Real Estate (Property Acquisition Table) (Details) $ in Thousands		Jun. 14, 2021 USD ($) ft²	Jun. 01, 2021 USD ($) ft²	Apr. 30, 2021 USD ($) ft²	Jun. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)
Property Acquisitions
Operating lease right of use assets					$ 92,457	$ 92,248
Operating lease liabilities					$ 74,129	$ 72,441
Chesterbrook
Property Acquisitions
Square footage of real estate property | ft²				90,000
Joint Venture Interest	[1]			80.00%
Gross value of real estate	[2]			$ 32,100
Grossmont Center
Property Acquisitions
Square footage of real estate property | ft²			933,000
Joint Venture Interest	[1]		60.00%
Gross value of real estate	[3]		$ 175,000
Camelback Colonnade
Property Acquisitions
Square footage of real estate property | ft²		642,000
Joint Venture Interest	[1]	98.00%
Gross value of real estate	[4]	$ 162,500
Hilton Village
Property Acquisitions
Square footage of real estate property | ft²		93,000
Joint Venture Interest	[1]	98.00%
Gross value of real estate	[5]	$ 37,500
Operating lease right of use assets		10,400
Above Market Liability		1,300
Operating lease liabilities		11,600
Other Assets | Acquired lease costs | Chesterbrook
Property Acquisitions
Above market leases				1,900
Other Assets | Acquired lease costs | Grossmont Center
Property Acquisitions
Above market leases			12,300
Other Assets | Acquired lease costs | Camelback Colonnade
Property Acquisitions
Above market leases		11,600
Other Assets | Acquired lease costs | Hilton Village
Property Acquisitions
Above market leases		2,700
Other Assets | Above market leases | Chesterbrook
Property Acquisitions
Above market leases				600
Other Assets | Above market leases | Grossmont Center
Property Acquisitions
Above market leases			2,600
Other Assets | Above market leases | Hilton Village
Property Acquisitions
Above market leases		1,100
Other Liabilities | Chesterbrook
Property Acquisitions
Below market leases				$ 8,000
Other Liabilities | Grossmont Center
Property Acquisitions
Below market leases			$ 14,700
Other Liabilities | Camelback Colonnade
Property Acquisitions
Below market leases		28,300
Other Liabilities | Hilton Village
Property Acquisitions
Below market leases		$ 3,600

[1] (1)These acquisitions were completed through newly formed joint ventures, for which we own the controlling interest listed above, and therefore, these properties are consolidated in our financial statements.

[2] Approximately $1.9 million and $0.6 million of net assets acquired were allocated to other assets for "acquired lease costs" and "above market leases," respectively, and $8.0 million of net assets acquired were allocated to other liabilities for "below market leases."

[3] Approximately $12.3 million and $2.6 million of net assets acquired were allocated to other assets for "acquired lease costs" and "above market leases," respectively, and $14.7 million of net assets acquired were allocated to other liabilities for "below market leases."

[4] Approximately $11.6 million of net assets acquired were allocated to other assets for "acquired lease costs" and $28.3 million were allocated to other liabilities for "below market leases."

[5] The land is controlled under a long-term ground lease that expires on December 31, 2076, for which we have recorded a $10.4 million "operating lease right of use asset" (net of a $1.3 million above market liability) and an $11.6 million "operating lease liability." Approximately $2.7 million and $1.1 million of net assets acquired were allocated to other assets for "acquired lease costs" and "above market leases," respectively, and $3.6 million were allocated to other liabilities for "below market leases."