Annual report pursuant to Section 13 and 15(d)

Goodwill and Intangible Assets - Changes in Carrying Value of Goodwill By Reportable Segment (Detail)

v3.20.2
Goodwill and Intangible Assets - Changes in Carrying Value of Goodwill By Reportable Segment (Detail) - USD ($)
$ in Thousands
12 Months Ended
Apr. 30, 2020
Apr. 30, 2019
Goodwill [Line Items]    
Goodwill, Beginning Balance $ 578,298 $ 584,222
Additions 38,926  
Exchange rate fluctuations (3,281) (5,924)
Goodwill, Ending Balance 613,943 578,298
Operating Segments | Consulting    
Goodwill [Line Items]    
Goodwill, Beginning Balance 173,147 173,453
Exchange rate fluctuations (133) (306)
Goodwill, Ending Balance 173,014 173,147
Operating Segments | Executive Search    
Goodwill [Line Items]    
Goodwill, Beginning Balance 93,023 96,230
Exchange rate fluctuations (1,836) (3,207)
Goodwill, Ending Balance 91,187 93,023
Operating Segments | Executive Search | North America    
Goodwill [Line Items]    
Goodwill, Beginning Balance 46,571 47,757
Exchange rate fluctuations (850) (1,186)
Goodwill, Ending Balance 45,721 46,571
Operating Segments | Executive Search | EMEA    
Goodwill [Line Items]    
Goodwill, Beginning Balance 45,480 47,501
Exchange rate fluctuations (986) (2,021)
Goodwill, Ending Balance 44,494 45,480
Operating Segments | Executive Search | Asia Pacific    
Goodwill [Line Items]    
Goodwill, Beginning Balance 972 972
Goodwill, Ending Balance 972 972
Operating Segments | Digital    
Goodwill [Line Items]    
Goodwill, Beginning Balance 284,214 284,716
Additions 38,926  
Exchange rate fluctuations (413) (502)
Goodwill, Ending Balance 322,727 284,214
Operating Segments | RPO & Professional Search    
Goodwill [Line Items]    
Goodwill, Beginning Balance 27,914 29,823
Exchange rate fluctuations (899) (1,909)
Goodwill, Ending Balance $ 27,015 $ 27,914