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Network
2437407 - Disclosure - Income Taxes - Summary of Income Tax Contingencies (Details)
(http://www.kla-tencor.com/role/IncomeTaxesSummaryOfIncomeTaxContingenciesDetails)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000319201 (http://www.sec.gov/CIK)
Income Tax Disclosure [Abstract]Period [Axis]
2015-07-01 - 2016-06-30
2014-07-01 - 2015-06-30
2013-07-01 - 2014-06-30
Income Tax Disclosure [Abstract]
 
 
 
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
 
 
 
Unrecognized tax benefits at the beginning of the year
69,018,000  
59,575,000  
59,494,000  
Increases for tax positions taken in prior years
4,245,000  
1,245,000  
551,000  
Decreases for tax positions taken in prior years
(1,209,000) 
(7,000) 
(764,000) 
Increases for tax positions taken in current year
13,636,000  
11,634,000  
11,585,000  
Decreases for settlements with taxing authorities
(8,762,000) 
0  
(3,601,000) 
Decreases for lapsing of statutes of limitations
(26,563,000) 
(3,429,000) 
(7,690,000) 
Unrecognized tax benefits at the end of the year
50,365,000  
 
69,018,000  
 
59,575,000