CONDENSED 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, 2023			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 income	47,185	46,605		46,605		580
Other comprehensive income (loss)	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
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 income	106,949
Ending balance (in shares) at Jan. 31, 2024			52,345
Ending balance at Jan. 31, 2024	1,707,411	1,703,623	$ 428,413	1,378,140	(102,930)	3,788
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 income	44	(1,711)		(1,711)		1,755
Other comprehensive income (loss)	(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
Ending balance at Oct. 31, 2023	1,660,500	1,656,153	$ 435,340	1,336,686	(115,873)	4,347
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	59,720	59,071		59,071		649
Other comprehensive income (loss)	13,191	12,943			12,943	248
Dividends paid to shareholders	(17,617)	(17,617)		(17,617)
Dividends paid to noncontrolling interest	(1,456)					(1,456)
Purchase of stock (in shares)			(384)
Purchase of stock	(21,102)	(21,102)	$ (21,102)
Issuance of stock (in shares)			73
Issuance of stock	4,056	4,056	$ 4,056
Stock-based compensation	10,119	10,119	$ 10,119
Ending balance (in shares) at Jan. 31, 2024			52,345
Ending balance at Jan. 31, 2024	$ 1,707,411	1,703,623	$ 428,413	1,378,140	(102,930)	3,788
Beginning balance (in shares) at Apr. 30, 2024	51,983		51,983
Beginning balance at Apr. 30, 2024	$ 1,737,325	1,733,058	$ 414,885	1,425,844	(107,671)	4,267
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	64,256	62,604		62,604		1,652
Other comprehensive income (loss)	2,293	2,811			2,811	(518)
Dividends paid to shareholders	(19,800)	(19,800)		(19,800)
Purchase of stock (in shares)			(604)
Purchase of stock	(40,113)	(40,113)	$ (40,113)
Issuance of stock (in shares)			775
Issuance of stock	4,720	4,720	$ 4,720
Stock-based compensation	10,561	10,561	$ 10,561
Ending balance (in shares) at Jul. 31, 2024			52,154
Ending balance at Jul. 31, 2024	$ 1,759,242	1,753,841	$ 390,053	1,468,648	(104,860)	5,401
Beginning balance (in shares) at Apr. 30, 2024	51,983		51,983
Beginning balance at Apr. 30, 2024	$ 1,737,325	1,733,058	$ 414,885	1,425,844	(107,671)	4,267
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 185,938
Ending balance (in shares) at Jan. 31, 2025	51,573		51,573
Ending balance at Jan. 31, 2025	$ 1,797,277	1,792,740	$ 365,435	1,549,086	(121,781)	4,537
Beginning balance (in shares) at Jul. 31, 2024			52,154
Beginning balance at Jul. 31, 2024	1,759,242	1,753,841	$ 390,053	1,468,648	(104,860)	5,401
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	62,343	60,800		60,800		1,543
Other comprehensive income (loss)	4,105	4,359			4,359	(254)
Dividends paid to shareholders	(19,462)	(19,462)		(19,462)
Dividends paid to noncontrolling interest	(1,570)					(1,570)
Purchase of stock (in shares)			(461)
Purchase of stock	(32,944)	(32,944)	$ (32,944)
Issuance of stock (in shares)			55
Stock-based compensation	11,151	11,151	$ 11,151
Ending balance (in shares) at Oct. 31, 2024			51,748
Ending balance at Oct. 31, 2024	1,782,865	1,777,745	$ 368,260	1,509,986	(100,501)	5,120
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	59,339	58,414		58,414		925
Other comprehensive income (loss)	(21,320)	(21,280)			(21,280)	(40)
Dividends paid to shareholders	(19,314)	(19,314)		(19,314)
Dividends paid to noncontrolling interest	(1,468)					(1,468)
Purchase of stock (in shares)			(238)
Purchase of stock	(17,972)	(17,972)	$ (17,972)
Issuance of stock (in shares)			63
Issuance of stock	4,022	4,022	$ 4,022
Stock-based compensation	$ 11,125	11,125	$ 11,125
Ending balance (in shares) at Jan. 31, 2025	51,573		51,573
Ending balance at Jan. 31, 2025	$ 1,797,277	$ 1,792,740	$ 365,435	$ 1,549,086	$ (121,781)	$ 4,537