Fair Value Measurements (Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis) (Details) - USD ($) $ in Thousands		Sep. 30, 2025	Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans	[1]	$ 5,122,582	$ 5,137,838
Mortgage loans held for sale, at lower of cost or market		0	281,706
Collateral Dependent Individually Analyzed
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans		7,693	11,591
Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale, at lower of cost or market			281,706
Total assets at fair value on a nonrecurring basis		1,010	290,763
Nonrecurring | Collateral Dependent Individually Analyzed
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans		1,010	9,057
Nonrecurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale, at lower of cost or market			0
Total assets at fair value on a nonrecurring basis		0	0
Nonrecurring | Level 1 | Collateral Dependent Individually Analyzed
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans		0	0
Nonrecurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale, at lower of cost or market			281,706
Total assets at fair value on a nonrecurring basis		0	281,706
Nonrecurring | Level 2 | Collateral Dependent Individually Analyzed
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans		0	0
Nonrecurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale, at lower of cost or market			0
Total assets at fair value on a nonrecurring basis		1,010	9,057
Nonrecurring | Level 3 | Collateral Dependent Individually Analyzed
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans		$ 1,010	$ 9,057

[1] Includes net unamortized loan origination costs of $11.6 million and $10.9 million, respectively, at September 30, 2025 and December 31, 2024 and net unamortized premiums on loans purchased from and serviced by other financial institutions of $211 thousand and $242 thousand, respectively, at September 30, 2025 and December 31, 2024.