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Securities (Summary of Investments) (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities, amortized cost	$ 981,994	$ 1,035,205
Available for sale debt securities, unrealized gains	3,295	5,208
Available for sale debt securities, unrealized losses	(99,968)	(100,071)
Available for sale debt securities, allowance for credit losses	0	0
Available for sale debt securities, fair value	885,321	940,342
Obligations of U.S. government agencies and U.S. government-sponsored enterprises
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities, amortized cost	41,641	41,639
Available for sale debt securities, unrealized gains	19	93
Available for sale debt securities, unrealized losses	(1,870)	(1,774)
Available for sale debt securities, allowance for credit losses	0	0
Available for sale debt securities, fair value	39,790	39,958
Mortgage-backed securities issued by U.S. government-sponsored agencies and U.S. government-sponsored enterprises
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities, amortized cost	922,297	973,520
Available for sale debt securities, unrealized gains	3,266	5,100
Available for sale debt securities, unrealized losses	(97,428)	(97,726)
Available for sale debt securities, allowance for credit losses	0	0
Available for sale debt securities, fair value	828,135	880,894
Obligations of states and political subdivisions
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities, amortized cost	650	650
Available for sale debt securities, unrealized gains	10	13
Available for sale debt securities, unrealized losses	0	0
Available for sale debt securities, allowance for credit losses	0	0
Available for sale debt securities, fair value	660	663
Individual name issuer trust preferred debt securities
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities, amortized cost	6,189	6,186
Available for sale debt securities, unrealized gains	0	0
Available for sale debt securities, unrealized losses	(93)	(83)
Available for sale debt securities, allowance for credit losses	0	0
Available for sale debt securities, fair value	6,096	6,103
Corporate bonds
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities, amortized cost	11,217	13,210
Available for sale debt securities, unrealized gains	0	2
Available for sale debt securities, unrealized losses	(577)	(488)
Available for sale debt securities, allowance for credit losses	0	0
Available for sale debt securities, fair value	$ 10,640	$ 12,724

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