Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v2.4.1.9
Subsequent Events (Details) (Forecast)
0 Months Ended
Mar. 31, 2016
Forecast
 
Subsequent Event [Line Items]  
Workforce reduction percent 10.00%klac_RestructuringandRelatedActivitiesWorkforceReductionPercent
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioForecastMember