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

Restructuring Charges - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 0	$ 7,066
Costs of revenue
Restructuring Cost and Reserve [Line Items]
Restructuring costs		2,800
Research and development
Restructuring Cost and Reserve [Line Items]
Restructuring costs		1,000
Selling general and administrative
Restructuring Cost and Reserve [Line Items]
Restructuring costs		$ 3,300