Securities (Summary of Investments) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities, amortized cost	$ 1,152,629	$ 1,166,340
Available for sale debt securities, unrealized gains	261	270
Available for sale debt securities, unrealized losses	(152,510)	(172,682)
Allowance for credit losses on securities	0	0
Available for sale debt securities, fair value	1,000,380	993,928
Obligations of U.S. government-sponsored enterprises [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities, amortized cost	250,450	231,203
Available for sale debt securities, unrealized gains	15	1
Available for sale debt securities, unrealized losses	(24,723)	(31,622)
Allowance for credit losses on securities	0	0
Available for sale debt securities, fair value	225,742	199,582
Mortgage-backed securities issued by U.S. government-sponsored agencies and U.S. government-sponsored enterprises [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities, amortized cost	879,597	912,581
Available for sale debt securities, unrealized gains	246	269
Available for sale debt securities, unrealized losses	(125,887)	(138,748)
Allowance for credit losses on securities	0	0
Available for sale debt securities, fair value	753,956	774,102
Individual name issuer trust preferred debt securities [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities, amortized cost	9,400	9,387
Available for sale debt securities, unrealized gains	0	0
Available for sale debt securities, unrealized losses	(607)	(627)
Allowance for credit losses on securities	0	0
Available for sale debt securities, fair value	8,793	8,760
Corporate bonds
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities, amortized cost	13,182	13,169
Available for sale debt securities, unrealized gains	0	0
Available for sale debt securities, unrealized losses	(1,293)	(1,685)
Allowance for credit losses on securities	0	0
Available for sale debt securities, fair value	$ 11,889	$ 11,484

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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