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Derivatives (Pre-tax Gains and Losses) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Commodity | Cost of sales and merchandising revenues |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gains (losses) on derivatives instruments recognized in earnings | $ (27,586) | $ (51,059) | $ 25,469 | $ (30,451)
Not Designated as Hedging Instrument | Interest rate contracts | Operating, administrative and general expenses |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gains (losses) on derivatives instruments recognized in earnings | (36) | 521 | (972) | 1,662
Not Designated as Hedging Instrument | Foreign currency contract | Other Income, Net |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gains (losses) on derivatives instruments recognized in earnings | (615) | 372 | (684) | (1,163)
Designated as Hedging Instrument | Interest rate contracts |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Interest rate derivative gains (losses) included in Other Comprehensive Income (Loss) | (3,798) | 159 | (16,547) | 226
Designated as Hedging Instrument | Interest rate contracts | Operating, administrative and general expenses |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Interest rate derivatives gains (losses) included in Interest income (expense) | $ (224) | $ 54 | $ (243) | $ 126

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959 + Details
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- Definition The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 25 -Section 50 -Paragraph 1 -Subparagraph (a)(1),(2) -URI http://asc.fasb.org/extlink&oid=109977999&loc=d3e76258-113986 + Details
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