Commitments and Contingencies - Guarantees Outstanding (Details) - Loans Sold or Securitized With Recourse - Loans Sold or Securitized with Recourse - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Guarantor obligation, maximum potential future payment [Abstract]
Expire in One Year or Less	$ 35
Expire After One Year Through Three Years	39
Expire After Three Years Through Five Years	30
Expire After Five Years	21,254
Total	21,358	$ 21,777
Carrying Value	27,088	28,101
Single Family Residential
Guarantor obligation, maximum potential future payment [Abstract]
Expire in One Year or Less	35
Expire After One Year Through Three Years	39
Expire After Three Years Through Five Years	30
Expire After Five Years	6,258
Total	6,362	6,781
Carrying Value	6,362	6,781
Multifamily residential
Guarantor obligation, maximum potential future payment [Abstract]
Expire in One Year or Less	0
Expire After One Year Through Three Years	0
Expire After Three Years Through Five Years	0
Expire After Five Years	14,996
Total	14,996	14,996
Carrying Value	$ 20,726	$ 21,320