v3.26.3
Earnings (loss) per share - Schedule of basic and diluted earnings (loss) per share (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Numerator:        
Net income (loss) $ 109.2 $ 39.5 $ 83.3 $ 136.9
Net loss attributable to noncontrolling interests (1.8) (0.5) (5.2) (0.6)
Net income (loss) attributable to INNIO N.V. shareholders $ 111.0 $ 40.0 $ 88.5 $ 137.5
Weighted-average shares outstanding:        
Basic (in shares) 750,000,000 750,000,000 750,000,000 750,000,000
Effect of potentially dilutive RSUs (in shares) 0 0 16,904 0
Diluted (in shares) 750,000,000 750,000,000 750,016,904 750,000,000
Net earnings (loss) per share:        
Basic (in USD per share) $ 0.15 $ 0.05 $ 0.12 $ 0.18
Diluted (in USD per share) $ 0.15 $ 0.05 $ 0.12 $ 0.18