v3.10.0.1

DERIVATIVES AND RISK MANAGEMENT ACTIVITIES Narrative (Details) bbl in Millions |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2018 USD ($) bbl | Dec. 31, 2017 USD ($) bbl | Apr. 30, 2018 USD ($) | Sep. 30, 2018 USD ($) | Sep. 30, 2018 USD ($) | Apr. 15, 2018
Derivative [Line Items] |  |  |  |  |  |
Cash received from termination of interest rate swaps |  |  | $ 8,000,000 |  |  |
Number of forecasted interest payments probable not to occur |  |  |  | 1 |  |
Loss due to forecasted interest payment probable not to occur |  |  |  | $ 300,000 |  |
Margin deposit | $ 400,000 | $ 300,000 |  | 400,000 | $ 400,000 |
Interest rate swaps | Cash Flow Hedges |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Interest rate swaps interest rate received |  |  |  |  | receive a rate based on the three-month USD LIBOR |
Notional amount of forward-starting interest rate swaps | $ 250,000,000 | $ 600,000,000 |  | $ 250,000,000 | $ 250,000,000 |
Notional amount of forward-starting interest rate swaps terminated |  |  | $ 350,000,000 |  |  |
Commodity contracts |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Notional amount of commodity contracts, volume (in barrels) | bbl | 0.2 | 1.2 |  |  |  |
Logistics Notes due 2018 [Member] |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Stated interest rate |  |  |  |  |  | 7.65%

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + 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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- Definition Aggregate notional amount that was terminated specified by the derivative(s). + References No definition available. + Details
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- Definition Interest rate received under the terms of the interest rate swap agreements. + References No definition available. + Details
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- Definition Number of forecasted interest payments probable not to occur + References No definition available. + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition The amount of net gain (loss) reclassified into earnings when interest rate cash flow hedge is discontinued because it is probable that the original forecasted transactions will not occur by the end of the original period or an additional two month time period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=112277219&loc=d3e80748-113994 + Details
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- Definition The amount of cash or securities placed with a broker or counterparty as security for a trading or derivatives securities position which was partially obtained with funds provided by the broker dealer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.8,17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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