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Real Property (Components Of Other Income, Net) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Business Acquisition [Line Items] |  |  |  |
Other income, net | $ 203 | $ 275 | $ 393 | $ 538
Buildings [Member] | Austin, Texas [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Lease revenue | 559 | 586 | 1,116 | 1,160
Property operating expenses | (356) | (311) | (723) | (622)
Other income, net | $ 203 | $ 275 | $ 393 | $ 538

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