Goodwill and Other Intangible Assets - Summary of Other Intangible Assets (Details) - USD ($) $ in Thousands		Jun. 25, 2016	Sep. 26, 2015
Finite Lived Intangible Assets [Line Items]
Other intangible assets, gross		$ 529,145	$ 505,093
Accumulated amortization		(238,493)	(197,304)
Other intangible assets, net		290,652	307,789
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Other intangible assets, gross	[1],[2]	492,656	471,829
Accumulated amortization		(212,165)	(173,823)
Non-compete Agreements [Member]
Finite Lived Intangible Assets [Line Items]
Other intangible assets, gross	[1]	31,040	27,815
Accumulated amortization		(21,744)	(19,337)
Tradenames [Member]
Finite Lived Intangible Assets [Line Items]
Other intangible assets, gross		3,482	3,482
Accumulated amortization		(3,441)	(3,069)
Other [Member]
Finite Lived Intangible Assets [Line Items]
Other intangible assets, gross		1,967	1,967
Accumulated amortization		$ (1,143)	$ (1,075)

[1] Reflects the impact from the Propane USA acquisition (Note 3).

[2] Reflects the impact from the disposition of certain assets and operations in a non-strategic market of the propane segment (Note 3).