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Restructuring - Summary of Restructuring Plans (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Jun. 29, 2024 | Jul. 01, 2023 | Jul. 02, 2022
Summary of various restructuring plans |  |  |
Restructuring and related charges (benefits) | $ 13.6 | $ 12.1 | $ (0.1)
Fiscal Year 2024 Restructuring Plan |  |  |
Summary of various restructuring plans |  |  |
Accrual balance at the beginning of the period | 0.0 |  |
Restructuring and related charges (benefits) | 14.8 |  |
Cash Settlements | (0.2) |  |
Accrual balance at the end of the period | 14.6 | 0.0 |
Fiscal Year 2024 Restructuring Plan | Network and Service Enablement |  |  |
Summary of various restructuring plans |  |  |
Accrual balance at the beginning of the period | 0.0 |  |
Restructuring and related charges (benefits) | 13.6 |  |
Cash Settlements | (0.2) |  |
Accrual balance at the end of the period | 13.4 | 0.0 |
Fiscal Year 2024 Restructuring Plan | Optical Security and Performance Products |  |  |
Summary of various restructuring plans |  |  |
Accrual balance at the beginning of the period | 0.0 |  |
Restructuring and related charges (benefits) | 1.2 |  |
Cash Settlements | 0.0 |  |
Accrual balance at the end of the period | 1.2 | 0.0 |
Fiscal 2023 Plan |  |  |
Summary of various restructuring plans |  |  |
Accrual balance at the beginning of the period | 5.8 |  |
Restructuring and related charges (benefits) | 13.6 |  |
Cash Settlements | (4.5) |  |
Accrual balance at the end of the period | 14.9 | 5.8 |
Fiscal 2023 Plan Phase I |  |  |
Summary of various restructuring plans |  |  |
Accrual balance at the beginning of the period | 4.1 |  |
Restructuring and related charges (benefits) | (0.9) |  |
Cash Settlements | (3.2) |  |
Accrual balance at the end of the period | 0.0 | 4.1 |
Fiscal 2023 Plan Phase I | Network and Service Enablement |  |  |
Summary of various restructuring plans |  |  |
Accrual balance at the beginning of the period | 3.5 |  |
Restructuring and related charges (benefits) | (0.9) |  |
Cash Settlements | (2.6) |  |
Accrual balance at the end of the period | 0.0 | 3.5 |
Fiscal 2023 Plan Phase I | Optical Security and Performance Products |  |  |
Summary of various restructuring plans |  |  |
Accrual balance at the beginning of the period | 0.6 |  |
Restructuring and related charges (benefits) | 0.0 |  |
Cash Settlements | (0.6) |  |
Accrual balance at the end of the period | 0.0 | 0.6 |
Fiscal 2023 Plan Phase II |  |  |
Summary of various restructuring plans |  |  |
Accrual balance at the beginning of the period | 1.7 |  |
Restructuring and related charges (benefits) | (0.3) |  |
Cash Settlements | (1.1) |  |
Accrual balance at the end of the period | 0.3 | 1.7 |
Fiscal 2023 Plan Phase II | Network and Service Enablement |  |  |
Summary of various restructuring plans |  |  |
Accrual balance at the beginning of the period | 1.7 |  |
Restructuring and related charges (benefits) | (0.3) |  |
Cash Settlements | (1.1) |  |
Accrual balance at the end of the period | $ 0.3 | $ 1.7 |

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