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

Derivative Instruments and Hedging Activities - Schedule of Derivative Instruments (Details)

Derivative Instruments and Hedging Activities - Schedule of Derivative Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Jun. 30, 2017
Derivative Assets and Liabilities, at Fair Value, Net, by Balance Sheet Classification
Asset derivatives fair value	$ 2,318	$ 5,931
Liability derivatives fair value	4,577	1,275
Other current assets
Derivative Assets and Liabilities, at Fair Value, Net, by Balance Sheet Classification
Asset derivatives fair value	2,318	5,931
Other current liabilities
Derivative Assets and Liabilities, at Fair Value, Net, by Balance Sheet Classification
Liability derivatives fair value	4,577	1,275
Derivatives Designated as Hedging Instruments \| Other current assets
Derivative Assets and Liabilities, at Fair Value, Net, by Balance Sheet Classification
Foreign exchange contracts, other current assets	1,169	2,198
Asset derivatives fair value	1,169	2,198
Derivatives Designated as Hedging Instruments \| Other current liabilities
Derivative Assets and Liabilities, at Fair Value, Net, by Balance Sheet Classification
Foreign exchange contracts, other current liabilities	905	72
Liability derivatives fair value	905	72
Derivatives Not Designated as Hedging Instruments \| Other current assets
Derivative Assets and Liabilities, at Fair Value, Net, by Balance Sheet Classification
Foreign exchange contracts, other current assets	1,149	3,733
Asset derivatives fair value	1,149	3,733
Derivatives Not Designated as Hedging Instruments \| Other current liabilities
Derivative Assets and Liabilities, at Fair Value, Net, by Balance Sheet Classification
Foreign exchange contracts, other current liabilities	3,672	1,203
Liability derivatives fair value	$ 3,672	$ 1,203