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Derivatives - Schedule of Derivatives Fair Value Amounts (Details) - USD ($) $ in Thousands | Mar. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Prepaid Expenses and Other Current Assets |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Cash collateral | $ 3,200 | $ 2,700
Other Noncurrent Assets |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Cash collateral | 7,000 | 7,000
Commodity Contract | Prepaid Expenses and Other Current Assets |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Asset (Liability) | 2,941 | 0
Commodity Contract | Other Noncurrent Assets |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Asset (Liability) | 1,290 | 2,748
Commodity Contract | Other Accrued Liabilities |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Asset (Liability) | (791) | (595)
Interest Rate | Prepaid Expenses and Other Current Assets |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Asset (Liability) | 496 | 161
Interest Rate | Other Noncurrent Assets |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Asset (Liability) | 3,149 | 3,377
Interest Rate | Other Accrued Liabilities |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Asset (Liability) | 0 | (94)
Over the Counter | Embedded Derivative |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Asset (Liability) | $ (9,392) | $ (20,000)

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- Definition Amount of right to receive cash collateral under master netting arrangements offset against derivative liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 + Details
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