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Share-Based Compensation - Shares Purchased, Weighted Average Purchase Price, Cash Received, and Aggregate Intrinsic Value for ESPP (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Jun. 30, 2018	Jun. 24, 2017	Jun. 25, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares purchased	486,263
Aggregate intrinsic value	$ 9.2
Employee Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares purchased	486,263	302,085	302,781
Weighted average purchase price	$ 32.07	$ 46.74	$ 52.42
Cash received	$ 15.6	$ 14.1	$ 15.8
Aggregate intrinsic value	$ 3.9	$ 2.7	$ 7.0

X

- Definition

The cash inflow associated with the amount received from the stock plan during the period.

+ References

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-Publisher FASB
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-Topic 230
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-Paragraph 14
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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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The weighted average of per share prices paid for shares purchased on the open market for issuance to employees under the plan.

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