Goodwill and Other Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 29, 2012
Goodwill [Abstract]
Goodwill	$ 1,093,891	$ 1,093,891
Accumulated adjustments	(6,462)	(6,462)
Goodwill, net	1,087,429	1,087,429
Other intangible assets [Abstract]
Other intangible assets, gross	499,223	499,223
Accumulated amortization	(139,930)	(82,452)
Other intangible assets, net	359,293	416,771
Other Intangible Assets Aggregate Amortization Expense [Abstract]
Aggregate amortization expense	57,478	58,031	12,002
Aggregate amortization expense for the five succeeding fiscal years [Abstract]
2015	56,767
2016	53,971
2017	52,686
2018	52,326
2019	51,303
Customer Relationships [Member]
Other intangible assets [Abstract]
Other intangible assets, gross	466,959	466,959
Accumulated amortization	(122,411)	(71,382)
Non-compete Agreements [Member]
Other intangible assets [Abstract]
Other intangible assets, gross	26,815	26,815
Accumulated amortization	(13,962)	(8,138)
Tradenames [Member]
Other intangible assets [Abstract]
Other intangible assets, gross	3,482	3,482
Accumulated amortization	(2,573)	(2,040)
Other [Member]
Other intangible assets [Abstract]
Other intangible assets, gross	1,967	1,967
Accumulated amortization	(984)	(892)
Propane [Member]
Goodwill [Abstract]
Goodwill	1,075,091	1,075,091
Accumulated adjustments	0	0
Goodwill, net	1,075,091	1,075,091
Fuel oil and refined fuels [Member]
Goodwill [Abstract]
Goodwill	10,900	10,900
Accumulated adjustments	(6,462)	(6,462)
Goodwill, net	4,438	4,438
Natural gas and electricity [Member]
Goodwill [Abstract]
Goodwill	7,900	7,900
Accumulated adjustments	0	0
Goodwill, net	$ 7,900	$ 7,900