Distributions of Available Cash - Quarterly Distributions Per Common Unit Declared and Paid (Details) - $ / shares	3 Months Ended
	Sep. 26, 2015	Jun. 27, 2015	Mar. 28, 2015	Dec. 27, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 29, 2012
Distributions Made To Members Or Limited Partners [Abstract]
Distributions paid (in dollars per unit)	$ 0.8875	$ 0.8875	$ 0.8875	$ 0.8750	$ 0.8750	$ 0.8750	$ 0.8750	$ 0.8750	$ 0.8750	$ 0.8750	$ 0.8750	$ 0.8750
Distributions declared (in dollars per unit)	$ 0.8875	$ 0.8875	$ 0.8875	$ 0.8750	$ 0.8750	$ 0.8750	$ 0.8750	$ 0.8750	$ 0.8750	$ 0.8750	$ 0.8750	$ 0.8750