Business Combination (Business Combination, Goodwill Segment Allocation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 02, 2022	Oct. 03, 2021
Business Acquisition [Line Items]
Goodwill, acquired during period		$ 613
Del Taco
Business Acquisition [Line Items]
Goodwill, acquired during period		0
Jack in the Box
Business Acquisition [Line Items]
Goodwill, acquired during period		$ 613
Del Taco
Business Acquisition [Line Items]
Goodwill, acquired during period	$ 319,722
Del Taco | Del Taco
Business Acquisition [Line Items]
Goodwill, acquired during period	230,722
Del Taco | Jack in the Box
Business Acquisition [Line Items]
Goodwill, acquired during period	$ 89,000