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Organization and Summary of Significant Accounting Policies - Changes in Fair Value of Level 3 Financial Assets (Detail) - USD ($) $ in Millions | 12 Months Ended
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Jun. 30, 2018 | Jun. 24, 2017
Fair Value Disclosures [Abstract] |  |
Beginning balance | $ 1.5 | $ 8.6
Net unrealized loss | 0.0 | (1.5)
Impairment recovery on redeemed investments | 0.0 | 1.9
Redemptions | 0.0 | (7.5)
Ending balance | $ 1.5 | $ 1.5

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- Definition Fair value measurement with unobservable inputs reconciliation recurring basis impairment recovery on redeemed investments + References No definition available. + Details
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- Definition Amount of gain (loss) recognized in other comprehensive income (loss) for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1a) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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- Definition Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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