Goodwill - Changes in Goodwill (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Jun. 27, 2026 |
Jun. 28, 2025 |
Jun. 29, 2024 |
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| Changes in goodwill | |||
| Balance at the beginning of the period | $ 595.7 | $ 452.9 | |
| Acquisitions | 111.3 | 129.7 | |
| Measurement period adjustment | 0.2 | 0.6 | |
| Currency translation | (6.5) | 12.5 | |
| Balance at the end of the period | 700.7 | 595.7 | |
| Network and Service Enablement | |||
| Changes in goodwill | |||
| Balance at the beginning of the period | 553.5 | 410.7 | |
| Acquisitions | 111.3 | 129.7 | |
| Measurement period adjustment | 0.2 | 0.6 | |
| Currency translation | (6.5) | 12.5 | |
| Balance at the end of the period | 658.5 | 553.5 | |
| Goodwill balance | 1,233.0 | 1,128.0 | $ 985.2 |
| Accumulated impairment losses | 574.5 | 574.5 | 574.5 |
| Optical Security and Performance Products | |||
| Changes in goodwill | |||
| Balance at the beginning of the period | 42.2 | 42.2 | |
| Acquisitions | 0.0 | 0.0 | |
| Measurement period adjustment | 0.0 | ||
| Currency translation | 0.0 | 0.0 | |
| Balance at the end of the period | 42.2 | 42.2 | |
| Goodwill balance | 126.7 | 126.7 | 126.7 |
| Accumulated impairment losses | $ 84.5 | $ 84.5 | $ 84.5 |
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- Definition Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount, before accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Includes amount, before amortization expense and impairment loss, of goodwill for private company. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of accumulated impairment loss for asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase (decrease) from measurement period adjustment of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of increase (decrease) from foreign currency translation and measurement period adjustments of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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