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Nth Party, Ltd. [Member] Nth Party, Ltd. 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Amortization of Intangible Assets Intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Estimated Useful Life Acquired Finite-lived Intangible Assets, Weighted Average Useful Life RSAs and RSUs Restricted Stock Units And Restricted Stock Awards [Member] Restricted Stock Units And Restricted Stock Awards [Member] Variable lease cost Variable Lease, Cost Weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent Total shares excluded from net loss per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Technology and development Research and Development Expense [Member] Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value [Abstract] Number of projects Number Of Projects Number Of Projects Subsequent Events [Abstract] 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[Member] Merger, Acquisition, And Restructuring Charges Fiscal Year Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Options to purchase common stock Equity Option [Member] Credit Facility [Domain] Credit Facility [Domain] ASSETS Assets [Abstract] Weighted- Average Contractual Life Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] 2024 Long-Term Debt, Maturity, Year Three Exercisable (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Contra seller payable Accounts Payable, Seller Accounts Payable, Seller Long-term debt, term Long-term Debt, Term Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Goodwill, Intangible Assets, and Capitalized Costs Incurred in Cloud Computing Arrangements Goodwill and Intangible Assets Disclosure [Text Block] 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Principal Payments Entity Interactive Data Current Entity Interactive Data Current Available borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Basic (usd per share) Basic net income (loss) per share (in shares) Earnings Per Share, Basic Lease expense Operating Lease, Expense 2025 Lessee, Operating Lease, Liability, to be Paid, Year Three Revenue Revenue from Contract with Customer [Text Block] Sublease income Sublease Income Restricted stock units outstanding and unvested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Restructuring costs, impairments Restructuring Impairment Costs Restructuring Impairment Costs Document Type Document Type 2023 Long-Term Debt, Maturity, Year One Contractual interest expense 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Accounts Receivable, Allowance for Credit Loss, Recovery Thereafter Lessee, Operating Lease, Liability, To Be Paid, Due After Year Four Lessee, Operating Lease, Liability, To Be Paid, Due After Year Four Impairment costs of abandoned technology Non-cash impairments Restructuring Impairments, Settled Without Cash Restructuring Impairments, Settled Without Cash Purchase price Total purchase consideration Business Combination, Consideration Transferred Provision for doubtful accounts Accounts Receivable, Credit Loss Expense (Reversal) Long-term debt, gross Term Loan B Facility Long-term Debt, Gross Senior Secured Revolving Credit Facility Senior Secured Revolving Credit Facility [Member] Senior Secured Revolving Credit Facility Offering period Share-based Compensation Arrangement by Share-based Payment Award, Offering Period Share-based Compensation Arrangement by Share-based Payment Award, Offering Period Fair value of options vested in period Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value Plan Name [Axis] Plan Name [Axis] Net Total Long-term Debt Debt Discount Amortization Of Debt Discounts [Abstract] Amortization Of Debt Discounts Quoted Prices in Active Markets for Identical Assets (Level 1) Fair Value, Inputs, Level 1 [Member] INVESTING ACTIVITIES: Net Cash Provided by (Used in) Investing Activities [Abstract] Unrealized foreign currency (gains) losses, net Foreign Currency Transaction Gain (Loss), Unrealized Document Transition Report Document Transition Report Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Concentration of Basis of Revenue Recognition Concentration of Basis of Revenue Recognition [Member] Concentration of Basis of Revenue Recognition Fiscal Year Lessee, Operating Lease, Liability, Payment, Due [Abstract] Working capital adjustment Business Combination, Consideration Transferred, Working Capital Adjustments Business Combination, Consideration Transferred, Working Capital Adjustments Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Payment for capped call options Payments For Capped Call Options Payments For Capped Call Options TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity Tranche one Share-based Payment Arrangement, Tranche One [Member] Exercised (usd per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Non-compete agreements Noncompete Agreements [Member] Restricted cash included in other assets, non-current Restricted Cash Additional paid-in capital Additional Paid in Capital Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity [Abstract] Restructuring Reserve [Roll Forward] Restructuring Reserve [Roll Forward] Accounts payable and accrued expenses Total Accounts Payable and Accrued Liabilities, Current Net Loss Per Share Earnings Per Share [Text Block] Purchase of treasury stock Purchase of treasury stock Treasury Stock, Value, Acquired, Cost Method Treasury stock acquired, average cost per share (in usd per share) Treasury Stock Acquired, Average Cost Per Share Thereafter Long-Term Debt, Maturity, after Year Five Non-cash stock-based compensation (double-trigger acceleration and severance) Non-cash stock-based compensation Restructuring Reserve And Merger Related Costs, Settled without Cash Restructuring Reserve And Merger Related Costs, Settled without Cash Aggregate annual payments of principle balance (percent) Debt Instrument, Annual Principal Payment, Percentage Debt Instrument, Annual Principal Payment, Percentage 2026 Finite-Lived Intangible Asset, Expected Amortization, Year Four Exercise of common stock options Stock Issued During Period, Value, Stock Options Exercised Minimum Minimum [Member] Basis Of Revenue Recognition [Domain] Basis Of Revenue Recognition [Domain] Basis Of Revenue Recognition [Domain] SpotX and Telaria SpotX and Telaria [Member] SpotX and Telaria Restricted cash Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Restricted Cash Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Restricted Cash Performance shares, Granted August 2021 Performance shares, Granted August 2021 [Member] Performance shares, Granted August 2021 2024 Lessee, Operating Lease, Liability, to be Paid, Year Two EFFECT OF EXCHANGE RATE CHANGES ON CASH, CASH EQUIVALENTS AND RESTRICTED CASH Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Balance Sheet Location [Domain] Balance Sheet Location [Domain] Conversion ratio Debt Instrument, Convertible, Conversion Ratio Total Unamortized debt issuance costs Debt Issuance Costs, Net Beginning balance (in shares) Ending balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Unvested And Vested But Deferred, Number Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Unvested And Vested But Deferred, Number Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Make-whole fundamental change period Debt Instrument, Redemption, Make-Whole Fundamental Change Period Debt Instrument, Redemption, Make-Whole Fundamental Change Period Restructuring costs, personnel related and non-cash stock-based compensation Restructuring Charges And Merger Related Costs, Settled Without Cash Restructuring Charges And Merger Related Costs, Settled Without Cash SpotX and SpringServe SpotX, Inc And ServeMotion, Inc [Member] SpotX, Inc And ServeMotion, Inc Trading Symbol Trading Symbol Carbon (AI) Limited and Mode Technologies, Inc. Carbon (AI) Limited and Mode Technologies, Inc. [Member] Carbon (AI) Limited and Mode Technologies, Inc. Current liabilities: Liabilities, Current [Abstract] Capitalized internal use software development costs Payments to Develop Software Capped calls, transaction costs Debt Instruments, Capped Calls, Transaction Costs Debt Instruments, Capped Calls, Transaction Costs 2025 Long-Term Debt, Maturity, Year Four General and administrative General and Administrative Expense Mergers and acquisitions, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Debt Debt Disclosure [Text Block] Exercisable (usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Stock-Based Compensation Share-based Payment Arrangement [Text Block] Significant Unobservable Inputs  (Level 3) Fair Value, Inputs, Level 3 [Member] Company Office, Toronto CA Company Office, Toronto CA [Member] Company Office, Toronto CA Accounting Policies [Abstract] Accounting Policies [Abstract] Debt issuance costs included in accrued expenses and other liabilities Debt Issuance Costs Incurred During Noncash or Partial Noncash Transaction Outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Prior investment Payments to Acquire Interest in Subsidiaries and Affiliates Letters of credit outstanding, amount Letters of Credit Outstanding, Amount Lease liabilities—total (discounted) Operating Lease, Liability Foreign exchange loss, net Foreign Currency Transaction Gain (Loss), before Tax Interest Income and Interest Expense Disclosure Interest Income and Interest Expense Disclosure [Table Text Block] Common stock, $0.00001 par value; 500,000 shares authorized at March 31, 2022 and December 31, 2021; 132,052 and 132,553 shares issued at March 31, 2022 and December 31, 2021, respectively, and 132,051 and 132,204 shares outstanding at March 31, 2022 and December 31, 2021, respectively Common Stock, Value, Issued Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Total other (income) expense, net Nonoperating Income (Expense) Unrecognized employee stock-based compensation, period for recognition Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Restricted stock units outstanding and unvested (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Basis of Presentation and Summary of Significant Accounting Policies Basis of Accounting, Policy [Policy Text Block] Unvested performance stock units Performance Shares Units Performance Shares [Member] Commitments and contingencies (Note 12) Commitments and Contingencies Subsequent Event [Table] Subsequent Event [Table] Lease Obligations Lessee, Operating Leases [Text Block] Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Net proceeds Proceeds from Debt, Net of Issuance Costs Cash consideration, elected increase, percent Payments To Acquire Businesses, Gross, Elected Increase, Percentage Payments To Acquire Businesses, Gross, Elected Increase, Percentage Remaining 2022 Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Business Combinations Business Combination Disclosure [Text Block] Payment for debt issuance costs Payments of Debt Issuance Costs 2025 Amortization Of Debt Issuance Costs, Year Three Amortization Of Debt Issuance Costs, Year Three Other Commitments [Table] Other Commitments [Table] Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Product Concentration Risk Product Concentration Risk [Member] Accrued merger, acquisition, and restructuring costs Accrued restructuring costs at December 31, 2021 Accrued restructuring costs at March 31, 2022 Restructuring Reserve And Business Combination, Acquisition Related Costs Restructuring Reserve And Business Combination, Acquisition Related Costs Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Document Period End Date Document Period End Date Vested but deferred (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested But Deferred, Number Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested But Deferred, Number Conversion Term (iv) Conversion Term (iv) [Member] Conversion Term (iv) Total expenses Costs and Expenses Pro Forma Net Income (Loss) Business Acquisition, Pro Forma Net Income (Loss) Entity Registrant Name Entity Registrant Name Treasury stock outstanding (in shares) Treasury Stock, Shares Interest expense, net Interest Income (Expense), Net Non-cash lease expense Non-Cash Lease Expense Non-Cash Lease Expense Less: imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Fair value appreciation of SpotX purchase right Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Incremental Revolver Incremental Revolver [Member] Incremental Revolver Internal use software development costs, net Internal Use Software Development Costs, Net The carrying amount of internal use software development costs net of accumulated amortization as of the balance sheet date. Issued in merger (in shares) Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Revenue Revenue Revenue from Contract with Customer, Excluding Assessed Tax Stock Option Share-based Payment Arrangement, Option [Member] SpotX initial cash investment in SpringServe Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value Annual percentage increase Evergreen Annual % Increase Evergreen Annual % Increase Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Common Stock  Common Stock [Member] Variable Rate [Axis] Variable Rate [Axis] Shares issued, elected decrease, percent Business Acquisition, Equity Interest Issued or Issuable, Elected Decrease, Percentage Business Acquisition, Equity Interest Issued or Issuable, Elected Decrease, Percentage Loss from operations Operating Income (Loss) Lease liabilities, current Operating Lease, Liability, Current 2024 Finite-Lived Intangible Asset, Expected Amortization, Year Two Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Convertible Senior Notes Convertible Senior Note [Member] Convertible Senior Note Stock-based compensation Share-based Payment Arrangement, Noncash Expense Variable Rate [Domain] Variable Rate [Domain] Merger, Acquisition, and Restructuring Costs Restructuring and Related Activities Disclosure [Text Block] Additional Paid-In Capital Additional Paid-in Capital [Member] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Amortization Of Debt Issuance Costs, Year Five Amortization Of Debt Issuance Costs, Year Five Amortization Of Debt Issuance Costs, Year Five Technology Technology-Based Intangible Assets [Member] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Repayment of debt Repayments of Debt Performance measurement percentage Share-based Compensation Arrangement By Share-based Payment Award, Performance Measurement, Percentage Share-based Compensation Arrangement By Share-based Payment Award, Performance Measurement, Percentage Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Treasury Stock Treasury Stock [Member] Cash paid for income taxes Income Taxes Paid Debt utilization triggering leverage ratio compliance, percent Line of Credit Facility, Covenant Compliance, Debt Utilization Triggering Leverage Ratio Compliance, Percentage Line of Credit Facility, Covenant Compliance, Debt Utilization Triggering Leverage Ratio Compliance, Percentage Beginning balance (in dollars per share) Ending balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested And Vested But Deferred, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested And Vested But Deferred, Weighted Average Grant Date Fair Value SpotX Acquisition, SpringServe Acquisition, And Telaria Merger SpotX Acquisition, SpringServe Acquisition, And Telaria Merger [Member] SpotX Acquisition, SpringServe Acquisition, And Telaria Merger Other liabilities Increase (Decrease) in Other Operating Liabilities RSUs granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted Retirement of common stock (in shares) Stock Repurchased and Retired During Period, Shares Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Other current liabilities Other Liabilities, Current Maximum Maximum [Member] Share-based Payment Arrangement [Abstract] Share-based Payment Arrangement [Abstract] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] TOTAL LIABILITIES Liabilities Legal Entity [Axis] Legal Entity [Axis] Thereafter Finite-Lived Intangible Asset, Expected Amortization, After Year Four Finite-Lived Intangible Asset, Expected Amortization, After Year Four 2023 Finite-Lived Intangible Asset, Expected Amortization, Year One Award Type [Axis] Award Type [Axis] Granted (usd per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price FINANCING ACTIVITIES: Net Cash Provided by (Used in) Financing Activities [Abstract] Outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period Schedule of Maturity of Lease Liabilities Lessee, Operating Lease, Liability, Maturity [Table Text Block] TOTAL STOCKHOLDERS' EQUITY Beginning Balance Ending Balance Stockholders' Equity Attributable to Parent Common stock, shares, issued (in shares) Common Stock, Shares, Issued Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Prepaid and other assets, current Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Accounts receivable Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Accounts Receivables Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Accounts Receivables Purchase of treasury stock Payments for Repurchase of Common Stock Eurodollar Eurodollar [Member] Debt Instrument Conversion Term [Domain] Debt Instrument Conversion Term [Domain] Measurement Period Scenario [Domain] Total assets to be acquired Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Assets Acquired Including Goodwill Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Assets Acquired Including Goodwill STOCKHOLDERS' EQUITY Stockholders' Equity Attributable to Parent [Abstract] 2024 Amortization Of Debt Discount (Premium), Year Three Amortization Of Debt Discount (Premium), Year Three Balance Sheet Location [Axis] Balance Sheet Location [Axis] Lease liabilities, non-current Operating Lease, Liability, Noncurrent Measurement Frequency [Domain] Measurement Frequency [Domain] 2023 Amortization Of Debt Issuance Costs, Year One Amortization Of Debt Issuance Costs, Year One Total interest expense Interest Expense Aggregate principle amount Debt Instrument, Face Amount Effective interest rate Debt Instrument, Interest Rate, Effective Percentage Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Total purchase price Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net City Area Code City Area Code Share Price (in USD per share) Share Price Accumulated deficit Retained Earnings (Accumulated Deficit) Unvested restricted stock units Restricted Stock Units (RSUs) Restricted Stock Units (RSUs) [Member] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Schedule of Recognized Identified Assets Acquired and Liabilities Assumed Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Term of lease contract Lessee, Operating Lease, Remaining Lease Term Business Acquisition [Line Items] Business Acquisition [Line Items] Risk-free interest rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Tranche two Share-based Payment Arrangement, Tranche Two [Member] Backlog Order or Production Backlog [Member] RECONCILIATION OF CASH, CASH EQUIVALENTS AND RESTRICTED CASH TO CONSOLIDATED BALANCE SHEETS Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract] Income Statement [Abstract] Income Statement [Abstract] Amendment Flag Amendment Flag Total purchase consideration Business Combination, Consideration Transferred, Including Equity Interest in Acquiree Held Prior to Combination Accounts receivable Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables Purchase price held back to cover possible indemnification claims Business Combination, Indemnification Assets, Amount as of Acquisition Date Other Noncurrent Assets Other Noncurrent Assets [Member] Other income Other Operating Income Capitalized cloud computing software, net Capitalized Computer Software, Net Proceeds from exercise of stock options Proceeds from Stock Options Exercised Organization and Summary of Significant Accounting Policies Basis of Presentation and Significant Accounting Policies [Text Block] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Provision (benefit) for income taxes Income Tax Expense (Benefit) Basis Of Revenue Recognition [Axis] Basis Of Revenue Recognition [Axis] Basis Of Revenue Recognition Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Equity Components [Axis] Equity Components [Axis] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Antidilutive Securities [Axis] Antidilutive Securities [Axis] TOTAL CURRENT ASSETS Assets, Current Sales and marketing Selling and Marketing Expense [Member] Total lease payments (undiscounted) Lessee, Operating Lease, Liability, to be Paid Concentration Risk Type [Domain] Concentration Risk Type [Domain] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Canceled (in 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