XML 62 R41.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Zinc Zero Cost Collar (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2022
Zinc Zero Cost Collar |
Schedule of realized and unrealized losses related to Zinc Zero Cost Collar | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the three months ended September 30, | ​ | For the nine months ended September 30,
​ | ​ | 2022 | ​ | 2021 | ​ | 2022 | ​ | 2021
​ | ​ | (in thousands) | ​ | (in thousands)
Realized (gain) loss on zinc zero cost collar | ​ | $ | (61) | ​ | $ | 40 | ​ | $ | 2,396 | ​ | $ | 40
Unrealized (gain) loss on zinc zero cost collar | ​ | ​ | (157) | ​ | ​ | 144 | ​ | ​ | (2,276) | ​ | ​ | 144
Total | ​ | $ | (218) | ​ | $ | 184 | ​ | $ | 120 | ​ | $ | 184
​

X
- References No definition available. + Details
Name: | us-gaap_DerivativeInstrumentDetailAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4E -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624181-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959 + Details
Name: | us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration