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Operating Segments and Geographic Information - Revenue by geographic area (Details) $ in Millions | 3 Months Ended
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Sep. 29, 2018 USD ($) region | Sep. 30, 2017 USD ($)
Information on reportable segments |  |
Number of geographic regions | region | 3 |
Total net revenue | $ 268.5 | $ 190.9
Product revenue |  |
Information on reportable segments |  |
Total net revenue | 241.1 | 165.1
Service revenue |  |
Information on reportable segments |  |
Total net revenue | 27.4 | 25.8
United States |  |
Information on reportable segments |  |
Total net revenue | 72.8 | 77.6
United States | Product revenue |  |
Information on reportable segments |  |
Total net revenue | 60.1 | 64.6
United States | Service revenue |  |
Information on reportable segments |  |
Total net revenue | 12.7 | 13.0
Other Americas |  |
Information on reportable segments |  |
Total net revenue | 21.0 | 17.0
Other Americas | Product revenue |  |
Information on reportable segments |  |
Total net revenue | 17.9 | 12.0
Other Americas | Service revenue |  |
Information on reportable segments |  |
Total net revenue | 3.1 | 5.0
Total Americas |  |
Information on reportable segments |  |
Total net revenue | 93.8 | 94.6
Total Americas | Product revenue |  |
Information on reportable segments |  |
Total net revenue | 78.0 | 76.6
Total Americas | Service revenue |  |
Information on reportable segments |  |
Total net revenue | 15.8 | 18.0
Greater China |  |
Information on reportable segments |  |
Total net revenue | 58.9 | 23.0
Greater China | Product revenue |  |
Information on reportable segments |  |
Total net revenue | 58.7 | 22.4
Greater China | Service revenue |  |
Information on reportable segments |  |
Total net revenue | 0.2 | 0.6
Other Asia |  |
Information on reportable segments |  |
Total net revenue | 39.5 | 14.2
Other Asia | Product revenue |  |
Information on reportable segments |  |
Total net revenue | 36.0 | 13.1
Other Asia | Service revenue |  |
Information on reportable segments |  |
Total net revenue | 3.5 | 1.1
Total Asia-Pacific |  |
Information on reportable segments |  |
Total net revenue | 98.4 | 37.2
Total Asia-Pacific | Product revenue |  |
Information on reportable segments |  |
Total net revenue | 94.7 | 35.5
Total Asia-Pacific | Service revenue |  |
Information on reportable segments |  |
Total net revenue | 3.7 | 1.7
Switzerland |  |
Information on reportable segments |  |
Total net revenue | 25.7 | 28.3
Switzerland | Product revenue |  |
Information on reportable segments |  |
Total net revenue | 25.7 | 28.3
Switzerland | Service revenue |  |
Information on reportable segments |  |
Total net revenue | 0.0 | 0.0
Other EMEA |  |
Information on reportable segments |  |
Total net revenue | 50.6 | 30.8
Other EMEA | Product revenue |  |
Information on reportable segments |  |
Total net revenue | 42.7 | 24.7
Other EMEA | Service revenue |  |
Information on reportable segments |  |
Total net revenue | 7.9 | 6.1
Total EMEA |  |
Information on reportable segments |  |
Total net revenue | 76.3 | 59.1
Total EMEA | Product revenue |  |
Information on reportable segments |  |
Total net revenue | 68.4 | 53.0
Total EMEA | Service revenue |  |
Information on reportable segments |  |
Total net revenue | $ 7.9 | $ 6.1

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