Changes in Carrying Value of Goodwill By Reportable Segment (Detail) - USD ($) $ in Thousands |
12 Months Ended | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Apr. 30, 2017 |
Apr. 30, 2016 |
Apr. 30, 2015 |
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Goodwill [Line Items] | ||||||||||||
Goodwill, Beginning Balance | [1] | $ 590,072 | $ 254,440 | |||||||||
Adjustments | (8,179) | |||||||||||
Additions | 335,921 | [2] | $ 10,226 | [3] | ||||||||
Exchange rate fluctuations | (5,028) | (289) | ||||||||||
Goodwill, Ending Balance | [1] | 576,865 | 590,072 | 254,440 | ||||||||
Hay Group | ||||||||||||
Goodwill [Line Items] | ||||||||||||
Additions | 335,921 | [2] | 10,226 | [3] | ||||||||
Operating Segments | Executive Search | ||||||||||||
Goodwill [Line Items] | ||||||||||||
Goodwill, Beginning Balance | [1] | 95,485 | 96,497 | |||||||||
Exchange rate fluctuations | (3,336) | (1,012) | ||||||||||
Goodwill, Ending Balance | [1] | 92,149 | 95,485 | 96,497 | ||||||||
Operating Segments | Executive Search | North America | ||||||||||||
Goodwill [Line Items] | ||||||||||||
Goodwill, Beginning Balance | [1] | 48,320 | 49,603 | |||||||||
Exchange rate fluctuations | (2,119) | (1,283) | ||||||||||
Goodwill, Ending Balance | [1] | 46,201 | 48,320 | 49,603 | ||||||||
Operating Segments | Executive Search | EMEA | ||||||||||||
Goodwill [Line Items] | ||||||||||||
Goodwill, Beginning Balance | [1] | 46,193 | 45,922 | |||||||||
Exchange rate fluctuations | (1,217) | 271 | ||||||||||
Goodwill, Ending Balance | [1] | 44,976 | 46,193 | 45,922 | ||||||||
Operating Segments | Executive Search | Asia Pacific | ||||||||||||
Goodwill [Line Items] | ||||||||||||
Goodwill, Beginning Balance | [1] | 972 | 972 | |||||||||
Goodwill, Ending Balance | [1] | 972 | 972 | 972 | ||||||||
Operating Segments | Hay Group | ||||||||||||
Goodwill [Line Items] | ||||||||||||
Goodwill, Beginning Balance | [1] | 465,937 | 129,549 | |||||||||
Adjustments | (8,179) | |||||||||||
Additions | 335,921 | |||||||||||
Exchange rate fluctuations | (517) | 467 | ||||||||||
Goodwill, Ending Balance | [1] | 457,241 | 465,937 | 129,549 | ||||||||
Operating Segments | Futurestep | ||||||||||||
Goodwill [Line Items] | ||||||||||||
Goodwill, Beginning Balance | [1] | 28,650 | 28,394 | |||||||||
Exchange rate fluctuations | (1,175) | 256 | ||||||||||
Goodwill, Ending Balance | [1] | $ 27,475 | $ 28,650 | $ 28,394 | ||||||||
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