Debt Securities Held to Maturity - Expected Maturities of Held-to-Maturity Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Amortized Cost
More than one year to five years	$ 29,875
More than five years to ten years	9,996
More than ten years	10,000
Held-to-maturity debt securities, allocated and single maturity date, total	49,871
Mortgage-backed securities and collateralized mortgage obligations	351,283
Amortized Cost	401,154	$ 421,523
Fair Value
More than one year to five years	27,723
More than five years to ten years	8,661
More than ten years	7,585
Held-to-maturity debt securities, allocated and single maturity date, total	43,969
Mortgage-backed securities and collateralized mortgage obligations	313,208
Debt securities held to maturity	357,177	370,391
Mortgage-backed securities and collateralized mortgage obligations
Amortized Cost
Amortized Cost	351,283	371,652
Fair Value
Debt securities held to maturity	313,208	327,824
U.S. government and agency obligations
Amortized Cost
Amortized Cost	49,871	49,871
Fair Value
Debt securities held to maturity	$ 43,969	$ 42,567

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