Contingent Obligation, Liability And Expense Provision, Amount

No definition available.

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- Definition

Limited Guarantees. Percent

+ References

No definition available.

+ Details

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- Definition

Supply Agreement Performance Bond

+ References

No definition available.

+ Details

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- Definition

Supply Agreement, Performance Bond Outstanding Amount

+ References

No definition available.

+ Details

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- Definition

Surety Agreement, Bond Amount

+ References

No definition available.

+ Details

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- Definition

Cash deposited in a special reserve account for the exclusive benefit of customers pursuant to SEC Regulations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Rule 15c3-3
-Number 240
-Section 15c3-3
-Paragraph e
-Subparagraph (1)
-Publisher SEC

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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.

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- Definition

Amount of cash restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-4

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-8

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(17))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480657/210-10-S50-7

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 5
-SubTopic 210
-Topic 954
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477220/954-210-45-5

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Commitments and Contingencies (Details) - USD ($) $ in Millions	Jun. 30, 2026	Jan. 01, 2026	Dec. 31, 2025
Other Commitments [Line Items]
Restricted cash, long-term	$ 9.3		$ 8.5
Supply agreement performance bond	2.4	$ 4.0
Supply agreement performance bond outstanding amount	0.3
Cash reserve deposit	$ 1.9
Tinuum Group, LLC
Other Commitments [Line Items]
Limited guarantees (as percent)	50.00%
Contingent obligation, liability and expense provision, amount	$ 0.0
Five Forks Mine
Other Commitments [Line Items]
Surety bond amount	7.5
Corbin Facilities
Other Commitments [Line Items]
Surety bond amount	3.0
West Virginia ("Mine 4")
Other Commitments [Line Items]
Surety bond amount	0.7
Restricted cash, long-term	$ 0.4