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

Financial Instruments - Additional Information (Detail)

v3.20.2

Financial Instruments - Additional Information (Detail) - USD ($) $ in Millions		12 Months Ended
	Dec. 16, 2019	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2018	Mar. 31, 2017
Financial Instrument [Line Items]
Sale/maturities of available-for-sale marketable securities		$ 4.8
Designated as Hedge Instrument \| Interest Rate Swap \| Cash Flow Hedge
Financial Instrument [Line Items]
Derivative notional amount					$ 129.8
Interest rate		1.919%
Interest expense recognized on termination of interest rate swap	$ 0.5
Not Designated as Hedge Instrument \| Foreign Exchange Forward Contracts
Financial Instrument [Line Items]
Foreign currency gains (losses)		$ (0.3)	$ 1.2	$ (3.7)
Not Designated as Hedge Instrument \| Foreign Exchange Forward Contracts \| Income Taxes And Other Receivables \| Derivatives Purchased
Financial Instrument [Line Items]
Derivative notional amount		91.2	51.4
Not Designated as Hedge Instrument \| Foreign Exchange Forward Contracts \| Income Taxes And Other Receivables \| Derivatives Sold
Financial Instrument [Line Items]
Derivative notional amount		$ 41.8	40.0
Available-for-sale Marketable Securities \| Minimum
Financial Instrument [Line Items]
Marketable securities remaining maturity		1 month
Available-for-sale Marketable Securities \| Maximum
Financial Instrument [Line Items]
Marketable securities remaining maturity		12 months
Mutual Funds
Financial Instrument [Line Items]
Unrealized loss relates to equity securities		$ 8.2	$ 4.7
Unrealized gains relates to equity securities				$ 3.9

- Definition

Financial Instrument [Line Items]

+ References

No definition available.

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- Definition

Interest expense recognized on termination of interest rate swap.

+ References

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- Definition

Marketable securities remaining maturity.

+ References

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

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- Definition

Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

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- Definition

Amount of unrealized gain on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount of unrealized loss on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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- Definition

Amount of cash inflow from sale, maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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