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Pay vs Performance Disclosure - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Pay vs Performance Disclosure        
Net income available to IPG common stockholders $ 162.5 $ 214.5 $ 77.1 $ 324.9