Investments in Equity Affiliates - Summary (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Investment in Equity Affiliates
Investment in Equity Affiliates	$ 84,047	$ 89,676
UPB of Loans to Equity Affiliates	1,688
Arbor Residential Investor LLC
Investment in Equity Affiliates
Investment in Equity Affiliates	49,937	65,756
AMAC Holdings III LLC
Investment in Equity Affiliates
Investment in Equity Affiliates	16,389	13,772
Fifth Wall Ventures
Investment in Equity Affiliates
Investment in Equity Affiliates	12,505	5,409
North Vermont Avenue
Investment in Equity Affiliates
Investment in Equity Affiliates	2,446	2,419
Lightstone Value Plus REIT L.P.
Investment in Equity Affiliates
Investment in Equity Affiliates	1,895	1,895
Docsumo Pte. Ltd.
Investment in Equity Affiliates
Investment in Equity Affiliates	450
JT Prime
Investment in Equity Affiliates
Investment in Equity Affiliates	425	$ 425
West Shore Cafe
Investment in Equity Affiliates
UPB of Loans to Equity Affiliates	$ 1,688