Investment in Real Property - Schedule of carrying value of owned real estate (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) Loan	Dec. 31, 2021 USD ($) Loan
Real Estate [Line Items]
Investment in real property held for use, net	$ 63,382	$ 15,536
Investment in real property held for sale, net	24,516	52,531
Real Estate Investment Property, Net, Total	$ 87,898	$ 68,067
Number of Loans | Loan	11	9
Condos
Real Estate [Line Items]
Real Estate Investment Property, Net, Total	$ 0	$ 28,441
Offices
Real Estate [Line Items]
Real Estate Investment Property, Net, Total	15,414	19,388
Townhomes
Real Estate [Line Items]
Real Estate Investment Property, Net, Total	6,712	9,281
Single Family Housing
Real Estate [Line Items]
Real Estate Investment Property, Net, Total	8,538	4,134
Retail
Real Estate [Line Items]
Real Estate Investment Property, Net, Total	0	3,811
Residential Lots
Real Estate [Line Items]
Real Estate Investment Property, Net, Total	2,293	3,012
Real Estate Held-for-sale One [Member]
Real Estate [Line Items]
Investment in real property held for sale, net	$ 24,516	$ 52,531
Number of Loans | Loan	7	5
Real Estate Held-for-sale Two [Member]
Real Estate [Line Items]
Investment in real property held for use, net	$ 63,382	$ 15,536
Number of Loans | Loan	4	4
Senior Housing [Member]
Real Estate [Line Items]
Real Estate Investment Property, Net, Total	$ 49,917	$ 0
Apartments
Real Estate [Line Items]
Real Estate Investment Property, Net, Total	$ 5,024	$ 0