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Revenue from Contract with Customer (Tables) | 9 Months Ended
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Sep. 30, 2020
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 nine months ended September 30, 2020 and 2019:
| For the Three Months Ended September 30, |  | For the Nine Months Ended September 30,
| 2020 |  | 2019 |  | 2020 |  | 2019
| (Dollars in thousands)
Graphite Electrodes - Three-to-five-year take-or-pay contracts | $ | 250,011 |  |  | $ | 334,097 |  |  | $ | 771,400 |  |  | $ | 1,107,742 |
Graphite Electrodes - Short-term agreements and spot sales | 32,303 |  |  | 67,704 |  |  | 93,232 |  |  | 191,249 |
By-products and other | 4,673 |  |  | 18,996 |  |  | 21,719 |  |  | 77,190 |
Total Revenues | $ | 286,987 |  |  | $ | 420,797 |  |  | $ | 886,351 |  |  | $ | 1,376,181 |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction | As a result of recent contract modifications, as well as on-going discussions with many of our customers, the remaining revenue associated with our long-term sales agreements is expected to be approximately as follows:
| 2021 |  | 2022 |  | 2023 through 2024
| (Dollars in millions)
Estimated LTA revenue | $925-$1,025 |  | $910-$1,010 |  | $350-$450(1)
(1) Includes expected termination fees from a few customers that have failed to meet certain obligations under their long-term agreements ("LTAs").

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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://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&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=121604090&loc=SL49130556-203045 + Details
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