CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2021
Statement [Line Items]
Total revenue	$ 2,863,836	$ 2,643,455	$ 1,819,946
Compensation and benefits	1,901,203	1,741,452	1,297,880
General and administrative expenses	268,458	237,272	191,776
Depreciation and amortization	68,335	63,521	61,845
Restructuring charges, net	42,573	0	30,732
Total operating expenses	2,547,496	2,173,381	1,664,162
Operating income	316,340	470,074	155,784
Other income (loss), net	5,261	(11,880)	37,194
Interest expense, net	(25,864)	(25,293)	(29,278)
Income before provision for income taxes	295,737	432,901	163,700
Income tax provision	82,683	102,056	48,138
Net income	213,054	330,845	115,562
Net income attributable to noncontrolling interest	(3,525)	(4,485)	(1,108)
Net income attributable to Korn Ferry	$ 209,529	$ 326,360	$ 114,454
Earnings per common share attributable to Korn Ferry:
Basic (in dollars per share)	$ 3.98	$ 6.04	$ 2.11
Diluted (in dollars per share)	$ 3.95	$ 5.98	$ 2.09
Weighted-average common shares outstanding:
Basic (in shares)	51,482	52,807	52,928
Diluted (in shares)	51,883	53,401	53,405
Cash dividends declared per share (in dollars per share)	$ 0.60	$ 0.48	$ 0.40
Fee revenue
Statement [Line Items]
Total revenue	$ 2,835,408	$ 2,626,718	$ 1,810,047
Cost of services	238,499	114,399	72,030
Reimbursed out-of-pocket engagement expenses
Statement [Line Items]
Total revenue	28,428	16,737	9,899
Reimbursed expenses
Statement [Line Items]
Cost of services	$ 28,428	$ 16,737	$ 9,899