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Summary of Significant Accounting Policies - Schedule of Notes Receivable (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended	12 Months Ended
	Jun. 30, 2024	Mar. 31, 2023	Sep. 30, 2024	Dec. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, carrying value			$ 123,045
MAXIMUM LOAN COMMITMENT			214,969
Outstanding			184,829
INTEREST RECEIVABLE (OTHER ASSETS)			3,181
ALLOWANCE FOR CREDIT LOSSES			(63,159)	$ (5,196)	$ 0
FAIR VALUE DISCOUNT AND FEES			(3,143)
CARRYING VALUE			121,708
Credit loss reserves		$ 5,200	57,963	$ 5,196
Mezzanine loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
MAXIMUM LOAN COMMITMENT			60,119
Outstanding			60,119
INTEREST RECEIVABLE (OTHER ASSETS)			942
ALLOWANCE FOR CREDIT LOSSES			(51,958)
FAIR VALUE DISCOUNT AND FEES			(3,067)
CARRYING VALUE			6,036
Mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
MAXIMUM LOAN COMMITMENT			154,850
Outstanding			124,710
INTEREST RECEIVABLE (OTHER ASSETS)			2,239
ALLOWANCE FOR CREDIT LOSSES			(11,201)
FAIR VALUE DISCOUNT AND FEES			(76)
CARRYING VALUE			$ 115,672
Poway, CA
Accounts, Notes, Loans and Financing Receivable [Line Items]
INTEREST RATE			5.71%
Financing receivable, carrying value			$ 115,683
Columbus, OH
Accounts, Notes, Loans and Financing Receivable [Line Items]
INTEREST RATE			6.48%
Financing receivable, carrying value			$ 7,362
Texas | Mezzanine loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
INTEREST RATE			8.00%
MAXIMUM LOAN COMMITMENT			$ 54,119
Outstanding			54,119
INTEREST RECEIVABLE (OTHER ASSETS)			906
ALLOWANCE FOR CREDIT LOSSES			(51,958)
FAIR VALUE DISCOUNT AND FEES			(3,067)
CARRYING VALUE			$ 0
Texas | Mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
INTEREST RATE			7.00%
MAXIMUM LOAN COMMITMENT			$ 31,150
Outstanding			31,150
INTEREST RECEIVABLE (OTHER ASSETS)			551
ALLOWANCE FOR CREDIT LOSSES			(11,201)
FAIR VALUE DISCOUNT AND FEES			0
CARRYING VALUE			$ 20,500
Credit loss reserves	$ 11,200
Allowance for credit loss	10,700
Allowance for credit loss, interest	$ 500
Arizona | Mezzanine loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
INTEREST RATE			9.00%
MAXIMUM LOAN COMMITMENT			$ 6,000
Outstanding			6,000
INTEREST RECEIVABLE (OTHER ASSETS)			36
ALLOWANCE FOR CREDIT LOSSES			0
FAIR VALUE DISCOUNT AND FEES			0
CARRYING VALUE			$ 6,036
North Carolina | Mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
INTEREST RATE			8.00%
MAXIMUM LOAN COMMITMENT			$ 6,000
Outstanding			6,000
INTEREST RECEIVABLE (OTHER ASSETS)			1,332
ALLOWANCE FOR CREDIT LOSSES			0
FAIR VALUE DISCOUNT AND FEES			(47)
CARRYING VALUE			$ 7,285
Florida | Mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
INTEREST RATE			6.00%
MAXIMUM LOAN COMMITMENT			$ 65,000
Outstanding			35,721
INTEREST RECEIVABLE (OTHER ASSETS)			179
ALLOWANCE FOR CREDIT LOSSES			0
FAIR VALUE DISCOUNT AND FEES			(29)
CARRYING VALUE			$ 35,871
California | Mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
INTEREST RATE			6.00%
MAXIMUM LOAN COMMITMENT			$ 45,000
Outstanding			45,000
INTEREST RECEIVABLE (OTHER ASSETS)			177
ALLOWANCE FOR CREDIT LOSSES			0
FAIR VALUE DISCOUNT AND FEES			0
CARRYING VALUE			$ 45,177
Florida | Mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
INTEREST RATE			9.00%
MAXIMUM LOAN COMMITMENT			$ 7,700
Outstanding			6,839
INTEREST RECEIVABLE (OTHER ASSETS)			0
ALLOWANCE FOR CREDIT LOSSES			0
FAIR VALUE DISCOUNT AND FEES			0
CARRYING VALUE			$ 6,839

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