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Acquired Intangibles - Summary of Life, Gross Carrying Value of Acquired Intangible Assets, and Related Accumulated Amortization (Detail) - USD ($) $ in Millions | 12 Months Ended |
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Jun. 26, 2021 | Jun. 27, 2020
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | $ 544.7 | $ 398.3
Accumulated Amortization | (243.2) | (304.9)
Net Carrying Value | $ 301.5 | 93.4
Weighted Average Life in Years | 5 years 1 month 6 days |
Audio and Video Technology [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | $ 138.6 | 138.6
Accumulated Amortization | (97.6) | (76.5)
Net Carrying Value | $ 41.0 | 62.1
Weighted Average Life in Years | 5 years |
Customer Relationships [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | $ 125.5 | 81.8
Accumulated Amortization | (63.8) | (61.4)
Net Carrying Value | $ 61.7 | 20.4
Weighted Average Life in Years | 4 years 2 months 12 days |
Wireless and Connectivity Technology [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | $ 93.0 |
Accumulated Amortization | (14.2) |
Net Carrying Value | $ 78.8 |
Weighted Average Life in Years | 6 years |
Video Interface Technology [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | $ 82.0 |
Accumulated Amortization | (25.1) |
Net Carrying Value | $ 56.9 |
Weighted Average Life in Years | 3 years |
Display Driver Technology [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | $ 20.4 | 164.0
Accumulated Amortization | (17.5) | (158.2)
Net Carrying Value | $ 2.9 | 5.8
Weighted Average Life in Years | 7 years |
Backlog [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | $ 12.0 |
Accumulated Amortization | (12.0) |
Licensed Technology and Other [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 13.0 | 7.7
Accumulated Amortization | (8.1) | (5.5)
Net Carrying Value | $ 4.9 | 2.2
Weighted Average Life in Years | 4 years 1 month 6 days |
Patents [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | $ 4.4 | 4.4
Accumulated Amortization | (3.2) | (2.6)
Net Carrying Value | $ 1.2 | 1.8
Weighted Average Life in Years | 8 years |
Trade Names [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | $ 4.8 | 1.8
Accumulated Amortization | (1.7) | (0.7)
Net Carrying Value | $ 3.1 | $ 1.1
Weighted Average Life in Years | 5 years 1 month 6 days |
In-Process Research and Development [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | $ 51.0 |
Net Carrying Value | $ 51.0 |

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 928 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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