Quarterly report pursuant to Section 13 or 15(d)

DEI Document

v2.4.0.8
DEI Document
9 Months Ended
Mar. 31, 2014
Apr. 11, 2014
Entity Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Mar. 31, 2014  
Document Fiscal Year Focus 2014  
Document Fiscal Period Focus Q3  
Entity Registrant Name KLA TENCOR CORP  
Entity Central Index Key 0000319201  
Entity Filer Category Large Accelerated Filer  
Current Fiscal Year End Date --06-30  
Trading Symbol klac  
Entity Common Stock, Shares Outstanding   165,826,885