Derivative Financial Instruments - Summary of Open Contracts and Closed Contracts (Not yet Settled) Commodity Derivative Contracts (Details) - USD ($) $ in Thousands |
Mar. 31, 2019 |
Dec. 31, 2018 |
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| Derivatives Fair Value [Line Items] | ||
| Prepaid expenses and other assets | $ 16,959 | $ 60,687 |
| Other assets (non-current) | 4,169 | 21,275 |
| Open Contracts and Closed Contracts - Not Yet Settled | ||
| Derivatives Fair Value [Line Items] | ||
| Prepaid expenses and other assets | 16,959 | 60,687 |
| Other assets (non-current) | $ 4,169 | $ 21,275 |
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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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. No definition available.
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