Short-Term Debt - Principal only stripped MBS (Details) $ in Thousands	Dec. 31, 2024 USD ($)
Bank of America, N.A. | Principal-only stripped MBS
Mortgage loans sold under agreement to repurchase
Amount at risk	$ 1,788
JP Morgan Chase Bank, N.A | Principal-only stripped MBS
Mortgage loans sold under agreement to repurchase
Amount at risk	21,739
Wells Fargo Bank, N.A. | Principal-only stripped MBS
Mortgage loans sold under agreement to repurchase
Amount at risk	18,238
Santander US Capital Markets LLC | Principal-only stripped MBS
Mortgage loans sold under agreement to repurchase
Amount at risk	13,226
Loan Repo Facility | Bank of America, N.A.
Mortgage loans sold under agreement to repurchase
Amount at risk	76,289
Loan Repo Facility | Wells Fargo Bank, N.A.
Mortgage loans sold under agreement to repurchase
Amount at risk	$ 14,954