Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 01, 2017	Jan. 03, 2016	Jan. 01, 2017	Jan. 03, 2016
Consolidated Statements Of Comprehensive Income [Abstract]
Net income	$ 123,986	$ 121,532	$ 239,108	$ 233,579
Other comprehensive income, net of tax:
Net changes in unrealized losses on available-for-sale securities	(818)	(1,473)	(1,433)	(1,035)
Total comprehensive income	$ 123,168	$ 120,059	$ 237,675	$ 232,544