The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2420-110228

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

Leases - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Leases - Narrative (Details) - USD ($) $ in Thousands	Oct. 02, 2020	Oct. 02, 2020	Sep. 27, 2019	Sep. 28, 2018
Lessee, Lease, Description [Line Items]
Impairment of long-lived assets		$ 162,238	$ 0	$ 0
SG&A Expense
Lessee, Lease, Description [Line Items]
Impairment of long-lived assets	$ 162,000
Right-of-Use Lease Asset
Lessee, Lease, Description [Line Items]
Impairment of long-lived assets		127,000
Other Long-Lived Assets
Lessee, Lease, Description [Line Items]
Impairment of long-lived assets		$ 35,000