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Loans and Allowance for Credit Losses - CECL Allowance by CECL Allowances by loan portfolio geographical location (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Mortgages receivable, net
Carrying Value	$ 375,220	$ 376,991
% of Portfolio	100.00%	100.00%
New England
Mortgages receivable, net
Carrying Value	$ 158,731	$ 179,421
% of Portfolio	42.30%	47.60%
Mid-Atlantic
Mortgages receivable, net
Carrying Value	$ 40,096	$ 42,304
% of Portfolio	10.70%	11.20%
South
Mortgages receivable, net
Carrying Value	$ 176,393	$ 151,165
% of Portfolio	47.00%	40.10%
West
Mortgages receivable, net
Carrying Value	$ 0	$ 4,101
% of Portfolio	0.00%	1.10%

X

- Definition

It represents the percentage of portfolio in financing receivable.

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 40
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481628/310-20-40-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-2

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- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-5

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