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

Restructuring Charges - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 0	$ 1,392	$ 0	$ 8,458
Costs of revenue
Restructuring Cost and Reserve [Line Items]
Restructuring costs		500		3,300
Research and development
Restructuring Cost and Reserve [Line Items]
Restructuring costs		500		1,500
Selling general and administrative
Restructuring Cost and Reserve [Line Items]
Restructuring costs		$ 400		$ 3,700