XML 22 R10.htm IDEA: XBRL DOCUMENT v3.25.4

ASSETS HELD FOR SALE	4 Months Ended
	Jan. 18, 2026
Summary Of Refranchisings, Franchisee Development And Acquisitions [Abstract]
ASSETS HELD FOR SALE	ASSETS HELD FOR SALE Assets held for sale — Assets classified as held for sale on our condensed consolidated balance sheets as of January 18, 2026 and September 28, 2025 have carrying amounts of $16.4 million and $621.0 million, respectively. In the current year, these amounts relate to operating restaurant properties which we intend to sell to franchisees and/or sell and leaseback with a third party, and closed restaurant properties which we are marketing for sale. Of the balance as of September 28, 2025, $602.7 million relates to Del Taco which is presented as held for sale as of September 28, 2025. Refer to Note 4, Discontinued Operations, for additional information on assets and liabilities held for sale.

X

- Definition

Summary of refranchisings, franchisee development and acquisitions.

+ References

No definition available.

+ Details

Name:	jack_SummaryOfRefranchisingsFranchiseeDevelopmentAndAcquisitionsAbstract
Namespace Prefix:	jack_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Summary of Refranchisings, Franchisee Development and Acquisitions.

+ References

No definition available.

+ Details

Name:	jack_SummaryOfRefranchisingsFranchiseeDevelopmentAndAcquisitionsTextBlockTextBlock
Namespace Prefix:	jack_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration