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Income Taxes - Tabular Disclosure of Income (Loss) Before Income Tax Between Domestic and Foreign Jurisdictions (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017
Income Loss From Operations Before Provision Benefit For Income Taxes [Line Items]
Income/(loss) before provision for income taxes	$ (20.8)	$ (81.8)	$ 61.3
United States [Member]
Income Loss From Operations Before Provision Benefit For Income Taxes [Line Items]
Income/(loss) before provision for income taxes	(40.6)	(51.1)	(10.1)
Foreign [Member]
Income Loss From Operations Before Provision Benefit For Income Taxes [Line Items]
Income/(loss) before provision for income taxes	$ 19.8	$ (30.7)	$ 71.4

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- Definition

Income loss from operations before provision benefit for income taxes.

+ References

No definition available.

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- Definition

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

+ References

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