Summary of Significant Accounting Policies (Detail) - USD ($)	12 Months Ended
	Jun. 25, 2017	Jun. 26, 2016	Jun. 28, 2015
Accounting Policies [Abstract]
Impairments of goodwill	$ 0	$ 0	$ 79,444,000
Indefinite-lived intangible asset impairment charge	0	0	0
Impairment loss on long-lived assets	$ 0	$ 0	$ 9,800,000
Equipment | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	3 years
Equipment | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	5 years
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	5 years
Computer Software | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	3 years
Computer Software | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	5 years
Buildings
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	25 years