Investment Securities (Credit Quality Information) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	$ 513,282	$ 559,455
Aaa
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	498,631
Aa1
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	1,470
A3
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	4,000
Baa1
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	4,000
Baa2
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	500
NR
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	4,681
U.S. Treasury and government agencies
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	143,442	148,097
U.S. Treasury and government agencies | Aaa
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	140,761
U.S. Treasury and government agencies | Aa1
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
U.S. Treasury and government agencies | A3
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
U.S. Treasury and government agencies | Baa1
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
U.S. Treasury and government agencies | Baa2
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
U.S. Treasury and government agencies | NR
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	2,681
Mortgage-backed securities
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	357,870	398,884
Mortgage-backed securities | Aaa
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	357,870
Mortgage-backed securities | Aa1
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
Mortgage-backed securities | A3
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
Mortgage-backed securities | Baa1
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
Mortgage-backed securities | Baa2
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
Mortgage-backed securities | NR
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
Obligations of states and political subdivisions
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	1,470	1,474
Obligations of states and political subdivisions | Aaa
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
Obligations of states and political subdivisions | Aa1
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	1,470
Obligations of states and political subdivisions | A3
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
Obligations of states and political subdivisions | Baa1
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
Obligations of states and political subdivisions | Baa2
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
Obligations of states and political subdivisions | NR
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
Other debt securities
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	10,500	$ 11,000
Other debt securities | Aaa
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
Other debt securities | Aa1
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	0
Other debt securities | A3
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	4,000
Other debt securities | Baa1
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	4,000
Other debt securities | Baa2
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	500
Other debt securities | NR
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]
Amortized Cost	$ 2,000