Non-controlling Interests (Schedule of Noncontrolling Interests) (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Jun. 25, 2019	Mar. 25, 2019	Dec. 25, 2018	Jun. 26, 2018	Mar. 27, 2018	Dec. 26, 2017	Jun. 25, 2019
Noncontrolling Interest [Line Items]
Balance at September 25, 2018			$ 3,238				$ 3,238
Income attributable to non-controlling interests							912
Net distributions to unrelated limited partners	$ (367)	$ (408)	(478)	$ (492)	$ (242)	$ (256)	(1,233)
Purchase of non-controlling interest		$ (2,959)					(788)
Balance at June 25, 2019	2,129						2,129
Bad Daddy's [Member]
Noncontrolling Interest [Line Items]
Balance at September 25, 2018			2,861				2,861
Income attributable to non-controlling interests							671
Net distributions to unrelated limited partners							(953)
Purchase of non-controlling interest							(788)
Balance at June 25, 2019	1,791						1,791
Good Times [Member]
Noncontrolling Interest [Line Items]
Balance at September 25, 2018			$ 377				377
Income attributable to non-controlling interests							241
Net distributions to unrelated limited partners							(280)
Purchase of non-controlling interest
Balance at June 25, 2019	$ 338						$ 338