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Fair Value Measurements (Schedule Of Carrying Values And Estimated Fair Values Of Debt Instruments) (Details) RM in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2025 USD ($)	Dec. 31, 2025 MYR (RM)	Dec. 31, 2024 USD ($)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
LONG-TERM NOTES RECEIVABLE FROM ARO	$ 345.0		$ 296.2
Paid-in-Kind Interest	24.1	RM 24.1	24.6
Reported Value Measurement [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
LONG-TERM NOTES RECEIVABLE FROM ARO	345.0		296.2
Reported Value Measurement [Member] | Senior Secured Second Lien Notes | Senior Notes [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Long-term Debt	1,086.0		1,082.7
Estimate of Fair Value Measurement [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
LONG-TERM NOTES RECEIVABLE FROM ARO	403.8		378.3
Estimate of Fair Value Measurement [Member] | Senior Secured Second Lien Notes | Senior Notes [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Long-term Debt	$ 1,144.9		$ 1,112.7

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