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Real Property Acquisition (Narrative) (Details) - Austin, Texas [Member] - Two-building office complex [Member] $ in Millions		9 Months Ended
	Aug. 04, 2021 USD ($) ft²	Sep. 30, 2022
Asset Acquisition [Line Items]
Asset Acquisition, Consideration Transferred | $	$ 22
Percentage Of Occupancy	25.00%
Percentage Of Currently Leased		60.00%
Net Rentable Area | ft²	90,000

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Percentage Of Occupancy

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Amount of consideration transferred in asset acquisition. Includes, but is not limited to, cash, liability incurred by acquirer, and equity interest issued by acquirer.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 50
-Section 30
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=126928898&loc=d3e9215-128498

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
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-Section 55
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-URI https://asc.fasb.org/extlink&oid=6829253&loc=SL6831962-166255

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
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-Section 25
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-Section 30
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Net rentable area for properties owned.

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