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Discontinued Operations - Additional Information (Details) - USD ($) shares in Millions, $ in Millions |  | 12 Months Ended
--- | --- | ---
Aug. 01, 2015 | Jul. 01, 2017 | Jul. 02, 2016
Discontinued Operations |  |  |
Stock conversion ratio in distribution | 0.2 |  |
Cash contributions agreed to in spin-off | $ 137.6 |  |
Federal net operating losses utilized | 1,000.0 |  |
Spinoff | Lumentum |  |  |
Discontinued Operations |  |  |
Deferred tax assets | 29.5 |  |
Deferred tax liabilities | 1.0 |  |
Current income tax payables | 3.3 |  |
Income tax receivable | 1.3 |  |
Other long-term liabilities related to uncertain tax positions | $ 0.1 |  |
Income tax (benefit) provision from discontinued operations |  | $ (0.8) | $ 27.8
Cash taxes due at separation |  |  | 6.2
Net income tax provision for discontinued operations related to the income tax intraperiod tax allocation rules |  |  | 19.0
Transaction charges, advisory and consulting fees |  | $ 16.5 | $ 21.4
Lumentum |  |  |
Discontinued Operations |  |  |
Retained ownership percentage | 19.90% |  |
Shares held in investment (in shares) | 11.7 |  |
Minimum holding period for retained interest | 6 months |  |
Maximum holding period for retained interest | 3 years |  |
Lumentum |  |  |
Discontinued Operations |  |  |
Percentage of outstanding shares distributed | 80.10% |  |

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