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Fair Value Measurements (Details) - Level 2 $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2025 USD ($)	Dec. 31, 2024 USD ($)
Loan Receivables | Market Approach Valuation Technique | Minimum
Financial Instruments Not Measured at Fair Value
Market interest rate percentage	0.0586
Loan Receivables | Market Approach Valuation Technique | Maximum
Financial Instruments Not Measured at Fair Value
Market interest rate percentage	0.0607
Junior subordinated notes | Market Approach Valuation Technique
Financial Instruments Not Measured at Fair Value
Market interest rate percentage	0.0760	0.0794
Mortgages payable | Market Approach Valuation Technique | Minimum
Financial Instruments Not Measured at Fair Value
Market interest rate percentage	0.0483	0.0538
Mortgages payable | Market Approach Valuation Technique | Maximum
Financial Instruments Not Measured at Fair Value
Market interest rate percentage	0.0646	0.0661
Carrying Value | Loan Receivables
Financial Instruments Not Measured at Fair Value
Estimated fair value lower than carrying value	$ 204
Carrying Value | Junior subordinated notes
Financial Instruments Not Measured at Fair Value
Estimated fair value lower than carrying value	(3,503)	$ (3,578)
Carrying Value | Mortgages payable
Financial Instruments Not Measured at Fair Value
Estimated fair value lower than carrying value	$ (29,666)	$ (39,277)

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