Fair Value Measurement- Fair Value of Liabilities Measured on a Recurring Basis (Details) - Recurring - USD ($) $ in Thousands |
Jun. 30, 2018 |
Dec. 31, 2017 |
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| Assets: | ||
| Total assets | $ 1,319 | $ 233 |
| Liabilities: | ||
| Total liabilities | 2,480 | 3,529 |
| Level 2 | Interest rate swap instruments | ||
| Assets: | ||
| Total assets | 1,298 | 233 |
| Liabilities: | ||
| Total liabilities | 2,414 | 3,529 |
| Level 2 | Commodity swap instruments | ||
| Assets: | ||
| Total assets | 21 | 0 |
| Liabilities: | ||
| Total liabilities | $ 66 | $ 0 |
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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. 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 liability or 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. Includes liabilities 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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