Fair Value Measurements Notional Amount of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Notional Disclosures [Abstract]
Uncommitted IRLCs	$ 247,239	$ 262,529
FMBSs related to uncommitted IRLCs	259,000	341,088
Whole loan contracts and related mortgage loans held for sale	6,669	16,507
FMBSs related to mortgage loans held for sale	174,000	232,518
Mortgage loans held for sale covered by FMBSs	$ 190,116	$ 233,378

Best Effort Contracts and Related Mortgage Loans Held for Sale

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Forward Sales of Mortgage-Backed Securities Related to Mortgage Loans Held for Sale

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Forward Sales of Mortgage-Backed Securities related to Uncommitted Interest Rate Lock Commitments

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Mortgage Loans Held for Sale Covered by Forward Sales of Mortgage-Backed Securities

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Notional Amount of Uncommitted Interest Rate Lock Commitments

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