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Revenue From Contracts With Customers (Tables)

12 Months Ended

Dec. 31, 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 Year Ended December 31,
			2020						2019						2018
			(Dollars in thousands)
Graphite Electrodes - Long-term agreements			$	1,069,772					$	1,437,354					$	1,341,557
Graphite Electrodes - Short-term agreements and spot sales			123,845						260,979						395,928
By-products and other			30,744						92,460						158,425
Total Revenues			$	1,224,361					$	1,790,793					$	1,895,910

Contract with Customer, Asset and Liability

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
Increases due to cash received			7,961						—
Revenue recognized			(4,678)						—
Revision of estimates			—						(694)
Reclassification between long-term and current			3,042						(3,042)
Foreign currency impact			71						(122)
Balance as of December 31, 2019			11,776						3,858
Increases due to cash received			10,110						—
Revenue recognized			(6,270)						—
Reclassification between long-term and current			(1,804)						1,804
Foreign currency impact			(756)						—
Balance as of December 31, 2020			$	13,056					$	5,662

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 LTAs 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 LTAs.

X

- Definition

Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045

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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

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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

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