Leases (Book Value Of Assets Under Operating Leases From Owned Assets) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Property Subject to or Available for Operating Lease [Line Items]
Gross balance	$ 565,062	$ 555,620
Accumulated depreciation	(258,369)	(248,963)
Operating property, net	306,693	306,657
Building And Improvements [Member]
Property Subject to or Available for Operating Lease [Line Items]
Gross balance	141,702	140,028
Accumulated depreciation	(24,442)	(23,923)
Operating property, net	$ 117,260	$ 116,105

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business 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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