The amount of decreased earning per share diluted.

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- Definition

The amount of estimated earning per share diluted.

+ References

No definition available.

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- Definition

Amount of restricted customer deposit for performance bid bond, classified as current.

+ References

No definition available.

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- Definition

The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Amount, after accumulated amortization, of debt issuance costs classified as current. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount of interest capitalized during the period.

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Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Carrying amount at the balance sheet date of mineral rights, or rights to extract a mineral from the earth or to receive payment in the form of a royalty for the extraction of minerals, net of amortization.

+ References

No definition available.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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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.

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No definition available.

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Accounting Policies (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Nov. 30, 2020
Statutory Accounting Practices
Restricted Cash Current Customer Deposits	$ 1.1	$ 1.1
Interest costs capitalized	0.0	18.6
Mineral rights	239.4	259.8
Deferred finance costs, net	1.6	1.2
Deferred finance costs, current	$ 0.6	$ 0.7
Debt instrument, face amount			$ 155.3
Interest rate			5.25%
Paid-in Capital
Statutory Accounting Practices
Cash on convertible notes			$ 39.2
Retained Earnings
Statutory Accounting Practices
Cash on convertible notes			$ 6.7
ASU 2020-06
Statutory Accounting Practices
Diluted earnings per share	$ 65.28
Decreased by diluted earnings per share	$ 1.40
Minimum
Statutory Accounting Practices
Operating lease, remaining lease terms	1 year
Maximum
Statutory Accounting Practices
Operating lease, remaining lease terms	6 years
Exploration and production equipment \| Minimum
Statutory Accounting Practices
Estimated useful life	1 year
Exploration and production equipment \| Maximum
Statutory Accounting Practices
Estimated useful life	16 years
Building and building improvements \| Minimum
Statutory Accounting Practices
Estimated useful life	3 years
Building and building improvements \| Maximum
Statutory Accounting Practices
Estimated useful life	20 years
Mining properties and mineral rights \| Minimum
Statutory Accounting Practices
Operating lease, remaining lease terms	10 years
Mining properties and mineral rights \| Maximum
Statutory Accounting Practices
Operating lease, remaining lease terms	50 years