Members Capital (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2023	Jun. 24, 2023	Mar. 25, 2023	Sep. 24, 2022	Jun. 25, 2022	Mar. 26, 2022
Beginning balance	$ 237,120	$ 271,322	$ 263,941	$ 258,761	$ 274,437	$ 332,272
Allocation of net income	14,954	14,570	7,381	43,124	50,714	61,047
Ending balance	248,458	237,120	$ 271,322	292,710	258,761	274,437
Class A Units [Member]
Member distributions	(362)	(4,877)		(917)	(6,638)	(11,888)
Class B Units [Member]
Member distributions	$ (3,254)	$ (43,895)		$ (8,258)	$ (59,752)	$ (106,994)