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Balance Sheet and Other Details - Interest and Other Income, Net (Details) - USD ($) $ in Millions | 12 Months Ended
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Jun. 30, 2018 | Jul. 01, 2017 | Jul. 02, 2016
Balance Sheet and Other Details |  |  |
Interest income | $ 15.9 | $ 11.1 | $ 5.9
Foreign exchange gains (loss), net | (1.3) | 0.9 | (2.6)
Loss on extinguishment of debt | (5.0) | (1.1) | 0.0
Other income (expense), net | 0.1 | 2.2 | (0.8)
Interest and other income, net | 9.7 | 13.1 | 2.5
Debt Instrument [Line Items] |  |  |
Loss on extinguishment of debt | 5.0 | $ 1.1 | $ 0.0
0.625% Senior Convertible Notes | Convertible Debt |  |  |
Balance Sheet and Other Details |  |  |
Loss on extinguishment of debt | (5.0) |  |
Debt Instrument [Line Items] |  |  |
Loss on extinguishment of debt | $ 5.0 |  |

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