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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Millions				3 Months Ended
	Nov. 08, 2024	Oct. 21, 2024	Oct. 09, 2024	Mar. 31, 2025	Dec. 31, 2010
Accrued Royalties				$ 5.0
Additional royalty due to disallowed deductions				4.7	$ 4.7
Estimated penalties				0.3
Decommissioning obligations				1.4
Increase (decrease) in decommissioning obligation accrual				(0.2)
Accrual for decommissioning obligations				$ 21.4
The Sureties
Surety bonds issued	$ 183.7
Philadelphia Indemnity Insurance Company
Surety bonds issued	71.0
The Sureties and PIIC
Surety bonds issued	254.7
Surety Bonds
Surety bonds issued		$ 111.0	$ 55.0
Cancelled bonds			13.1
Cash collateral		$ 23.0	$ 55.0
Surety Bonds \| Applied litigation
Surety bonds issued	11.3
Cash collateral	11.3
Unpaid in loss contingency	0.4
Surety Bonds \| U.S. Fire Litigation
Surety bonds issued	93.5
Cash collateral	$ 93.5