v3.22.4
Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended 9 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2022
Dec. 31, 2021
Earnings Per Share [Abstract]        
Net earnings attributable to Modine $ 24.5 $ 74.1 $ 63.2 $ 76.8
Weighted-average shares outstanding - basic (in shares) 52.3 52.0 52.2 51.9
Effect of dilutive securities (in shares) 0.6 0.4 0.5 0.6
Weighted-average shares outstanding - diluted (in shares) 52.9 52.4 52.7 52.5
Earnings per Share [Abstract]        
Net earnings per share - basic (in dollars per share) $ 0.47 $ 1.42 $ 1.21 $ 1.48
Net earnings per share - diluted (in dollars per share) $ 0.46 $ 1.41 $ 1.2 $ 1.46
Stock Options [Member]        
Earnings Per Share [Abstract]        
Antidilutive securities excluded from computation of earning per share (in shares) 0.1 0.6 0.6 0.6
Restricted Stock [Member]        
Earnings Per Share [Abstract]        
Antidilutive securities excluded from computation of earning per share (in shares)   0.2 0.2 0.2
Restricted Stock [Member] | Maximum [Member]        
Earnings Per Share [Abstract]        
Antidilutive securities excluded from computation of earning per share (in shares) 0.1