Recently Issued Accounting Pronouncements - Additional Information (Detail) - USD ($) $ in Millions	Sep. 28, 2019	Jun. 30, 2019
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Operating lease liabilities	$ 410.9
Operating lease liability, current	80.8
Operating lease liability, noncurrent	330.1
Operating lease, right-of-use asset	$ 409.4
Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Operating lease liabilities		$ 423.8
Operating lease liability, current		82.1
Operating lease liability, noncurrent		341.7
Operating lease, right-of-use asset		423.0
Operating lease liability, deferred rent		11.0
Operating lease, intangible assets		5.3
Operating lease, prepaid rent and other adjustments		$ 4.9