Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Merger Related Commitment and Fees (Details)

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Commitments and Contingencies - Merger Related Commitment and Fees (Details) - KLA-Tencor Lam Research Merger
$ in Millions
12 Months Ended
Jun. 30, 2016
USD ($)
Merger-Related Commitment and Fees [Abstract]  
Professional fees $ 58.0
Professional fees, amount payable at execution of engagement letter 0.1
Professional fees, amount payable at delivery of opinion 5.0
Termination fee 290.0
Business Combination, Integration Related Costs 23.8
Selling, general and administrative  
Merger-Related Commitment and Fees [Abstract]  
Acquisition related costs $ 5.1