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Amount of financing receivable originated more than five years prior to current fiscal year.

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Amount of financing receivable originated four years prior to current fiscal year.

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Amount of financing receivable originated in current fiscal year.

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Amount of financing receivable originated in fiscal year prior to current fiscal year.

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Amount of financing receivable originated three years prior to current fiscal year.

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Amount of financing receivable originated two years prior to current fiscal year.

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Amount of financing receivable on nonaccrual status.

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Loans Receivable and Other Lending Investments, net (Credit Characteristics for Performing Loans) (Details) $ in Thousands	Dec. 31, 2022 loan	Mar. 31, 2022 USD ($) loan	Dec. 31, 2021 USD ($) loan
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Number of non accrual loans \| loan	1	1	1
Commercial Portfolio Segment
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Total		$ 213,488	$ 212,683
Commercial Portfolio Segment \| Senior mortgages
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Total		200,818	199,608
Loan on non-accrual status		59,600
Commercial Portfolio Segment \| Corporate/Partnership loans
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Total			618
Commercial Portfolio Segment \| Subordinate mortgages
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
Total		12,670	$ 12,457
Commercial Portfolio Segment \| Performing Financial Instruments
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
2022		0
2021		0
2020		0
2019		0
2018		138,350
Prior to 2018		15,496
Total		153,846
Commercial Portfolio Segment \| Performing Financial Instruments \| Senior mortgages
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
2022		0
2021		0
2020		0
2019		0
2018		138,350
Prior to 2018		2,826
Total		141,176
Commercial Portfolio Segment \| 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
2022		0
2021		0
2020		0
2019		0
2018		0
Prior to 2018		0
Total		0
Commercial Portfolio Segment \| 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
2022		0
2021		0
2020		0
2019		0
2018		0
Prior to 2018		0
Total		0
Commercial Portfolio Segment \| 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
2022		0
2021		0
2020		0
2019		0
2018		11,899
Prior to 2018		0
Total		11,899
Commercial Portfolio Segment \| 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
2022		0
2021		0
2020		0
2019		0
2018		52,336
Prior to 2018		0
Total		52,336
Commercial Portfolio Segment \| 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
2022		0
2021		0
2020		0
2019		0
2018		62,912
Prior to 2018		2,826
Total		65,738
Commercial Portfolio Segment \| 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
2022		0
2021		0
2020		0
2019		0
2018		11,203
Prior to 2018		0
Total		11,203
Commercial Portfolio Segment \| 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
2022		0
2021		0
2020		0
2019		0
2018		0
Prior to 2018		0
Total		0
Commercial Portfolio Segment \| 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
2022		0
2021		0
2020		0
2019		0
2018		0
Prior to 2018		0
Total		0
Commercial Portfolio Segment \| 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
2022		0
2021		0
2020		0
2019		0
2018		0
Prior to 2018		0
Total		0
Commercial Portfolio Segment \| Performing Financial Instruments \| Subordinate mortgages
Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating
2022		0
2021		0
2020		0
2019		0
2018		0
Prior to 2018		12,670
Total		12,670
Commercial Portfolio Segment \| 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
2022		0
2021		0
2020		0
2019		0
2018		0
Prior to 2018		0
Total		0
Commercial Portfolio Segment \| 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
2022		0
2021		0
2020		0
2019		0
2018		0
Prior to 2018		0
Total		0
Commercial Portfolio Segment \| 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
2022		0
2021		0
2020		0
2019		0
2018		0
Prior to 2018		0
Total		0
Commercial Portfolio Segment \| 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
2022		0
2021		0
2020		0
2019		0
2018		0
Prior to 2018		0
Total		0
Commercial Portfolio Segment \| 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
2022		0
2021		0
2020		0
2019		0
2018		0
Prior to 2018		12,670
Total		12,670
Commercial Portfolio Segment \| 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
2022		0
2021		0
2020		0
2019		0
2018		0
Prior to 2018		0
Total		0
Commercial Portfolio Segment \| 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
2022		0
2021		0
2020		0
2019		0
2018		0
Prior to 2018		0
Total		0
Commercial Portfolio Segment \| 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
2022		0
2021		0
2020		0
2019		0
2018		0
Prior to 2018		0
Total		0
Commercial Portfolio Segment \| 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
2022		0
2021		0
2020		0
2019		0
2018		0
Prior to 2018		0
Total		$ 0