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Revenue From Contracts with Customers | 6 Months Ended
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Jun. 30, 2019
Revenue from Contract with Customer [Abstract] |
Revenue from Contracts with Customers |
| Revenue from Contracts with Customers
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 |
Effective the first quarter of 2019, the Graphite Electrodes revenue categories include only graphite electrodes manufactured by GrafTech. The revenue category “By-products and Other” now includes re-sales of low-grade electrodes purchased from third party suppliers, which represent a minimal contribution to our profitability. For comparability purposes, the prior period has been recast to conform to this presentation. Contract Balances Receivables, net of allowances for doubtful accounts, were $313.6 million as of June 30, 2019 and $248.3 million as of December 31, 2018. Accounts receivables are recorded when the right to consideration becomes unconditional. Payment terms on invoices range from 30 to 120 days depending on the customary business practices of the jurisdictions in which we do business. Certain short-term and longer-term sales contracts require up-front payments prior to the Company’s fulfillment of any performance obligation. These contract liabilities are recorded as current or long-term deferred revenue, depending on the lag between the pre-payment and the expected delivery of the related products. Additionally, under ASC 606, deferred revenue originates from contracts where the allocation of the transaction price to the performance obligations based on their relative stand-alone selling prices results in the timing of revenue recognition being different from the timing of the invoicing. In this case, deferred revenue is amortized into revenue based on the transaction price allocated to the remaining performance obligations. Current deferred revenue is included in "Other accrued liabilities" and long-term deferred revenue is included in "Other long-term obligations" on the Condensed Consolidated Balance Sheets. The following table provides information about deferred revenue from contracts with customers (in thousands):
| Current deferred revenue |  | Long-Term deferred revenue
| (dollars in thousands)
Balance as of December 31, 2018 | $ | 5,380 |  |  | $ | 7,716 |
Revenue recognized that was included in the deferred revenue balance at the beginning of the period | (1,643 | ) |  | — |
Increases due to cash received, excluding amounts recognized as revenue during the period | 910 |  |  | — |
Foreign currency impact | 4 |  |  | 36 |
Balance as of June 30, 2019 | $ | 4,651 |  |  | $ | 7,752 |
Transaction Price Allocated to the Remaining Performance Obligations 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 |
In addition to the expected remaining revenue to be recognized with the longer-term sales contracts, the Company recorded $773.6 million of revenue pursuant to these contracts in the six months ended June 30, 2019.

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- Definition The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -URI http://asc.fasb.org/topic&trid=49130388 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -URI http://asc.fasb.org/topic&trid=2122369 + Details
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