Leases (Book Value Of Assets Under Operating Leases From Owned Assets) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Property Subject to or Available for Operating Lease [Line Items]
Gross balance	$ 514,648	$ 546,440
Accumulated depreciation	(253,034)	(259,488)
Operating property, net	261,614	286,952
Building And Improvements [Member]
Property Subject to or Available for Operating Lease [Line Items]
Gross balance	132,000	136,749
Accumulated depreciation	(27,234)	(26,148)
Operating property, net	$ 104,766	$ 110,601

Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Reference 2: http://www.xbrl.org/2003/role/exampleRef
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