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Restructuring and Related Charges - Summary of Restructuring Plans (Details) - USD ($) $ in Millions | 12 Months Ended
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Jun. 30, 2018 | Jul. 01, 2017 | Jul. 02, 2016
Summary of various restructuring plans |  |  |
Accrual balance at the beginning of the period | $ 11.0 |  |
Restructuring and related charges | 8.3 | $ 21.6 | $ 10.5
Cash Settlements | (12.5) |  |
Non-cash settlements and other adjustments | 0.7 |  |
Accrual balance at the end of the period | 7.5 | 11.0 |
Trilithic Restructuring Plan |  |  |
Summary of various restructuring plans |  |  |
Accrual balance at the beginning of the period | 0.0 |  |
Restructuring and related charges | 3.3 |  |
Cash Settlements | (0.6) |  |
Non-cash settlements and other adjustments | 0.2 |  |
Accrual balance at the end of the period | 2.9 | 0.0 |
OSP Restructuring Plan |  |  |
Summary of various restructuring plans |  |  |
Accrual balance at the beginning of the period | 0.8 |  |
Restructuring and related charges | 0.1 |  |
Cash Settlements | (0.9) |  |
Non-cash settlements and other adjustments | 0.0 |  |
Accrual balance at the end of the period | 0.0 | 0.8 |
Focused NSE Restructuring Plan |  |  |
Summary of various restructuring plans |  |  |
Accrual balance at the beginning of the period | 4.9 |  |
Restructuring and related charges | 4.4 |  |
Cash Settlements | (7.8) |  |
Non-cash settlements and other adjustments | 0.4 |  |
Accrual balance at the end of the period | 1.9 | 4.9 |
Other Plans |  |  |
Summary of various restructuring plans |  |  |
Accrual balance at the beginning of the period | 0.0 |  |
Restructuring and related charges | 0.5 |  |
Cash Settlements | (0.6) |  |
Non-cash settlements and other adjustments | 0.1 |  |
Accrual balance at the end of the period | 0.0 | 0.0 |
NE, SE, and Shared Service Agile Restructuring Plan |  |  |
Summary of various restructuring plans |  |  |
Accrual balance at the beginning of the period | 0.2 |  |
Restructuring and related charges | (0.1) |  |
Cash Settlements | (0.1) |  |
Non-cash settlements and other adjustments | 0.0 |  |
Accrual balance at the end of the period | 0.0 | 0.2 |
NE and SE Agile Restructuring Plan |  |  |
Summary of various restructuring plans |  |  |
Accrual balance at the beginning of the period | 0.4 |  |
Restructuring and related charges | 0.1 |  |
Cash Settlements | 0.0 |  |
Non-cash settlements and other adjustments | 0.0 |  |
Accrual balance at the end of the period | 0.5 | 0.4 |
NE Product Strategy Restructuring Plan |  |  |
Summary of various restructuring plans |  |  |
Accrual balance at the beginning of the period | 0.9 |  |
Restructuring and related charges | 0.0 |  |
Cash Settlements | (0.5) |  |
Non-cash settlements and other adjustments | 0.0 |  |
Accrual balance at the end of the period | 0.4 | 0.9 |
NE Lease Restructuring Plan |  |  |
Summary of various restructuring plans |  |  |
Accrual balance at the beginning of the period | 2.6 |  |
Restructuring and related charges | 0.0 |  |
Cash Settlements | (1.4) |  |
Non-cash settlements and other adjustments | 0.0 |  |
Accrual balance at the end of the period | 1.2 | 2.6 |
Other Plans Prior to Fiscal 2015 |  |  |
Summary of various restructuring plans |  |  |
Accrual balance at the beginning of the period | 1.2 |  |
Restructuring and related charges | 0.0 |  |
Cash Settlements | (0.6) |  |
Non-cash settlements and other adjustments | 0.0 |  |
Accrual balance at the end of the period | $ 0.6 | $ 1.2 |

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