Loans Receivable and Other Lending Investments, net - Credit Characteristics for Performing Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Total	$ 36,066	$ 16,816
Senior mortgages
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Total	20,800	2,550
Subordinate mortgages
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Total	15,266	14,266
Performing Financial Instruments
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Current	17,750	2,550
1 Year Prior	3,050	0
2 Years Prior	0	0
3 Years Prior	0	0
4 Years Prior	0	0
5 Years or More Prior	15,266	14,266
Total	36,066	16,816
Performing Financial Instruments | Senior mortgages
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Current	17,750	2,550
1 Year Prior	3,050	0
2 Years Prior	0	0
3 Years Prior	0	0
4 Years Prior	0	0
5 Years or More Prior	0	0
Total	20,800	2,550
Performing Financial Instruments | Senior mortgages | Risk Rating 1.0
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Current	0	0
1 Year Prior	0	0
2 Years Prior	0	0
3 Years Prior	0	0
4 Years Prior	0	0
5 Years or More Prior	0	0
Total	0	0
Performing Financial Instruments | Senior mortgages | Risk Rating 1.5
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Current	0	0
1 Year Prior	0	0
2 Years Prior	0	0
3 Years Prior	0	0
4 Years Prior	0	0
5 Years or More Prior	0	0
Total	0	0
Performing Financial Instruments | Senior mortgages | Risk Rating 2.0
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Current	0	0
1 Year Prior	0	0
2 Years Prior	0	0
3 Years Prior	0	0
4 Years Prior	0	0
5 Years or More Prior	0	0
Total	0	0
Performing Financial Instruments | Senior mortgages | Risk Rating 2.5
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Current	0	0
1 Year Prior	0	0
2 Years Prior	0	0
3 Years Prior	0	0
4 Years Prior	0	0
5 Years or More Prior	0	0
Total	0	0
Performing Financial Instruments | Senior mortgages | Risk Rating 3.0
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Current	17,750	2,550
1 Year Prior	3,050	0
2 Years Prior	0	0
3 Years Prior	0	0
4 Years Prior	0	0
5 Years or More Prior	0	0
Total	20,800	2,550
Performing Financial Instruments | Senior mortgages | Risk Rating 3.5
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Current	0	0
1 Year Prior	0	0
2 Years Prior	0	0
3 Years Prior	0	0
4 Years Prior	0	0
5 Years or More Prior	0	0
Total	0	0
Performing Financial Instruments | Senior mortgages | Risk Rating 4.0
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Current	0	0
1 Year Prior	0	0
2 Years Prior	0	0
3 Years Prior	0	0
4 Years Prior	0	0
5 Years or More Prior	0	0
Total	0	0
Performing Financial Instruments | Senior mortgages | Risk Rating 4.5
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Current	0	0
1 Year Prior	0	0
2 Years Prior	0	0
3 Years Prior	0	0
4 Years Prior	0	0
5 Years or More Prior	0	0
Total	0	0
Performing Financial Instruments | Senior mortgages | Risk Rating 5.0
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Current	0	0
1 Year Prior	0	0
2 Years Prior	0	0
3 Years Prior	0	0
4 Years Prior	0	0
5 Years or More Prior	0	0
Total	0	0
Performing Financial Instruments | Subordinate mortgages
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Current	0	0
1 Year Prior	0	0
2 Years Prior	0	0
3 Years Prior	0	0
4 Years Prior	0	0
5 Years or More Prior	15,266	14,266
Total	15,266	14,266
Performing Financial Instruments | Subordinate mortgages | Risk Rating 1.0
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Current	0	0
1 Year Prior	0	0
2 Years Prior	0	0
3 Years Prior	0	0
4 Years Prior	0	0
5 Years or More Prior	0	0
Total	0	0
Performing Financial Instruments | Subordinate mortgages | Risk Rating 1.5
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Current	0	0
1 Year Prior	0	0
2 Years Prior	0	0
3 Years Prior	0	0
4 Years Prior	0	0
5 Years or More Prior	0	0
Total	0	0
Performing Financial Instruments | Subordinate mortgages | Risk Rating 2.0
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Current	0	0
1 Year Prior	0	0
2 Years Prior	0	0
3 Years Prior	0	0
4 Years Prior	0	0
5 Years or More Prior	0	0
Total	0	0
Performing Financial Instruments | Subordinate mortgages | Risk Rating 2.5
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Current	0	0
1 Year Prior	0	0
2 Years Prior	0	0
3 Years Prior	0	0
4 Years Prior	0	0
5 Years or More Prior	0	0
Total	0	0
Performing Financial Instruments | Subordinate mortgages | Risk Rating 3.0
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Current	0	0
1 Year Prior	0	0
2 Years Prior	0	0
3 Years Prior	0	0
4 Years Prior	0	0
5 Years or More Prior	15,266	14,266
Total	15,266	14,266
Performing Financial Instruments | Subordinate mortgages | Risk Rating 3.5
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Current	0	0
1 Year Prior	0	0
2 Years Prior	0	0
3 Years Prior	0	0
4 Years Prior	0	0
5 Years or More Prior	0	0
Total	0	0
Performing Financial Instruments | Subordinate mortgages | Risk Rating 4.0
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Current	0	0
1 Year Prior	0	0
2 Years Prior	0	0
3 Years Prior	0	0
4 Years Prior	0	0
5 Years or More Prior	0	0
Total	0	0
Performing Financial Instruments | Subordinate mortgages | Risk Rating 4.5
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Current	0	0
1 Year Prior	0	0
2 Years Prior	0	0
3 Years Prior	0	0
4 Years Prior	0	0
5 Years or More Prior	0	0
Total	0	0
Performing Financial Instruments | Subordinate mortgages | Risk Rating 5.0
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Current	0	0
1 Year Prior	0	0
2 Years Prior	0	0
3 Years Prior	0	0
4 Years Prior	0	0
5 Years or More Prior	0	0
Total	$ 0	$ 0