Quarterly report pursuant to Section 13 or 15(d)

Basic and Diluted Earnings (Loss) Per Share - Basic and Diluted Earnings (Loss) per Common Share Attributable to Common Stockholders (Detail)

v3.21.2
Basic and Diluted Earnings (Loss) Per Share - Basic and Diluted Earnings (Loss) per Common Share Attributable to Common Stockholders (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended
Jul. 31, 2021
Jul. 31, 2020
Earnings Per Share Disclosure [Line Items]    
Net income (loss) attributable to Korn Ferry $ 74,823 $ (30,833)
Less: distributed and undistributed earnings to nonvested restricted stockholders 1,897 144
Basic net earnings (loss) attributable to common stockholders 72,926 (30,977)
Add: undistributed earnings to nonvested restricted stockholders 1,725  
Less: reallocation of undistributed earnings to nonvested restricted stockholders 1,707  
Diluted net earnings (loss) attributable to common stockholders $ 72,944 $ (30,977)
Basic 52,760 53,264
Diluted weighted-average number of common shares outstanding 53,320 53,264
Basic earnings (loss) per share $ 1.38 $ (0.58)
Diluted earnings (loss) per share $ 1.37 $ (0.58)
ESPP    
Earnings Per Share Disclosure [Line Items]    
Effect of dilutive securities 2  
Restricted Stock    
Earnings Per Share Disclosure [Line Items]    
Effect of dilutive securities 558