CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive Loss, Net	Total Korn Ferry Stockholders' Equity	Noncontrolling Interest
Beginning Balance at Apr. 30, 2020	$ 1,223,691	$ 585,560	$ 742,993	$ (107,172)	$ 1,221,381	$ 2,310
Beginning Balance, Shares at Apr. 30, 2020		54,450
Net income	(30,855)		(30,833)		(30,833)	(22)
Other comprehensive income (loss)	25,655			25,580	25,580	75
Dividends paid to shareholders	(5,807)		(5,807)		(5,807)
Purchase of stock	(4,442)	$ (4,442)			(4,442)
Purchase of stock, shares		(161)
Issuance of stock	3,966	$ 3,966			3,966
Issuance of stock (shares)		580
Stock-based compensation	5,813	$ 5,813			5,813
Ending Balance at Jul. 31, 2020	1,218,021	$ 590,897	706,353	(81,592)	1,215,658	2,363
Ending Balance, Shares at Jul. 31, 2020		54,869
Beginning Balance at Apr. 30, 2020	1,223,691	$ 585,560	742,993	(107,172)	1,221,381	2,310
Beginning Balance, Shares at Apr. 30, 2020		54,450
Net income	48,811
Ending Balance at Jan. 31, 2021	1,294,994	$ 576,798	774,303	(57,914)	1,293,187	1,807
Ending Balance, Shares at Jan. 31, 2021		53,997
Beginning Balance at Jul. 31, 2020	1,218,021	$ 590,897	706,353	(81,592)	1,215,658	2,363
Beginning Balance, Shares at Jul. 31, 2020		54,869
Net income	28,078		27,778		27,778	300
Other comprehensive income (loss)	(2,061)			(2,063)	(2,063)	2
Dividends paid to shareholders	(5,607)		(5,607)		(5,607)
Dividends to noncontrolling interest	(1,115)					(1,115)
Purchase of stock	(22,878)	$ (22,878)			(22,878)
Purchase of stock, shares		(757)
Issuance of stock (shares)		41
Stock-based compensation	7,084	$ 7,084			7,084
Ending Balance at Oct. 31, 2020	1,221,522	$ 575,103	728,524	(83,655)	1,219,972	1,550
Ending Balance, Shares at Oct. 31, 2020		54,153
Net income	51,588		51,319		51,319	269
Other comprehensive income (loss)	25,729			25,741	25,741	(12)
Dividends paid to shareholders	(5,540)		(5,540)		(5,540)
Purchase of stock	(7,779)	$ (7,779)			(7,779)
Purchase of stock, shares		(224)
Issuance of stock	2,594	$ 2,594			2,594
Issuance of stock (shares)		68
Stock-based compensation	6,880	$ 6,880			6,880
Ending Balance at Jan. 31, 2021	1,294,994	$ 576,798	774,303	(57,914)	1,293,187	1,807
Ending Balance, Shares at Jan. 31, 2021		53,997
Beginning Balance at Apr. 30, 2021	$ 1,368,775	$ 583,260	834,949	(51,820)	1,366,389	2,386
Beginning Balance, Shares at Apr. 30, 2021	54,008	54,008
Net income	$ 76,397		74,823		74,823	1,574
Other comprehensive income (loss)	(7,999)			(8,023)	(8,023)	24
Dividends paid to shareholders	(6,866)		(6,866)		(6,866)
Purchase of stock	(20,091)	$ (20,091)			(20,091)
Purchase of stock, shares		(297)
Issuance of stock	3,992	$ 3,992			3,992
Issuance of stock (shares)		795
Stock-based compensation	6,962	$ 6,962			6,962
Ending Balance at Jul. 31, 2021	1,421,170	$ 574,123	902,906	(59,843)	1,417,186	3,984
Ending Balance, Shares at Jul. 31, 2021		54,506
Beginning Balance at Apr. 30, 2021	$ 1,368,775	$ 583,260	834,949	(51,820)	1,366,389	2,386
Beginning Balance, Shares at Apr. 30, 2021	54,008	54,008
Net income	$ 237,786
Ending Balance at Jan. 31, 2022	$ 1,535,245	$ 562,564	1,049,431	(80,718)	1,531,277	3,968
Ending Balance, Shares at Jan. 31, 2022	54,216	54,216
Beginning Balance at Jul. 31, 2021	$ 1,421,170	$ 574,123	902,906	(59,843)	1,417,186	3,984
Beginning Balance, Shares at Jul. 31, 2021		54,506
Net income	76,332		75,772		75,772	560
Other comprehensive income (loss)	(6,865)			(6,687)	(6,687)	(178)
Dividends paid to shareholders	(6,683)		(6,683)		(6,683)
Purchase of stock	(7,353)	$ (7,353)			(7,353)
Purchase of stock, shares		(99)
Issuance of stock (shares)		59
Stock-based compensation	7,288	$ 7,288			7,288
Ending Balance at Oct. 31, 2021	1,483,889	$ 574,058	971,995	(66,530)	1,479,523	4,366
Ending Balance, Shares at Oct. 31, 2021		54,466
Net income	85,057		84,101		84,101	956
Other comprehensive income (loss)	(14,235)			(14,188)	(14,188)	(47)
Dividends paid to shareholders	(6,665)		(6,665)		(6,665)
Dividends to noncontrolling interest	(1,307)					(1,307)
Purchase of stock	(22,331)	$ (22,331)			(22,331)
Purchase of stock, shares		(307)
Issuance of stock	3,696	$ 3,696			3,696
Issuance of stock (shares)		57
Stock-based compensation	7,141	$ 7,141			7,141
Ending Balance at Jan. 31, 2022	$ 1,535,245	$ 562,564	$ 1,049,431	$ (80,718)	$ 1,531,277	$ 3,968
Ending Balance, Shares at Jan. 31, 2022	54,216	54,216