Quarterly report pursuant to Section 13 or 15(d)

Litigation and Other Legal Matters Litigation and Other Legal Matters (Details)

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Litigation and Other Legal Matters Litigation and Other Legal Matters (Details)
Dec. 29, 2015
action
Dec. 21, 2015
action
Nov. 10, 2015
action
Oct. 21, 2015
stockholders
Merger-related litigation        
Loss Contingencies [Line Items]        
Number of actions filed 4      
California class actions        
Loss Contingencies [Line Items]        
Number of actions filed   3    
Delaware Chancery Court class action        
Loss Contingencies [Line Items]        
Number of actions filed     1  
KLA-Tencor | California class actions        
Loss Contingencies [Line Items]        
Number of KLA-Tencor stockholders | stockholders       4