Short-Term Debt - Principal only stripped MBS (Details) $ in Thousands	Jun. 30, 2024 USD ($)
Bank of America, N.A. | Principal-only stripped MBS
Mortgage loans sold under agreement to repurchase
Amount at risk	$ 451
JP Morgan Chase Bank | Principal-only stripped MBS
Mortgage loans sold under agreement to repurchase
Amount at risk	20,982
Wells Fargo Bank, N.A. | Principal-only stripped MBS
Mortgage loans sold under agreement to repurchase
Amount at risk	18,073
Santander US Capital Markets LLC | Principal-only stripped MBS
Mortgage loans sold under agreement to repurchase
Amount at risk	10,766
Loan Repo Facility | Bank of America, N.A.
Mortgage loans sold under agreement to repurchase
Amount at risk	108,009
Loan Repo Facility | Wells Fargo Bank, N.A.
Mortgage loans sold under agreement to repurchase
Amount at risk	$ 17,568