Goodwill and Other Intangible Assets - Carrying Values of Goodwill Assigned to Partnership's Operating Segments (Details) - USD ($) $ in Thousands	Dec. 29, 2018	Sep. 29, 2018
Goodwill [Line Items]
Goodwill	$ 1,099,932	$ 1,099,932
Accumulated adjustments	(6,462)	(6,462)
Goodwill, net	1,093,470	1,093,470
Propane [Member]
Goodwill [Line Items]
Goodwill	1,081,132	1,081,132
Accumulated adjustments	0	0
Goodwill, net	1,081,132	1,081,132
Fuel Oil and Refined Fuels [Member]
Goodwill [Line Items]
Goodwill	10,900	10,900
Accumulated adjustments	(6,462)	(6,462)
Goodwill, net	4,438	4,438
Natural Gas and Electricity [Member]
Goodwill [Line Items]
Goodwill	7,900	7,900
Accumulated adjustments	0	0
Goodwill, net	$ 7,900	$ 7,900

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
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- Definition

Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
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-Publisher FASB
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Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267

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+ References

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