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v3.25.2

Planned Acquisition of IPG by Omnicom (Details) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 USD ($) | Jun. 30, 2025 USD ($)
Business Combination [Line Items] |  |
Conversion ratio | 0.344 |
Percentage of voting interests in post-merger entity - omnicom shareholders (as a percent) | 60.60% | 60.60%
Percentage of voting interests in post-merger entity - ipg shareholders (as a percent) | 39.40% | 39.40%
Loss on contract termination | $ 439.0 |
Loss on contract termination, (as percent) | 50.00% | 50.00%
IPG | Omnicom |  |
Business Combination [Line Items] |  |
Deal costs comprised of legal professional filing fees | $ 10.9 | $ 15.7

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