v3.26.1
Basic and Diluted Earnings Per Share - Schedule of Basic and Diluted Earnings per Common Share Attributable to Common Stockholders (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended
Jul. 31, 2026
Jul. 31, 2025
Earnings Per Share Disclosure [Line Items]    
Net income attributable to Korn Ferry $ 68,967 $ 66,636
Less: distributed and undistributed earnings to nonvested restricted stockholders 1,073 855
Basic net earnings attributable to common stockholders 67,894 65,781
Add: undistributed earnings to nonvested restricted stockholders 490 470
Less: reallocation of undistributed earnings to nonvested restricted stockholders 481 462
Diluted net earnings attributable to common stockholders $ 67,903 $ 65,789
Weighted-average common shares outstanding:    
Basic weighted-average number of common shares outstanding (in shares) 50,351 51,466
Diluted weighted-average number of common shares outstanding (in shares) 51,347 52,368
Net earnings per common share:    
Basic earnings per share (in usd per share) $ 1.35 $ 1.28
Diluted earnings per share (in usd per share) $ 1.32 $ 1.26
ESPP    
Weighted-average common shares outstanding:    
Effect of dilutive securities (in shares) 0 3
Restricted Stock    
Weighted-average common shares outstanding:    
Effect of dilutive securities (in shares) 996 899