Indemnification obligation aggregate amount.

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Indemnification obligation assertion period.

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Number of additional sites.

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Number of business days prior to execution of agreement.

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Number of minimum leasehold interests.

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Number of owned and leased convenience store properties transferred to partnership.

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Number of retail Stores operated.

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Number of third-party wholesale dealer contracts

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Number of volume weighted average trading price business days.

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Number of wholesale fuel distribution.

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Partnership agreement effective date.

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Period for calculation of volume weighted average price.

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Right of termination prior written notice period.

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Warranties and covenants period.

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Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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The method of determining the fair value of the equity interests of the acquirer, including the number of instruments or interests issued or issuable in consideration for the business combination.

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Stated value of common units of ownership issued by a limited liability company (LLC).

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Number of common units issued of limited liability company (LLC).

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Date of record for distribution of cash or unit to limited partner of limited partnership (LP), in CCYY-MM-DD format.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

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Amount of operating lease expense. Excludes sublease income.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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Subsequent Events and Pending Transactions - Additional Information (Details) $ in Thousands					3 Months Ended	12 Months Ended
	Jan. 15, 2020 USD ($) Site Tradingday Retailsite shares	Nov. 19, 2019 Site Property	May 31, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2019	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Subsequent Event [Line Items]
Payment of leasehold interest							$ 485
Lease expense						$ 28,559
CST Fuel Supply Exchange Agreement [Member] \| CST Brands Inc. [Member]
Subsequent Event [Line Items]
Equity method investment, ownership percentage		17.50%
Circle K Stores Inc. [Member]
Subsequent Event [Line Items]
Payment of leasehold interest			$ 500	$ 500
Circle K Stores Inc. [Member] \| CST Fuel Supply Exchange Agreement [Member]
Subsequent Event [Line Items]
Number of owned and leased convenience store properties transferred to partnership \| Property		45
Warranties and covenants period		18 months
Circle K Stores Inc. [Member] \| CST Fuel Supply Exchange Agreement [Member] \| CST Brands Inc. [Member]
Subsequent Event [Line Items]
Ownership interest		100.00%
Subsequent Event [Member] \| Sellers [Member] \| Asset Purchase Agreement [Member] \| Retail and Wholesale Acquisition [Member]
Subsequent Event [Line Items]
Number of retail stores operated \| Retailsite	172
Number of wholesale fuel distribution \| Site	114
Number of third-party wholesale dealer contracts \| Site	55
Number of minimum leasehold interests \| Site	53
Payment of leasehold interest	$ 21,000
Number of newly issued common units	842,891
Number of newly issued common units value	$ 15,000
Period for calculation of VWAP	20 days
Subsequent Event [Member] \| Sellers [Member] \| Asset Purchase Agreement [Member] \| Retail Acquisition [Member]
Subsequent Event [Line Items]
Indemnification obligation assertion period	18 months
Indemnification obligation aggregate amount	$ 7,200
Lessee leasing arrangements, operating leases, term of contract	10 years
Lease expense	$ 6,500
Topper Group Omnibus Agreement [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Partnership agreement effective date	Jan. 01, 2020
Topper Group Omnibus Agreement [Member] \| Subsequent Event [Member] \| Topper Group [Member]
Subsequent Event [Line Items]
Right of termination prior written notice period	180 days
Topper Group Omnibus Agreement [Member] \| Subsequent Event [Member] \| The General Partner [Member]
Subsequent Event [Line Items]
Right of termination prior written notice period	60 days
Equity Restructuring Agreement [Member]
Subsequent Event [Line Items]
Distribution made to limited partner date of record					Feb. 06, 2020
Equity Restructuring Agreement [Member] \| Subsequent Event [Member] \| DM CAP Holdings [Member] \| IDRs [Member]
Subsequent Event [Line Items]
Common unit issued \| shares	2,528,673
Common unit issued value	$ 45,000
Number of volume weighted average trading price business days \| Tradingday	20
Number of business days prior to execution of agreement \| Tradingday	5
Wholesale Fuel Supply Contracts/Rights [Member] \| CST Fuel Supply Exchange Agreement [Member]
Subsequent Event [Line Items]
Number of additional sites \| Site		387