Real Estate - Dispositions (Details) - Disposal Group, Disposed of by Sale, Not Discontinued Operations $ in Thousands	Jul. 23, 2021 USD ($)	Apr. 07, 2021 USD ($)	Jul. 01, 2021 USD ($) a
Burnett Plaza
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales price		$ 137,500
Gain (loss) from sale of property		$ 80
A100 Mill Adjacent Land
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales price			$ 6,400
Area of property | a			0.7
One South Plaza
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales price	$ 271,500
Gain (loss) from sale of property	$ 12,700