Business Combinations - Summary of Valuation of Intangible Assets Acquired (Details) - USD ($) $ in Thousands	Apr. 15, 2021	Mar. 19, 2021
Nielsen’s Advanced Video Advertising Business
Business Acquisition [Line Items]
Estimated Fair Value	$ 22,700
Estimated Weighted-Average Useful Lives (in years)	5 years 8 months 12 days
TOH Intermediate Holdings, LLC
Business Acquisition [Line Items]
Estimated Fair Value		$ 20,700
Estimated Weighted-Average Useful Lives (in years)		9 years 9 months 18 days
Developed Technology \| Nielsen’s Advanced Video Advertising Business
Business Acquisition [Line Items]
Estimated Fair Value	$ 14,200
Estimated Weighted-Average Useful Lives (in years)	5 years 10 months 24 days
IPR&D Technology \| Nielsen’s Advanced Video Advertising Business
Business Acquisition [Line Items]
Estimated Fair Value	$ 8,500
Estimated Weighted-Average Useful Lives (in years)	5 years 3 months 18 days
Customer Relationships \| TOH Intermediate Holdings, LLC
Business Acquisition [Line Items]
Estimated Fair Value		$ 700
Estimated Weighted-Average Useful Lives (in years)		4 years
Tradename \| TOH Intermediate Holdings, LLC
Business Acquisition [Line Items]
Estimated Fair Value		$ 20,000
Estimated Weighted-Average Useful Lives (in years)		10 years

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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