CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Total Korn Ferry Stockholders' Equity	Common Stock	Retained Earnings	Accumulated Other Comprehensive Loss, Net	Noncontrolling Interest
Beginning balance (in shares) at Apr. 30, 2022			53,190
Beginning balance at Apr. 30, 2022	$ 1,549,589	$ 1,544,346	$ 502,008	$ 1,134,523	$ (92,185)	$ 5,243
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	78,536	77,247		77,247		1,289
Other comprehensive (loss) income	(16,307)	(16,259)			(16,259)	(48)
Dividends paid to shareholders	(8,703)	(8,703)		(8,703)
Purchase of stock (in shares)			(735)
Purchase of stock	(44,276)	(44,276)	$ (44,276)
Issuance of stock (in shares)			1,047
Issuance of stock	4,857	4,857	$ 4,857
Stock-based compensation	7,538	7,538	$ 7,538
Ending balance (in shares) at Jul. 31, 2022			53,502
Ending balance at Jul. 31, 2022	1,571,234	1,564,750	$ 470,127	1,203,067	(108,444)	6,484
Beginning balance (in shares) at Apr. 30, 2022			53,190
Beginning balance at Apr. 30, 2022	1,549,589	1,544,346	$ 502,008	1,134,523	(92,185)	5,243
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	153,151
Ending balance (in shares) at Oct. 31, 2022			52,909
Ending balance at Oct. 31, 2022	1,582,720	1,578,052	$ 446,280	1,268,437	(136,665)	4,668
Beginning balance (in shares) at Jul. 31, 2022			53,502
Beginning balance at Jul. 31, 2022	1,571,234	1,564,750	$ 470,127	1,203,067	(108,444)	6,484
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	74,615	73,541		73,541		1,074
Other comprehensive (loss) income	(27,978)	(28,221)			(28,221)	243
Dividends paid to shareholders	(8,171)	(8,171)		(8,171)
Dividends paid to noncontrolling interest	(3,133)					(3,133)
Purchase of stock (in shares)			(627)
Purchase of stock	(33,286)	(33,286)	$ (33,286)
Issuance of stock (in shares)			34
Stock-based compensation	9,439	9,439	$ 9,439
Ending balance (in shares) at Oct. 31, 2022			52,909
Ending balance at Oct. 31, 2022	$ 1,582,720	1,578,052	$ 446,280	1,268,437	(136,665)	4,668
Beginning balance (in shares) at Apr. 30, 2023	52,269		52,269
Beginning balance at Apr. 30, 2023	$ 1,653,005	1,648,071	$ 429,754	1,311,081	(92,764)	4,934
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	47,185	46,605		46,605		580
Other comprehensive (loss) income	2,628	2,293			2,293	335
Dividends paid to shareholders	(9,627)	(9,627)		(9,627)
Purchase of stock (in shares)			(291)
Purchase of stock	(14,358)	(14,358)	$ (14,358)
Issuance of stock (in shares)			727
Issuance of stock	5,217	5,217	$ 5,217
Stock-based compensation	8,480	8,480	$ 8,480
Ending balance (in shares) at Jul. 31, 2023			52,705
Ending balance at Jul. 31, 2023	$ 1,692,530	1,686,681	$ 429,093	1,348,059	(90,471)	5,849
Beginning balance (in shares) at Apr. 30, 2023	52,269		52,269
Beginning balance at Apr. 30, 2023	$ 1,653,005	1,648,071	$ 429,754	1,311,081	(92,764)	4,934
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	$ 47,229
Ending balance (in shares) at Oct. 31, 2023	52,656		52,656
Ending balance at Oct. 31, 2023	$ 1,660,500	1,656,153	$ 435,340	1,336,686	(115,873)	4,347
Beginning balance (in shares) at Jul. 31, 2023			52,705
Beginning balance at Jul. 31, 2023	1,692,530	1,686,681	$ 429,093	1,348,059	(90,471)	5,849
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	44	(1,711)		(1,711)		1,755
Other comprehensive (loss) income	(25,619)	(25,402)			(25,402)	(217)
Dividends paid to shareholders	(9,662)	(9,662)		(9,662)
Dividends paid to noncontrolling interest	(3,040)					(3,040)
Purchase of stock (in shares)			(100)
Purchase of stock	(4,765)	(4,765)	$ (4,765)
Issuance of stock (in shares)			51
Stock-based compensation	$ 11,012	11,012	$ 11,012
Ending balance (in shares) at Oct. 31, 2023	52,656		52,656
Ending balance at Oct. 31, 2023	$ 1,660,500	$ 1,656,153	$ 435,340	$ 1,336,686	$ (115,873)	$ 4,347