XML 134 R64.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Goodwill and Other Intangible Assets Estimated future amortization of other intangible assets (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2024
Summary of Other Intangible Assets [Abstract] |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] | The estimated annual amortization expense for other intangible assets for the next five years as of December 31, 2024 is listed below.
|  | 2025 |  | 2026 |  | 2027 |  | 2028 |  | 2029
Estimated amortization expense |  | $ | 80.9 |  |  | $ | 78.0 |  |  | $ | 68.6 |  |  | $ | 51.3 |  |  | $ | 50.8 |

X
- Definition Summary of Other Intangible Assets [Abstract] + References No definition available. + Details
Name: | ipg_SummaryofOtherIntangibleAssetsAbstract
Namespace Prefix: | ipg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482640/350-30-55-40 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 + Details
Name: | us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration