RECENT ACCOUNTING STANDARDS - Cash Flows (Details) - USD ($) $ in Thousands	Sep. 29, 2018	Jun. 30, 2018	Sep. 30, 2017	Jul. 01, 2017
Accounting Policies [Abstract]
Cash and cash equivalents	$ 337,920	$ 245,688	$ 192,420
Restricted cash	0		268
Total cash, cash equivalents and restricted cash shown in the statement of cash flows	$ 337,920	$ 245,688	$ 192,688	$ 219,987