Financial Instruments and Fair Value Measurements - Schedule of Other Financial Instruments Carrying Values and Fair values (Details) - USD ($) $ in Thousands		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes receivable, net		$ 153,886	$ 100,882	$ 114,943	$ 111,775
Mortgage and Other Notes Payable		1,812,238	1,707,844
Unsecured notes payable and Unsecured line of credit		559,040	420,858
Level 3 | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes receivable, net	[1]	153,886	100,882
Mortgage and Other Notes Payable	[1]	1,143,805	1,153,760
Investment in non-traded equity securities	[2]	3,656	1,726
Level 3 | Estimated Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes receivable, net	[1]	154,093	101,567
Mortgage and Other Notes Payable	[1]	1,125,571	1,134,560
Investment in non-traded equity securities	[2]	4,062	1,456
Level 2 | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Unsecured notes payable and Unsecured line of credit	[3]	675,933	559,514
Level 2 | Estimated Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Unsecured notes payable and Unsecured line of credit	[3]	$ 680,171	$ 544,532

[1] The Company determined the estimated fair value of these financial instruments using a discounted cash flow model with rates that take into account the credit of the borrower or tenant, where applicable, and interest rate risk. The Company also considered the value of the underlying collateral, taking into account the quality of the collateral, the credit quality of the borrower, the time until maturity and the current market interest rate environment

[2] Represents the Operating Partnership’s cost-method investment in Fifth Wall (Note 5)

[3] The Company determined the estimated fair value of the unsecured notes payable and unsecured line of credit using quoted market prices in an open market with limited trading volume where available. In cases where there was no trading volume, the Company determined the estimated fair value using a discounted cash flow model using a rate that reflects the average yield of similar market participants.