Financing Arrangement - Narrative (Details) ft² in Thousands, $ in Thousands			12 Months Ended
	Jun. 27, 2019 USD ($)	Sep. 30, 2009 ft²	Dec. 31, 2021 USD ($) $ / ft²	Dec. 31, 2020 USD ($) $ / ft²	Dec. 31, 2019 USD ($)
Schedule of Joint Ventures
Terminal capitalization rate			5.75%	5.50%
Discount rate			7.25%	7.00%
Distributions in excess of loan proceeds | $	$ 27,945		$ 0	$ 0	$ 27,945
Chandler Fashion Center
Schedule of Joint Ventures
Mortgage loan | $	$ 256,000
Financing arrangement | Minimum
Schedule of Joint Ventures
Market rent per square foot | $ / ft²			35
Financing arrangement | Maximum
Schedule of Joint Ventures
Market rent per square foot | $ / ft²				105
Financing arrangement | Chandler Fashion Center
Schedule of Joint Ventures
Ownership interest (as a percent)		49.90%
Property area (in square feet) | ft²		1,319
Financing arrangement | Freehold Raceway Mall
Schedule of Joint Ventures
Ownership interest (as a percent)		49.90%
Property area (in square feet) | ft²		1,553