Real Estate - Dispositions (Details) ft² in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022 property	Dec. 31, 2021 USD ($) ft²	Jul. 31, 2021 USD ($) a
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties sold | property	3
Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on Sale, Net		$ 90,100
Disposal Group, Disposed of by Sale, Not Discontinued Operations | 816 Congress | Austin, TX
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of property | ft²		435
Sales Price		$ 174,000
Gain on Sale, Net		$ 77,200
Disposal Group, Disposed of by Sale, Not Discontinued Operations | One South at the Plaza | Charlotte, NC
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of property | ft²		891
Sales Price		$ 271,500
Gain on Sale, Net		$ 12,700
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Burnett Plaza | Fort Worth
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of property | ft²		1,000
Sales Price		$ 137,500
Gain on Sale, Net		$ 200
Disposal Group, Disposed of by Sale, Not Discontinued Operations | 100 Mill - Adjacent Land
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of property | a			0.7
Sales Price			$ 6,400