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Segment Reporting - Narrative (Details)	3 Months Ended
	Mar. 31, 2025
External Customers | Graphite Electrodes | Revenue Benchmark | Customer Concentration Risk
Revenue from External Customer [Line Items]
Concentration Risk, Percentage	91.00%

X

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
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- Definition

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+ References

No definition available.

+ Details

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