Investment Securities - Maturity Schedule of Held-to-Maturity Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Held-to-maturity, Amortized Cost
Due within 5 years	$ 14
Due after 5 years through 10 years	7
Due after 10 years	685,707
Amortized Cost	685,728	$ 717,773
Held-to-maturity, Estimated Fair Value
Due within 5 years	14
Due after 5 years through 10 years	6
Due after 10 years	568,108
Estimated Fair Value	$ 568,128	$ 591,084