Properties And Equipment (Summary Of Investment And Development Property) (Details) - USD ($) $ in Thousands |
Dec. 31, 2019 |
Dec. 31, 2018 |
---|---|---|
Property, Plant and Equipment [Line Items] | ||
Investment and development properties, net | $ 114,024 | $ 86,804 |
Land [Member] | ||
Property, Plant and Equipment [Line Items] | ||
Investment and development properties, net | 24,446 | 24,371 |
Building [Member] | ||
Property, Plant and Equipment [Line Items] | ||
Investment and development properties, net | 1,900 | 1,900 |
Construction-In-Progress (including capitalized interest) [Member] | ||
Property, Plant and Equipment [Line Items] | ||
Investment and development properties, net | $ 87,678 | $ 60,533 |