comScore (SCOR) 10-Q 6 May 21 2021 Q1 Quarterly report Financial data

Cover Page

Cover Page - shares	3 Months Ended
	Mar. 31, 2021	May 04, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2021
Document Transition Report	false
Entity File Number	001-33520
Entity Registrant Name	comScore, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	54-1955550
Entity Address, Address Line One	11950 Democracy Drive, Suite 600
Entity Address, City or Town	Reston
Entity Address, State or Province	VA
Entity Address, Postal Zip Code	20190
City Area Code	703
Local Phone Number	438-2000
Title of 12(b) Security	Common Stock, par value $0.001 per share
Trading Symbol	SCOR
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		80,686,147
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Entity Central Index Key	0001158172
Current Fiscal Year End Date	--12-31

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 29,075	$ 31,126
Restricted cash	4,797	19,615
Accounts receivable, net of allowances of $1,711 and $2,757, respectively ($1,868 and $4,045 of accounts receivable attributable to related parties, respectively)	61,540	69,379
Prepaid expenses and other current assets ($811 and $1,496 attributable to related parties, respectively)	12,048	16,910
Total current assets	107,460	137,030
Property and equipment, net	30,286	30,973
Operating right-of-use assets	30,656	28,959
Goodwill	417,339	418,327
Intangible assets, net	45,901	52,340
Deferred tax assets	2,787	2,741
Other non-current assets	9,207	7,600
Total assets	643,636	677,970
Current liabilities:
Accounts payable ($7,296 and $2,817 attributable to related parties, respectively)	36,843	36,640
Accrued expenses ($6,348 and $835 attributable to related parties, respectively)	50,674	48,380
Contract liabilities ($2,168 and $3,538 attributable to related parties, respectively)	54,472	58,529
Customer advances	14,567	12,477
Warrants liability	12,832	2,831
Current operating lease liabilities	6,551	7,024
Secured term note	0	12,644
Other current liabilities ($935 and $— attributable to related parties, respectively)	5,248	5,750
Total current liabilities	181,187	184,275
Non-current operating lease liabilities	38,212	36,127
Non-current contract liabilities	3,936	4,156
Deferred tax liabilities	1,331	627
Senior secured convertible notes (related party)	0	192,895
Financing derivatives (related party)	0	11,300
Other non-current liabilities ($2,183 and $6,120 attributable to related parties, respectively)	12,379	19,600
Total liabilities	237,045	448,980
Commitments and contingencies
Convertible redeemable preferred stock, $0.001 par value; 82,527,609 and zero shares authorized, issued and outstanding as of March 31, 2021 and December 31, 2020, respectively; aggregate liquidation preference of $204,935 as of March 31, 2021 (related parties)	188,183	0
Stockholders' equity:
Preferred stock, $0.001 par value; 7,472,391 and 5,000,000 shares authorized as of March 31, 2021 and December 31, 2020, respectively; no shares issued or outstanding as of March 31, 2021 or December 31, 2020	0	0
Common stock, $0.001 par value; 275,000,000 and 150,000,000 shares authorized as of March 31, 2021 and December 31, 2020, respectively; 87,450,943 shares issued and 80,686,147 shares outstanding as of March 31, 2021, and 79,703,342 shares issued and 72,938,546 shares outstanding as of December 31, 2020	81	73
Additional paid-in capital	1,650,837	1,621,986
Accumulated other comprehensive loss	(9,181)	(7,030)
Accumulated deficit	(1,193,345)	(1,156,055)
Treasury stock, at cost, 6,764,796 shares as of March 31, 2021 and December 31, 2020	(229,984)	(229,984)
Total stockholders' equity	218,408	228,990
Total liabilities, convertible redeemable preferred stock and stockholders' equity	$ 643,636	$ 677,970

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Current assets:
Accounts receivable allowances	$ 1,711,000	$ 2,757,000
Prepaid expenses and other current assets	12,048,000	16,910,000
Current liabilities:
Accrued expenses	50,674,000	48,380,000
Current contract liabilities	$ 54,472,000	$ 58,529,000
Convertible redeemable preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Convertible redeemable preferred stock, shares authorized (in shares)	82,527,609	0
Convertible redeemable preferred stock, shares issued (in shares)	82,527,609	0
Convertible redeemable preferred stock, shares outstanding (in shares)	82,527,609	0
Stockholders' equity:
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	7,472,391	5,000,000
Preferred stock, shares issued (in shares)	0	0
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)	275,000,000	150,000,000
Common stock, shares issued (in shares)	87,450,943	79,703,342
Common stock, shares outstanding (in shares)	80,686,147	72,938,546
Treasury stock, at cost (in shares)	6,764,796	6,764,796
Investor
Current assets:
Accounts receivable, related parties	$ 1,868,000	$ 4,045,000
Prepaid expenses and other current assets	811,000	1,496,000
Current liabilities:
Accounts payable	7,296,000	2,817,000
Accrued expenses	6,348,000	835,000
Current contract liabilities	2,168,000	3,538,000
Other current liabilities	935,000	0
Other non-current liabilities	2,183,000	$ 6,120,000
Convertible redeemable preferred stock, aggregate liquidation preference	$ 204,935,000

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Revenues	[1]	$ 90,330	$ 89,528
Cost of revenues	[1],[2],[3],[4]	52,702	45,798
Selling and marketing	[2],[3],[4]	17,827	19,213
Research and development	[2],[3],[4]	10,353	10,136
General and administrative	[1],[2],[3],[4]	14,468	15,543
Amortization of intangible assets		6,439	6,918
Impairment of right-of-use and long-lived assets		0	4,671
Total expenses from operations		101,789	102,279
Loss from operations		(11,459)	(12,751)
Loss on extinguishment of debt		(9,629)	0
Other (expense) income, net		(8,274)	7,194
Interest expense, net	[1]	(7,045)	(8,846)
Gain from foreign currency transactions		1,074	804
Loss before income taxes		(35,333)	(13,599)
Income tax (provision) benefit		(1,022)	415
Net loss		(36,355)	(13,184)
Net loss available to common stockholders:
Net loss		(36,355)	(13,184)
Convertible redeemable preferred stock dividends accrued but not yet paid	[1]	(935)	0
Total net loss available to common stockholders		$ (37,290)	$ (13,184)
Net loss per common share:
Basic and diluted (in dollars per share)		$ (0.49)	$ (0.19)
Weighted-average number of shares used in per share calculation - Common Stock:
Basic and diluted (in shares)		76,147,342	70,127,939
Comprehensive loss:
Net loss		$ (36,355)	$ (13,184)
Other comprehensive loss:
Foreign currency cumulative translation adjustment		(2,151)	(2,873)
Total comprehensive loss		$ (38,506)	$ (16,057)
[1]	(1) Transactions with related parties are included in the line items above (refer to Footnote 8 , Related Party Transactions, of the Notes to Condensed Consolidated Financial Statements for additional information).
[2]	(2) Excludes amortization of intangible assets, which is presented as a separate line item.
[3]	(3) Stock-based compensation expense is included in the line items above as follows: Three Months Ended March 31, 2021 2020 Cost of revenues $ 855 $ 209 Selling and marketing 955 609 Research and development 642 56 General and administrative 2,485 1,784 Total stock-based compensation expense $ 4,937 $ 2,658
[4]	(4) Lease cost, net of sublease income, is included in the line items above as follows: Three Months Ended March 31, 2021 2020 Operating lease cost Cost of revenues $ 815 $ 891 Selling and marketing 905 1,099 Research and development 615 601 General and administrative 443 683 Total operating lease cost $ 2,778 $ 3,274 Amortization of right-of-use assets Cost of revenues $ 328 $ 285 Selling and marketing 49 41 Research and development 40 44 General and administrative 26 20 Total amortization of right-of-use assets $ 443 $ 390

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Share-based Payment Arrangement, Noncash Expense [Abstract]
Stock-based compensation expense	$ 4,937	$ 2,658
Lease, Cost [Abstract]
Operating lease cost	2,778	3,274
Amortization of right-of-use assets	443	390
Cost of revenues
Share-based Payment Arrangement, Noncash Expense [Abstract]
Stock-based compensation expense	855	209
Lease, Cost [Abstract]
Operating lease cost	815	891
Amortization of right-of-use assets	328	285
Selling and marketing
Share-based Payment Arrangement, Noncash Expense [Abstract]
Stock-based compensation expense	955	609
Lease, Cost [Abstract]
Operating lease cost	905	1,099
Amortization of right-of-use assets	49	41
Research and development
Share-based Payment Arrangement, Noncash Expense [Abstract]
Stock-based compensation expense	642	56
Lease, Cost [Abstract]
Operating lease cost	615	601
Amortization of right-of-use assets	40	44
General and administrative
Share-based Payment Arrangement, Noncash Expense [Abstract]
Stock-based compensation expense	2,485	1,784
Lease, Cost [Abstract]
Operating lease cost	443	683
Amortization of right-of-use assets	$ 26	$ 20

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF CONVERTIBLE REDEEMABLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit	Treasury stock, at cost
Beginning balance (in shares) at Dec. 31, 2019		70,065,130
Beginning balance at Dec. 31, 2019	$ 258,974	$ 70	$ 1,609,358	$ (12,333)	$ (1,108,137)	$ (229,984)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(13,184)				(13,184)
Restricted stock units distributed (in shares)		157,384
Amortization of stock-based compensation	2,609		2,609
Foreign currency translation adjustment	(2,873)			(2,873)
Payments for taxes related to net share settlement of equity awards (in shares)		(15,597)
Payments for taxes related to net share settlement of equity awards	(65)		(65)
Ending balance (in shares) at Mar. 31, 2020		70,206,917
Ending balance at Mar. 31, 2020	$ 245,461	$ 70	1,611,902	(15,206)	(1,121,321)	(229,984)
Beginning balance (in shares) at Dec. 31, 2020	0
Beginning balance at Dec. 31, 2020	$ 0
Convertible Redeemable Preferred Stock
Convertible redeemable preferred stock, net of issuance costs (in shares)	82,527,609
Convertible redeemable preferred stock, net of issuance costs	$ 188,183
Ending balance (in shares) at Mar. 31, 2021	82,527,609
Ending balance at Mar. 31, 2021	$ 188,183
Beginning balance (in shares) at Dec. 31, 2020		72,938,546
Beginning balance at Dec. 31, 2020	228,990	$ 73	1,621,986	(7,030)	(1,156,055)	(229,984)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(36,355)				(36,355)
Convertible redeemable preferred stock dividends accrued but not yet paid	(935)				(935)
Interest paid in Common Stock (in shares)		4,165,781
Interest paid in Common Stock	$ 10,812	$ 4	10,808
Conversion shares issued as extinguishment cost on senior secured convertible notes (in shares)	0	3,150,000
Conversion shares issued as extinguishment cost on senior secured convertible notes	$ 9,608	$ 3	9,605
Restricted stock units distributed (in shares)		442,051
Restricted stock units distributed	1	$ 1
Settlement of restricted stock unit liability	7,117		7,117
Amortization of stock-based compensation	1,358		1,358
Foreign currency translation adjustment	(2,151)			(2,151)
Payments for taxes related to net share settlement of equity awards (in shares)		(10,231)
Payments for taxes related to net share settlement of equity awards	(37)		(37)
Ending balance (in shares) at Mar. 31, 2021		80,686,147
Ending balance at Mar. 31, 2021	$ 218,408	$ 81	$ 1,650,837	$ (9,181)	$ (1,193,345)	$ (229,984)

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Operating activities:
Net loss	$ (36,355)	$ (13,184)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Change in fair value of warrants liability	10,001	(4,651)
Loss on extinguishment of debt	9,629	0
Amortization of intangible assets	6,439	6,918
Stock-based compensation expense	4,937	2,658
Non-cash interest expense on senior secured convertible notes (related party)	4,692	0
Depreciation	4,054	3,384
Accretion of debt discount	1,620	1,769
Non-cash operating lease expense	1,262	1,369
Deferred tax provision	638	42
Amortization expense of finance leases	443	390
Amortization of deferred financing costs	320	348
Change in fair value of financing derivatives	(1,800)	(2,387)
Impairment of right-of-use and long-lived assets	0	4,671
Other	120	492
Changes in operating assets and liabilities:
Accounts receivable	7,326	2,820
Prepaid expenses and other assets	3,119	(1,022)
Accounts payable, accrued expenses and other liabilities	4,970	(9,522)
Contract liabilities and customer advances	(2,085)	2,893
Operating lease liabilities	(1,442)	(1,769)
Net cash provided by (used in) operating activities	17,888	(4,781)
Investing activities:
Capitalized internal-use software costs	(3,535)	(3,872)
Purchases of property and equipment	(157)	(45)
Net cash used in investing activities	(3,692)	(3,917)
Financing activities:
Principal payments on finance leases	(466)	(407)
Principal payments on software license arrangements	(112)	(77)
Payments for taxes related to net share settlement of equity awards	(37)	(65)
Proceeds from issuance of convertible redeemable preferred stock, net of issuance costs (related parties)	188,183	0
Net cash used in financing activities	(30,477)	(549)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(588)	(927)
Net decrease in cash, cash equivalents and restricted cash	(16,869)	(10,174)
Cash, cash equivalents and restricted cash at beginning of period	50,741	66,773
Cash, cash equivalents and restricted cash at end of period	33,872	56,599
Total cash, cash equivalents and restricted cash	33,872	56,599
Supplemental cash flow disclosures:
Interest paid ($— and $6,120 attributable to related party, respectively)	462	6,795
Income taxes paid, net of refunds	335	338
Supplemental disclosures of non-cash investing and financing activities:
Interest paid in Common Stock (related party)	10,812	0
Conversion shares issued as extinguishment cost on senior secured convertible notes (related party)	9,608	0
Settlement of restricted stock unit liability	7,118	0
Right-of-use assets obtained in exchange for operating lease liabilities	2,977	0
Convertible redeemable preferred stock dividends accrued but not yet paid (related parties)	935	0
Change in accounts payable and accrued expenses related to capital expenditures	553	423
Convertible senior notes
Financing activities:
Principal payment and extinguishment costs	(204,014)	0
Secured Term Note
Financing activities:
Principal payment and extinguishment costs	$ (14,031)	$ 0

CONDENSED CONSOLIDATED STATEM_5

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Interest paid	$ 462	$ 6,795
Investor
Interest paid	$ 0	$ 6,120

Organization

Organization	3 Months Ended
	Mar. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	Organization comScore, Inc., together with its consolidated subsidiaries (collectively, "Comscore" or the "Company"), headquartered in Reston, Virginia, is a global information and analytics company that measures audiences, consumer behavior and advertising across media platforms. Operating segments are defined as components of a business that can earn revenues and incur expenses for which discrete financial information is available that is evaluated on a regular basis by the chief operating decision maker ("CODM"). The Company's CODM is its Chief Executive Officer, who decides how to allocate resources and assess performance. The Company has one operating segment. A single management team reports to the CODM, who manages the entire business. The Company's CODM reviews consolidated results of operations to make decisions, allocate resources and assess performance and does not evaluate the profit or loss from any separate geography or product line. Uses and Sources of Liquidity and Management's Plans The Company's primary need for liquidity is to fund working capital requirements and capital expenditures of its business. The Company has secured the following long-term financing in order to increase its available working capital: • On January 7, 2021, the Company entered into separate Securities Purchase Agreements with each of Charter Communications Holding Company, LLC ("Charter"), Qurate Retail, Inc. ("Qurate") and Pine Investor, LLC ("Pine") (the "Securities Purchase Agreements"). The issuance of securities pursuant to the Securities Purchase Agreements (the "Transactions") and related matters were approved by the Company's stockholders on March 9, 2021 and completed on March 10, 2021. At the closing of the Transactions, the Company issued and sold (a) to Charter, 27,509,203 shares of Series B Convertible Preferred Stock ("Preferred Stock") in exchange for $68.0 million, (b) to Qurate, 27,509,203 shares of Preferred Stock in exchange for $68.0 million and (c) to Pine, 27,509,203 shares of Preferred Stock in exchange for $68.0 million. The proceeds from the Transactions were used to repay the Company's senior secured convertible notes. In addition, the Company repaid its secured term note and certain transaction-related expenses with cash from its balance sheet. For additional information on the Transactions and related debt extinguishment, refer to Footnote 4 , Debt and Footnote 5 , Convertible Redeemable Preferred Stock and Stockholders' Equity. • On June 26, 2019, the Company issued 2,728,513 shares of Common Stock and four series of warrants in a private placement to CVI Investments, Inc. ("CVI") in exchange for gross cash proceeds of $20.0 million. On October 14, 2019, the Company issued 2,728,513 shares of Common Stock to CVI upon exercise by CVI of the Series C warrant. On March 10, 2021, upon closing of the Transactions, the exercise price of the Series A warrant was adjusted pursuant to an antidilution provision in the warrant. For additional information, refer to Footnote 5 , Convertible Redeemable Preferred Stock and Stockholders' Equity. Repayment of the senior secured convertible notes and the secured term note strengthened the Company's financial position and resulted in the termination of the affirmative and negative covenants set forth in those instruments, including covenants requiring maintenance of certain minimum cash balances. In addition, repayment eliminated the 12.0% annual interest payable under the senior secured convertible notes, which was replaced by a 7.5% annual dividend payable on the Preferred Stock.

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2021
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Basis of Presentation and Consolidation The accompanying Condensed Consolidated Financial Statements include the accounts of the Company and its wholly-owned domestic and foreign subsidiaries. All intercompany transactions and balances are eliminated upon consolidation. Unaudited Interim Financial Information The interim Condensed Consolidated Financial Statements included in this quarterly report have been prepared by the Company and are unaudited, pursuant to the rules and regulations of the United States Securities and Exchange Commission ("SEC"). Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States ("GAAP") have been condensed or omitted pursuant to such rules and regulations. However, the Company believes that the disclosures contained in this quarterly report comply with the requirements of Section 13(a) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), for a quarterly report on Form 10-Q and are adequate to make the information presented not misleading. The interim Condensed Consolidated Financial Statements included herein reflect all adjustments (consisting of normal recurring adjustments) which are, in the opinion of management, necessary for a fair presentation of the financial position, results of operations and cash flows for the interim periods presented. These interim Condensed Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements and Notes thereto contained in the Company's Annual Report on Form 10-K for the year ended December 31, 2020 (the "2020 10-K"). The Condensed Consolidated Results of Operations for the three months ended March 31, 2021 are not necessarily indicative of the results to be anticipated for the entire year ending December 31, 2021 or thereafter. All references to March 31, 2021 and 2020 in the Notes to Condensed Consolidated Financial Statements are unaudited. Use of Estimates and Judgments in the Preparation of the Condensed Consolidated Financial Statements The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the reported amounts of revenue and expense during the reporting periods. Significant estimates and judgments are inherent in the analysis and the measurement of management's standalone selling price, principal versus agent revenue recognition, determination of performance obligations, determination of transaction price, including the determination of variable consideration and allocation of transaction price to performance obligations, deferred tax assets and liabilities, including the identification and quantification of income tax liabilities due to uncertain tax positions, the valuation and recoverability of goodwill, intangible and other long-lived assets, the determination of appropriate discount rates for lease accounting, the probability of exercising either lease renewal or termination clauses, the assessment of potential loss from contingencies, the fair value determination of financing-related liabilities and warrants, the allowance for doubtful accounts, and the valuation of options, performance-based and market-based stock awards. Management bases its estimates and assumptions on historical experience and on various other factors that are believed to be reasonable under the circumstances. Due to the inherent uncertainty involved in making estimates, particularly in the current environment, actual results reported in future periods may be affected by changes in those estimates. The Company evaluates its estimates and assumptions on an ongoing basis. Loss on Extinguishment of Debt The Company applies the provisions of Accounting Standards Codification ("ASC") 470, Debt , to determine whether amendments to, or repayments of, its debt agreements should be accounted for as a modification or extinguishment event. Loss on extinguishment of debt represents the difference between the carrying value of the Company's debt instruments and any consideration paid to its creditors in the form of cash or shares of the Company's Common Stock on the extinguishment date. In the three months ended March 31, 2021, the Company recorded a $9.6 million loss on debt extinguishment related to the payoff of the senior secured convertible notes (the "Notes") and the secured promissory note (the "Secured Term Note") on March 10, 2021. These transactions are described in Footnote 4 , Debt . Other (Expense) Income, Net Three Months Ended March 31, (In thousands) 2021 2020 Change in fair value of financing derivatives $ 1,800 $ 2,387 Change in fair value of warrants liability (10,001) 4,651 Other (73) 156 Total other (expense) income, net $ (8,274) $ 7,194 Preferred Stock On March 10, 2021, in connection with the Securities Purchase Agreements described in Footnote 1 , Organization , the Company issued 82,527,609 shares of Preferred Stock in exchange for gross cash proceeds of $204.0 million. The shares were issued at a par value of $0.001. Net proceeds from the Transactions totaled $188.2 million after deducting issuance costs. The holders of the Preferred Stock are entitled to cumulative annual dividends to be paid on June 30 of each year. The annual dividend accrues on a daily basis from and including the issuance date of such share, whether or not declared, at a rate of 7.5% per annum. In the event the annual dividends are not paid in cash on the annual payment date, the dividends shall continue to accrue at a dividend rate of 9.5%. The Preferred Stock includes a change of control put option which allows the holders of the Preferred Stock to require the Company to repurchase such holders' shares in cash in an amount equal to the initial purchase price plus accrued dividends. The change of control put option was determined to be a derivative liability under ASC 815, Derivatives and Hedging . As of March 31, 2021, the probability of a change of control was determined to be remote, and the fair value of the change of control derivative was determined to be negligible. The Preferred Stock is contingently redeemable upon certain deemed liquidation events, such as a change in control. Because a deemed liquidation event could constitute a redemption event outside of the Company's control, all shares of Preferred Stock have been presented outside of permanent equity in mezzanine equity on the Condensed Consolidated Balance Sheets. The instrument is initially recognized at fair value net of issuance costs. The Company reassesses whether the Preferred Stock is currently redeemable, or probable to become redeemable in the future, as of each reporting date. If the instrument meets either of these criteria, the Company will accrete the carrying value to the redemption value. The Preferred Stock has not been adjusted to its redemption amount as of March 31, 2021 because a deemed liquidation event is not considered probable. All financial instruments that are classified as mezzanine equity are evaluated for embedded derivative features by evaluating each feature against the nature of the host instrument (e.g. more equity-like or debt-like). Features identified as embedded derivatives that are material are recognized separately as a derivative asset or liability in the consolidated financial statements. Effective January 1, 2021, the Company early adopted Accounting Standards Update ("ASU") 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity's Own Equity (Subtopic 815-40). This ASU simplifies accounting for convertible instruments, enhances disclosure requirements related to the terms and features of convertible instruments, and amends the guidance for the derivatives scope exception for contracts settled in an entity's own equity. This ASU removes from GAAP the separation models for (1) convertible debt with a Cash Conversion Feature and (2) convertible instruments with a Beneficial Conversion Feature. Upon adoption of this new ASU, entities will account for a convertible debt instrument wholly as debt, and for convertible preferred stock wholly as preferred stock, unless (1) a convertible instrument contains features that require bifurcation as a derivative under ASC 815, or (2) a convertible debt instrument was issued at a substantial premium. As a result of the adoption, no embedded features were identified requiring bifurcation under the new model, other than the change of control redemption feature. The Company adopted the standard using the modified retrospective approach. The standard had no impact on the senior secured convertible notes issued by the Company and, as a result, there was no cumulative adjustment recorded upon adoption. Income Taxes The Company anticipates the Transactions will trigger limitations on its net operating loss carryforwards under Section 382 of the Internal Revenue Code. As such, the amount of net operating loss carryforwards the Company can use in the future to offset U.S. federal and state taxable income may be limited, resulting in the expiration of a portion of the carryforwards prior to use. Due to the Company's valuation allowance position in the U.S., the required revaluation of its deferred tax assets related to these limited U.S. federal and state net operating loss carryforwards did not have a material impact on the Condensed Consolidated Financial Statements or related disclosures. Loss Per Share The Company uses the two-class method to calculate loss per share. The two-class method is an earnings allocation formula that treats a participating security as having rights to earnings that otherwise would have been available to common shareholders. Under the two-class method, earnings for the period are allocated between common shareholders and participating security holders based on their respective rights to receive dividends as if all undistributed book earnings for the period were distributed. Basic loss per share is computed by dividing net income attributable to only the common shareholders by the weighted-average number of common shares outstanding for the period. Diluted loss per share includes the impact of share-based compensation to the extent the effect is dilutive. In periods where a net loss is reported, the anti-dilutive effect of preferred shares, warrants, senior secured convertible notes, stock options, restricted stock units and deferred stock units are excluded and diluted net loss per share is equal to basic net loss per share. The following is a summary of the Common Stock equivalents for the securities outstanding during the respective periods that have been excluded from the computation of diluted net loss per common share, as their effect would be anti-dilutive: Three Months Ended March 31, 2021 2020 Preferred stock 19,472,807 — Warrants 5,457,026 7,308,409 Senior secured convertible notes 4,981,309 6,519,655 Stock options, restricted stock units and deferred stock units 3,614,221 3,158,550 Total 33,525,363 16,986,614 As of March 31, 2021, $0.9 million in dividends have accrued on the Preferred Stock which have not yet been paid. These dividends have been included in calculating the total net loss available to common stockholders used in the calculation of basic and dilutive loss per share. Impairment of Right-of-use ("ROU") and Long-lived Assets In the three months ended March 31, 2020, the Company concluded the carrying value of certain facility lease ROU and other long-lived assets may not be recoverable. In its assessment, the Company considered changes in the real estate market related to the COVID-19 pandemic, that led to an increase in the estimated marketing time, and a reduction of expected receipts, for properties on the market for sublease. The Company performed a quantitative asset impairment test using a discounted cash flow model. Certain ROU and related leasehold improvements failed the asset impairment test; and as a result the Company recorded a $4.7 million non-cash impairment charge. Although the Company believes that the carrying values of its long-lived assets are appropriately stated as of March 31, 2021, future changes in strategy or market conditions, significant technological developments or significant changes in legal or regulatory factors could significantly impact these judgments and require adjustments to recorded asset balances. Allowance for Doubtful Accounts The Company generally grants uncollateralized credit terms to its customers and maintains an allowance for doubtful accounts to reserve for uncollectible receivables. Allowances are based on management's judgment, which considers historical collection experience adjusted for current conditions or expected future conditions based on reasonable and supportable forecasts, a specific review of all significant outstanding receivables, an assessment of company-specific credit conditions and general economic conditions. Management considered the impact of the COVID-19 pandemic, including customer payment delays and requests from customers to revise contractual payment terms, in determining the Company's allowance for doubtful accounts. The table below summarizes the change in balance of the allowance for doubtful accounts: Three months ended March 31, (In thousands) 2021 2020 Beginning Balance $ (2,757) $ (1,919) Bad debt benefit (expense) 30 (492) Recoveries (77) (44) Write-offs 1,093 308 Ending Balance $ (1,711) $ (2,147) Other Accounting Standards Recently Adopted In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740), which simplifies the accounting for income taxes primarily by eliminating certain exemptions. The amendments are effective for fiscal years beginning after December 15, 2020, including interim periods within those fiscal years. An entity is permitted to early adopt any removed or modified disclosures upon issuance of the update and to delay adoption of the additional disclosures until their effective date. The Company adopted the new standard effective January 1, 2021, which had no impact on the Condensed Consolidated Financial Statements or related disclosures.

Revenue Recognition

Revenue Recognition	3 Months Ended
	Mar. 31, 2021
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Revenue Recognition The following table presents the Company's revenue disaggregated by solution group, geographical market and timing of transfer of products and services. The Company has one reportable segment in accordance with ASC 280, Segment Reporting ; as such, the disaggregation of revenue below reconciles directly to its unique reportable segment. Three Months Ended March 31, (In thousands) 2021 2020 By solution group : Ratings and Planning (1) $ 65,806 $ 63,521 Analytics and Optimization (1) 17,701 15,501 Movies Reporting and Analytics 6,823 10,506 Total $ 90,330 $ 89,528 By geographical market : United States $ 77,774 $ 77,146 Europe 8,271 7,483 Canada 1,744 1,562 Latin America 1,576 2,020 Other 965 1,317 Total $ 90,330 $ 89,528 By timing of revenue recognition : Products and services transferred over time $ 68,116 $ 71,917 Products and services transferred at a point in time 22,214 17,611 Total $ 90,330 $ 89,528 (1) In the second quarter of 2020, the Company began classifying revenue from certain new and extended custom agreements for services that utilize its syndicated data set, previously classified under Analytics and Optimization, as Ratings and Planning. The impact was not material to either solution group. Contract Balances The following table provides information about receivables, contract assets, contract costs, contract liabilities and customer advances from contracts with customers: As of As of (In thousands) March 31, 2021 December 31, 2020 Accounts receivable, net $ 61,540 $ 69,379 Current and non-current contract assets 5,070 4,037 Current and non-current contract costs 127 430 Current contract liabilities 54,472 58,529 Current customer advances 14,567 12,477 Non-current contract liabilities 3,936 4,156 Significant changes in the contract assets and the contract liabilities balances are as follows: Contract Liabilities (Current) Three months ended March 31, (In thousands) 2021 2020 Revenue recognized that was included in the opening contract liabilities balance $ (31,891) $ (33,315) Cash received or amounts billed in advance and not recognized as revenue 30,844 37,116 Transaction Price Allocated to the Remaining Performance Obligations As of March 31, 2021, approximately $235.0 million of revenue is expected to be recognized from remaining performance obligations that are unsatisfied (or partially unsatisfied) for non-cancelable contracts. The Company expects to recognize revenue on approximately 46% of these remaining performance obligations during the remainder of 2021, approximately 31% in 2022, and approximately 11% in 2023, with the remainder recognized thereafter. Costs to Obtain or Fulfill a Contract As of March 31, 2021 and December 31, 2020, the Company had $0.1 million and $0.4 million, respectively, in capitalized contract costs. For the three months ended March 31, 2021 and 2020, amortized and expensed contract costs were $2.6 million and $0.3 million, respectively.

Debt

Debt	3 Months Ended
	Mar. 31, 2021
Debt Disclosure [Abstract]
Debt	Debt Senior Secured Convertible Notes and Financing Derivatives During 2018, the Company entered into certain agreements with funds affiliated with or managed by Starboard Value LP (collectively, "Starboard"), pursuant to which the Company issued and sold to Starboard a total of $204.0 million in senior secured convertible notes (the "Notes"), which initially accrued interest at 6.0%, as well as warrants to purchase shares of the Company's common stock, par value $0.001 per share (the "Common Stock") in exchange for $100.0 million in cash and 4,000,000 shares of Common Stock. The warrants were exercised in full by Starboard on April 3, 2019 for 323,448 shares of Common Stock. The Notes contained, among other features, an interest rate reset feature which the Company determined represented an embedded derivative that must be bifurcated and accounted for separately from the Notes. This feature reset the interest rate on the Notes based on the trading price of the Company's Common Stock. In January 2019, the interest rate reset to 12.0% where it was scheduled to remain through the contractual maturity of the Notes on January 16, 2022. Interest on the Notes was payable on a quarterly basis in arrears, at the option of the Company, in cash, or, subject to certain conditions, through the issuance by the Company of additional shares of Common Stock ("PIK Interest Shares"). On January 25, 2021, the Company paid quarterly accrued interest of $6.1 million through the issuance of 2,802,454 PIK Interest Shares. The interest paid was classified within other non-current liabilities in the Condensed Consolidated Balance Sheets as of December 31, 2020. In connection with the Transactions described in Footnote 1 , Organization , the Company used cash proceeds of $204.0 million from the issuance of shares of its Preferred Stock to extinguish the Notes and related financing derivatives on March 10, 2021. The Company also issued 3,150,000 additional shares to Starboard (the "Conversion Shares"), as additional creditor consideration, which were valued at $9.6 million based on the $3.05 closing price of the Company's Common Stock on March 9, 2021. Lastly, the Company paid interest accrued of $4.7 million for the period from January 1, 2021 to March 10, 2021 through the issuance of 1,363,327 PIK Interest Shares. The Company adjusted the interest rate reset feature to its fair value on March 10, 2021 immediately prior to extinguishment. The fair value of the interest reset derivative was estimated to be $9.5 million using a discounted cash flow method based on projected incremental cash flows through contractual maturity of the Notes and a credit-adjusted discount rate of 20.0%. The fair value of other financing derivatives embedded within the Notes was determined to be negligible. The Company recorded a loss on extinguishment of the Notes of $9.3 million for the three months ended March 31, 2021. The loss was comprised of a write-off of unamortized deferred financing costs and issuance discount of $9.2 million and issuance of Conversion Shares of $9.6 million, offset by the derecognition of the interest rate reset derivative liability valued at $9.5 million. Secured Term Note On December 31, 2019, the Company's wholly owned subsidiary, Rentrak B.V., entered into an agreement with several third parties (collectively the "Noteholder") for a secured promissory note (the "Secured Term Note") in exchange for gross proceeds of $13.0 million. The Secured Term Note was scheduled to mature on December 31, 2021, was cash collateralized, and had an annual interest rate of 9.75% that was payable monthly in arrears. The Secured Term Note included a redemption feature which, upon the occurrence of certain fundamental transactions, would require the Company to redeem the Secured Term Note in full, plus accrued interest, and remit a prepayment premium equal to the remaining contractual interest cash flows (the "interest make-whole redemption"). The Company determined this feature represented an embedded derivative that must be bifurcated and accounted for separately from the Secured Term Note. In connection with the Transactions described in Footnote 1 , Organization , the Company used restricted cash from its balance sheet to extinguish the Secured Term Note and interest make-whole redemption on March 10, 2021, of which $13.0 million and $1.0 million were for principal repayments and settlement of the interest make-whole redemption, respectively. The Company recorded a loss on extinguishment of the Secured Term Note of $0.3 million for the three months ended March 31, 2021. The loss was due to the write-off of unamortized deferred financing costs. Changes in the fair value of the interest make-whole redemption were recorded to other (expense) income, net and settlement did not impact loss on debt extinguishment. Letters of Credit In 2018, the Company entered into a Security Agreement with Wells Fargo Bank, N.A. to issue standby letters of credit. As of March 31, 2021, $3.3 million in letters of credit are outstanding and are cash collateralized under the Security Agreement with Wells Fargo Bank, N.A. Failed Sale-Leaseback Transaction In June 2019, the Company entered into a sale-leaseback arrangement with a vendor to provide $4.3 million in cash proceeds for previously acquired computer and other equipment. The arrangement is repayable over a 24-month term for total consideration of $4.8 million, with control of the equipment transferring to the vendor at the end of the leaseback term. The Company concluded the leaseback would be classified as a financing lease. Therefore, the transaction was deemed a failed sale-leaseback and was accounted for as a financing arrangement. The assets continue to be depreciated over their useful lives, and payments are allocated between interest expense and repayment of the financing liability. The remaining financing liability of $1.2 million is included within other current liabilities on the Condensed Consolidated Balance Sheet.

Convertible Redeemable Preferre

Convertible Redeemable Preferred Stock and Stockholders' Equity	3 Months Ended
	Mar. 31, 2021
Stockholders' Equity Note [Abstract]
Convertible Redeemable Preferred Stock and Stockholders' Equity	Convertible Redeemable Preferred Stock and Stockholders' Equity 2021 Issuance of Preferred Stock On March 10, 2021 (the "Closing Date"), in connection with the Transactions described in Footnote 1 , Organization, the Company issued 82,527,609 shares of Preferred Stock in exchange for gross cash proceeds of $204.0 million. The shares were issued at a par value of $0.001. Net proceeds from the Transactions totaled $188.2 million after deducting issuance costs. The Transactions and related agreements include the following rights: Registration Rights On the Closing Date, the Company entered into a Registration Rights Agreement (the "RRA") with the holders of the Preferred Stock (together with any other party that may become a party to the RRA), pursuant to which, among other things, and on the terms and subject to certain limitations set forth therein, the Company is obligated to use its reasonable best efforts to prepare and file within 120 days after the Closing Date a registration statement registering the sale or distribution of shares of Preferred Stock or Common Stock held by any holder, including any shares of Common Stock acquired by any holder pursuant to the conversion of the Preferred Stock, and any other securities issued or issuable with respect to any such shares of Common Stock or Preferred Stock by way of share split, share dividend, distribution, recapitalization, merger, exchange, replacement or similar event or otherwise (the "Registrable Securities"). In addition, pursuant to the RRA, the holders have the right to require the Company, subject to certain limitations, to effect a sale of any or all of their Registrable Securities by means of an underwritten offering or an underwritten block trade or bought deal. Conversion Provisions The Preferred Stock is convertible at the option of the holders at any time into a number of shares of Common Stock based on a conversion rate set in accordance with the Certificate of Designations of the Preferred Stock. The conversion rate is calculated as the product of (i) the conversion factor and (ii) the quotient of (A) the sum of the initial purchase price and accrued dividends with respect to each share of Preferred Stock divided by (B) the initial purchase price. The conversion right is subject to certain anti-dilution adjustments and customary provisions related to partial dividend periods. As of March 31, 2021, each share of Preferred Stock was convertible into 1.005 shares of Common Stock. At any time after the fifth anniversary of the Closing Date, the Company may elect to convert all of the outstanding shares of Preferred Stock into shares of Common Stock if (i) the closing sale price of the Company's Common Stock is greater than 140% of the conversion price as of such time, as may be adjusted pursuant to the Certificate of Designations, for certain periods, and (ii) the pro rata share of an aggregate of $100.0 million in dividends has been paid with respect to each share of Preferred Stock that was outstanding on the Closing Date and remains outstanding. As of March 31, 2021, no shares of Preferred Stock have been converted into Common Stock. Voting Rights The holders of the Preferred Stock are entitled to vote as a single class with the holders of the Common Stock, with a vote equal to the number of shares of Common Stock into which the Preferred Stock could be converted, except that the conversion rate for this purpose will be equal to the product of the applicable conversion factor and 0.98091271. Each holder of Preferred Stock is subject to a voting threshold, which limits such holder's voting rights in the event that the holder's Preferred Stock represents voting rights that exceed 16.66% of the Company's Common Stock (including the Preferred Stock on an as-converted basis). Dividend Rights The holders of Preferred Stock are entitled to participate in all dividends declared on the Common Stock on an as-converted basis and are also entitled to a cumulative dividend at the rate of 7.5% per annum, payable annually in arrears and subject to increase under certain specified circumstances. In addition, after January 1, 2022, such holders are entitled to request, and the Company will take all actions reasonably necessary to pay, a one-time dividend ("Special Dividend") equal to the highest dividend that the Company's Board of Directors determines can be paid at the applicable time (or a lesser amount agreed upon by the holders), subject to additional conditions and limitations set forth in a Stockholders Agreement entered into by the Company and the holders on the Closing Date (the "Stockholders Agreement"). As set forth in the Stockholders Agreement, the Company may be obligated to obtain debt financing in order to effectuate the Special Dividend. Anti-Dilution Adjustments The Preferred Stock is subject to anti-dilution adjustment upon the occurrence of certain events, including issuance of certain dividends or distributions to holders of Common Stock, split or combination of Common Stock, reclassification of Common Stock into a greater or lesser number of shares, or certain repurchases of Common Stock, subject to limitations set forth in the Certificate of Designations. Liquidation Preference and Change of Control Provisions The Preferred Stock ranks senior to the Common Stock with respect to dividend rights and rights on the distribution of assets in the event of a liquidation, dissolution or winding up of the affairs of the Company, and ranks junior to secured and unsecured indebtedness. The Preferred Stock has a liquidation preference equal to the higher of (i) the initial purchase price, increased by accrued dividends per share, and (ii) the amount per share of Preferred Stock that a holder would have received if such holder, immediately prior to such liquidation, dissolution or winding up of the affairs of the Company, converted such share into Common Stock. The Preferred Stock includes a change of control put option which allows the holders of the Preferred Stock to require the Company to repurchase such holders' shares at a purchase price equal to the initial purchase price, increased by accrued dividends. The change of control put option was determined to be a derivative liability under ASC 815, Derivatives and Hedging . As of March 31, 2021, the probability of a change of control was determined to be remote, and the fair value of the change of control derivative was determined to be negligible. To the extent the holders of the Preferred Stock do not exercise the put option in a covered change of control, the Company has the right to redeem the remaining Preferred Stock at a redemption price equal to the initial purchase price, increased by accrued dividends. As described above, the Preferred Stock is contingently redeemable upon certain deemed liquidation events, such as a change in control. Because a deemed liquidation event could constitute a redemption event outside of the Company's control, all shares of Preferred Stock have been presented outside of permanent equity in mezzanine equity on the Condensed Consolidated Balance Sheets. 2019 Issuance and Sale of Common Stock and Warrants On June 23, 2019, the Company entered into a Securities Purchase Agreement with CVI, pursuant to which CVI agreed to purchase (i) 2,728,513 shares of Common Stock (the "Initial Shares"), at a price of $7.33 per share and (ii) Series A Warrants, Series B-1 Warrants, Series B-2 Warrants and Series C Warrants, for aggregate gross proceeds of $20.0 million (the "Private Placement"). The Private Placement closed on June 26, 2019 (the "CVI Closing Date"). The Series B-1 Warrants and Series B-2 Warrants expired on January 29, 2020 and August 3, 2020, respectively. The Series C Warrants were exercised on October 10, 2019. As a result of this exercise, the Company issued 2,728,513 shares of Common Stock to CVI on October 14, 2019. In addition, the number of shares issuable under the Company's Series A Warrants was increased by 2,728,513. The Series A Warrants are exercisable by the holders for a period of five years from the CVI Closing Date and are currently exercisable into 5,457,026 shares of Common Stock, which is equal to the Initial Shares plus the number of shares issued pursuant to the exercise of the Series C Warrants (described above). The exercise price for the Series A Warrants was $12.00 upon issuance but was subsequently adjusted, as described below. The Series A Warrants may be exercised for cash or through a net settlement feature under certain circumstances. The exercise price for the Series A Warrants is subject to anti-dilution adjustment in certain circumstances, including upon certain issuances of capital stock. Upon the issuance of the Preferred Stock, the Company adjusted the exercise price of the Series A Warrants from $12.00 to $2.4719 per share, the closing price of the Transactions. CVI will not have the right to exercise any warrant that would result in CVI beneficially owning more than 4.99% of the outstanding Common Stock after giving effect to such exercise. CVI has the right, in its discretion, to raise this threshold up to 9.99% with 60 days' notice to the Company. In addition, if and to the extent the exercise of any warrants would, together with the issuances of the Initial Shares and the shares issued pursuant to the exercise of any other warrants, result in the issuance of 20.0% or more of the outstanding Common Stock of the Company on the CVI Closing Date (the "Exchange Cap"), the Company intends to, in lieu of issuing such shares, settle the obligation to issue such shares in cash. Management determined each warrant to be a freestanding financial instrument that qualifies for liability treatment as a result of net cash settlement features associated with the Exchange Cap provision or upon a change in control. Each warrant is initially measured at fair value and classified as a current liability on the Condensed Consolidated Balance Sheet, with subsequent changes in fair value recorded in earnings. To determine the fair value of each warrant, management utilized an option pricing model supplemented with Monte Carlo analyses in periods with multiple warrants outstanding where certain features resulted in additional valuation complexity. The estimated fair value of the Series A Warrants as of March 31, 2021 was $12.8 million. The impact of the anti-dilution adjustment, which lowered the exercise price from $12.00 to $2.4719, resulted in $6.9 million of the $10.0 million increase in estimated fair value from December 31, 2020. Refer to Footnote 6 , Fair Value Measurements , for information on the Level 3 inputs utilized for the determination of the fair value of the warrants.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The Company's financial instruments measured at fair value in the accompanying Condensed Consolidated Balance Sheets on a recurring basis consist of the following: As of As of March 31, 2021 December 31, 2020 (In thousands) Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Assets: Money market funds (1) $ 6,928 $ — $ — $ 6,928 $ 11,928 $ — $ — $ 11,928 Liabilities: Warrants issued: (2) Series A $ — $ — $ 12,832 $ 12,832 $ — $ — $ 2,831 $ 2,831 Financing derivatives: no hedging designation (3) Interest rate reset — — — — — — 11,300 11,300 Secured term note: (4) Interest make-whole derivative — — — — — — 871 871 Total liabilities $ — $ — $ 12,832 $ 12,832 $ — $ — $ 15,002 $ 15,002 (1) Level 1 cash equivalents are invested in money market funds that are intended to maintain a stable net asset value of $1.00 per share by investing in liquid, high quality U.S. dollar-denominated money market instruments with maturities less than three months. (2) The fair values of the warrants are derived from techniques which utilize inputs, certain of which are significant and unobservable, that result in classification as Level 3 fair value measurements. (3) The fair values of the financing derivatives are derived from techniques which utilize inputs, certain of which are significant and unobservable, that result in classification as Level 3 fair value measurements. Extinguishment of the Notes on March 10, 2021 resulted in derecognition of the interest rate reset derivative liability. (4) The fair value of the embedded derivative within the Secured Term Note is derived from techniques which utilize inputs, certain of which are significant and unobservable, that result in classification as Level 3 fair value measurements. Extinguishment of the Secured Term Note on March 10, 2021 resulted in settlement of the interest make-whole derivative liability. There were no changes to the Company's valuation methodologies during the three months ended March 31, 2021 or 2020. The following tables present the changes in the Company's recurring Level 3 fair valued instruments for the three months ended March 31, 2021 and 2020, respectively: (In thousands) Interest Make-whole Derivative Liability Financing Derivative Liabilities Warrants Liability Balance as of December 31, 2020 $ 871 $ 11,300 $ 2,831 Total losses (gains) included in other (expense) income, net (1) 150 (1,800) 10,001 Settlement or derecognition upon extinguishment of host debt (2) (1,021) (9,500) — Balance as of March 31, 2021 $ — $ — $ 12,832 (1) All losses and gains were recorded in other (expense) income, net in the Condensed Consolidated Statements of Operations and Comprehensive Loss. (2) Refer to Fo otnote 4 , Debt for additional information on the extinguishment of the Notes and Secured Term Notes. (In thousands) Financing Derivative Liabilities Warrants Liability Balance as of December 31, 2019 $ 21,587 $ 7,725 Total gains included in other (expense) income, net (1) (2,387) (4,651) Balance as of March 31, 2020 $ 19,200 $ 3,074 (1) Represents $1.9 million gain due to change in fair value of interest rate reset derivative liability, $0.5 million gain due to change in fair value of qualifying change of control redemption derivative liability, $4.4 million gain due to change in fair value of the Series A Warrant and $0.2 million gain due to change in fair value of the Series B-2 Warrant. All gains were recorded in other (expense) income, net in the Condensed Consolidated Statements of Operations and Comprehensive Loss. The following table displays the valuation technique and the significant inputs, certain of which are unobservable, for the Company's Level 3 liabilities that existed at the end of the current reporting period, as of March 31, 2021 and December 31, 2020 that are measured at fair value on a recurring basis: Fair Value Measurements Significant Valuation Technique Significant Valuation Inputs March 31, 2021 December 31, 2020 Warrants liability Option pricing model Stock price $3.66 $2.49 Exercise price $2.47 $12.00 Volatility 85.0% 80.0% Term 3.24 years 3.49 years Risk-free rate 0.4% 0.2% The fair value of the Company's warrants liability is estimated using an option pricing model. The primary sensitivity in the valuation of the warrants liability is driven by the Common Stock price at the measurement date and the estimated volatility of the Common Stock over the remaining term.

Accrued Expenses

Accrued Expenses	3 Months Ended
	Mar. 31, 2021
Other Liabilities Disclosure [Abstract]
Accrued Expenses	Accrued Expenses As of As of (In thousands) March 31, 2021 December 31, 2020 Accrued data costs $ 21,707 $ 19,375 Payroll and payroll-related 16,244 14,653 Professional fees 3,169 4,848 Other 9,554 9,504 Total accrued expenses $ 50,674 $ 48,380

Related Party Transactions

Related Party Transactions	3 Months Ended
	Mar. 31, 2021
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Transactions with WPP plc As of March 31, 2021 (based on public filings), WPP plc and its affiliates ("WPP") owned 11,319,363 shares of the Company's outstanding Common Stock, representing 14.0% of the outstanding Common Stock. The Company provides WPP, in the normal course of business, services amongst its different product lines and receives various services from WPP supporting the Company's data collection efforts. The Company has a cancelable five-year agreement with Lightspeed, a WPP subsidiary, to collect browsing and demographic data for individual participating households. The agreement provides that the Company makes payments to Lightspeed of approximately $5.4 million per year through December 2025. The agreement is designed to be a comprehensive data collection effort across multiple in-home devices (e.g. television, streaming devices, computers, mobile phones, tablets, gaming devices and wearables) for which data is collected and sent to the Company for use in its products. Lightspeed is paid to manage the operational aspects of panel recruitment, compliance, inventory management, support and collection of panel demographic data. The Company's results from transactions with WPP, as reflected in the Condensed Consolidated Statements of Operations and Comprehensive Loss, are detailed below: Three months ended March 31, (In thousands) 2021 2020 Revenues $ 3,326 $ 3,211 Cost of revenues 4,677 2,375 The Company has the following balances related to transactions with WPP, as reflected in the Condensed Consolidated Balance Sheets: As of As of (In thousands) March 31, 2021 December 31, 2020 Assets Accounts receivable, net $ 1,382 $ 4,045 Prepaid expenses and other current assets 811 1,496 Liabilities Accounts payable $ 2,834 $ 2,817 Accrued expenses 2,031 835 Contract liabilities 2,122 3,538 Other non-current liabilities 1,336 — Transactions with Charter, Qurate and Pine Charter, Qurate and Pine each hold 33.3% of the outstanding shares of Preferred Stock, which are entitled to convert into shares of Common Stock and to vote as a single class with the holders of the Common Stock as described in Footnote 5 , Convertible Redeemable Preferred Stock and Stockholders' Equity . In addition, Charter, Qurate and Pine each designated two directors to the Company's Board of Directors (the "Board") in accordance with the Stockholders Agreement. As of March 31, 2021, Charter, Qurate and Pine each owned 27,509,203 shares of the Company's outstanding Preferred Stock and together were entitled to $0.9 million in accrued dividends payable in cash on June 30, 2021. The accrued dividends are classified within other current liabilities in the Condensed Consolidated Balance Sheet as of March 31, 2021. Concurrent with the closing of the Transactions on March 10, 2021, the Company entered into a ten-year Data License Agreement ("DLA") with Charter Communications Operating, LLC ("Charter Operating"), an affiliate of Charter. Under the DLA, Charter Operating will bill the Company for license fees according to a payment schedule that gradually increases from $10.0 million in the first year of the term to $32.3 million in the tenth year of the term. The Company recognizes expense for the license fees ratably over the term. A portion of the annual license fees is allocated to a base license comparable to the Company's prior license with Charter Operating. The remaining fees are allocated to the additional data sets contemplated by the DLA and the designation and related endorsement of the Company as Charter Operating's preferred data measurement partner for the term. The Company's results from transactions with Charter and its affiliates, as reflected in the Condensed Consolidated Statements of Operations and Comprehensive Loss, are detailed below: (In thousands) Three months ended March 31, 2021 Revenues $ 339 Cost of revenues 5,145 The Company has the following balances related to transactions with Charter and its affiliates, as reflected in the Condensed Consolidated Balance Sheet: As of (In thousands) March 31, 2021 Assets Accounts receivable, net $ 476 Liabilities Accounts payable $ 4,449 Accrued expenses 4,317 Other non-current liabilities 847 The Company recognized revenues of $0.2 million from transactions with Qurate and its affiliates in the normal course of business during the three months ended March 31, 2021, as reflected in the Condensed Consolidated Statements of Operations and Comprehensive Loss. The Company had no transactions, other than the issuance of shares of Preferred Stock and related matters, with Pine for the three months ended March 31, 2021. Transactions with Starboard In 2018, the Company entered into certain agreements with Starboard, then a beneficial owner of more than 5.0% of the Company's outstanding Common Stock. Refer to Footnote 4 , Debt , for further information regarding these agreements and the Company's issuance of Notes to Starboard in 2018. As a result of these agreements and the transactions contemplated thereby, Starboard ceased to be a beneficial owner of more than 5.0% of the Company's outstanding Common Stock in January 2018. In addition, pursuant to a prior agreement with Starboard, the Company provided Starboard the right to designate certain members to the Company's Board. As of December 31, 2018, Starboard had no remaining right to designate any directors to the Board. As of March 31, 2021, there were no directors remaining on the Board who were designated by Starboard. In the Condensed Consolidated Statements of Operations and Comprehensive Loss, the Company recorded interest expense, inclusive of non-cash accretion of issuance discount and deferred financing costs, related to the Notes of $6.6 million and $8.2 million during the three months ended March 31, 2021 and 2020, respectively. In connection with the extinguishment of the Notes on March 10, 2021, the Company issued 3,150,000 Conversion Shares to Starboard valued at $9.6 million as discussed in Footnote 4 , Debt , which amount was included as a component of loss on extinguishment of debt in the Condensed Consolidated Statement of Operations and Comprehensive Loss. The Company had no outstanding balances related to Starboard as of March 31, 2021. The outstanding balances for the Notes, related financing derivatives, and other non-current liabilities as of December 31, 2020 are reflected in the Condensed Consolidated Balance Sheets.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Contingencies The Company is involved in various legal proceedings from time to time. The Company establishes reserves for specific legal proceedings when management determines that the likelihood of an unfavorable outcome is probable, and the amount of loss can be reasonably estimated. The Company has also identified certain other legal matters where an unfavorable outcome is reasonably possible and/or for which no estimate of possible losses can be made. In these cases, the Company does not establish a reserve until it can reasonably estimate the loss. Legal fees are expensed as incurred. The outcomes of legal proceedings are inherently unpredictable, subject to significant uncertainties, and could be material to the Company's operating results and cash flows for a particular period. Privacy Class Action Litigation On September 11, 2017, the Company and a wholly owned subsidiary, Full Circle Studies, Inc., ("Full Circle"), received demand letters on behalf of named plaintiffs and all others similarly situated alleging that the Company and Full Circle collected personal information from users under the age of 13 without verifiable parental consent in violation of Massachusetts law and the federal Children's Online Privacy Protection Act. The letters alleged that the Company and Full Circle collected such personal information by embedding advertising software development kits in applications created or developed by The Walt Disney Company. The letters sought monetary damages, attorneys' fees and damages under Massachusetts law. On June 4, 2018, the plaintiffs filed amended complaints with the U.S. District Court for the Northern District of California adding the Company and Full Circle as defendants in a purported class action (captioned Rushing, et al v. The Walt Disney Company, et al., Case No. 3:17-cv-04419-JD) against Disney, Twitter and other defendants, alleging violations of California's constitutional right to privacy and intrusion upon seclusion law, New York's deceptive trade practices statute, and Massachusetts' deceptive trade practices and right to privacy statutes. The complaints alleged damages in excess of $5.0 million, with any award to be apportioned among the defendants. On February 26, 2020, the Company and Full Circle reached an agreement with the plaintiffs to settle the complaints in full, with no admission of liability, in return for injunctive relief and payment of the plaintiffs' attorneys' fees, to be covered by the Company's insurance. The settlement received preliminary court approval on September 24, 2020. The settlement received final court approval on April 12, 2021. Other Matters In addition to the matters described above, the Company is, and may become, a party to a variety of legal proceedings from time to time that arise in the normal course of the Company's business. While the results of such legal proceedings cannot be predicted with certainty, management believes that, based on current knowledge, the final outcome of any such current pending matters will not have a material adverse effect on the Company's financial position, results of operations or cash flows. Regardless of the outcome, legal proceedings can have an adverse effect on the Company because of defense costs, diversion of management resources and other factors. Indemnification The Company has entered into indemnification agreements with each of the Company's directors and certain officers, and the Company's amended and restated certificate of incorporation requires it to indemnify each of its officers and directors, to the fullest extent permitted by Delaware law, who was or is a party or is threatened to be made a party to any threatened, pending or completed action, suit or proceeding by reason of the fact that he or she is or was a director or officer of the Company. The Company has paid and may in the future pay legal counsel fees incurred by current and former directors and officers who are involved in legal proceedings that require indemnification.

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2021
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On May 5, 2021, the Company entered into a senior secured revolving credit agreement (the "Revolving Credit Agreement") among the Company, as borrower, certain subsidiaries of the Company as guarantors, Bank of America N.A., as administrative agent, and the lenders from time to time party thereto. The Revolving Credit Agreement has a maturity of three years from the closing date of the agreement. The Revolving Credit Agreement provides a borrowing capacity equal to $25.0 million. The Company may also request the issuance of letters of credit under the Revolving Credit Agreement in an aggregate amount up to $5.0 million, which reduces the amount of available borrowings by the amount of such issued and outstanding letters of credit. The amount the Company is able to borrow is subject to compliance with the financial covenants, satisfaction of various conditions precedent to borrowing and other provisions of the Revolving Credit Agreement. The Company does not have any borrowings or letters of credit outstanding under the Revolving Credit Agreement.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2021
Accounting Policies [Abstract]
Basis of Presentation and Consolidation	The accompanying Condensed Consolidated Financial Statements include the accounts of the Company and its wholly-owned domestic and foreign subsidiaries. All intercompany transactions and balances are eliminated upon consolidation.
Unaudited Interim Financial Information	The interim Condensed Consolidated Financial Statements included in this quarterly report have been prepared by the Company and are unaudited, pursuant to the rules and regulations of the United States Securities and Exchange Commission ("SEC"). Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States ("GAAP") have been condensed or omitted pursuant to such rules and regulations. However, the Company believes that the disclosures contained in this quarterly report comply with the requirements of Section 13(a) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), for a quarterly report on Form 10-Q and are adequate to make the information presented not misleading. The interim Condensed Consolidated Financial Statements included herein reflect all adjustments (consisting of normal recurring adjustments) which are, in the opinion of management, necessary for a fair presentation of the financial position, results of operations and cash flows for the interim periods presented. These interim Condensed Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements and Notes thereto contained in the Company's Annual Report on Form 10-K
Use of Estimates and Judgments in the Preparation of the Condensed Consolidated Financial Statements	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the reported amounts of revenue and expense during the reporting periods. Significant estimates and judgments are inherent in the analysis and the measurement of management's standalone selling price, principal versus agent revenue recognition, determination of performance obligations, determination of transaction price, including the determination of variable consideration and allocation of transaction price to performance obligations, deferred tax assets and liabilities, including the identification and quantification of income tax liabilities due to uncertain tax positions, the valuation and recoverability of goodwill, intangible and other long-lived assets, the determination of appropriate discount rates for lease accounting, the probability of exercising either lease renewal or termination clauses, the assessment of potential loss from contingencies, the fair value determination of financing-related liabilities and warrants, the allowance for doubtful accounts, and the valuation of options, performance-based and market-based stock awards. Management bases its estimates and assumptions on historical experience and on various other factors that are believed to be reasonable under the circumstances. Due to the inherent uncertainty involved in making estimates, particularly in the current environment, actual results reported in future periods may be affected by changes in those estimates. The Company evaluates its estimates and assumptions on an ongoing basis.
Loss on Extinguishment of Debt	The Company applies the provisions of Accounting Standards Codification ("ASC") 470, Debt , to determine whether amendments to, or repayments of, its debt agreements should be accounted for as a modification or extinguishment event. Loss on extinguishment of debt represents the difference between the carrying value of the Company's debt instruments and any consideration paid to its creditors in the form of cash or shares of the Company's Common Stock on the extinguishment date. In the three months ended March 31, 2021, the Company recorded a $9.6 million loss on debt extinguishment related to the payoff of the senior secured convertible notes (the "Notes") and the secured promissory note (the "Secured Term Note") on March 10, 2021. These transactions are described in Footnote 4 , Debt .
Preferred Stock	The Preferred Stock includes a change of control put option which allows the holders of the Preferred Stock to require the Company to repurchase such holders' shares in cash in an amount equal to the initial purchase price plus accrued dividends. The change of control put option was determined to be a derivative liability under ASC 815, Derivatives and Hedging . As of March 31, 2021, the probability of a change of control was determined to be remote, and the fair value of the change of control derivative was determined to be negligible. The Preferred Stock is contingently redeemable upon certain deemed liquidation events, such as a change in control. Because a deemed liquidation event could constitute a redemption event outside of the Company's control, all shares of Preferred Stock have been presented outside of permanent equity in mezzanine equity on the Condensed Consolidated Balance Sheets. The instrument is initially recognized at fair value net of issuance costs. The Company reassesses whether the Preferred Stock is currently redeemable,
Other Accounting Standards Recently Adopted	Effective January 1, 2021, the Company early adopted Accounting Standards Update ("ASU") 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity's Own Equity (Subtopic 815-40). This ASU simplifies accounting for convertible instruments, enhances disclosure requirements related to the terms and features of convertible instruments, and amends the guidance for the derivatives scope exception for contracts settled in an entity's own equity. This ASU removes from GAAP the separation models for (1) convertible debt with a Cash Conversion Feature and (2) convertible instruments with a Beneficial Conversion Feature. Upon adoption of this new ASU, entities will account for a convertible debt instrument wholly as debt, and for convertible preferred stock wholly as preferred stock, unless (1) a convertible instrument contains features that require bifurcation as a derivative under ASC 815, or (2) a convertible debt instrument was issued at a substantial premium. As a result of the adoption, no embedded features were identified requiring bifurcation under the new model, other than the change of control redemption feature. The Company adopted the standard using the modified retrospective approach. The standard had no impact on the senior secured convertible notes issued by the Company and, as a result, there was no cumulative adjustment recorded upon adoption. In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740), which simplifies the accounting for income taxes primarily by eliminating certain exemptions. The amendments are effective for fiscal years beginning after December 15, 2020, including interim periods within those fiscal years. An entity is permitted to early adopt any removed or modified disclosures upon issuance of the update and to delay adoption of the additional disclosures until their effective date. The Company adopted the new standard effective January 1, 2021, which had no impact on the Condensed Consolidated Financial Statements or related disclosures.
Income Taxes	The Company anticipates the Transactions will trigger limitations on its net operating loss carryforwards under Section 382 of the Internal Revenue Code. As such, the amount of net operating loss carryforwards the Company can use in the future to offset U.S. federal and state taxable income may be limited, resulting in the expiration of a portion of the carryforwards prior to use. Due to the Company's valuation allowance position in the U.S., the required revaluation of its deferred tax assets related to these limited U.S. federal and state net operating loss carryforwards did not have a material impact on the Condensed Consolidated Financial Statements or related disclosures.
Loss Per Share	The Company uses the two-class method to calculate loss per share. The two-class method is an earnings allocation formula that treats a participating security as having rights to earnings that otherwise would have been available to common shareholders. Under the two-class method, earnings for the period are allocated between common shareholders and participating security holders based on their respective rights to receive dividends as if all undistributed book earnings for the period were distributed. Basic loss per share is computed by dividing net income attributable to only the common shareholders by the weighted-average number of common shares outstanding for the period. Diluted loss per share includes the impact of share-based compensation to the extent the effect is dilutive.
Impairment of Right-of-use ("ROU") and Long-lived Assets	In the three months ended March 31, 2020, the Company concluded the carrying value of certain facility lease ROU and other long-lived assets may not be recoverable. In its assessment, the Company considered changes in the real estate market related to the COVID-19 pandemic, that led to an increase in the estimated marketing time, and a reduction of expected receipts, for properties on the market for sublease. The Company performed a quantitative asset impairment test using a discounted cash flow model. Certain ROU and related leasehold improvements failed the asset impairment test; and as a result the Company recorded a $4.7 million non-cash impairment charge. Although the Company believes that the carrying values of its long-lived assets are appropriately stated as of March 31, 2021, future changes in strategy or market conditions, significant technological developments or significant changes in legal or regulatory factors could significantly impact these judgments and require adjustments to recorded asset balances.
Allowance for Doubtful Accounts	The Company generally grants uncollateralized credit terms to its customers and maintains an allowance for doubtful accounts to reserve for uncollectible receivables. Allowances are based on management's judgment, which considers historical collection experience adjusted for current conditions or expected future conditions based on reasonable and supportable forecasts, a specific review of all significant outstanding receivables, an assessment of company-specific credit conditions and general economic conditions.
Fair Value Measurements	The fair value of the Company's warrants liability is estimated using an option pricing model. The primary sensitivity in the valuation of the warrants liability is driven by the Common Stock price at the measurement date and the estimated volatility of the Common Stock over the remaining term.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2021
Accounting Policies [Abstract]
Schedule of Other (Expense) Income, Net	Three Months Ended March 31, (In thousands) 2021 2020 Change in fair value of financing derivatives $ 1,800 $ 2,387 Change in fair value of warrants liability (10,001) 4,651 Other (73) 156 Total other (expense) income, net $ (8,274) $ 7,194
Schedule of Common Stock Equivalents for Securities Outstanding Excluded from Earnings Per Share Calculations	The following is a summary of the Common Stock equivalents for the securities outstanding during the respective periods that have been excluded from the computation of diluted net loss per common share, as their effect would be anti-dilutive: Three Months Ended March 31, 2021 2020 Preferred stock 19,472,807 — Warrants 5,457,026 7,308,409 Senior secured convertible notes 4,981,309 6,519,655 Stock options, restricted stock units and deferred stock units 3,614,221 3,158,550 Total 33,525,363 16,986,614
Schedule of the Allowance for Doubtful Accounts	The table below summarizes the change in balance of the allowance for doubtful accounts: Three months ended March 31, (In thousands) 2021 2020 Beginning Balance $ (2,757) $ (1,919) Bad debt benefit (expense) 30 (492) Recoveries (77) (44) Write-offs 1,093 308 Ending Balance $ (1,711) $ (2,147)

Revenue Recognition (Tables)

Revenue Recognition (Tables)	3 Months Ended
	Mar. 31, 2021
Revenue from Contract with Customer [Abstract]
Schedule of Disaggregation of Revenue	The following table presents the Company's revenue disaggregated by solution group, geographical market and timing of transfer of products and services. The Company has one reportable segment in accordance with ASC 280, Segment Reporting ; as such, the disaggregation of revenue below reconciles directly to its unique reportable segment. Three Months Ended March 31, (In thousands) 2021 2020 By solution group : Ratings and Planning (1) $ 65,806 $ 63,521 Analytics and Optimization (1) 17,701 15,501 Movies Reporting and Analytics 6,823 10,506 Total $ 90,330 $ 89,528 By geographical market : United States $ 77,774 $ 77,146 Europe 8,271 7,483 Canada 1,744 1,562 Latin America 1,576 2,020 Other 965 1,317 Total $ 90,330 $ 89,528 By timing of revenue recognition : Products and services transferred over time $ 68,116 $ 71,917 Products and services transferred at a point in time 22,214 17,611 Total $ 90,330 $ 89,528 (1) In the second quarter of 2020, the Company began classifying revenue from certain new and extended custom agreements for services that utilize its syndicated data set, previously classified under Analytics and Optimization, as Ratings and Planning. The impact was not material to either solution group.
Schedule of Contract Balances	The following table provides information about receivables, contract assets, contract costs, contract liabilities and customer advances from contracts with customers: As of As of (In thousands) March 31, 2021 December 31, 2020 Accounts receivable, net $ 61,540 $ 69,379 Current and non-current contract assets 5,070 4,037 Current and non-current contract costs 127 430 Current contract liabilities 54,472 58,529 Current customer advances 14,567 12,477 Non-current contract liabilities 3,936 4,156 Significant changes in the contract assets and the contract liabilities balances are as follows: Contract Liabilities (Current) Three months ended March 31, (In thousands) 2021 2020 Revenue recognized that was included in the opening contract liabilities balance $ (31,891) $ (33,315) Cash received or amounts billed in advance and not recognized as revenue 30,844 37,116

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2021
Fair Value Disclosures [Abstract]
Schedule of Financial Instruments Measured at Fair Value	The Company's financial instruments measured at fair value in the accompanying Condensed Consolidated Balance Sheets on a recurring basis consist of the following: As of As of March 31, 2021 December 31, 2020 (In thousands) Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Assets: Money market funds (1) $ 6,928 $ — $ — $ 6,928 $ 11,928 $ — $ — $ 11,928 Liabilities: Warrants issued: (2) Series A $ — $ — $ 12,832 $ 12,832 $ — $ — $ 2,831 $ 2,831 Financing derivatives: no hedging designation (3) Interest rate reset — — — — — — 11,300 11,300 Secured term note: (4) Interest make-whole derivative — — — — — — 871 871 Total liabilities $ — $ — $ 12,832 $ 12,832 $ — $ — $ 15,002 $ 15,002 (1) Level 1 cash equivalents are invested in money market funds that are intended to maintain a stable net asset value of $1.00 per share by investing in liquid, high quality U.S. dollar-denominated money market instruments with maturities less than three months. (2) The fair values of the warrants are derived from techniques which utilize inputs, certain of which are significant and unobservable, that result in classification as Level 3 fair value measurements. (3) The fair values of the financing derivatives are derived from techniques which utilize inputs, certain of which are significant and unobservable, that result in classification as Level 3 fair value measurements. Extinguishment of the Notes on March 10, 2021 resulted in derecognition of the interest rate reset derivative liability. (4) The fair value of the embedded derivative within the Secured Term Note is derived from techniques which utilize inputs, certain of which are significant and unobservable, that result in classification as Level 3 fair value measurements. Extinguishment of the Secured Term Note on March 10, 2021 resulted in settlement of the interest make-whole derivative liability.
Schedule of Changes in Level 3 Fair Valued Instruments	The following tables present the changes in the Company's recurring Level 3 fair valued instruments for the three months ended March 31, 2021 and 2020, respectively: (In thousands) Interest Make-whole Derivative Liability Financing Derivative Liabilities Warrants Liability Balance as of December 31, 2020 $ 871 $ 11,300 $ 2,831 Total losses (gains) included in other (expense) income, net (1) 150 (1,800) 10,001 Settlement or derecognition upon extinguishment of host debt (2) (1,021) (9,500) — Balance as of March 31, 2021 $ — $ — $ 12,832 (1) All losses and gains were recorded in other (expense) income, net in the Condensed Consolidated Statements of Operations and Comprehensive Loss. (2) Refer to Fo otnote 4 , Debt for additional information on the extinguishment of the Notes and Secured Term Notes. (In thousands) Financing Derivative Liabilities Warrants Liability Balance as of December 31, 2019 $ 21,587 $ 7,725 Total gains included in other (expense) income, net (1) (2,387) (4,651) Balance as of March 31, 2020 $ 19,200 $ 3,074 (1) Represents $1.9 million gain due to change in fair value of interest rate reset derivative liability, $0.5 million gain due to change in fair value of qualifying change of control redemption derivative liability, $4.4 million gain due to change in fair value of the Series A Warrant and $0.2 million gain due to change in fair value of the Series B-2 Warrant. All gains were recorded in other (expense) income, net in the Condensed Consolidated Statements of Operations and Comprehensive Loss.
Schedule of Valuation Techniques and Significant Unobservable Inputs For Level 3 Liabilities	The following table displays the valuation technique and the significant inputs, certain of which are unobservable, for the Company's Level 3 liabilities that existed at the end of the current reporting period, as of March 31, 2021 and December 31, 2020 that are measured at fair value on a recurring basis: Fair Value Measurements Significant Valuation Technique Significant Valuation Inputs March 31, 2021 December 31, 2020 Warrants liability Option pricing model Stock price $3.66 $2.49 Exercise price $2.47 $12.00 Volatility 85.0% 80.0% Term 3.24 years 3.49 years Risk-free rate 0.4% 0.2%

Accrued Expenses (Tables)

Accrued Expenses (Tables)	3 Months Ended
	Mar. 31, 2021
Other Liabilities Disclosure [Abstract]
Schedule of Accrued Expenses	As of As of (In thousands) March 31, 2021 December 31, 2020 Accrued data costs $ 21,707 $ 19,375 Payroll and payroll-related 16,244 14,653 Professional fees 3,169 4,848 Other 9,554 9,504 Total accrued expenses $ 50,674 $ 48,380

Related Party Transactions (Tab

Related Party Transactions (Tables)	3 Months Ended
	Mar. 31, 2021
Related Party Transactions [Abstract]
Schedule of Related Party Transactions	The Company's results from transactions with WPP, as reflected in the Condensed Consolidated Statements of Operations and Comprehensive Loss, are detailed below: Three months ended March 31, (In thousands) 2021 2020 Revenues $ 3,326 $ 3,211 Cost of revenues 4,677 2,375 The Company has the following balances related to transactions with WPP, as reflected in the Condensed Consolidated Balance Sheets: As of As of (In thousands) March 31, 2021 December 31, 2020 Assets Accounts receivable, net $ 1,382 $ 4,045 Prepaid expenses and other current assets 811 1,496 Liabilities Accounts payable $ 2,834 $ 2,817 Accrued expenses 2,031 835 Contract liabilities 2,122 3,538 Other non-current liabilities 1,336 — The Company's results from transactions with Charter and its affiliates, as reflected in the Condensed Consolidated Statements of Operations and Comprehensive Loss, are detailed below: (In thousands) Three months ended March 31, 2021 Revenues $ 339 Cost of revenues 5,145 The Company has the following balances related to transactions with Charter and its affiliates, as reflected in the Condensed Consolidated Balance Sheet: As of (In thousands) March 31, 2021 Assets Accounts receivable, net $ 476 Liabilities Accounts payable $ 4,449 Accrued expenses 4,317 Other non-current liabilities 847

Organization (Details)

Organization (Details) $ in Millions	Mar. 10, 2021USD ($)shares	Oct. 14, 2019shares	Jun. 26, 2019USD ($)series_of_warrantshares	Mar. 31, 2021segment	Jan. 30, 2019	Dec. 31, 2018
Class of Stock [Line Items]
Number of operating segments | segment				1
Common Stock warrants exercised (in shares)		2,728,513
Dividend rate	7.50%
Private Placement
Class of Stock [Line Items]
Sale of stock (in shares)			2,728,513
Gross proceeds from sale | $			$ 20
Number of series of warrants | series_of_warrant			4
Charter | Private Placement | Convertible Preferred Stock
Class of Stock [Line Items]
Sale of stock (in shares)	27,509,203
Gross proceeds from sale | $	$ 68
Qurate | Private Placement | Convertible Preferred Stock
Class of Stock [Line Items]
Sale of stock (in shares)	27,509,203
Gross proceeds from sale | $	$ 68
Pine | Private Placement | Convertible Preferred Stock
Class of Stock [Line Items]
Sale of stock (in shares)	27,509,203
Gross proceeds from sale | $	$ 68
Starboard Value LP | Initial Notes | Convertible senior notes
Class of Stock [Line Items]
Stated interest rate					12.00%	6.00%

Summary of Significant Accoun_4

Summary of Significant Accounting Policies (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands		Jul. 01, 2021	Mar. 10, 2021	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Temporary Equity [Line Items]
Loss on extinguishment of debt				$ 9,629	$ 0
Convertible redeemable preferred stock issued (in shares)			82,527,609	82,527,609
Gross proceeds			$ 204,000
Convertible redeemable preferred stock, par value (in dollars per share)			$ 0.001	$ 0.001		$ 0.001
Dividend rate			7.50%
Net proceeds			$ 188,200	$ 188,183
Convertible redeemable preferred stock dividends accrued but not yet paid	[1]			$ 935	0
Impairment of right-of-use and long-lived assets					$ 4,700
Forecast
Temporary Equity [Line Items]
Dividend rate		9.50%
[1]	(1) Transactions with related parties are included in the line items above (refer to Footnote 8 , Related Party Transactions, of the Notes to Condensed Consolidated Financial Statements for additional information).

Summary of Significant Accoun_5

Summary of Significant Accounting Policies (Other (Expense) Income, Net) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Accounting Policies [Abstract]
Change in fair value of financing derivatives	$ 1,800	$ 2,387
Change in fair value of warrants liability	(10,001)	4,651
Other	(73)	156
Total other (expense) income, net	$ (8,274)	$ 7,194

Summary of Significant Accoun_6

Summary of Significant Accounting Policies (Securities Excluded From Earnings Per Share Calculations) (Details) - shares	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Accounting Policies [Abstract]
Preferred stock	19,472,807	0
Warrants	5,457,026	7,308,409
Senior secured convertible notes	4,981,309	6,519,655
Stock options, restricted stock units and deferred stock units	3,614,221	3,158,550
Total	33,525,363	16,986,614

Summary of Significant Accoun_7

Summary of Significant Accounting Policies (Allowance for Doubtful Accounts) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for doubtful accounts, beginning balance	$ (2,757)	$ (1,919)
Bad debt benefit (expense)	30	(492)
Recoveries	(77)	(44)
Write-offs	1,093	308
Allowance for doubtful accounts, ending balance	$ (1,711)	$ (2,147)

Revenue Recognition (Narrative)

Revenue Recognition (Narrative) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)segment	Mar. 31, 2020USD ($)	Dec. 31, 2020USD ($)
Revenue from Contract with Customer [Abstract]
Number of reportable segments | segment	1
Capitalized contract costs	$ 127		$ 430
Amortization of contract costs	$ 2,600	$ 300

Revenue Recognition (Disaggrega

Revenue Recognition (Disaggregation of Revenue) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Total	[1]	$ 90,330	$ 89,528
Products and services transferred over time
Disaggregation of Revenue [Line Items]
Total		68,116	71,917
Products and services transferred at a point in time
Disaggregation of Revenue [Line Items]
Total		22,214	17,611
Ratings and Planning
Disaggregation of Revenue [Line Items]
Total		65,806	63,521
Analytics and Optimization
Disaggregation of Revenue [Line Items]
Total		17,701	15,501
Movies Reporting and Analytics
Disaggregation of Revenue [Line Items]
Total		6,823	10,506
Reportable Geographical Components | United States
Disaggregation of Revenue [Line Items]
Total		77,774	77,146
Reportable Geographical Components | Europe
Disaggregation of Revenue [Line Items]
Total		8,271	7,483
Reportable Geographical Components | Canada
Disaggregation of Revenue [Line Items]
Total		1,744	1,562
Reportable Geographical Components | Latin America
Disaggregation of Revenue [Line Items]
Total		1,576	2,020
Reportable Geographical Components | Other
Disaggregation of Revenue [Line Items]
Total		$ 965	$ 1,317
[1]	(1) Transactions with related parties are included in the line items above (refer to Footnote 8 , Related Party Transactions, of the Notes to Condensed Consolidated Financial Statements for additional information).

Revenue Recognition (Contract B

Revenue Recognition (Contract Balances) (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Revenue from Contract with Customer [Abstract]
Accounts receivable, net	$ 61,540	$ 69,379
Current and non-current contract assets	5,070	4,037
Current and non-current contract costs	127	430
Current contract liabilities	54,472	58,529
Current customer advances	14,567	12,477
Non-current contract liabilities	$ 3,936	$ 4,156

Revenue Recognition (Changes in

Revenue Recognition (Changes in Contract Balances) (Details) - Contract Liabilities (Current) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Revenue recognized that was included in the opening contract liabilities balance	$ (31,891)	$ (33,315)
Cash received or amounts billed in advance and not recognized as revenue	$ 30,844	$ 37,116

Revenue Recognition (Transactio

Revenue Recognition (Transaction Price Allocated to the Remaining Performance Obligations) (Details) $ in Millions	Mar. 31, 2021USD ($)
Revenue from Contract with Customer [Abstract]
Revenue, remaining performance obligation	$ 235
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, percentage	46.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period	9 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, percentage	31.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, percentage	11.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year

Debt (Narrative) (Details)

Debt (Narrative) (Details)	Mar. 10, 2021USD ($)shares	Mar. 09, 2021$ / shares	Jan. 25, 2021USD ($)shares	Jun. 30, 2019USD ($)	Mar. 10, 2021USD ($)shares	Mar. 31, 2021USD ($)$ / shares	Mar. 31, 2020USD ($)	Dec. 31, 2018USD ($)$ / sharesshares	Dec. 31, 2020USD ($)$ / shares	Dec. 31, 2019USD ($)	Apr. 03, 2019shares	Jan. 30, 2019
Schedule of Capitalization, Long-term Debt [Line Items]
Common stock, par value (in dollars per share) | $ / shares						$ 0.001		$ 0.001	$ 0.001
Interest accrued paid						$ 10,812,000	$ 0
Gross proceeds	$ 204,000,000
Debt conversion amount						9,608,000	0
Loss on extinguishment of debt						9,629,000	$ 0
Interest rate reset | Recurring | No hedge designation
Schedule of Capitalization, Long-term Debt [Line Items]
Fair value of derivative	9,500,000				$ 9,500,000	0			$ 11,300,000
Derecognition of derivative liability	$ 9,500,000				$ 9,500,000
Interest rate reset | Recurring | No hedge designation | Discount rate
Schedule of Capitalization, Long-term Debt [Line Items]
Derivative liability, measurement input	0.200				0.200
Wells Fargo Bank, N.A. | Letter of credit
Schedule of Capitalization, Long-term Debt [Line Items]
Letters of credit outstanding						3,300,000
Convertible senior notes | Starboard Value LP | Initial Notes
Schedule of Capitalization, Long-term Debt [Line Items]
Face value of note								$ 204,000,000
Stated interest rate								6.00%				12.00%
Cash proceeds								$ 100,000,000
Converted shares issued (in shares) | shares	3,150,000							4,000,000
Number of shares callable by warrants (in shares) | shares											323,448
Interest accrued paid			$ 6,100,000		$ 4,700,000
Issuance of PIK Interest Shares (in shares) | shares			2,802,454		1,363,327
Debt conversion amount	$ 9,600,000
Closing price (in dollars per share) | $ / shares		$ 3.05
Loss on extinguishment of debt						9,300,000
Write-off of unamortized deferred financing costs and issuance discount						9,200,000
Secured Term Note | Secured Term Note
Schedule of Capitalization, Long-term Debt [Line Items]
Face value of note										$ 13,000,000
Stated interest rate										9.75%
Loss on extinguishment of debt						300,000
Repayments of principal	13,000,000
Settlement of interest make-whole redemption	$ 1,000,000
Failed Sale Leaseback Transaction
Schedule of Capitalization, Long-term Debt [Line Items]
Sale leaseback transaction, proceeds from the failed sale of the assets				$ 4,300,000
Sale leaseback transaction, term of contract				24 months
Sale leaseback transaction, total consideration				$ 4,800,000
Current financing lease liability						1,200,000
Remaining future minimum payment						$ 900,000

Convertible Redeemable Prefer_2

Convertible Redeemable Preferred Stock and Stockholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	Mar. 10, 2021	Oct. 14, 2019	Jun. 26, 2019	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Convertible redeemable preferred stock issued (in shares)	82,527,609			82,527,609
Gross proceeds	$ 204,000
Convertible redeemable preferred stock, par value (in dollars per share)	$ 0.001			$ 0.001		$ 0.001
Net proceeds	$ 188,200			$ 188,183
Conversion ratio (in shares)				1.005
Mandatory conversion period (in years)	5 years
Mandatory conversion, percentage of common stock original purchase price	140.00%
Mandatory conversion, pro rata share of aggregate dividends paid	$ 100,000
Shares converted (in shares)				0
Voting class, conversion ratio	0.98091271
Cap of common stock voting class (as a percent)	16.66%
Dividend rate	7.50%
Common Stock warrants exercised (in shares)		2,728,513
Warrants liability				$ 12,832		$ 2,831
Change in fair value of warrants liability				10,001	$ (4,651)
Series A Warrant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase in number of shares issuable (in shares)		2,728,513
Warrants liability				12,800
Change in fair value of warrants liability due to impact of the anti-dilution adjustment				6,900
Change in fair value of warrants liability				$ 10,000
Private Placement
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Sale of stock (in shares)			2,728,513
Sale price per share (in dollars per share)			$ 7.33
Gross proceeds from sale			$ 20,000
Maximum common stock ownership percentage			4.99%
Maximum common stock ownership percentage if sixty days notice given			9.99%
Ownership percentage threshold triggering warrants to be settled in cash			20.00%
Private Placement | Series A Warrant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercisable period (in years)			5 years
Number of shares callable by warrants (in shares)			5,457,026
Price of warrants (in dollars per share)	$ 2.4719		$ 12

Fair Value Measurements (Assets

Fair Value Measurements (Assets and Liabilities Measured on a Recurring and Non-recurring Basis) (Details) - USD ($) $ / shares in Units, $ in Thousands	Mar. 31, 2021	Mar. 10, 2021	Dec. 31, 2020
Liabilities:
Warrants Issued	$ 12,832		$ 2,831
Series A
Liabilities:
Warrants Issued	$ 12,800
Level 1
Assets:
Money market funds, stable net asset value per share (in dollars per share)	$ 1
Recurring
Liabilities:
Total liabilities	$ 12,832		15,002
Recurring | Interest make-whole derivative
Liabilities:
Secured term note	0		871
Recurring | No hedge designation | Interest rate reset
Liabilities:
Financing derivatives	0	$ 9,500	11,300
Recurring | Series A
Liabilities:
Warrants Issued	12,832		2,831
Recurring | Money market funds
Assets:
Money market funds	6,928		11,928
Recurring | Level 1
Liabilities:
Total liabilities	0		0
Recurring | Level 1 | Interest make-whole derivative
Liabilities:
Secured term note	0		0
Recurring | Level 1 | No hedge designation | Interest rate reset
Liabilities:
Financing derivatives	0		0
Recurring | Level 1 | Series A
Liabilities:
Warrants Issued	0		0
Recurring | Level 1 | Money market funds
Assets:
Money market funds	6,928		11,928
Recurring | Level 2
Liabilities:
Total liabilities	0		0
Recurring | Level 2 | Interest make-whole derivative
Liabilities:
Secured term note	0		0
Recurring | Level 2 | No hedge designation | Interest rate reset
Liabilities:
Financing derivatives	0		0
Recurring | Level 2 | Series A
Liabilities:
Warrants Issued	0		0
Recurring | Level 2 | Money market funds
Assets:
Money market funds	0		0
Recurring | Level 3
Liabilities:
Total liabilities	12,832		15,002
Recurring | Level 3 | Interest make-whole derivative
Liabilities:
Secured term note	0		871
Recurring | Level 3 | No hedge designation | Interest rate reset
Liabilities:
Financing derivatives	0		11,300
Recurring | Level 3 | Series A
Liabilities:
Warrants Issued	12,832		2,831
Recurring | Level 3 | Money market funds
Assets:
Money market funds	$ 0		$ 0

Fair Value Measurements (Reconc

Fair Value Measurements (Reconciliation of Level 3 Fair Valued Instruments) (Details) - Level 3 - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Interest rate reset
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total losses (gains) included in other (expense) income, net		$ (1,900)
Qualifying change of control redemption
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total losses (gains) included in other (expense) income, net		(500)
Interest Make-whole Derivative Liability
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 871
Total losses (gains) included in other (expense) income, net	150
Settlement or derecognition upon extinguishment of host debt	(1,021)
Ending balance	0
Financing Derivative Liabilities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	11,300	21,587
Total losses (gains) included in other (expense) income, net	(1,800)	(2,387)
Settlement or derecognition upon extinguishment of host debt	(9,500)
Ending balance	0	19,200
Warrants Liability
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	2,831	7,725
Total losses (gains) included in other (expense) income, net	10,001	(4,651)
Settlement or derecognition upon extinguishment of host debt	0
Ending balance	$ 12,832	3,074
Warrants Liability | Series A Warrant
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total losses (gains) included in other (expense) income, net		(4,400)
Warrants Liability | Series B-2 Warrant
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total losses (gains) included in other (expense) income, net		$ (200)

Fair Value Measurements (Valuat

Fair Value Measurements (Valuation Techniques of Level 3 Liabilities) (Details) - Warrants Liability - Level 3 - Option pricing model	Mar. 31, 2021yr	Dec. 31, 2020yr
Stock price
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants liability, measurement input	3.66	2.49
Exercise price
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants liability, measurement input	2.47	12
Volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants liability, measurement input	0.850	0.800
Term
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants liability, measurement input	3.24	3.49
Risk-free rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants liability, measurement input	0.004	0.002

Accrued Expenses (Details)

Accrued Expenses (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Other Liabilities Disclosure [Abstract]
Accrued data costs	$ 21,707	$ 19,375
Payroll and payroll-related	16,244	14,653
Professional fees	3,169	4,848
Other	9,554	9,504
Total accrued expenses	$ 50,674	$ 48,380

Related Party Transactions (Nar

Related Party Transactions (Narrative) (Details)		Mar. 10, 2021USD ($)shares	Jan. 16, 2018	Mar. 31, 2021USD ($)directorshares	Mar. 31, 2020USD ($)	Dec. 31, 2018shares	Dec. 31, 2020shares
Related Party Transaction [Line Items]
Common stock, shares outstanding (in shares) | shares				80,686,147			72,938,546
Convertible redeemable preferred stock, shares outstanding (in shares) | shares				82,527,609			0
Convertible redeemable preferred stock dividends accrued but not yet paid	[1]			$ 935,000	$ 0
Conversion shares issued as extinguishment cost on senior secured convertible notes (related party)				$ 9,608,000	0
Starboard Value LP | Initial Notes | Convertible senior notes
Related Party Transaction [Line Items]
Converted shares issued (in shares) | shares		3,150,000				4,000,000
Conversion shares issued as extinguishment cost on senior secured convertible notes (related party)		$ 9,600,000
Investor | WPP
Related Party Transaction [Line Items]
Common stock, shares outstanding (in shares) | shares				11,319,363
Ownership percentage of common stock outstanding shares				14.00%
Revenues				$ 3,326,000	3,211,000
Investor | Charter
Related Party Transaction [Line Items]
Percentage of interest held				33.30%
Number of directors designated to the Company's Board | director				2
Convertible redeemable preferred stock, shares outstanding (in shares) | shares				27,509,203
Revenues				$ 339,000
Investor | Qurate
Related Party Transaction [Line Items]
Percentage of interest held				33.30%
Number of directors designated to the Company's Board | director				2
Convertible redeemable preferred stock, shares outstanding (in shares) | shares				27,509,203
Revenues				$ 200,000
Investor | Pine
Related Party Transaction [Line Items]
Percentage of interest held				33.30%
Number of directors designated to the Company's Board | director				2
Convertible redeemable preferred stock, shares outstanding (in shares) | shares				27,509,203
Outstanding balances related to transactions				$ 0
Investor | Starboard Value LP
Related Party Transaction [Line Items]
Outstanding balances related to transactions				0
Interest expense				$ 6,600,000	$ 8,200,000
Affiliated entity | Lightspeed
Related Party Transaction [Line Items]
Purchase commitment term (in years)				5 years
Annual purchase obligation				$ 5,400,000
Affiliated entity | Charter Operating
Related Party Transaction [Line Items]
Purchase commitment term (in years)		10 years
Affiliated entity | Charter Operating | License fees | Minimum
Related Party Transaction [Line Items]
Payment obligation for license fees		$ 10,000,000
Affiliated entity | Charter Operating | License fees | Maximum
Related Party Transaction [Line Items]
Payment obligation for license fees		$ 32,300,000
Beneficial owner | Starboard Value LP
Related Party Transaction [Line Items]
Ownership percentage of common stock outstanding shares			5.00%
Number of directors designated to the Company's Board | director				0
[1]	(1) Transactions with related parties are included in the line items above (refer to Footnote 8 , Related Party Transactions, of the Notes to Condensed Consolidated Financial Statements for additional information).

Related Party Transactions (Tra

Related Party Transactions (Transaction with Related Parties) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Related Party Transaction [Line Items]
Prepaid expenses and other current assets	$ 12,048		$ 16,910
Accrued expenses	50,674		48,380
Other non-current liabilities	12,379		19,600
Investor
Related Party Transaction [Line Items]
Accounts receivable, net	1,868		4,045
Prepaid expenses and other current assets	811		1,496
Accounts payable	7,296		2,817
Accrued expenses	6,348		835
WPP | Investor
Related Party Transaction [Line Items]
Revenues	3,326	$ 3,211
Accounts receivable, net	1,382		4,045
Prepaid expenses and other current assets	811		1,496
Accounts payable	2,834		2,817
Accrued expenses	2,031		835
Contract liabilities	2,122		3,538
Other non-current liabilities	1,336		$ 0
WPP | Investor | Cost of revenues
Related Party Transaction [Line Items]
Expenses	4,677	$ 2,375
Charter | Investor
Related Party Transaction [Line Items]
Revenues	339
Accounts receivable, net	476
Accounts payable	4,449
Accrued expenses	4,317
Other non-current liabilities	847
Charter | Investor | Cost of revenues
Related Party Transaction [Line Items]
Expenses	$ 5,145

Commitments and Contingencies (

Commitments and Contingencies (Narrative) (Details) $ in Millions	Feb. 26, 2020USD ($)
Settled litigation | Privacy Class Action Litigation
Loss Contingencies [Line Items]
Loss contingency, alleged damages amount (in excess of)	$ 5

Subsequent Events (Details)

Subsequent Events (Details) - Subsequent event - Line of credit	May 05, 2021USD ($)
Revolving credit facility
Subsequent Event [Line Items]
Maturity period (in years)	3 years
Maximum borrowing capacity	$ 25,000,000
Borrowings outstanding	0
Letter of credit
Subsequent Event [Line Items]
Maximum borrowing capacity	5,000,000
Borrowings outstanding	$ 0