Fair Value Disclosures (Schedule of Assets and Liabilities Measured at Fair Value) (Details) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2024 USD ($) $ / item	Dec. 31, 2023 USD ($) $ / item
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage loans held for sale	$ 257,187	$ 251,852
Mortgage loans held for investment at fair value	24,032	21,041
Derivative assets	$ 3,757	$ 1,618
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Prepaid Expense and Other Assets	Prepaid Expense and Other Assets
Mortgage servicing rights	$ 34,523	$ 30,932
Derivative liabilities	$ 1,088	$ 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	0.073	0.072
Prepayment Rate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage servicing rights rates	7.8	8.6
Discount Rate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage servicing rights rates	10.4	10.3
Level 2 [Member] | Recurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	$ 3,757	$ 1,618
Derivative liabilities	1,088	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	257,187	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	24,032	21,041
Mortgage servicing rights	$ 34,523	$ 30,932