KLA Corporation Quarterly report pursuant to Section 13 or 15(d)

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Schedule of Notional Amount (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Mar. 31, 2021	Jun. 30, 2020
Derivative
Remaining maturity	11 months	11 months
Derivatives designated as hedging instruments \| Purchase \| Other foreign currency hedge contracts
Derivative
Derivative, notional amount	$ 240,693	$ 329,310
Derivatives designated as hedging instruments \| Purchase \| Cash Flow Hedging \| Foreign exchange contracts
Derivative
Derivative, notional amount	6,231	10,705
Derivatives designated as hedging instruments \| Sell \| Other foreign currency hedge contracts
Derivative
Derivative, notional amount	283,051	357,939
Derivatives designated as hedging instruments \| Sell \| Cash Flow Hedging \| Foreign exchange contracts
Derivative
Derivative, notional amount	133,485	71,431
Derivatives designated as hedging instruments \| Sell \| Net Investment Hedging \| Foreign exchange contracts
Derivative
Derivative, notional amount	$ 66,848	$ 0