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

Derivative Instruments and Hedging Activities - Derivative Instrument Gain (Loss) (Details)

Derivative Instruments and Hedging Activities - Derivative Instrument Gain (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Derivative
Gains (losses) in accumulated OCI on derivatives (effective portion)	$ (2,798)	$ (1,309)	$ (3,952)	$ 12,648
Gains (losses) reclassified from accumulated OCI into income (effective portion)	(1,107)	3,920	(870)	5,732
Derivatives Designated as Hedging Instruments
Derivative
Gains (losses) reclassified from accumulated OCI into income (effective portion)	(1,107)	3,920	(870)	5,732
Accumulated OCI \| Derivatives Designated as Hedging Instruments
Derivative
Gains (losses) in accumulated OCI on derivatives (effective portion)	(2,798)	(1,309)	(3,952)	12,648
Revenues \| Derivatives Designated as Hedging Instruments
Derivative
Gains (losses) reclassified from accumulated OCI into income (effective portion)	(930)	4,306	79	6,508
Costs of revenues \| Derivatives Designated as Hedging Instruments
Derivative
Gains (losses) reclassified from accumulated OCI into income (effective portion)	(366)	(575)	(1,516)	(1,091)
Interest expense \| Derivatives Designated as Hedging Instruments
Derivative
Gains (losses) reclassified from accumulated OCI into income (effective portion)	189	189	567	315
Other expense (income), net \| Derivatives Designated as Hedging Instruments
Derivative
Gains (losses) recognized in income on derivatives (ineffective portion and amount excluded from effectiveness testing)	(396)	187	(795)	307
Other expense (income), net \| Derivatives Not Designated as Hedging Instruments
Derivative
Gains (losses) recognized in income	(7,350)	(1,408)	(12,985)	9,704
Gain (loss) on extinguishment of debt and other, net \| Derivatives Not Designated as Hedging Instruments
Derivative
Gains (losses) recognized in income	$ 0	$ 0	$ 0	$ 1,180