Summary of Significant Accounting Policies Revenue Recognition (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017	Jun. 25, 2016
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Returns and allowances reserve	$ 100,489	$ 0
Estimated returns and allowances against revenues	568,550
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Returns and allowances reserve		140,115	$ 46,575	$ 31,461
Estimated returns and allowances against revenues	0	659,023	143,950
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	$ 0	$ 565,483	$ 128,836