Loans Receivable - Schedule of Reserve for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Reserve for loan losses, beginning of period	$ 2,830	$ 8,280
Provision for expected loan losses	6,504	2,088
Expected loan losses (recoveries) related to loans sold or repaid	0	(7,538)
Reserve for loan losses, end of period	9,334	2,830
Secured Loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Reserve for loan losses, beginning of period	2,830	8,280
Provision for expected loan losses	5,400	2,088
Expected loan losses (recoveries) related to loans sold or repaid	0	(7,538)
Reserve for loan losses, end of period	8,230	2,830
Mezzanine Loans and Other
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Reserve for loan losses, beginning of period	0	0
Provision for expected loan losses	1,104	0
Expected loan losses (recoveries) related to loans sold or repaid	0	0
Reserve for loan losses, end of period	$ 1,104	$ 0

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

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

+ Details

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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- Definition

Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

+ Details

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Balance Type:	debit
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- Definition

Amount excluding accrued interest, of decrease from sale and reclassification to held-for-sale of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 11
-Subparagraph (i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-11

+ Details

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Period Type:	duration

- Details

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- Details

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