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Derivative Instruments - Balance Sheet Location (Details) bbl in Thousands, $ in Thousands | Sep. 30, 2017 USD ($) bbl | Dec. 31, 2016 USD ($) bbl
--- | --- | ---
Footnote [Abstract] |  |  |
Cash deficit |  | $ (700) | $ (600)
Derivatives not designated as hedging instrument [Member] |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Assets |  | 88 | 9
Liabilities |  | 0 | (82)
Less: Counterparty netting and cash collateral, assets | [1] | 88 | 9
Less: Counterparty netting and cash collateral, liabilities | [1] | 585 | 621
Total net fair value of derivative, assets |  | 0 | 0
Total net fair value of derivative, liabilities |  | $ (585) | $ (703)
Footnote [Abstract] |  |  |
Derivative open contracts (in barrels) | bbl |  | 96 | 93
Derivatives not designated as hedging instrument [Member] | OTC commodity swaps [Member] | Other current assets |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Assets | [2] | $ 88 | $ 9
Liabilities | [2] | $ 0 | $ (82)
[1] | As of September 30, 2017 and December 31, 2016, we had a cash deficit of $0.7 million and $0.6 million, respectively, netted with the net derivative position of our counterparty.
[2] | As of September 30, 2017 and December 31, 2016, we had open derivative contracts representing 96,000 barrels and 93,000 barrels, respectively, of refined petroleum products.

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- Definition Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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