Fair Value (Schedule Of Face And Fair Value Of Debt) (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Debt Instrument, Unamortized Discount	$ 9,600	$ 6,800
Face Value	3,918,800	3,488,800
Fair Value	3,677,209	3,315,467
Fixed Rate [Member]
Debt Instrument [Line Items]
Face Value	3,678,800	3,033,800
Fair Value	3,437,209	2,860,467
Variable Rate [Member]
Debt Instrument [Line Items]
Face Value	240,000	455,000
Fair Value	$ 240,000	$ 455,000