Fair Value Measurements Notional Amount of Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Notional Disclosures [Abstract]
Whole loan contracts and related committed IRLCs	$ 1,683	$ 0
Uncommitted IRLCs	250,065	262,529
FMBSs related to uncommitted IRLCs	259,000	341,088
Whole loan contracts and related mortgage loans held for sale	16,576	16,507
FMBSs related to mortgage loans held for sale	212,000	232,518
Mortgage loans held for sale covered by FMBSs	$ 215,420	$ 233,378