Fair Value Measurements Notional Amount of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Notional Disclosures [Abstract]
Whole loan contracts and related committed IRLCs	$ 434	$ 0
Uncommitted IRLCs	644,526	300,595
FMBSs related to uncommitted IRLCs	697,000	335,000
Whole loan contracts and related mortgage loans held for sale	12,231	15,044
FMBSs related to mortgage loans held for sale	270,000	290,000
Mortgage loans held for sale covered by FMBSs	$ 256,787	$ 302,790