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Income Taxes - Provision for Income Taxes Differs from Federal Statutory Rate (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 27, 2015	Jun. 28, 2014	Jun. 29, 2013
Income Tax Disclosure [Abstract]
Provision at U.S. federal statutory rate	$ 56.1	$ 26.1	$ 35.6
Qualified stock options	2.7	0.9	2.1
Business credits	(4.7)	(2.8)	(3.7)
Foreign tax differential	(4.3)	(19.6)	(16.6)
Remeasurement of unrecognized tax benefits	(0.1)		(15.6)
Non-deductible portion of contingent consideration	(4.7)	21.2
Change in valuation allowance	(0.5)	(0.3)	(0.2)
Nondeductible amortization	2.7	0.9	0.6
Other differences	2.6	1.4	0.6
Provision for income taxes	$ 49.8	$ 27.8	$ 2.8

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to remeasurement of unrecognized tax benefits.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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