Income Taxes - Schedule of Components of Tax Provision (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Apr. 20, 2018	Apr. 14, 2017	Apr. 20, 2018	Apr. 14, 2017
Income Tax Disclosure [Abstract]
Tax provision at estimated annual effective rate			$ 690
Tax on sale of property- Chicago land parcel			1,640
Deferred income tax adjustment - OCI			2,529
Deferred income tax adjustment - Non-OCI			671
Provision for income tax	$ 1,808	$ 714	$ 5,530	$ 1,690

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 9
-Subparagraph (a),(b)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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