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Derivative Instruments Balance Sheet Location (Details) (USD $) | Sep. 30, 2014 | Dec. 31, 2013
--- | --- | ---
Derivatives, Fair Value [Line Items] |  |  |  |
Counterparty Netting and Cash Collateral, Assets | $ (352,000) | [1] | $ 0 | [1]
Counterparty Netting and Cash Collateral, Liabilities | (45,000) | [1] | 0 | [1]
Total net fair value of derivative, assets | 565,000 |  | 116,000 |
Total net fair value of derivative, liabilities | 0 |  | 0 |
Footnote [Abstract] |  |  |  |
Cash collateral | 400,000 |  | 0 |
Not Designated as Hedging Instrument [Member] |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Assets | 213,000 |  | 116,000 |
Liabilities | (45,000) |  | 0 |
Footnote [Abstract] |  |  |  |
Derivative open contracts (barrels) | 125,000 |  |  |
Not Designated as Hedging Instrument [Member] | Interest rate derivatives | Other long term assets |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Assets | 45,000 |  | 116,000 |
Liabilities | 0 |  | 0 |
Not Designated as Hedging Instrument [Member] | Commodity derivatives | Other current assets |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Assets | 168,000 | [2] | 0 | [2]
Liabilities | $ (45,000) | [2] | $ 0 | [2]
[1] | As of September 30, 2014, $0.4 million of cash collateral associated with our commodity derivatives has been netted with the derivative positions with each counterparty.
[2] | As of September 30, 2014, we had open derivative contracts representing 125,000 barrels 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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