Basis of Presentation (Details) - USD ($) $ in Thousands	Sep. 29, 2018	Jun. 30, 2018	Sep. 30, 2017	Jul. 01, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Cash and cash equivalents	$ 790,304	$ 552,325	$ 909,203	$ 869,502
Restricted cash	163,067		0
Total cash, cash equivalents and restricted cash shown in the Consolidated Statement of Cash Flows	$ 953,371	$ 715,844	$ 909,203	$ 869,502