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Fair Value Measurements - Summarizes Differences Between Fair Value and Principal Balance for Mortgage Loans Held for Sale Measure at Fair Value (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Aggregate Fair Value    
Summarizes differences between fair value and principal balance for mortgage loans held for sale measure at fair value    
Mortgage loans held for sale measured at fair value $ 241,613 $ 110,105
Aggregate Unpaid Principal Balance    
Summarizes differences between fair value and principal balance for mortgage loans held for sale measure at fair value    
Mortgage loans held for sale measured at fair value 239,907 108,143
Difference    
Summarizes differences between fair value and principal balance for mortgage loans held for sale measure at fair value    
Mortgage loans held for sale measured at fair value $ 1,706 $ 1,962