Refers to the number of contracts.

No definition available.

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- Definition

The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Amount awarded from other party in judgment or settlement of litigation.

+ References

No definition available.

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- Definition

Amount of damages awarded to the plaintiff in the legal matter.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
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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

No definition available.

+ Details

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- Definition

Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Adjustment of the mine reclamation or mine shutdown liability account that is made when estimates of future costs are changed.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
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Note 7 - Commitments and Contingencies (Details) $ in Millions		1 Months Ended		6 Months Ended
	Mar. 04, 2022 USD ($)	Jul. 31, 2021 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) contract
Settled Litigation
COMMITMENTS AND CONTINGENCIES
Compensatory damages	$ 1.8		$ 7.7
Award to cover inconvenience and aggravation		$ 25.0
Surety Bond
COMMITMENTS AND CONTINGENCIES
Asset Retirement Obligation				$ 21.9
Reclamation bonding requirements				0.3
Take-or-pay Purchase Commitments
COMMITMENTS AND CONTINGENCIES
Commitments				$ 8.2
Number of contracts \| contract				3