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Basis of Presentation and Recent Developments (Details) £ in Thousands, $ in Thousands | Oct. 03, 2022 USD ($) | Oct. 03, 2022 GBP (£) | Jul. 15, 2022 USD ($) | Jul. 12, 2022 USD ($) | Apr. 19, 2022 USD ($) | Sep. 30, 2022 USD ($) | Dec. 31, 2021 USD ($)
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Reclassification [Line Items] |  |  |  |  |  |  |
Accrued media |  |  |  |  |  | $ 188,344 | $ 237,794
BNG |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Aggregate purchase price |  |  |  |  | $ 20,695 |  |
Estimated contingent consideration |  |  |  |  | $ 50,000 |  |
Contingent consideration payable in cash (percent) |  |  |  |  | 67.00% |  |
Contingent consideration payable in equity (percent) |  |  |  |  | 33.00% |  |
PEP Group |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Aggregate purchase price |  |  |  | $ 521 |  |  |
Estimated contingent consideration |  |  |  | $ 2,679 |  |  |
Apollo |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Aggregate purchase price |  |  | $ 2,300 |  |  |  |
Payments to Acquire Business, First Payment |  |  | 1 |  |  |  |
Payments to Acquire Business, Second Payment |  |  | $ 1,500 |  |  |  |
Subsequent event | Maru Group |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Aggregate purchase price | £ |  | £ 23,000 |  |  |  |  |
Subsequent event | Wolfgang |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Aggregate purchase price | $ 3,750 |  |  |  |  |  |
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable | 5,250 |  |  |  |  |  |
Subsequent event | Epicenter |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Aggregate purchase price | 9,729 |  |  |  |  |  |
Estimated contingent consideration | $ 5,000 |  |  |  |  |  |
Restatement Adjustment |  |  |  |  |  |  |
Reclassification [Line Items] |  |  |  |  |  |  |
Accrued media |  |  |  |  |  |  | $ 237,794

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