Summary of Significant Accounting Policies Revenue Recognition (Details) - Allowance for Sales Returns [Member] - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2018	Jun. 24, 2017	Jun. 25, 2016	Jun. 27, 2015
Valuation and Qualifying Accounts Disclosure [Line Items]
Returns and allowances reserve	$ 140,115	$ 46,575	$ 31,461	$ 17,412
Estimated returns and allowances against revenues	659,023	143,950	79,956
Valuation Allowances and Reserves, Deductions	$ 565,483	$ 128,836	$ 65,907

Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-09)
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

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Amount of increase in the allowances and reserves, which consist of the valuation and qualifying accounts that are either netted against the cost of an asset or that reflect a liability established to represent expected future costs, from charges to costs and expenses.

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Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively.

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