Acquisitions and Dispositions - Dispositions Narrative (Details) - Disposal Group, Disposed of by Sale, Not Discontinued Operations $ in Millions	Mar. 30, 2022 USD ($)	Dec. 22, 2021 USD ($) a building	Sep. 16, 2021 USD ($)	May 07, 2021 USD ($) a
110 North Wacker
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received	$ 208.6
Gain (loss) on disposal	5.0
Transaction costs on sales of investments real estate	$ 17.6
Monarch City
Acquisitions And Dispositions [Abstract]
Area of land sold | a				229
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received				$ 51.4
Area of land sold | a				229
Gain (loss) on disposal				$ 21.3
Transaction costs on sales of investments real estate				$ 1.5
Hotel
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received			$ 252.0
Gain (loss) on disposal			39.1
Transaction costs			2.9
Repayments of debt			$ 132.3
Century Park
Acquisitions And Dispositions [Abstract]
Area of land sold | a		63
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received		$ 25.0
Area of land sold | a		63
Area of real estate property sold | a		1,302,597
Number of buildings | building		17
Gain (loss) on disposal		$ (7.4)
Transaction costs on sales of investments real estate		$ 0.4