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Fair Value Disclosures (Schedule of Assets and Liabilities Measured at Fair Value) (Details)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2024
USD ($)
$ / item
Dec. 31, 2023
USD ($)
$ / item
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Mortgage loans held for sale $ 217,702 $ 251,852
Mortgage loans held for investment at fair value 21,620 21,041
Derivative assets $ 3,790 $ 1,618
Derivative Asset, Statement of Financial Position [Extensible Enumeration] Prepaid Expense and Other Assets Prepaid Expense and Other Assets
Mortgage servicing rights $ 32,734 $ 30,932
Derivative liabilities $ 979 $ 5,291
Derivative Liability, Statement of Financial Position [Extensible Enumeration] Accrued Liabilities and Other Liabilities Accrued Liabilities and Other Liabilities
Mortgage servicing rights, cost to service per year per loan | $ / item 0.072 0.072
Prepayment Rate [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Mortgage servicing rights rates 8.7 8.6
Discount Rate [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Mortgage servicing rights rates 10.3 10.3
Level 2 [Member] | Recurring [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Derivative assets $ 3,790 $ 1,618
Derivative liabilities 979 5,291
Level 2 [Member] | Recurring [Member] | Mortgage Loan Held For Sale [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Mortgage loans held for sale 217,702 251,852
Level 3 [Member] | Recurring [Member] | Prepaid Expenses And Other Assets [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Mortgage loans held for investment at fair value 21,620 21,041
Mortgage servicing rights $ 32,734 $ 30,932