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Amount Of Expected Reimbursement By The Government, Percent

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Environmental Loss Contingency Statement Of Financial Position Extensible Enumeration Not Disclosed Flag

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Expected Contribution From Government

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Number of sites being investigated by the EPA associated with Crucible environmental matters.

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Number Of Facilities

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Portion of the environmental site which is subject to remediation

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- Definition

As determined by a Focused Feasibility Study (FFS), the estimated present value cost necessary to conduct the environmental remediation activities proposed by the FFS.

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The number of other potentially responsible parties that are participating in the cooperation parties group.

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Number of sites subject to various environmental remediation activities.

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Site Contingency, Number Of Sites Subject To Remediation Activities, Active Operations

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Site Contingency, Number Of Sites Subject To Remediation Activities, Addition

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Site Contingency, Number Of Sites Subject To Remediation Activities, Cost Less Than 500K

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Site Contingency, Number Of Sites Subject To Remediation Activities, One Or More Subsidiaries Conducted Business But No Longer Do

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Site Contingency, Number Of Sites Subject To Remediation Activities, Remaining

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- Definition

As determined by a Remedial Investigation Feasibility Study (RI/FS), the estimated present value cost necessary to conduct the environmental remediation activities proposed by the RI/FS

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- Definition

Site Contingency, Sites Subject To Remediation Activities, Cost Per Site, Maximum Expected Cost

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- Definition

Total costs accrued as of the balance sheet date for environmental loss contingencies.

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Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Aggregate carrying amount of the estimated litigation liability for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs.

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- Definition

Amount of loss contingency liability.

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- Definition

Amount of cash outflow reducing loss contingency liability.

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- Definition

Number of pending claims pertaining to a loss contingency.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Best estimate of the reasonably possible loss exposure in excess of the amount accrued for environmental loss contingencies at an individual site.

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Commitments and Contingencies - Additional Information (Details)					1 Months Ended	6 Months Ended
	Apr. 14, 2021 USD ($) mi	Jun. 30, 2018 party	Mar. 03, 2016 USD ($)	Apr. 11, 2014 USD ($) mi	Sep. 30, 2022 USD ($)	Jun. 30, 2025 USD ($) site party mine mi	Dec. 31, 2024 USD ($)	Jun. 04, 2024 claim	Nov. 30, 2022 site facility	Oct. 18, 2021	Oct. 31, 2016 USD ($)	Apr. 30, 2015 USD ($)
Site Contingency
Number of sites subject to remediation (sites) \| site						21
Number of sites, active operations (sites) \| site						1
Number of sites expected to cost less than 500K (sites) \| site						11
Expected future cost of remediation or investigation (less than)						$ 500,000
Number of sites subsidiaries formally conducted business but no longer do \| site						20
Environmental loss accrual						$ 38,700,000	$ 40,700,000
Environmental						$ 8,600,000
Environmental loss contingency statement of financial position extensible enumeration not disclosed flag						Consolidated Balance Sheets
Loss accrual						$ 16,100,000
Lower Passaic River Study Area
Site Contingency
Portion of site subject to remediation (miles) \| mi				8
Number of other potentially responsible parties \| party		120				70
Estimate of cost												$ 726,000,000
Estimate low end											$ 165,000,000
Lower Passaic River Study Area \| Minimum
Site Contingency
Site contingency, loss exposure in excess of accrual best estimate			$ 1,380,000,000	$ 953,000,000
Lower Passaic River Study Area \| Maximum
Site Contingency
Site contingency, loss exposure in excess of accrual best estimate			$ 1,730,000,000
Upper Nine Miles of the River
Site Contingency
Portion of site subject to remediation (miles) \| mi	9
Site contingency, loss exposure in excess of accrual best estimate	$ 441,000,000
Lower Eight Miles of River
Site Contingency
Environmental loss accrual						$ 700,000
Settlement payment					$ 5,900,000
Arizona Uranium Mines
Site Contingency
Environmental loss accrual						$ 11,600,000
Investigative sites notice from EPA \| mine						8
Percentage of expenses reimbursable by the U.S.										35.00%
Future contributions from U.S.						$ 3,800,000
Thorofare, New Jersey
Site Contingency
Number of sites, active operations (sites) \| site									1
Number of facilities (facilities) \| facility									2
GGB (ISRA) Investigation and Cleanup
Site Contingency
Environmental loss accrual						2,400,000
Water Valley, Mississippi
Site Contingency
Environmental loss accrual						7,900,000
Number of pending claims \| claim								8
Litigation reserve						$ 0
Number of sites subject to remediation, addition (sites) \| site						4
Number of sites subject to remediation, remaining (sites) \| site						17
Related Party \| Lower Passaic River Study Area
Site Contingency
Portion of site subject to remediation (miles) \| mi						17
Related Party \| Crucible Steel Corporation
Site Contingency
Portion of site subject to remediation (miles) \| mi						17