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REVENUE - Narrative (Details) - Concentrate Metal Sales Agreement oz in Thousands, lb in Thousands, $ in Millions		3 Months Ended
	Mar. 31, 2023 lb oz $ / Ounce $ / lb	Mar. 31, 2023 USD ($) $ / Ounce $ / lb	Mar. 31, 2022 USD ($)
Disaggregation of Revenue [Line Items]
Embedded derivative, increase (decrease) of value | $		$ 7.5	$ 4.2
Silver
Disaggregation of Revenue [Line Items]
Notional ounce/pound | oz	4,540
Average price per ounce/pound | $ / Ounce	21.93	21.93
Zinc
Disaggregation of Revenue [Line Items]
Notional ounce/pound | lb	4,870
Average price per ounce/pound | $ / lb	1.39	1.39
Lead
Disaggregation of Revenue [Line Items]
Notional ounce/pound | lb	23,060
Average price per ounce/pound | $ / lb	0.93	0.93

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- Definition

The average forward price on the group of price risk forward or futures contracts, such as gas futures contracts.

+ References

No definition available.

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- Definition

Nominal mass used to calculate payments on a derivative instrument.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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- Definition

Net Increase or Decrease in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 15
-URI https://asc.fasb.org/subtopic&trid=2229187

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