KLA Corporation Annual report pursuant to Section 13 and 15(d)

Derivative Instruments and Hedging Activities - Schedule of Notional Amounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Derivatives designated as hedging instruments \| Purchase \| Other foreign currency hedge contracts
Derivative
Derivative, notional amount	$ 165,563	$ 122,275
Derivatives designated as hedging instruments \| Purchase \| Cash flow hedge contracts
Derivative
Derivative, notional amount	19,305	7,591
Derivatives designated as hedging instruments \| Sell \| Other foreign currency hedge contracts
Derivative
Derivative, notional amount	118,504	115,087
Derivatives designated as hedging instruments \| Sell \| Cash flow hedge contracts
Derivative
Derivative, notional amount	$ 128,672	$ 91,793
Maximum
Derivative
Remaining maturity	10 months	7 months