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

Restructuring Charges - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 125	$ 1,921	$ 8,583	$ 9,201
Costs of revenue
Restructuring Cost and Reserve [Line Items]
Restructuring costs			3,400
Engineering research and development
Restructuring Cost and Reserve [Line Items]
Restructuring costs			1,500
Selling general and administrative
Restructuring Cost and Reserve [Line Items]
Restructuring costs			$ 3,700