Other Debt - Additional Information (Details) - USD ($)										1 Months Ended	6 Months Ended	9 Months Ended
	Feb. 05, 2024	Dec. 27, 2023	Dec. 14, 2023	Oct. 12, 2023	Mar. 15, 2022	Jul. 29, 2021	Apr. 16, 2021	Sep. 12, 2018	Jan. 04, 2011	Jan. 29, 2021	Jun. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Debt Instrument [Line Items]
Lines of credit fund maximum percentage of principle balance of mortgage loans											100.00%
Line of credit, maximum capacity											$ 885,000,000		$ 890,530,000
Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, term								3 years
Debt Instrument, effective interest rate											8.80%		9.20%
Agreement entered date											Sep. 12, 2018
Debt instrument, maturity date											Nov. 10, 2025
Line of credit, maximum capacity								$ 50,000,000.0
SOFR | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, floor rate											4.25%
Debt instrument, spread rate											3.61%
2022 Term Loan
Debt Instrument [Line Items]
Interest payments, frequency											six months
Corporate Debt Agreement | 2022 Term Loan
Debt Instrument [Line Items]
Debt instrument, term					5 years
Debt instrument, face amount					$ 215,000,000
Term loans, balance											$ 215,000,000		$ 215,000,000
Debt issuance costs, net											6,100,000
Debt instrument, maturity date					Mar. 15, 2027
Debt instrument, fixed interest rate					7.125%
Corporate Debt Agreement | 2024 Term Loan
Debt Instrument [Line Items]
Debt instrument, term	5 years
Debt instrument, face amount	$ 75,000,000
Term loans, balance											75,000,000
Debt issuance costs, net											$ 6,100,000
Debt instrument, maturity date	Feb. 15, 2029
Debt instrument, fixed interest rate	9.875%
2013 Repurchase Agreement | Secured Debt
Debt Instrument [Line Items]
Debt instrument, spread rate											3.25%
Debt Instrument, effective interest rate											9.30%		9.80%
Agreement entered date											May 17, 2013
Debt instrument, maturity date											Sep. 26, 2024
Line of credit, maximum capacity											$ 300,000,000		$ 300,000,000
2021 Repurchase Agreement
Debt Instrument [Line Items]
Debt Instrument, effective interest rate											9.20%		10.00%
2021 Repurchase Agreement | Secured Debt
Debt Instrument [Line Items]
Agreement entered date										Jan. 29, 2021
Debt instrument, maturity date										May 20, 2025
Line of credit, maximum capacity										$ 200,000,000.0	$ 200,000,000		$ 200,000,000
2021 Repurchase Agreement | Minimum | Secured Debt
Debt Instrument [Line Items]
Debt instrument, spread rate										3.00%
2021 Repurchase Agreement | Maximum | Secured Debt
Debt Instrument [Line Items]
Debt instrument, spread rate										4.00%
2021 Term Repurchase Agreement
Debt Instrument [Line Items]
Debt instrument, spread rate							3.10%
2021 Term Repurchase Agreement | Secured Debt
Debt Instrument [Line Items]
Debt Instrument, effective interest rate											8.70%		8.30%
Agreement entered date							Apr. 16, 2021
Debt instrument, maturity date							Apr. 16, 2026
Line of credit, maximum capacity							$ 100,000,000.0				$ 100,000,000		$ 100,000,000
July 2021 Term Repurchase Agreement
Debt Instrument [Line Items]
Debt instrument, description											one-month American Interbank Offered Rate (“AMERIBOR”)
Agreement entered date						Jul. 29, 2021
Line of credit, maximum capacity											$ 100,000,000.0
Interest rate description											Each loan advance bears interest at one-month American Interbank Offered Rate (“AMERIBOR”) with a 0.5% floor plus 4.50% per annum.
Line of credit , maturity date											Jul. 29, 2024
Line of credit facility, description											The July 2021 Term Repurchase Agreement has a maturity date of July 29, 2024, with an option to extend the term to July 29, 2025. The Company is currently working with the lender on the option to extend the term.
July 2021 Term Repurchase Agreement | Secured Debt
Debt Instrument [Line Items]
Debt Instrument, effective interest rate											10.70%		14.20%
Line of credit, maximum capacity											$ 100,000,000		$ 100,000,000
July 2021 Term Repurchase Agreement | American Interbank Offered Rate [Member]
Debt Instrument [Line Items]
Debt instrument, floor rate											0.50%
July 2021 Term Repurchase Agreement | American Interbank Offered Rate [Member] | Secured Debt
Debt Instrument [Line Items]
Debt instrument, spread rate											4.50%
2023 Repurchase Agreement
Debt Instrument [Line Items]
Debt instrument, maturity date		Dec. 27, 2026
2023 Repurchase Agreement | Secured Debt
Debt Instrument [Line Items]
Debt instrument, face amount		$ 75,000,000
Debt instrument, description		SOFR
Debt Instrument, effective interest rate											9.80%		8.60%
Line of credit, maximum capacity											$ 75,000,000		$ 50,000,000
Line of credit facility, description		bears interest at SOFR plus 3.00%.
2023 Repurchase Agreement | SOFR | Secured Debt
Debt Instrument [Line Items]
Debt instrument, spread rate		3.00%
Facility Agreement
Debt Instrument [Line Items]
Agreement entered date									Jan. 04, 2011
Debt instrument, maturity date									Jul. 31, 2025
Facility Agreement | Secured Debt
Debt Instrument [Line Items]
Debt instrument, description												one-month SOFR
Line of credit, maximum capacity									$ 60,000,000
Facility Agreement | SOFR | Secured Debt
Debt Instrument [Line Items]
Debt instrument, floor rate											0.25%
Debt instrument, spread rate											1.60%
October 2023 Repurchase Agreement | Secured Debt
Debt Instrument [Line Items]
Line of credit, maximum capacity													$ 30,530,000
Short-term Repurchase Agreement | Secured Debt
Debt Instrument [Line Items]
Debt instrument, face amount			$ 10,000,000	$ 9,500,000
Debt instrument, spread rate				7.00%
Agreement entered date				Oct. 12, 2023
Line of credit facility, description				bore interest at 7.0%.
Short-term Repurchase One Agreement | Secured Debt
Debt Instrument [Line Items]
Line of credit facility, description			bore interest at 7.6%,
Short-term Repurchase The Other Agreement | Secured Debt
Debt Instrument [Line Items]
Line of credit facility, description			bore interest at 7.5%.