Revenue From Contracts with Customers (Tables)

3 Months Ended

Mar. 31, 2018

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 month period ended March 31, 2018:

	For the Three Months Ended March 31, 2018
	(dollars in thousands)
Graphite Electrodes - Three-to-five-year contracts	$	272,201
Graphite Electrodes - Short-term contracts	167,595
By products	12,103
Total Revenues	$	451,899

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 (in thousands). 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 2018	1,059,955
2019	1,347,005
2020	1,270,684
2021	1,114,294
Thereafter	1,085,725
Total	$	5,877,663