Lease Liabilities	Below is a summary of our right of use assets and liabilities as of September 30, 2021. Right-of-use assets $ 7,683 Lease liability obligations, current $ 1,966 Lease liability obligations, less current portion 10,045 Total lease liability obligations $ 12,011 Weighted-average remaining lease term 7.9 years Weighted-average discount rate 5.05 %
Future Minimum Lease Payments Over Remaining Lease Periods	Approximate future minimum lease payments for our right of use assets over the remaining lease periods as of September 30, 2021, are as follows: Remainder of 2021 $ 678 2022 2,391 2023 1,811 2024 1,441 2025 1,440 Thereafter 6,829 Total minimum payments 14,590 Less: amount representing interest 2,579 Total $ 12,011
Minimum Purchase Commitments	The following summarizes our minimum non-cancellable commitments for future periods as of September 30, 2021: Remainder of 2021 $ 18,911 2022 39,027 2023 17,941 2024 8,960 2025 5,993 Thereafter 3,372 Total minimum payments $ 94,204

Segment Reporting and Geograp_2

Segment Reporting and Geographic Areas (Tables)	9 Months Ended
	Sep. 30, 2021
Segment Reporting [Abstract]
Revenue Earned by Geographic Area	The following table sets forth our revenue by geographic area: Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Americas $ 34,065 62 % $ 38,594 65 % $ 92,432 60 % $ 109,652 63 % EMEA 6,427 12 % 8,590 15 % 20,986 14 % 27,411 16 % Asia Pacific 14,710 26 % 12,059 20 % 41,327 26 % 37,738 21 % Total revenue $ 55,202 100 % $ 59,243 100 % $ 154,745 100 % $ 174,801 100 %
Schedule of Concentration of Revenue by Country	The following table sets forth the individual countries and their respective revenue for those countries whose revenue exceeded 10% of our total revenue: Three Months Ended September 30, Nine Months Ended September 30, Country / Region 2021 2020 2021 2020 United States / Americas $ 33,405 $ 38,075 $ 90,576 $ 107,698 United Kingdom / EMEA $ 2,675 $ 6,939 $ 13,031 $ 22,016 Japan / Asia Pacific $ 7,925 $ 7,703 $ 23,584 $ 24,251
Long-lived Assets by Geographical Area	The following table sets forth long-lived assets by geographic area in which the assets are located: September 30, December 31, 2021 2020 Americas $ 25,764 $ 32,626 International 10,628 13,792 Total long-lived assets $ 36,392 $ 46,418

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2021
Fair Value Disclosures [Abstract]
Summary of Fair Value Investments	The following is a summary of fair value measurements at September 30, 2021: Fair Value Measurements at Reporting Date Using Description Total Quoted Prices In Active Markets for Identical Assets Significant Significant Assets: Money market funds (2) $ 8,528 $ 8,528 $ — $ — Certificate of deposit (1) 1,915 — 1,915 — Corporate notes and bonds (1) 14,771 — 14,771 — Municipal securities (1) 19,555 — 19,555 — Total assets measured at fair value $ 44,769 $ 8,528 $ 36,241 $ — _______________ (1) Classified in marketable securities (2) Classified in cash and cash equivalents The following is a summary of fair value measurements at December 31, 2020: Fair Value Measurements at Reporting Date Using Description Total Quoted Prices In Active Markets for Identical Assets Significant Significant Assets: Money market funds (2) $ 12,370 $ 12,370 $ — $ — Certificate of deposit (1) 551 — 551 — Corporate notes and bonds (1) 45,385 — 45,385 — Municipal securities 31,032 — 31,032 — Total assets measured at fair value $ 89,338 $ 12,370 $ 76,968 $ — _______________ (1) Classified in marketable securities (2) Classified in cash and cash equivalents

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Jul. 27, 2020	Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Increase (decrease) in equity	$ 141,323	$ 130,884	$ 175,192	$ 177,679		$ 169,815	$ 166,537
Convertible senior notes, net	$ 121,576		100,945
Expected dividend rate	0.00%
Additional Paid-In Capital
Debt Instrument [Line Items]
Increase (decrease) in equity	$ 571,268	550,205	556,512	552,559		541,363	530,285
Accumulated Deficit
Debt Instrument [Line Items]
Increase (decrease) in equity	$ (421,588)	$ (411,483)	(373,933)	$ (365,624)		$ (361,639)	$ (354,656)
Cumulative effect of adoption of new accounting pronouncement
Debt Instrument [Line Items]
Decrease in interest payable			20,823
Increase (decrease) in equity			(20,056)
Convertible senior notes, net			20,255
Cumulative effect of adoption of new accounting pronouncement | Additional Paid-In Capital
Debt Instrument [Line Items]
Increase (decrease) in equity			(21,733)
Cumulative effect of adoption of new accounting pronouncement | Accumulated Deficit
Debt Instrument [Line Items]
Increase (decrease) in equity			$ 1,677
Convertible Senior Notes due 2025 | Convertible debt
Debt Instrument [Line Items]
Aggregate principal amount					$ 125,000
Stated interest rate					3.50%

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Schedule of Finite-Lived Intangible Assets (Details)	9 Months Ended
	Sep. 30, 2021
Trade name
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful life	3 years
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful life	5 years
Technology
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful life	7 years

Summary of Significant Accoun_6

Summary of Significant Accounting Policies - Revenue Recognition (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Jul. 28, 2021
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contract terms				These clients have entered into contracts with contract terms generally from one to four years.
Committed revenue from minimum commitment contracts	$ 4,051	$ 4,051		$ 4,051
Revenue recognized in period		2,418	$ 1,911	6,774	$ 6,008
Moov Corporation
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Committed revenue from minimum commitment contracts	1,981	1,981		1,981
Deferred revenue	2,479	$ 2,479		$ 2,479		$ 2,479
Revenue recognized, excluding opening balance	$ 498
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining unsatisfied performance obligations to be recognized period	3 months	3 months		3 months
Percent of remaining unsatisfied performance obligations to be recognized	47.00%	47.00%		47.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-10-01 | Moov Corporation
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining unsatisfied performance obligations to be recognized period	3 months	3 months		3 months
Percent of remaining unsatisfied performance obligations to be recognized	46.00%	46.00%		46.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining unsatisfied performance obligations to be recognized period	1 year	1 year		1 year
Percent of remaining unsatisfied performance obligations to be recognized	51.00%	51.00%		51.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01 | Moov Corporation
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining unsatisfied performance obligations to be recognized period	1 year	1 year		1 year
Percent of remaining unsatisfied performance obligations to be recognized	54.00%	54.00%		54.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining unsatisfied performance obligations to be recognized period	1 year	1 year		1 year
Percent of remaining unsatisfied performance obligations to be recognized	2.00%	2.00%		2.00%

Business Acquisition - Narrativ

Business Acquisition - Narrative (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	1 Months Ended	3 Months Ended	8 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2021	Aug. 31, 2021	Sep. 30, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Acquired intangible assets, weighted average useful life				6 years 4 months 24 days
Moov Corporation
Business Acquisition [Line Items]
Business acquisition, percentage of interests acquired	100.00%	100.00%		100.00%
Consideration transferred	$ 52,487
Consideration transferred, cash	$ 34,054
Consideration transferred, number of shares issued	6,878
Consideration transferred, equity	$ 18,433
Contingent consideration, liability	$ 4,300	$ 4,300		$ 4,300
Cash consideration, earnout period	3 years
Business acquisition, share price (in dollars per share)	$ 2.68	$ 2.68		$ 2.68
Revenue of acquiree since acquisition date		$ 817		$ 817
Loss of acquiree since acquisition date		450		450
Revenue of acquiree prior to acquisition date			$ 8,969		$ 13,400
Loss of acquiree prior to acquisition date			$ 628		$ 600
Business acquisition, transaction costs		$ 1,263		$ 1,441

Business Acquisition - Schedule

Business Acquisition - Schedule of Business Acquisition Purchase Price (Details) - Moov Corporation $ in Thousands	1 Months Ended
	Sep. 30, 2021USD ($)
Consideration:
Cash	$ 34,054
Common stock	18,433
Total consideration	$ 52,487

Business Acquisition - Schedu_2

Business Acquisition - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jul. 28, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Goodwill	$ 105,221		$ 77,642	$ 77,421	$ 77,753
Moov Corporation
Business Acquisition [Line Items]
Cash	3,130
Accounts receivable	2,515
Prepaid expenses and other current assets	273
Goodwill	27,479
Total assets acquired	57,398
Accounts payable and accrued liabilities	2,432
Deferred revenue	2,479	$ 2,479
Total liabilities	4,911
Total purchase consideration	52,487
Moov Corporation | Trade name
Business Acquisition [Line Items]
Intangible assets	91
Moov Corporation | Customer relationships
Business Acquisition [Line Items]
Intangible assets	7,090
Moov Corporation | Technology
Business Acquisition [Line Items]
Intangible assets	$ 16,820

Investments in Marketable Sec_3

Investments in Marketable Securities - Summary of Marketable Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 36,257	$ 77,016
Gross Unrealized Gains	7	1
Gross Unrealized Losses	23	49
Estimated Fair Value	36,241	76,968
Certificate of deposit
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,915	551
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value	1,915	551
Corporate notes and bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	14,780	45,426
Gross Unrealized Gains	7	0
Gross Unrealized Losses	16	41
Estimated Fair Value	14,771	45,385
Municipal securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	19,562	31,039
Gross Unrealized Gains	0	1
Gross Unrealized Losses	7	8
Estimated Fair Value	$ 19,555	$ 31,032

Investments in Marketable Sec_4

Investments in Marketable Securities - Amortized Cost and Estimated Fair Value of Marketable Securities by Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Amortized Cost, Due in one year or less	$ 36,217	$ 76,976
Amortized Cost, Due after one year and through five years	40	40
Amortized Cost	36,257	77,016
Gross Unrealized Gains, Due in one year or less	7	1
Gross Unrealized Gains, Due after one year and through five years	0	0
Gross Unrealized Gains	7	1
Gross Unrealized Losses, Due in one year or less	23	49
Gross Unrealized Losses, Due after one year and through five years	0	0
Gross Unrealized Losses	23	49
Estimated Fair Value, Due in one year or less	36,201	76,928
Estimated Fair Value, Due after one year and through five years	40	40
Estimated Fair Value	$ 36,241	$ 76,968

Accounts Receivable, net (Detai

Accounts Receivable, net (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Summary of Accounts Receivable, net
Accounts receivable	$ 48,007		$ 32,857
Less: credit allowance	(150)		(170)
Less: allowance for doubtful accounts	(1,678)		(1,012)
Total accounts receivable, net	46,179		31,675
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning of period	1,012	$ 973	973
Provision for credit losses	1,047	$ 476	801
Write-offs	(381)		(762)
End of period	$ 1,678		$ 1,012

Prepaid Expenses and Other Cu_3

Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Prepaid Expense and Other Assets, Current [Abstract]
Prepaid bandwidth and backbone	$ 1,530	$ 3,519
VAT receivable	4,454	4,392
Prepaid expenses and insurance	3,011	2,906
Vendor deposits and other	4,401	4,771
Total prepaid expenses and other current assets	$ 13,396	$ 15,588

Property and Equipment, net - S

Property and Equipment, net - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Property and equipment, net
Total property and equipment	$ 141,267	$ 153,340
Less: accumulated depreciation	(104,875)	(106,922)
Total property and equipment, net	36,392	46,418
Network equipment
Property and equipment, net
Total property and equipment	125,665	136,788
Computer equipment and software
Property and equipment, net
Total property and equipment	7,014	7,358
Furniture and fixtures
Property and equipment, net
Total property and equipment	1,412	1,703
Leasehold improvements
Property and equipment, net
Total property and equipment	7,158	7,470
Other equipment
Property and equipment, net
Total property and equipment	$ 18	$ 21

Property and Equipment, net - N

Property and Equipment, net - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Property, Plant and Equipment [Abstract]
Cost of revenue depreciation expense	$ 5,685	$ 5,602	$ 17,293	$ 16,112
Operating expense depreciation	$ 409	$ 384	$ 1,497	$ 1,049

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Narrative (Details)	3 Months Ended	9 Months Ended
	Sep. 30, 2021USD ($)	Sep. 30, 2021USD ($)reportingUnit
Finite-Lived Intangible Assets [Line Items]
Number of reporting units | reportingUnit		1
Amortization expense, intangible assets	$ 321,000	$ 321,000
Impairment of intangible assets	$ 0	$ 0
Acquired intangible assets, weighted average useful life		6 years 4 months 24 days
Trade name
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, weighted average useful life		3 years
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, weighted average useful life		5 years
Technology
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, weighted average useful life		7 years

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Schedule of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021
Goodwill [Roll Forward]
Beginning balance	$ 77,642	$ 77,421	$ 77,753
Acquisition of business	27,479
Foreign currency translation adjustment	100	221	(332)
Ending balance	$ 105,221	$ 77,642	$ 77,421

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) $ in Thousands	Sep. 30, 2021USD ($)
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 24,001
Accumulated Amortization	(321)
Net Carrying Amount	23,680
Trade name
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	91
Accumulated Amortization	(3)
Net Carrying Amount	88
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	7,090
Accumulated Amortization	(118)
Net Carrying Amount	6,972
Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	16,820
Accumulated Amortization	(200)
Net Carrying Amount	$ 16,620

Goodwill and Other Intangible_6

Goodwill and Other Intangible Assets - Schedule of Intangible Assets Future Amortization Expense (Details) $ in Thousands	Sep. 30, 2021USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder of 2021	$ 963
2022	3,851
2023	3,851
2024	3,841
2025	3,821
Thereafter	7,353
Net Carrying Amount	$ 23,680

Other Current Liabilities (Deta

Other Current Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Other Liabilities Disclosure [Abstract]
Accrued compensation and benefits	$ 6,789			$ 5,964
Accrued cost of revenue	2,649			5,036
Accrued interest payable	729			1,894
Restructuring charges	712	$ 1,272	$ 4,139	0
Accrued legal fees	1,133			61
Other accrued expenses	5,938			4,605
Total other current liabilities	$ 17,950			$ 17,560

Debt - Narrative (Details)

Debt - Narrative (Details) $ / shares in Units, shares in Millions	Jul. 27, 2020USD ($)tradingDay$ / sharesshares	Jul. 31, 2020USD ($)	Nov. 30, 2015USD ($)	Sep. 30, 2021USD ($)	Sep. 30, 2020USD ($)	Sep. 30, 2021USD ($)	Sep. 30, 2020USD ($)	Jun. 30, 2021USD ($)	Dec. 31, 2020USD ($)	Jul. 22, 2020$ / shares	Jun. 30, 2020USD ($)	Dec. 31, 2019USD ($)
Line of Credit Facility [Line Items]
Share price (in dollars per share) | $ / shares										$ 6.69
Increase (decrease) in equity				$ 141,323,000	$ 177,679,000	$ 141,323,000	$ 177,679,000	$ 130,884,000	$ 175,192,000		$ 169,815,000	$ 166,537,000
Convertible senior notes, net				121,576,000		121,576,000			100,945,000
Convertible debt, fair value				111,238,000		111,238,000			114,233,000
Costs incurred for capped calls					16,413,000		16,413,000
Additional Paid-In Capital
Line of Credit Facility [Line Items]
Increase (decrease) in equity				571,268,000	552,559,000	571,268,000	552,559,000	550,205,000	556,512,000		541,363,000	530,285,000
Costs incurred for capped calls					16,413,000		16,413,000
Accumulated Deficit
Line of Credit Facility [Line Items]
Increase (decrease) in equity				(421,588,000)	(365,624,000)	(421,588,000)	(365,624,000)	$ (411,483,000)	(373,933,000)		$ (361,639,000)	$ (354,656,000)
Cumulative effect of adoption of new accounting pronouncement
Line of Credit Facility [Line Items]
Decrease in interest payable									20,823,000
Increase (decrease) in equity									(20,056,000)
Convertible senior notes, net									20,255,000
Cumulative effect of adoption of new accounting pronouncement | Additional Paid-In Capital
Line of Credit Facility [Line Items]
Increase (decrease) in equity									(21,733,000)
Cumulative effect of adoption of new accounting pronouncement | Accumulated Deficit
Line of Credit Facility [Line Items]
Increase (decrease) in equity									1,677,000
Capped call
Line of Credit Facility [Line Items]
Initial strike price (in dollars per share) | $ / shares	$ 8.53
Initial cap price (in dollars per share) | $ / shares	$ 13.38
Number of shares covered by capped calls | shares	14.7
Costs incurred for capped calls	$ 16,400,000
Convertible Senior Notes due 2025 | Convertible debt
Line of Credit Facility [Line Items]
Aggregate principal amount	$ 125,000,000
Stated interest rate	3.50%
Additional principal amount, option	$ 15,000,000
Net proceeds from debt issuance	$ 120,741,000
Conversion price (in dollars per share) | $ / shares	$ 8.53
Conversion ratio	0.1172367
Share price premium	27.50%
Carrying amount		$ 102,500,000		121,576,000		121,576,000			100,945,000
Effective interest rate		8.60%
Equity component, gross amount		$ 22,500,000
Debt term		5 years
Transaction costs, liability component	$ 3,400,000
Transaction costs, equity component	$ 859,000
Contractual interest expense				1,094,000	791,000	3,259,000	791,000
Amortization of transaction costs				204,000	115,000	604,000	115,000
Convertible Senior Notes due 2025 | Convertible debt | Maximum
Line of Credit Facility [Line Items]
Conversion ratio	0.1494768
Convertible Senior Notes due 2025 | Convertible debt | Conversion covenant one
Line of Credit Facility [Line Items]
Threshold percentage of stock price trigger	130.00%
Conversion price (in dollars per share) | $ / shares	$ 8.53
Threshold trading days | tradingDay	20
Threshold consecutive trading days | tradingDay	30
Convertible Senior Notes due 2025 | Convertible debt | Conversion covenant two
Line of Credit Facility [Line Items]
Threshold percentage of stock price trigger	98.00%
Threshold consecutive trading days | tradingDay	10
Consecutive trading days immediately after measurement period | tradingDay	5
Convertible Senior Notes due 2025 | Convertible debt | Redemption option
Line of Credit Facility [Line Items]
Threshold percentage of stock price trigger	130.00%
Threshold trading days | tradingDay	41
Threshold consecutive trading days | tradingDay	30
Redemption price percentage	100.00%
Convertible Senior Notes due 2025 | Convertible debt | Upon fundamental change
Line of Credit Facility [Line Items]
Redemption price percentage	100.00%
Revolving credit facility | Credit Agreement
Line of Credit Facility [Line Items]
Maximum borrowing amount			$ 20,000,000
Borrowing capacity limit, percent of accounts receivable			80.00%
Adjusted quick ratio, monthly report submission threshold			1.5
Proceeds from line of credit				0		0			0
Current borrowing capacity				$ 20,000,000		$ 20,000,000			$ 20,000,000
Increase in interest rate in event of default				3.00%		3.00%
Contractual interest expense				$ 0	0	$ 0	0
Amortization of transaction costs				$ 10,000	$ 15,000	$ 36,000	$ 97,000
Voting stock percentage in foreign subsidiaries						65.00%
Line of credit facility, covenant compliance, adjusted quick ratio				1		1
Revolving credit facility | Credit Agreement | Alternative base rate
Line of Credit Facility [Line Items]
Variable rate minimum						0.25%

Debt - Schedule of Convertible

Debt - Schedule of Convertible Debt (Details) - Convertible debt - Convertible Senior Notes due 2025 - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Jul. 31, 2020
Liability component:
Principal	$ 125,000		$ 125,000		$ 125,000
Debt discount (equity component)	0		0		(20,823)
Unamortized transaction costs	(3,424)		(3,424)		(3,232)
Net carrying amount	121,576		121,576		100,945	$ 102,500
Equity component, net of transaction costs					$ 21,733
Interest Expense
Contractual interest expense	1,094	$ 791	3,259	$ 791
Amortization of debt discount	0	753	0	753
Amortization of transaction costs	204	115	604	115
Total	$ 1,298	$ 1,659	$ 3,863	$ 1,659

Restructuring Charge (Details)

Restructuring Charge (Details) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Restructuring Reserve [Roll Forward]
Beginning balance	$ 1,272	$ 4,139	$ 0		$ 0
Restructuring charges	1,770	2,155	6,873	$ 0	10,798	$ 0
Cash disbursements	(822)	(4,105)	(1,380)
Non-cash charges	(1,508)	(917)	(1,354)
Ending balance	712	1,272	4,139		712
Improved growth and profitability plan
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred		2,155
Cost recovery adjustment	112
Aligning workforce and facility requirements
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred	1,882
Restructuring costs expected to be incurred	1,000				1,000
Employee Severance and Related Benefits
Restructuring Reserve [Roll Forward]
Beginning balance	920	2,370	0		0
Restructuring charges	(1)	(247)	3,513
Cash disbursements	(357)	(1,203)	(1,143)
Non-cash charges	(9)	0	0
Ending balance	553	920	2,370		553
Share-Based Compensation
Restructuring Reserve [Roll Forward]
Beginning balance	0	0	0		0
Restructuring charges	(236)	917	1,354
Cash disbursements		0	0
Non-cash charges	383	(917)	(1,354)
Ending balance	147	0	0		147
Facilities Related Charges
Restructuring Reserve [Roll Forward]
Beginning balance	0	0	0		0
Restructuring charges	1,882		0
Cash disbursements	0		0
Non-cash charges	(1,882)	0	0
Ending balance	0	0	0		0
Professional Fees and Other
Restructuring Reserve [Roll Forward]
Beginning balance	352	1,769	0		0
Restructuring charges	125	1,485	2,006
Cash disbursements	(465)	(2,902)	(237)
Non-cash charges	0	0	0
Ending balance	$ 12	$ 352	$ 1,769		$ 12

Net Loss per Share (Details)

Net Loss per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Net loss	$ (10,105)	$ (3,985)	$ (49,332)	$ (10,968)
Basic weighted average outstanding shares of common stock	126,791	122,363	125,710	120,519
Dilutive effect of stock options, restricted stock units, and other equity incentive plans (in shares)	0	0	0	0
Diluted weighted average outstanding shares of common stock	126,791	122,363	125,710	120,519
Basic net loss per share (in dollars per share)	$ (0.08)	$ (0.03)	$ (0.39)	$ (0.09)
Diluted net loss per share (in dollars per share)	$ (0.08)	$ (0.03)	$ (0.39)	$ (0.09)

Net Loss per Share - Dilutive C

Net Loss per Share - Dilutive Common Stock (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings (in shares)	27,732	23,411	29,521	23,226
Employee stock purchase plan
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings (in shares)	314	187	314	187
Stock options and warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings (in shares)	1,243	6,676	2,574	6,401
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings (in shares)	11,521	1,894	11,979	1,984
Convertible senior notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings (in shares)	14,654	14,654	14,654	14,654

Stockholders' Equity (Details)

Stockholders' Equity (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	9 Months Ended
	May 31, 2019	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Mar. 14, 2017	Jun. 30, 2013
Equity, Class of Treasury Stock [Line Items]
Issuance of common stock under employee stock purchase plan			$ 913	$ 1,074
Issuance of preferred stock authorized (in shares)		7,500,000	7,500,000		7,500,000
Employee Stock Purchase Plan
Equity, Class of Treasury Stock [Line Items]
Number of shares authorized for issuance	9,000,000						4,000,000
Increase in shares available for issuance	5,000,000
Maximum number of shares permitted to purchase per period	5,000
Discount from market price for employees			15.00%
Issuance of common stock under employee stock purchase plan, shares		0	355,000
Issuance of common stock under employee stock purchase plan			$ 913
Common stock reserved for future options and restricted stock awards (in shares)		3,330,000	3,330,000
Employee funds held by company for future purchase of shares		$ 631	$ 631
2007 Equity Incentive Plan
Equity, Class of Treasury Stock [Line Items]
Number of shares authorized for issuance		12,912,000	12,912,000
2017 Share Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Stock repurchase amount authorized						$ 25,000
Shares purchased and canceled			0	0
Remaining authorized repurchase amount		$ 21,200	$ 21,200

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 130,884	$ 169,815	$ 175,192	$ 166,537
Other comprehensive loss before reclassifications			(980)
Amounts reclassified from accumulated other comprehensive loss			0
Other comprehensive income (loss)	(526)	652	(980)	(169)
Ending balance	141,323	177,679	141,323	177,679
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(7,965)	(10,031)	(7,511)	(9,210)
Ending balance	(8,491)	$ (9,379)	(8,491)	$ (9,379)
Foreign Currency
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			(7,460)
Other comprehensive loss before reclassifications			(1,012)
Amounts reclassified from accumulated other comprehensive loss			0
Other comprehensive income (loss)			(1,012)
Ending balance	(8,472)		(8,472)
Available for Sale Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			(51)
Other comprehensive loss before reclassifications			32
Amounts reclassified from accumulated other comprehensive loss			0
Other comprehensive income (loss)			32
Ending balance	$ (19)		$ (19)

Share-Based Compensation - Comp

Share-Based Compensation - Components of Share-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Components of share-based compensation expense
Total share-based compensation expense	$ 3,657	$ 1,923	$ 16,477	$ 12,238
Cost of services
Components of share-based compensation expense
Total share-based compensation expense	438	130	1,142	1,685
General and administrative expense
Components of share-based compensation expense
Total share-based compensation expense	2,301	1,272	10,203	5,770
Sales and marketing expense
Components of share-based compensation expense
Total share-based compensation expense	640	206	1,598	2,756
Research and development expense
Components of share-based compensation expense
Total share-based compensation expense	662	315	1,647	2,027
Restructuring charge
Components of share-based compensation expense
Total share-based compensation expense	(384)	0	1,887	0
Stock options and warrants
Components of share-based compensation expense
Total share-based compensation expense	144	1,024	7,395	3,143
Restricted stock units
Components of share-based compensation expense
Total share-based compensation expense	3,300	713	8,579	8,413
ESPP
Components of share-based compensation expense
Total share-based compensation expense	$ 213	$ 186	$ 503	$ 682

Share-Based Compensation - Narr

Share-Based Compensation - Narrative (Details)	Jul. 28, 2021USD ($)$ / sharesshares	Jun. 30, 2021USD ($)$ / sharesshares	Mar. 31, 2021USD ($)participant	Sep. 30, 2021USD ($)shares	Sep. 30, 2020USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized share-based compensation expense total				$ 42,652,000
Share-based compensation expense, remainder of year				5,458,000
Share-based compensation expense, 2022				18,141,000
Class of warrants outstanding (in shares) | shares		2
Share-based compensation expense				16,477,000	$ 12,238,000
Warrants outstanding				82,850
Options granted (in shares) | shares	818
Plan modification, number of individuals impacted | participant			4
Plan modification, incremental expense			$ 4,310,000
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options, exercise price (in dollars per share) | $ / shares	$ 0.38
Plan modification, exercise extension			6 months
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options, exercise price (in dollars per share) | $ / shares	$ 0.58
Plan modification, exercise extension			2 years
Warrant, consulting firm, one
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Securities called by each warrant (in shares) | shares		441,867
Warrants, exercise price (in dollars per share) | $ / shares		$ 0.01
Warrant, consulting firm, two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Securities called by each warrant (in shares) | shares		662,800
Warrants, exercise price (in dollars per share) | $ / shares		$ 3.72
General and administrative expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Plan modification, incremental expense			$ 3,194,000
Restructuring charge
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Plan modification, incremental expense			$ 1,116,000
Stock options and warrants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized share-based compensation expense total				5,692,000
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized share-based compensation expense total				$ 36,960,000
Value outstanding	$ 30,000,000
Units outstanding (in shares) | shares	11,198
Restricted stock units | Time based vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Value outstanding	$ 10,000,000
Restricted stock units | Performance based vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Value outstanding	$ 20,000,000
Award vesting period	28 months
Restricted stock units | Minimum | Time based vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	36 months
Restricted stock units | Maximum | Time based vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	48 months
Warrants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense		$ 917,000
Warrants | Warrant, consulting firm, one
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Accelerated vesting (in shares) | shares		55,233		55,233
Warrants | Warrant, consulting firm, two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Accelerated vesting (in shares) | shares		82,850

Operating Leases - Right of U_3

Operating Leases - Right of Use Assets and Purchase Commitments - Right of Use Assets and Lease Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Operating Leased Assets [Line Items]
Right-of-use assets	$ 7,683		$ 7,683		$ 10,150
Operating lease liability obligations	1,966		1,966		2,465
Operating lease liability obligations, less current portion	10,045		10,045		$ 11,265
Total lease liability obligations	$ 12,011		$ 12,011
Weighted-average remaining lease term	7 years 10 months 24 days		7 years 10 months 24 days
Weighted-average discount rate	5.05%		5.05%
Operating lease costs	$ 398	$ 752	$ 1,827	$ 2,350
Operating cash flows from operating leases	754	473	2,317	1,438
Cost of Revenue
Operating Leased Assets [Line Items]
Operating lease costs	97	111	340	360
Operating Expenses
Operating Leased Assets [Line Items]
Operating lease costs	$ 301	$ 641	$ 1,487	$ 1,990

Operating Leases - Right of U_4

Operating Leases - Right of Use Assets and Purchase Commitments - Future Minimum Lease Payments Over Remaining Lease Periods (Details) $ in Thousands	Sep. 30, 2021USD ($)
Future minimum lease payments over remaining lease periods
Remainder of 2021	$ 678
2022	2,391
2023	1,811
2024	1,441
2025	1,440
Thereafter	6,829
Total minimum payments	14,590
Less: amount representing interest	2,579
Total	$ 12,011

Operating Leases - Right of U_5

Operating Leases - Right of Use Assets and Purchase Commitments - Minimum Purchase Commitments (Details) $ in Thousands	Sep. 30, 2021USD ($)
Minimum purchase commitments
Remainder of 2021	$ 18,911
2022	39,027
2023	17,941
2024	8,960
2025	5,993
Thereafter	3,372
Total minimum payments	$ 94,204

Concentrations (Details)

Concentrations (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021USD ($)customercountry	Sep. 30, 2020USD ($)countrycustomer	Sep. 30, 2021USD ($)customercountry	Sep. 30, 2020USD ($)countrycustomer
Concentration Risk [Line Items]
Revenue	$ 55,202	$ 59,243	$ 154,745	$ 174,801
Customer concentration | Sales revenue
Concentration Risk [Line Items]
Number of customers who represented 10% or more of total revenue | customer	2	1	2	2
Customer concentration | Sales revenue | Amazon and Sony
Concentration Risk [Line Items]
Concentration risk percentage	10.00%		10.00%	10.00%
Customer concentration | Sales revenue | Amazon
Concentration Risk [Line Items]
Concentration risk percentage		10.00%
Geographic concentration | Sales revenue
Concentration Risk [Line Items]
Concentration risk percentage	100.00%	100.00%	100.00%	100.00%
Number of countries accounting for 10% or more of revenue | country	2	3	2	3
United States / Americas | Geographic concentration | Sales revenue
Concentration Risk [Line Items]
Revenue	$ 33,405	$ 38,075	$ 90,576	$ 107,698
United States and Japan | Geographic concentration | Sales revenue
Concentration Risk [Line Items]
Concentration risk percentage	10.00%		10.00%
United States, Japan, and the United Kingdom | Geographic concentration | Sales revenue
Concentration Risk [Line Items]
Concentration risk percentage		10.00%		10.00%

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Income tax expense	$ 211	$ 66	$ 718	$ 377

Segment Reporting and Geograp_3

Segment Reporting and Geographic Areas - Narrative (Details)	9 Months Ended
	Sep. 30, 2021locationsegment
Segment Reporting [Abstract]
Number of industry segment | segment	1
Number of geographic areas | location	3

Segment Reporting and Geograp_4

Segment Reporting and Geographic Areas - Revenue Earned by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 55,202	$ 59,243	$ 154,745	$ 174,801
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	34,065	38,594	92,432	109,652
EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	6,427	8,590	20,986	27,411
Asia Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 14,710	$ 12,059	$ 41,327	$ 37,738
Sales revenue | Geographic concentration
Revenues from External Customers and Long-Lived Assets [Line Items]
Percent of revenue	100.00%	100.00%	100.00%	100.00%
Sales revenue | Geographic concentration | Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Percent of revenue	62.00%	65.00%	60.00%	63.00%
Sales revenue | Geographic concentration | EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Percent of revenue	12.00%	15.00%	14.00%	16.00%
Sales revenue | Geographic concentration | Asia Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Percent of revenue	26.00%	20.00%	26.00%	21.00%

Segment Reporting and Geograp_5

Segment Reporting and Geographic Areas - Schedule of Concentration of Revenue by Country (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Concentration Risk [Line Items]
Revenue	$ 55,202	$ 59,243	$ 154,745	$ 174,801
Geographic concentration | Sales revenue | United States / Americas
Concentration Risk [Line Items]
Revenue	33,405	38,075	90,576	107,698
Geographic concentration | Sales revenue | United Kingdom / EMEA
Concentration Risk [Line Items]
Revenue	2,675	6,939	13,031	22,016
Geographic concentration | Sales revenue | Japan / Asia Pacific
Concentration Risk [Line Items]
Revenue	$ 7,925	$ 7,703	$ 23,584	$ 24,251

Segment Reporting and Geograp_6

Segment Reporting and Geographic Areas - Long-lived Assets by Geographical Area (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Long-lived assets by geographical area
Total long-lived assets	$ 36,392	$ 46,418
Americas
Long-lived assets by geographical area
Total long-lived assets	25,764	32,626
International
Long-lived assets by geographical area
Total long-lived assets	$ 10,628	$ 13,792

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total assets measured at fair value	$ 44,769	$ 89,338
Money market funds
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total assets measured at fair value	8,528	12,370
Certificate of deposit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total assets measured at fair value	1,915	551
Corporate notes and bonds
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total assets measured at fair value	14,771	45,385
Municipal securities
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total assets measured at fair value	19,555	31,032
Quoted Prices In Active Markets for Identical Assets (Level 1)
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total assets measured at fair value	8,528	12,370
Quoted Prices In Active Markets for Identical Assets (Level 1) | Money market funds
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total assets measured at fair value	8,528	12,370
Quoted Prices In Active Markets for Identical Assets (Level 1) | Certificate of deposit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total assets measured at fair value	0	0
Quoted Prices In Active Markets for Identical Assets (Level 1) | Corporate notes and bonds
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total assets measured at fair value	0	0
Quoted Prices In Active Markets for Identical Assets (Level 1) | Municipal securities
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total assets measured at fair value	0	0
Significant Other Observable Inputs (Level 2)
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total assets measured at fair value	36,241	76,968
Significant Other Observable Inputs (Level 2) | Money market funds
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total assets measured at fair value	0	0
Significant Other Observable Inputs (Level 2) | Certificate of deposit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total assets measured at fair value	1,915	551
Significant Other Observable Inputs (Level 2) | Corporate notes and bonds
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total assets measured at fair value	14,771	45,385
Significant Other Observable Inputs (Level 2) | Municipal securities
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total assets measured at fair value	19,555	31,032
Significant Unobservable Inputs (Level 3)
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total assets measured at fair value	0	0
Significant Unobservable Inputs (Level 3) | Money market funds
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total assets measured at fair value	0	0
Significant Unobservable Inputs (Level 3) | Certificate of deposit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total assets measured at fair value	0	0
Significant Unobservable Inputs (Level 3) | Corporate notes and bonds
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total assets measured at fair value	0	0
Significant Unobservable Inputs (Level 3) | Municipal securities
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total assets measured at fair value	$ 0	$ 0