CONDENSED CONSOLIDATED STATEMENTS OF PARTNERS' CAPITAL (unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Unitholders [Member]	Accumulated Other Comprehensive (Loss) [Member]
Balance, beginning of period at Sep. 24, 2022	$ 497,530	$ 510,126	$ (12,596)
Balance (in units) at Sep. 24, 2022		62,987
Net income	45,394	$ 45,394
Other comprehensive income	164		164
Partnership distributions	(20,471)	(20,471)
Common Units issued under Restricted Unit Plans	(2,732)	$ (2,732)
Common Units issued under Restricted Unit Plans (in units)		499
Compensation costs recognized under Restricted Unit Plans	2,471	$ 2,471
Balance, end of period at Dec. 24, 2022	522,356	$ 534,788	(12,432)
Balance (in units) at Dec. 24, 2022		63,486
Balance, beginning of period at Sep. 30, 2023	546,356	$ 557,023	(10,667)
Balance (in units) at Sep. 30, 2023		63,521
Net income	24,454	$ 24,454
Other comprehensive income	169		169
Partnership distributions	(20,645)	(20,645)
Common Units issued under Restricted Unit Plans	(3,091)	$ (3,091)
Common Units issued under Restricted Unit Plans (in units)		494
Compensation costs recognized under Restricted Unit Plans	2,645	$ 2,645
Balance, end of period at Dec. 30, 2023	$ 549,888	$ 560,386	$ (10,498)
Balance (in units) at Dec. 30, 2023		64,015