Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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=123570139&loc=d3e3602-108585

Reference 2: 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=123351718&loc=d3e2420-110228

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

Other Operating Expense (Income), Net (Narrative) (Details) $ in Thousands	12 Months Ended
	Oct. 02, 2022 USD ($) restaurant	Oct. 03, 2021 USD ($)	Sep. 27, 2020 USD ($)
Restructuring Cost and Reserve [Line Items]
Operating restaurant impairment charges	$ 5,927	$ 0	$ 0
Jack in the Box
Restructuring Cost and Reserve [Line Items]
Number of restaurants \| restaurant	9
Sale Of Related Markets
Restructuring Cost and Reserve [Line Items]
Operating restaurant impairment charges	$ 3,200
Early Termination Of Contract
Restructuring Cost and Reserve [Line Items]
Operating restaurant impairment charges	$ 2,700