Shareholders' Equity - Additional Information (Details) - USD ($)	9 Months Ended	12 Months Ended
Mar. 25, 2018	Jun. 25, 2017	Jun. 26, 2016
Stockholders Equity Note [Abstract]
Payments of Dividends	$ 0	$ 0	$ 0

Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration