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Real Property Acquisition (Components Of Other Income, Net) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Business Acquisition [Line Items] |  |  |  |
Other income, net | $ 275 |  | $ 538 |
Building [Member] | Austin, Texas [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Lease revenue | 586 |  | 1,160 |
Property depreciation and amortization | (311) |  | (622) |
Other income, net | $ 275 |  | $ 538 |

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