Notes Receivable and Current Expected Credit Losses - Schedule of Interest on the Mezzanine Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Nov. 30, 2018
Notes Receivable
Interest income	$ 16,978	$ 18,457	$ 19,841
Mezzanine Loan
Notes Receivable
Interest income	16,461	18,026	19,783
Other notes receivable
Notes Receivable
Interest income	517	431	58
The Residences at Annapolis Junction | Annapolis Junction Apartments Owner LLC
Notes Receivable
Loan modification fee				$ 5,000
The Residences at Annapolis Junction | Mezzanine Loan
Notes Receivable
Interest income	0	0	2,468
Interest income, exit fees			1,500
City Park 2 | Mezzanine Loan
Notes Receivable
Interest income	1,038	0	0
Delray Beach Plaza | Mezzanine Loan
Notes Receivable
Interest income	0	0	489
Solis Gainesville II | Mezzanine Loan
Notes Receivable
Interest income	205	0	0
Nexton Square | Mezzanine Loan
Notes Receivable
Interest income	0	0	1,177
Interlock Commercial | Mezzanine Loan
Notes Receivable
Interest income	9,870	12,769	12,267
Interest income, exit fees	1,100	2,000	2,300
Nexton Multifamily
Notes Receivable
Prepayment premium	2,700
Nexton Multifamily | Mezzanine Loan
Notes Receivable
Interest income	5,348	1,252	0
Solis Apartments at Interlock
Notes Receivable
Prepayment premium		2,400
Solis Apartments at Interlock | Mezzanine Loan
Notes Receivable
Interest income	$ 0	$ 4,005	$ 3,382