Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Real Property Acquisition (Narrative) (Details) - Austin, Texas [Member]		12 Months Ended
	Aug. 04, 2021 USD ($) ft²	Dec. 31, 2022 USD ($) ft²	Dec. 31, 2021 USD ($)
Asset Acquisition [Line Items]
Net Rentable Area \| ft²		6,000
Building [Member]
Asset Acquisition [Line Items]
Purchase price \| $	$ 22,000,000.0
Percentage Of Occupancy		25.00%
Percentage Of Currently Leased		60.00%
Net Rentable Area \| ft²	90,000
Accrued property taxes \| $		$ 433,000	$ 450,000