Valuation And Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 30, 2018
Allowance for Doubtful Accounts
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 53,499	$ 48,959	$ 47,272
Charged to Expense (Income)	12,111	10,360	6,033
Deductions	(6,592)	(5,820)	(4,346)
Balance at End of Period	59,018	53,499	48,959
Valuation Allowance, Operating Loss Carryforwards [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	231,463	239,483	241,687
Charged to Expense (Income)	50,018	(5,274)	(4,704)
Charged to Other Accounts	2,240	(2,746)	2,500
Balance at End of Period	$ 283,721	$ 231,463	$ 239,483