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Debt And Interest Expense (Credit Facilities) (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($)
Debt Instrument [Line Items]
Borrowing capacity of senior unsecured revolving credit facility	$ 200.0
Credit facility, maturity date	Dec. 06, 2028
Aggregate increase of commitment amount available	$ 150.0
Maximum [Member]
Debt Instrument [Line Items]
Leverage ratio	4.0

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