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Revenue From Contracts with Customers (Tables) | 6 Months Ended
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Jun. 30, 2019
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | The following table provides information about disaggregated revenue by type of product and contract for the three and six months ended June 30, 2019 and 2018:
| For the Three Months Ended June 30, |  | For the Six Months Ended June 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
| (Dollars in thousands)
Graphite Electrodes - Three-to-five-year take-or-pay contracts | $ | 377,605 |  |  | $ | 345,246 |  |  | $ | 773,645 |  |  | $ | 617,447 |
Graphite Electrodes - Short-term agreements and spot sales | 76,249 |  |  | 66,764 |  |  | 123,545 |  |  | 210,474 |
By-products and other | 26,536 |  |  | 44,322 |  |  | 58,194 |  |  | 80,310 |
Total Revenues | $ | 480,390 |  |  | $ | 456,332 |  |  | $ | 955,384 |  |  | $ | 908,231 |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction | The following table presents estimated revenues expected to be recognized in the future related to performance obligations that are unsatisfied (or partially unsatisfied) at the end of the reporting period. The estimated revenues do not include contracts with original duration of one year or less.
| Three-to-five-year take-or-pay contracts
| (dollars in thousands) |
Remainder of 2019 | 692,358 |
2020 | 1,392,966 |
2021 | 1,237,952 |
2022 | 1,172,028 |
Thereafter | 29,461 |
Total | $ | 4,524,765 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
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- Definition Tabular disclosure of expected timing for satisfying remaining performance obligation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130556-203045 + Details
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