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Acquisitions - Additional Information (Details)										3 Months Ended			6 Months Ended	7 Months Ended	9 Months Ended		12 Months Ended
	Aug. 31, 2016 USD ($) Boe plant	Jun. 22, 2016 USD ($) restaurant tract property store	Mar. 31, 2016 USD ($) shares	Dec. 16, 2015 USD ($) property	Aug. 21, 2015	Aug. 10, 2015 USD ($) store	Jul. 31, 2015 USD ($) shares	Apr. 01, 2015 USD ($)	Aug. 31, 2014 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Jun. 30, 2015 USD ($)	Jul. 31, 2015 USD ($)	Sep. 30, 2016 USD ($) shares	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)	Jan. 01, 2016	Aug. 29, 2014
Business Acquisition [Line Items]
Percentage of membership interest acquired					100.00%										100.00%
Percentage of membership interest acquired																			50.10%
Business acquisition total purchase price																	$ 24,600,000
Common units issued in connection with acquisitions (in shares) | shares															5,710,922
Revenues										$ 4,137,317,000	$ 4,906,772,000				$ 11,391,797,000	$ 14,383,708,000
Net income (loss)										$ 44,551,000	$ 27,544,000				$ 178,697,000	57,278,000
Acquisition increased goodwill																	$ 10,100,000
Senior Notes [Member] | 6.375% Senior Notes Due 2023 [Member]
Business Acquisition [Line Items]
Interest rate, stated percentage								6.375%		6.375%					6.375%
Sunoco LLC and Sunoco Retail LLC [Member]
Business Acquisition [Line Items]
Percentage of membership interest acquired								31.58%
Percentage of membership interest acquired								50.10%
Business acquisition total purchase price								$ 775,000,000
Equity interests issued and issuable								$ 40,800,000
Acquisition of business															$ 2,200,000,000	775,000,000
Goodwill									$ 0
Sunoco LLC and Sunoco Retail LLC [Member] | Senior Notes [Member] | 6.375% Senior Notes Due 2023 [Member]
Business Acquisition [Line Items]
Interest rate, stated percentage								6.375%
Sunoco Retail LLC [Member]
Business Acquisition [Line Items]
Percentage of membership interest acquired			100.00%															100.00%
Revenues													$ 1,100,000,000
Net income (loss)																5,700,000
ETP Dropdown [Member]
Business Acquisition [Line Items]
Percentage of membership interest acquired																		68.42%
Acquisition of business			$ 2,200,000,000
Limited partners' capital account, units issued (in shares) | shares			5,710,922
Sunmarks, LLC [Member]
Business Acquisition [Line Items]
Percentage of membership interest acquired																		100.00%
Sunoco LLC [Member]
Business Acquisition [Line Items]
Percentage of membership interest acquired								31.58%
Percentage of membership interest acquired			49.90%					50.10%
Revenues												$ 2,400,000,000
Net income (loss)												$ 24,500,000
Susser [Member]
Business Acquisition [Line Items]
Percentage of membership interest acquired							100.00%
Percentage of membership interest acquired							100.00%							100.00%
Acquisition of business							$ 966,900,000								$ 0	$ 966,855,000
Revenues														$ 2,600,000,000
Net income														$ 18,100,000
Susser [Member] | Common Units [Member]
Business Acquisition [Line Items]
Partners' capital account, converted units | shares							79,308
Partners' capital account, units issued upon acquisition | shares							79,308
Susser [Member] | Subordinated Units-Affiliated [Member]
Business Acquisition [Line Items]
Partners' capital account, converted units | shares							10,939,436
Susser [Member] | Class B Units [Member]
Business Acquisition [Line Items]
Common units issued in connection with acquisitions (in shares) | shares							21,978,980
Susser [Member] | Class A Units [Member] | Common Units [Member]
Business Acquisition [Line Items]
Partners' capital account, units issued upon acquisition | shares							79,308
Susser [Member] | Class A Units [Member] | Subordinated Units-Affiliated [Member]
Business Acquisition [Line Items]
Partners' capital account, units issued upon acquisition | shares							10,939,436
Emerge Energy Services LP [Member]
Business Acquisition [Line Items]
Business acquisition total purchase price	$ 171,500,000
Number of transmix processing plants acquired | plant	2
Barrels per day able to be processed by transmix plants (over 10,000 barrels) | Boe	10,000
Barrels of storage capacity of transmix plants (over 800,000) | Boe	800,000
Kolkhorst Petroleum Inc. [Member]
Business Acquisition [Line Items]
Number of fee properties | property		5
Number of leased properties | property		9
Acquisition increased goodwill		$ 8,700,000
Kolkhorst Petroleum Inc. [Member] | Texas [Member]
Business Acquisition [Line Items]
Business acquisition total purchase price		$ 37,900,000
Number of stores | store		14
Valentine Stores, Inc. [Member]
Business Acquisition [Line Items]
Number of fee properties | property		19
Number of company-operated locations | store		18
Acquisition increased goodwill		$ 35,200,000
Number of tracts of land | tract		3
Valentine Stores, Inc. [Member] | Tim Hortons Restaurant [Member]
Business Acquisition [Line Items]
Number of leased properties | property		1
Number of restaurants acquired | restaurant		1
Valentine Stores, Inc. [Member] | New York [Member]
Business Acquisition [Line Items]
Business acquisition total purchase price		$ 76,200,000
Number of stores | store		18
Alta East, Inc Wholesale Motor Fuel Distribution [Member]
Business Acquisition [Line Items]
Business acquisition total purchase price				$ 57,100,000
Number of fee properties | property				24
Number of leased properties | property				6
Acquisition increased goodwill				$ 14,600,000
Number of fee and leased properties non-operating surplus locations | property				2
Aziz Convenience Stores, L.L.C [Member]
Business Acquisition [Line Items]
Business acquisition total purchase price						$ 41,600,000
Number of stores | store						27
Acquisition increased goodwill						$ 4,300,000

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