KLA Corporation Quarterly report [Sections 13 or 15(d)]

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Schedule of Notional Amount (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Jun. 30, 2026
Derivative
Remaining maturity	22 months	22 months
Derivatives designated as hedging instruments \| Purchase \| Other foreign currency hedge contracts
Derivative
Derivative, notional amount	$ 822,018	$ 978,174
Derivatives designated as hedging instruments \| Purchase \| Cash Flow Hedging \| Foreign exchange contracts
Derivative
Derivative, notional amount	574,633	533,193
Derivatives designated as hedging instruments \| Sell \| Other foreign currency hedge contracts
Derivative
Derivative, notional amount	517,417	608,933
Derivatives designated as hedging instruments \| Sell \| Cash Flow Hedging \| Foreign exchange contracts
Derivative
Derivative, notional amount	107,026	61,209
Derivatives designated as hedging instruments \| Sell \| Net Investment Hedging \| Foreign exchange contracts
Derivative
Derivative, notional amount	$ 341,625	$ 343,791