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Share-Based Compensation - Additional Information (Detail) - USD ($) $ in Millions	Jun. 29, 2019	Jun. 24, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Net cumulative effect, change in amount		$ 25.7
Retained Earnings [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Net cumulative effect, change in amount		24.7
Additional Paid-in Capital [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Net cumulative effect, change in amount		$ 1.0
ASU for Compensation-Stock Compensation [Member] | Retained Earnings [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Net cumulative effect, change in amount	$ 24.7
ASU for Compensation-Stock Compensation [Member] | Additional Paid-in Capital [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Net cumulative effect, change in amount	1.0
Deferred Tax Assets for Research Credit and Alternative Minimum Tax Credit Carryforwards [Member] | ASU for Compensation-Stock Compensation [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Net cumulative effect, change in amount	$ 25.7

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- Definition

Amount of cumulative effect of the change in accounting principle or new accounting pronouncement on retained earnings or other components of equity or net assets in the statement of financial position as of the beginning of the earliest period presented.

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