Fair Value Measurements Notional Amount of Financial Instruments (Details) - USD ($) $ in Thousands |
Sep. 30, 2021 |
Dec. 31, 2020 |
---|---|---|
Notional Disclosures [Abstract] | ||
Whole loan contracts and related committed IRLCs | $ 5,294 | $ 2,354 |
Uncommitted IRLCs | 273,470 | 208,500 |
FMBSs related to uncommitted IRLCs | 258,000 | 183,000 |
Whole loan contracts and related mortgage loans held for sale | 6,813 | 78,142 |
FMBSs related to mortgage loans held for sale | 192,000 | 131,000 |
Mortgage loans held for sale covered by FMBSs | $ 192,672 | $ 148,331 |