Korn Ferry Annual report pursuant to Section 13 and 15(d)

Intangible Assets (Detail) - USD ($) $ in Thousands	Apr. 30, 2017	Apr. 30, 2016
Intangible Assets [Line Items]
Amortized intangible assets, Gross	$ 167,351	$ 167,351
Amortized intangible assets, Accumulated Amortization	(56,109)	(40,707)
Amortized intangible assets, Net	111,242	126,644
Exchange rate fluctuations	77	383
Total Intangible assets	217,319	233,027
Trademarks
Intangible Assets [Line Items]
Amortized intangible assets, Gross	3,986	3,986
Amortized intangible assets, Accumulated Amortization	(3,986)	(3,986)
Unamortized intangible assets	106,000	106,000
Customer Lists
Intangible Assets [Line Items]
Amortized intangible assets, Gross	125,099	125,099
Amortized intangible assets, Accumulated Amortization	(31,094)	(19,910)
Amortized intangible assets, Net	94,005	105,189
Intellectual Property
Intangible Assets [Line Items]
Amortized intangible assets, Gross	33,100	33,100
Amortized intangible assets, Accumulated Amortization	(16,994)	(13,281)
Amortized intangible assets, Net	16,106	19,819
Database Rights
Intangible Assets [Line Items]
Amortized intangible assets, Gross	4,256	4,256
Amortized intangible assets, Accumulated Amortization	(3,202)	(2,777)
Amortized intangible assets, Net	1,054	1,479
Non-compete Agreements
Intangible Assets [Line Items]
Amortized intangible assets, Gross	910	910
Amortized intangible assets, Accumulated Amortization	(833)	(753)
Amortized intangible assets, Net	$ 77	$ 157