CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Thousands	Sep. 28, 2018	Jun. 29, 2018	Sep. 29, 2017	Jun. 30, 2017
Reconciliation of cash, cash equivalents and restricted cash
Cash and cash equivalents	$ 219,976	$ 158,102	$ 111,631
Restricted cash in connection with business acquisition (non-current assets)			3,414
Cash, cash equivalents and restricted cash	$ 219,976	$ 161,433	$ 115,045	$ 137,137

Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant