Distributions of Available Cash - Additional Information (Details)	9 Months Ended
	Jun. 24, 2017 $ / shares
Distributions Made To Members Or Limited Partners [Abstract]
Distributions to its partners	45 days
Declaration date of quarterly distribution	Jul. 20, 2017
Distributions paid (in dollars per unit)	$ 0.8875
Common Unit distribution on an annualized basis (in dollars per unit)	$ 3.55
Distribution date of quarterly distribution	Aug. 08, 2017
Date of record of quarterly distribution	Aug. 01, 2017