Commitments and Contingencies (Details) - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2024	Dec. 31, 2023
HELOCs
Loss Contingencies [Line Items]
Commitments to fund future advances	$ 2,800,000	$ 2,800,000	$ 0
Unfunded Loan Commitment
Loss Contingencies [Line Items]
Loan purchase obligation	8,000,000	$ 8,000,000	0
Obligation to Repurchase Loans
Loss Contingencies [Line Items]
Loss contingency, ownership loan facilitated term		3 days
Loan purchase obligation	66,800,000	$ 66,800,000	36,600,000
Maximum estimate of potential loss	11,042,100,000	11,042,100,000	$ 12,208,100,000
Actual payments	$ 0	$ 4,900,000