Related-Party Transactions - Wholesale Motor Fuel Sales and Real Estate Rentals (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Related Party Transaction [Line Items]
Revenue from Related Parties	$ 80,667	$ 122,383	$ 242,655	$ 350,454
Rental income	22,921	21,149	66,519	64,331
DMS [Member] \| Fuel Sales Transaction [Member]
Related Party Transaction [Line Items]
Revenue from Related Parties	35,308	68,987	110,008	201,283
DMS [Member] \| Rental Income [Member]
Related Party Transaction [Line Items]
Rental income	$ 1,485	$ 3,078	$ 4,871	$ 10,768

The total amount of revenue recognized for the period from operating leases, including minimum lease revenue, contingent revenue, percentage revenue and sublease revenue.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 25
-Paragraph 1
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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07.1(c))
-URI http://asc.fasb.org/extlink&oid=114873854&loc=SL114874292-224272

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