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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 |
--- | --- | ---
Jun. 30, 2018 | Jun. 24, 2017
Finite-Lived Intangible Assets [Line Items] |  |
Acquired intangibles, Gross Carrying Value | $ 456.1 | $ 282.0
Acquired intangibles, Accumulated Amortization | (236.9) | (181.0)
Acquired intangibles, Net Carrying Value | $ 219.2 | 101.0
Weighted Average Life in Years | 5 years |
Display Driver Technology [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Acquired intangibles, Gross Carrying Value | $ 164.0 | 164.0
Acquired intangibles, Accumulated Amortization | (116.5) | (84.9)
Acquired intangibles, Net Carrying Value | $ 47.5 | 79.1
Weighted Average Life in Years | 5 years 3 months 18 days |
Audio and Video Technology [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Acquired intangibles, Gross Carrying Value | $ 133.9 |
Acquired intangibles, Accumulated Amortization | (22.8) |
Acquired intangibles, Net Carrying Value | $ 111.1 |
Weighted Average Life in Years | 5 years 6 months |
Fingerprint Authentication Technology [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Acquired intangibles, Gross Carrying Value | $ 55.7 | 63.5
Acquired intangibles, Accumulated Amortization | (53.7) | (47.6)
Acquired intangibles, Net Carrying Value | $ 2.0 | 15.9
Weighted Average Life in Years | 4 years |
Customer Relationships [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Acquired intangibles, Gross Carrying Value | $ 81.8 | 48.4
Acquired intangibles, Accumulated Amortization | (38.5) | (46.0)
Acquired intangibles, Net Carrying Value | $ 43.3 | 2.4
Weighted Average Life in Years | 4 years 1 month 6 days |
Licensed Technology and Other [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Acquired intangibles, Gross Carrying Value | $ 9.0 | 1.3
Acquired intangibles, Accumulated Amortization | (3.0) | (1.3)
Acquired intangibles, Net Carrying Value | $ 6.0 |
Weighted Average Life in Years | 4 years 3 months 18 days |
Tradename [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Acquired intangibles, Gross Carrying Value | $ 1.9 |
Acquired intangibles, Accumulated Amortization | (0.2) |
Acquired intangibles, Net Carrying Value | $ 1.7 |
Weighted Average Life in Years | 7 years |
Patents [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Acquired intangibles, Gross Carrying Value | $ 4.6 | 4.8
Acquired intangibles, Accumulated Amortization | (1.7) | (1.2)
Acquired intangibles, Net Carrying Value | $ 2.9 | $ 3.6
Weighted Average Life in Years | 7 years 8 months 12 days |
Backlog [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Acquired intangibles, Gross Carrying Value | $ 0.5 |
Acquired intangibles, Accumulated Amortization | $ (0.5) |
Weighted Average Life in Years | 6 months |
In-Process Research and Development [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Acquired intangibles, Gross Carrying Value | $ 4.7 |
Acquired intangibles, Net Carrying Value | $ 4.7 |

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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://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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- 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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