Loans Held for Investment - Additional Information (Details) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2025 USD ($) Loan	Dec. 31, 2024 USD ($) Loan
Financing Receivable, Allowance for Credit Loss [Line Items]
Accrued interest receivable on loans held for investment	$ 3,800	$ 4,100
Percentage of specific reserve required	100.00%
Non-accruing loans	$ 14,516	12,989
Specific reserve on non accruing loans	905	400
Modifications made to borrowers	$ 25	$ 311
Number of loans modified | Loan	1	2
Payment deferrals
Financing Receivable, Allowance for Credit Loss [Line Items]
Number of loans modified | Loan	10
Active short-term payment deferrals of principal	$ 1,000