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Debt And Interest Expense (Credit Facilities) (Narrative) (Details) $ in Millions | 12 Months Ended
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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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