Related Party Transactions - Additional Information (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Mar. 25, 2018	Jun. 25, 2017	Jun. 26, 2016
Director [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Threshold for Individual Disclosure	$ 120	$ 120	$ 120

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_RelatedPartyTransactionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration