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Debt And Liquidity (2023 Senior Secured Notes) (Details)	12 Months Ended
	Dec. 31, 2024 USD ($)	Dec. 31, 2020
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 1,125,000,000
Debt Instrument, Issue Price	$ 0.97456
Debt Instrument, Event Of Default, Percentage Of Debt Held		30.00%
Secured Debt
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.625%
Debt Instrument, Covenant, Restricted Payments Allowable Pursuant To Certain Baskets, Pro Forma Consolidated First Lien Net Leverage Ratio, Maximum		2.00
Secured Debt | Prior to December 15, 2023
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed	40.00%
Redemption price related to net cash proceeds of certain equity offerings	109.875%
Debt Instrument, Redemption Price, Premium Applicable, Percentage	100.00%
2023 Senior Secured Notes
Debt Instrument [Line Items]
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums	$ 11,400,000
Debt Instrument, Event Of Default, Percentage Of Debt Held	30.00%
2023 Senior Secured Notes | Secured Debt
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 450,000,000
Debt Instrument, Interest Rate, Stated Percentage	9.875%
Debt Instrument, Covenant, Restricted Payments Allowable Pursuant To Certain Baskets, Pro Forma Consolidated First Lien Net Leverage Ratio, Maximum	2.00

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